Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
c5a57081 | 3 | Copyright (C) 1986-2012 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "gdbcmd.h" | |
22 | #include "call-cmds.h" | |
210661e7 EZ |
23 | #include "cli/cli-cmds.h" |
24 | #include "cli/cli-script.h" | |
25 | #include "cli/cli-setshow.h" | |
18a642a1 | 26 | #include "cli/cli-decode.h" |
c906108c SS |
27 | #include "symtab.h" |
28 | #include "inferior.h" | |
60250e8b | 29 | #include "exceptions.h" |
042be3a9 | 30 | #include <signal.h> |
c906108c SS |
31 | #include "target.h" |
32 | #include "breakpoint.h" | |
33 | #include "gdbtypes.h" | |
34 | #include "expression.h" | |
35 | #include "value.h" | |
36 | #include "language.h" | |
c5aa993b | 37 | #include "terminal.h" /* For job_control. */ |
c906108c | 38 | #include "annotate.h" |
c5f0f3d0 | 39 | #include "completer.h" |
c906108c | 40 | #include "top.h" |
d4f3574e | 41 | #include "version.h" |
210661e7 | 42 | #include "serial.h" |
d16aafd8 | 43 | #include "doublest.h" |
f9c696d2 | 44 | #include "gdb_assert.h" |
f17517ea | 45 | #include "main.h" |
2e03ee74 | 46 | #include "event-loop.h" |
8ea051c5 | 47 | #include "gdbthread.h" |
9dea9163 | 48 | #include "python/python.h" |
b4a14fd0 | 49 | #include "interps.h" |
6dea1fbd | 50 | #include "observer.h" |
c906108c | 51 | |
371d5dec | 52 | /* readline include files. */ |
dbda9972 AC |
53 | #include "readline/readline.h" |
54 | #include "readline/history.h" | |
c906108c SS |
55 | |
56 | /* readline defines this. */ | |
57 | #undef savestring | |
58 | ||
59 | #include <sys/types.h> | |
c906108c | 60 | |
c2c6d25f | 61 | #include "event-top.h" |
c906108c SS |
62 | #include "gdb_string.h" |
63 | #include "gdb_stat.h" | |
64 | #include <ctype.h> | |
8b93c638 JM |
65 | #include "ui-out.h" |
66 | #include "cli-out.h" | |
c906108c | 67 | |
95298e72 PM |
68 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
69 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
70 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
71 | ||
371d5dec | 72 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
73 | |
74 | #ifndef DEFAULT_PROMPT | |
75 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
76 | #endif |
77 | ||
78 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
79 | ||
eaae3919 EZ |
80 | #ifndef PATH_MAX |
81 | # ifdef FILENAME_MAX | |
82 | # define PATH_MAX FILENAME_MAX | |
83 | # else | |
84 | # define PATH_MAX 512 | |
85 | # endif | |
86 | #endif | |
87 | ||
c906108c SS |
88 | #ifndef GDBINIT_FILENAME |
89 | #define GDBINIT_FILENAME ".gdbinit" | |
90 | #endif | |
eaae3919 | 91 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
92 | |
93 | int inhibit_gdbinit = 0; | |
94 | ||
95 | /* If nonzero, and GDB has been configured to be able to use windows, | |
96 | attempt to open them upon startup. */ | |
97 | ||
f15ab4a7 | 98 | int use_windows = 0; |
c906108c | 99 | |
c906108c SS |
100 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
101 | ||
050a2e1d PA |
102 | /* Flag for whether we want to confirm potentially dangerous |
103 | operations. Default is yes. */ | |
104 | ||
e360902b | 105 | int confirm = 1; |
c906108c | 106 | |
920d2a44 | 107 | static void |
e360902b | 108 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
109 | struct cmd_list_element *c, const char *value) |
110 | { | |
3e43a32a MS |
111 | fprintf_filtered (file, _("Whether to confirm potentially " |
112 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
113 | value); |
114 | } | |
c906108c | 115 | |
371d5dec MS |
116 | /* stdio stream that command input is being read from. Set to stdin |
117 | normally. Set by source_command to the file we are sourcing. Set | |
118 | to NULL if we are executing a user-defined command or interacting | |
119 | via a GUI. */ | |
c906108c SS |
120 | |
121 | FILE *instream; | |
122 | ||
698ba934 DJ |
123 | /* Flag to indicate whether a user defined command is currently running. */ |
124 | ||
125 | int in_user_command; | |
126 | ||
c906108c SS |
127 | /* Current working directory. */ |
128 | ||
129 | char *current_directory; | |
130 | ||
131 | /* The directory name is actually stored here (usually). */ | |
132 | char gdb_dirbuf[1024]; | |
133 | ||
134 | /* Function to call before reading a command, if nonzero. | |
135 | The function receives two args: an input stream, | |
136 | and a prompt string. */ | |
137 | ||
507f3c78 | 138 | void (*window_hook) (FILE *, char *); |
c906108c SS |
139 | |
140 | int epoch_interface; | |
141 | int xgdb_verbose; | |
142 | ||
c906108c SS |
143 | /* Buffer used for reading command lines, and the size |
144 | allocated for it so far. */ | |
145 | ||
dc7eb48e PA |
146 | char *saved_command_line; |
147 | int saved_command_line_size = 100; | |
c906108c SS |
148 | |
149 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 150 | affects things like recording into the command history, commands |
c906108c SS |
151 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
152 | whatever) can issue its own commands and also send along commands | |
153 | from the user, and have the user not notice that the user interface | |
154 | is issuing commands too. */ | |
155 | int server_command; | |
156 | ||
157 | /* Baud rate specified for talking to serial target systems. Default | |
158 | is left as -1, so targets can choose their own defaults. */ | |
371d5dec MS |
159 | /* FIXME: This means that "show remotebaud" and gr_files_info can |
160 | print -1 or (unsigned int)-1. This is a Bad User Interface. */ | |
c906108c SS |
161 | |
162 | int baud_rate = -1; | |
163 | ||
371d5dec | 164 | /* Timeout limit for response from target. */ |
c906108c | 165 | |
ce808e91 AC |
166 | /* The default value has been changed many times over the years. It |
167 | was originally 5 seconds. But that was thought to be a long time | |
168 | to sit and wait, so it was changed to 2 seconds. That was thought | |
169 | to be plenty unless the connection was going through some terminal | |
170 | server or multiplexer or other form of hairy serial connection. | |
171 | ||
172 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
173 | it began being used in other remote-* targets. It appears that the | |
174 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 175 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
176 | |
177 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
178 | 20 seconds is far worse. This demonstrates the difficulty of using | |
179 | a single variable for all protocol timeouts. | |
180 | ||
181 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 182 | back to 2 seconds in 1999. */ |
ce808e91 AC |
183 | |
184 | int remote_timeout = 2; | |
c906108c SS |
185 | |
186 | /* Non-zero tells remote* modules to output debugging info. */ | |
187 | ||
188 | int remote_debug = 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 | /* Hooks for alternate command interfaces. */ |
196 | ||
371d5dec MS |
197 | /* Called after most modules have been initialized, but before taking |
198 | users command file. | |
1ad24239 | 199 | |
371d5dec MS |
200 | If the UI fails to initialize and it wants GDB to continue using |
201 | the default UI, then it should clear this hook before returning. */ | |
c906108c | 202 | |
9a4105ab | 203 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a | 204 | |
371d5dec MS |
205 | /* This hook is called from within gdb's many mini-event loops which |
206 | could steal control from a real user interface's event loop. It | |
207 | returns non-zero if the user is requesting a detach, zero | |
208 | otherwise. */ | |
7a292a7a | 209 | |
98bbd631 | 210 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
211 | |
212 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 213 | throw_exception(). */ |
c906108c | 214 | |
9a4105ab | 215 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
216 | |
217 | ||
c906108c SS |
218 | /* Called from print_frame_info to list the line we stopped in. */ |
219 | ||
371d5dec MS |
220 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
221 | int line, | |
222 | int stopline, | |
223 | int noerror); | |
c906108c SS |
224 | /* Replaces most of query. */ |
225 | ||
9a4105ab | 226 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
227 | |
228 | /* Replaces most of warning. */ | |
229 | ||
9a4105ab | 230 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 231 | |
9a4105ab AC |
232 | /* These three functions support getting lines of text from the user. |
233 | They are used in sequence. First deprecated_readline_begin_hook is | |
234 | called with a text string that might be (for example) a message for | |
235 | the user to type in a sequence of commands to be executed at a | |
236 | breakpoint. If this function calls back to a GUI, it might take | |
237 | this opportunity to pop up a text interaction window with this | |
238 | message. Next, deprecated_readline_hook is called with a prompt | |
239 | that is emitted prior to collecting the user input. It can be | |
240 | called multiple times. Finally, deprecated_readline_end_hook is | |
241 | called to notify the GUI that we are done with the interaction | |
242 | window and it can close it. */ | |
c906108c | 243 | |
9a4105ab AC |
244 | void (*deprecated_readline_begin_hook) (char *, ...); |
245 | char *(*deprecated_readline_hook) (char *); | |
246 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 247 | |
6426a772 | 248 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 249 | to or detached from an already running process. */ |
6426a772 | 250 | |
9a4105ab AC |
251 | void (*deprecated_attach_hook) (void); |
252 | void (*deprecated_detach_hook) (void); | |
6426a772 | 253 | |
371d5dec MS |
254 | /* Called during long calculations to allow GUI to repair window |
255 | damage, and to check for stop buttons, etc... */ | |
c906108c | 256 | |
9a4105ab | 257 | void (*deprecated_interactive_hook) (void); |
c906108c | 258 | |
c378eb4e | 259 | /* Tell the GUI someone changed the register REGNO. -1 means |
c906108c | 260 | that the caller does not know which register changed or |
371d5dec | 261 | that several registers have changed (see value_assign). */ |
9a4105ab | 262 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 263 | |
371d5dec MS |
264 | /* Called when going to wait for the target. Usually allows the GUI |
265 | to run while waiting for target events. */ | |
c906108c | 266 | |
9a4105ab | 267 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
268 | struct target_waitstatus *status, |
269 | int options); | |
c906108c | 270 | |
371d5dec MS |
271 | /* Used by UI as a wrapper around command execution. May do various |
272 | things like enabling/disabling buttons, etc... */ | |
c906108c | 273 | |
371d5dec MS |
274 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
275 | char *cmd, int from_tty); | |
c906108c | 276 | |
96baa820 JM |
277 | /* Called after a `set' command has finished. Is only run if the |
278 | `set' command succeeded. */ | |
279 | ||
9a4105ab | 280 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 281 | |
c906108c SS |
282 | /* Called when the current thread changes. Argument is thread id. */ |
283 | ||
9a4105ab | 284 | void (*deprecated_context_hook) (int id); |
c906108c | 285 | |
c906108c SS |
286 | /* Handler for SIGHUP. */ |
287 | ||
288 | #ifdef SIGHUP | |
392a587b | 289 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 290 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 291 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
292 | /* static */ void |
293 | quit_cover (void) | |
c906108c | 294 | { |
e360902b PA |
295 | /* Stop asking user for confirmation --- we're exiting. This |
296 | prevents asking the user dumb questions. */ | |
297 | confirm = 0; | |
c5aa993b | 298 | quit_command ((char *) 0, 0); |
c906108c SS |
299 | } |
300 | #endif /* defined SIGHUP */ | |
301 | \f | |
7a9dd1b2 | 302 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 303 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 304 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 305 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 306 | /* static */ int source_line_number; |
c906108c SS |
307 | |
308 | /* Name of the file we are sourcing. */ | |
392a587b | 309 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 310 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 311 | event-top.c into this file, top.c. */ |
05159abe | 312 | /* static */ const char *source_file_name; |
c906108c | 313 | |
c906108c SS |
314 | /* Clean up on error during a "source" command (or execution of a |
315 | user-defined command). */ | |
316 | ||
d318976c | 317 | void |
e41a3b1a | 318 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
319 | { |
320 | /* Restore the previous input stream. */ | |
321 | instream = stream; | |
322 | } | |
323 | ||
324 | /* Read commands from STREAM. */ | |
325 | void | |
fba45db2 | 326 | read_command_file (FILE *stream) |
c906108c SS |
327 | { |
328 | struct cleanup *cleanups; | |
329 | ||
e41a3b1a | 330 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 331 | instream = stream; |
c5aa993b | 332 | command_loop (); |
c906108c SS |
333 | do_cleanups (cleanups); |
334 | } | |
335 | \f | |
507f3c78 | 336 | void (*pre_init_ui_hook) (void); |
c906108c | 337 | |
e41a3b1a AC |
338 | #ifdef __MSDOS__ |
339 | void | |
340 | do_chdir_cleanup (void *old_dir) | |
341 | { | |
342 | chdir (old_dir); | |
b8c9b27d | 343 | xfree (old_dir); |
e41a3b1a AC |
344 | } |
345 | #endif | |
346 | ||
028d0ed5 | 347 | struct cleanup * |
4e5d721f DE |
348 | prepare_execute_command (void) |
349 | { | |
028d0ed5 TJB |
350 | struct value *mark; |
351 | struct cleanup *cleanup; | |
352 | ||
353 | mark = value_mark (); | |
354 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 355 | |
371d5dec MS |
356 | /* With multiple threads running while the one we're examining is |
357 | stopped, the dcache can get stale without us being able to detect | |
358 | it. For the duration of the command, though, use the dcache to | |
359 | help things like backtrace. */ | |
4e5d721f DE |
360 | if (non_stop) |
361 | target_dcache_invalidate (); | |
028d0ed5 TJB |
362 | |
363 | return cleanup; | |
4e5d721f DE |
364 | } |
365 | ||
77cce10f PA |
366 | /* Tell the user if the language has changed (except first time) after |
367 | executing a command. */ | |
368 | ||
369 | void | |
370 | check_frame_language_change (void) | |
371 | { | |
372 | static int warned = 0; | |
373 | ||
374 | /* First make sure that a new frame has been selected, in case the | |
375 | command or the hooks changed the program state. */ | |
376 | deprecated_safe_get_selected_frame (); | |
377 | if (current_language != expected_language) | |
378 | { | |
379 | if (language_mode == language_mode_auto && info_verbose) | |
380 | { | |
381 | language_info (1); /* Print what changed. */ | |
382 | } | |
383 | warned = 0; | |
384 | } | |
385 | ||
386 | /* Warn the user if the working language does not match the language | |
387 | of the current frame. Only warn the user if we are actually | |
388 | running the program, i.e. there is a stack. */ | |
389 | /* FIXME: This should be cacheing the frame and only running when | |
390 | the frame changes. */ | |
391 | ||
392 | if (has_stack_frames ()) | |
393 | { | |
394 | enum language flang; | |
395 | ||
396 | flang = get_frame_language (); | |
397 | if (!warned | |
398 | && flang != language_unknown | |
399 | && flang != current_language->la_language) | |
400 | { | |
401 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
402 | warned = 1; | |
403 | } | |
404 | } | |
405 | } | |
406 | ||
648bf667 | 407 | /* Execute the line P as a command, in the current user context. |
d318976c | 408 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 409 | |
d318976c FN |
410 | void |
411 | execute_command (char *p, int from_tty) | |
c906108c | 412 | { |
353d1d73 | 413 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 414 | struct cmd_list_element *c; |
d318976c | 415 | char *line; |
4e5d721f | 416 | |
353d1d73 | 417 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 418 | cleanup = prepare_execute_command (); |
c906108c | 419 | |
d318976c FN |
420 | /* Force cleanup of any alloca areas if using C alloca instead of |
421 | a builtin alloca. */ | |
422 | alloca (0); | |
c906108c | 423 | |
d318976c FN |
424 | /* This can happen when command_line_input hits end of file. */ |
425 | if (p == NULL) | |
5fe41fbf TT |
426 | { |
427 | do_cleanups (cleanup); | |
428 | return; | |
429 | } | |
c906108c | 430 | |
49d03eab | 431 | target_log_command (p); |
8b93c638 | 432 | |
d318976c FN |
433 | while (*p == ' ' || *p == '\t') |
434 | p++; | |
435 | if (*p) | |
8b93c638 | 436 | { |
d318976c FN |
437 | char *arg; |
438 | line = p; | |
8b93c638 | 439 | |
16026cd7 AS |
440 | /* If trace-commands is set then this will print this command. */ |
441 | print_command_trace (p); | |
442 | ||
d318976c | 443 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 444 | |
d318976c FN |
445 | /* Pass null arg rather than an empty one. */ |
446 | arg = *p ? p : 0; | |
8b93c638 | 447 | |
9f60d481 AC |
448 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
449 | while the is_complete_command(cfunc) test is just plain | |
450 | bogus. They should both be replaced by a test of the form | |
451 | c->strip_trailing_white_space_p. */ | |
452 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
453 | can't be replaced with func. This is because it is the | |
454 | cfunc, and not the func, that has the value that the | |
455 | is_complete_command hack is testing for. */ | |
456 | /* Clear off trailing whitespace, except for set and complete | |
457 | command. */ | |
d318976c FN |
458 | if (arg |
459 | && c->type != set_cmd | |
bbaca940 | 460 | && !is_complete_command (c)) |
8b93c638 | 461 | { |
d318976c FN |
462 | p = arg + strlen (arg) - 1; |
463 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
464 | p--; | |
465 | *(p + 1) = '\0'; | |
8b93c638 JM |
466 | } |
467 | ||
371d5dec | 468 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 469 | execute_cmd_pre_hook (c); |
c906108c | 470 | |
d318976c FN |
471 | if (c->flags & DEPRECATED_WARN_USER) |
472 | deprecated_cmd_warning (&line); | |
c906108c | 473 | |
7d74f244 DE |
474 | /* c->user_commands would be NULL in the case of a python command. */ |
475 | if (c->class == class_user && c->user_commands) | |
d318976c FN |
476 | execute_user_command (c, arg); |
477 | else if (c->type == set_cmd || c->type == show_cmd) | |
050a2e1d | 478 | do_setshow_command (arg, from_tty, c); |
f436dd25 | 479 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 480 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 481 | else if (deprecated_call_command_hook) |
050a2e1d | 482 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 483 | else |
050a2e1d | 484 | cmd_func (c, arg, from_tty); |
b4a14fd0 PA |
485 | |
486 | /* If the interpreter is in sync mode (we're running a user | |
487 | command's list, running command hooks or similars), and we | |
488 | just ran a synchronous command that started the target, wait | |
489 | for that command to end. */ | |
0f641c01 | 490 | if (!interpreter_async && sync_execution) |
b4a14fd0 PA |
491 | { |
492 | while (gdb_do_one_event () >= 0) | |
493 | if (!sync_execution) | |
494 | break; | |
495 | } | |
496 | ||
371d5dec | 497 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 498 | execute_cmd_post_hook (c); |
c906108c | 499 | |
c906108c SS |
500 | } |
501 | ||
77cce10f | 502 | check_frame_language_change (); |
028d0ed5 | 503 | |
353d1d73 JK |
504 | do_cleanups (cleanup); |
505 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
506 | } |
507 | ||
5da1313b JK |
508 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
509 | returned string, do not display it to the screen. BATCH_FLAG will be | |
510 | temporarily set to true. */ | |
511 | ||
512 | char * | |
513 | execute_command_to_string (char *p, int from_tty) | |
514 | { | |
515 | struct ui_file *str_file; | |
516 | struct cleanup *cleanup; | |
517 | char *retval; | |
518 | ||
519 | /* GDB_STDOUT should be better already restored during these | |
520 | restoration callbacks. */ | |
521 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
522 | ||
b4a14fd0 PA |
523 | make_cleanup_restore_integer (&interpreter_async); |
524 | interpreter_async = 0; | |
525 | ||
5da1313b JK |
526 | str_file = mem_fileopen (); |
527 | ||
8d4d924b | 528 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
529 | make_cleanup_restore_ui_file (&gdb_stdout); |
530 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
531 | make_cleanup_restore_ui_file (&gdb_stdlog); |
532 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
533 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
534 | ||
79a45e25 | 535 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
536 | warning (_("Current output protocol does not support redirection")); |
537 | else | |
79a45e25 | 538 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
539 | |
540 | gdb_stdout = str_file; | |
541 | gdb_stderr = str_file; | |
8d4d924b JK |
542 | gdb_stdlog = str_file; |
543 | gdb_stdtarg = str_file; | |
544 | gdb_stdtargerr = str_file; | |
5da1313b JK |
545 | |
546 | execute_command (p, from_tty); | |
547 | ||
548 | retval = ui_file_xstrdup (str_file, NULL); | |
549 | ||
550 | do_cleanups (cleanup); | |
551 | ||
552 | return retval; | |
553 | } | |
554 | ||
d318976c FN |
555 | /* Read commands from `instream' and execute them |
556 | until end of file or error reading instream. */ | |
c906108c | 557 | |
d318976c FN |
558 | void |
559 | command_loop (void) | |
c906108c | 560 | { |
d318976c FN |
561 | struct cleanup *old_chain; |
562 | char *command; | |
563 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 564 | |
d318976c FN |
565 | while (instream && !feof (instream)) |
566 | { | |
d318976c | 567 | if (window_hook && instream == stdin) |
ab821bc6 | 568 | (*window_hook) (instream, get_prompt ()); |
c906108c | 569 | |
d318976c FN |
570 | quit_flag = 0; |
571 | if (instream == stdin && stdin_is_tty) | |
572 | reinitialize_more_filter (); | |
573 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 574 | |
c378eb4e | 575 | /* Get a command-line. This calls the readline package. */ |
d318976c | 576 | command = command_line_input (instream == stdin ? |
ab821bc6 | 577 | get_prompt () : (char *) NULL, |
d318976c | 578 | instream == stdin, "prompt"); |
d318976c | 579 | if (command == 0) |
5fe41fbf TT |
580 | { |
581 | do_cleanups (old_chain); | |
582 | return; | |
583 | } | |
c906108c | 584 | |
0f3bb72e | 585 | make_command_stats_cleanup (1); |
9e0b60a8 | 586 | |
d318976c | 587 | execute_command (command, instream == stdin); |
347bddb7 PA |
588 | |
589 | /* Do any commands attached to breakpoint we are stopped at. */ | |
590 | bpstat_do_actions (); | |
591 | ||
d318976c | 592 | do_cleanups (old_chain); |
9e0b60a8 | 593 | } |
9e0b60a8 | 594 | } |
d318976c | 595 | \f |
47a80e90 TT |
596 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
597 | set via prevent_dont_repeat. */ | |
598 | ||
599 | static int suppress_dont_repeat = 0; | |
600 | ||
d318976c | 601 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 602 | |
d318976c FN |
603 | void |
604 | dont_repeat (void) | |
9e0b60a8 | 605 | { |
47a80e90 | 606 | if (suppress_dont_repeat || server_command) |
d318976c | 607 | return; |
9e0b60a8 | 608 | |
d318976c | 609 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
610 | thing read from stdin in line and don't want to delete it. Null |
611 | lines won't repeat here in any case. */ | |
d318976c | 612 | if (instream == stdin) |
dc7eb48e | 613 | *saved_command_line = 0; |
9e0b60a8 | 614 | } |
47a80e90 TT |
615 | |
616 | /* Prevent dont_repeat from working, and return a cleanup that | |
617 | restores the previous state. */ | |
618 | ||
619 | struct cleanup * | |
620 | prevent_dont_repeat (void) | |
621 | { | |
622 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
623 | ||
624 | suppress_dont_repeat = 1; | |
625 | return result; | |
626 | } | |
627 | ||
d318976c FN |
628 | \f |
629 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 630 | |
d318976c FN |
631 | It prints PROMPT_ARG once at the start. |
632 | Action is compatible with "readline", e.g. space for the result is | |
633 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 634 | |
d318976c FN |
635 | A NULL return means end of file. */ |
636 | char * | |
637 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 638 | { |
d318976c FN |
639 | int c; |
640 | char *result; | |
641 | int input_index = 0; | |
642 | int result_size = 80; | |
9e0b60a8 | 643 | |
d318976c | 644 | if (prompt_arg) |
9e0b60a8 | 645 | { |
d318976c FN |
646 | /* Don't use a _filtered function here. It causes the assumed |
647 | character position to be off, since the newline we read from | |
648 | the user is not accounted for. */ | |
649 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
650 | gdb_flush (gdb_stdout); |
651 | } | |
652 | ||
d318976c | 653 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
654 | |
655 | while (1) | |
656 | { | |
d318976c FN |
657 | /* Read from stdin if we are executing a user defined command. |
658 | This is the right thing for prompt_for_continue, at least. */ | |
659 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 660 | |
d318976c | 661 | if (c == EOF) |
9e0b60a8 | 662 | { |
d318976c FN |
663 | if (input_index > 0) |
664 | /* The last line does not end with a newline. Return it, and | |
665 | if we are called again fgetc will still return EOF and | |
666 | we'll return NULL then. */ | |
9e0b60a8 | 667 | break; |
b8c9b27d | 668 | xfree (result); |
d318976c | 669 | return NULL; |
9e0b60a8 | 670 | } |
c5aa993b | 671 | |
d318976c | 672 | if (c == '\n') |
9e0b60a8 | 673 | { |
d318976c FN |
674 | if (input_index > 0 && result[input_index - 1] == '\r') |
675 | input_index--; | |
676 | break; | |
9e0b60a8 | 677 | } |
9e0b60a8 | 678 | |
d318976c FN |
679 | result[input_index++] = c; |
680 | while (input_index >= result_size) | |
9e0b60a8 | 681 | { |
d318976c FN |
682 | result_size *= 2; |
683 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 684 | } |
9e0b60a8 JM |
685 | } |
686 | ||
d318976c FN |
687 | result[input_index++] = '\0'; |
688 | return result; | |
9e0b60a8 JM |
689 | } |
690 | ||
d318976c FN |
691 | /* Variables which control command line editing and history |
692 | substitution. These variables are given default values at the end | |
693 | of this file. */ | |
694 | static int command_editing_p; | |
920d2a44 | 695 | |
d318976c FN |
696 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
697 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 698 | event-top.c into this file, top.c. */ |
920d2a44 | 699 | |
d318976c | 700 | /* static */ int history_expansion_p; |
920d2a44 | 701 | |
d318976c | 702 | static int write_history_p; |
920d2a44 AC |
703 | static void |
704 | show_write_history_p (struct ui_file *file, int from_tty, | |
705 | struct cmd_list_element *c, const char *value) | |
706 | { | |
707 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
708 | value); | |
709 | } | |
710 | ||
d318976c | 711 | static int history_size; |
920d2a44 AC |
712 | static void |
713 | show_history_size (struct ui_file *file, int from_tty, | |
714 | struct cmd_list_element *c, const char *value) | |
715 | { | |
716 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
717 | value); | |
718 | } | |
719 | ||
d318976c | 720 | static char *history_filename; |
920d2a44 AC |
721 | static void |
722 | show_history_filename (struct ui_file *file, int from_tty, | |
723 | struct cmd_list_element *c, const char *value) | |
724 | { | |
3e43a32a MS |
725 | fprintf_filtered (file, _("The filename in which to record " |
726 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
727 | value); |
728 | } | |
9e0b60a8 | 729 | |
b4f5539f | 730 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 731 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
732 | a single gdb invocation. At the ordinary top-level prompt we might |
733 | be using the async readline. That means we can't use | |
734 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
735 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
736 | `define'), gdb wants a synchronous response. |
737 | ||
738 | We used to call readline() directly, running it in synchronous | |
739 | mode. But mixing modes this way is not supported, and as of | |
740 | readline 5.x it no longer works; the arrow keys come unbound during | |
741 | the synchronous call. So we make a nested call into the event | |
742 | loop. That's what gdb_readline_wrapper is for. */ | |
743 | ||
744 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
745 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
746 | the user types Control-D for EOF. */ | |
747 | static int gdb_readline_wrapper_done; | |
748 | ||
749 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
750 | is seen. */ | |
751 | static char *gdb_readline_wrapper_result; | |
752 | ||
753 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
754 | to be called after the newline is processed (which will redisplay | |
755 | the prompt). But in gdb_readline_wrapper we will not get a new | |
756 | prompt until the next call, or until we return to the event loop. | |
757 | So we disable this hook around the newline and restore it before we | |
758 | return. */ | |
759 | static void (*saved_after_char_processing_hook) (void); | |
760 | ||
761 | /* This function is called when readline has seen a complete line of | |
762 | text. */ | |
763 | ||
764 | static void | |
765 | gdb_readline_wrapper_line (char *line) | |
766 | { | |
767 | gdb_assert (!gdb_readline_wrapper_done); | |
768 | gdb_readline_wrapper_result = line; | |
769 | gdb_readline_wrapper_done = 1; | |
770 | ||
771 | /* Prevent operate-and-get-next from acting too early. */ | |
772 | saved_after_char_processing_hook = after_char_processing_hook; | |
773 | after_char_processing_hook = NULL; | |
1b05479a DJ |
774 | |
775 | /* Prevent parts of the prompt from being redisplayed if annotations | |
776 | are enabled, and readline's state getting out of sync. */ | |
777 | if (async_command_editing_p) | |
778 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
779 | } |
780 | ||
781 | struct gdb_readline_wrapper_cleanup | |
782 | { | |
783 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
784 | int already_prompted_orig; |
785 | }; | |
786 | ||
787 | static void | |
788 | gdb_readline_wrapper_cleanup (void *arg) | |
789 | { | |
790 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
791 | ||
2e03ee74 | 792 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
793 | |
794 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
795 | input_handler = cleanup->handler_orig; | |
796 | gdb_readline_wrapper_result = NULL; | |
797 | gdb_readline_wrapper_done = 0; | |
798 | ||
799 | after_char_processing_hook = saved_after_char_processing_hook; | |
800 | saved_after_char_processing_hook = NULL; | |
801 | ||
802 | xfree (cleanup); | |
803 | } | |
804 | ||
b4f5539f TT |
805 | char * |
806 | gdb_readline_wrapper (char *prompt) | |
807 | { | |
2e03ee74 DJ |
808 | struct cleanup *back_to; |
809 | struct gdb_readline_wrapper_cleanup *cleanup; | |
810 | char *retval; | |
811 | ||
812 | cleanup = xmalloc (sizeof (*cleanup)); | |
813 | cleanup->handler_orig = input_handler; | |
814 | input_handler = gdb_readline_wrapper_line; | |
815 | ||
2e03ee74 DJ |
816 | cleanup->already_prompted_orig = rl_already_prompted; |
817 | ||
818 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
819 | ||
820 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 821 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
822 | rl_already_prompted = 1; |
823 | ||
362646f5 | 824 | if (after_char_processing_hook) |
2e03ee74 DJ |
825 | (*after_char_processing_hook) (); |
826 | gdb_assert (after_char_processing_hook == NULL); | |
827 | ||
e0dd0826 | 828 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
829 | if (gdb_readline_wrapper_done) |
830 | break; | |
b4f5539f | 831 | |
2e03ee74 DJ |
832 | retval = gdb_readline_wrapper_result; |
833 | do_cleanups (back_to); | |
834 | return retval; | |
b4f5539f TT |
835 | } |
836 | ||
9e0b60a8 | 837 | \f |
467d8519 TT |
838 | /* The current saved history number from operate-and-get-next. |
839 | This is -1 if not valid. */ | |
840 | static int operate_saved_history = -1; | |
841 | ||
842 | /* This is put on the appropriate hook and helps operate-and-get-next | |
843 | do its work. */ | |
b9362cc7 | 844 | static void |
5ae5f592 | 845 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
846 | { |
847 | int delta = where_history () - operate_saved_history; | |
5d502164 | 848 | |
467d8519 TT |
849 | /* The `key' argument to rl_get_previous_history is ignored. */ |
850 | rl_get_previous_history (delta, 0); | |
851 | operate_saved_history = -1; | |
852 | ||
853 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 854 | rl_redisplay (); |
467d8519 TT |
855 | |
856 | after_char_processing_hook = NULL; | |
857 | rl_pre_input_hook = NULL; | |
858 | } | |
859 | ||
860 | /* This is a gdb-local readline command handler. It accepts the | |
861 | current command line (like RET does) and, if this command was taken | |
862 | from the history, arranges for the next command in the history to | |
863 | appear on the command line when the prompt returns. | |
864 | We ignore the arguments. */ | |
865 | static int | |
866 | gdb_rl_operate_and_get_next (int count, int key) | |
867 | { | |
b5686e99 MK |
868 | int where; |
869 | ||
362646f5 AC |
870 | /* Use the async hook. */ |
871 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 872 | |
b5686e99 MK |
873 | /* Find the current line, and find the next line to use. */ |
874 | where = where_history(); | |
875 | ||
876 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
877 | history_max_entries in readline-4.2. When we do a new readline | |
878 | import, we should probably change it here too, even though | |
879 | readline maintains backwards compatibility for now by still | |
880 | defining max_input_history. */ | |
881 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
882 | (where >= history_length - 1)) | |
883 | operate_saved_history = where; | |
884 | else | |
885 | operate_saved_history = where + 1; | |
886 | ||
467d8519 TT |
887 | return rl_newline (1, key); |
888 | } | |
889 | \f | |
d318976c FN |
890 | /* Read one line from the command input stream `instream' |
891 | into the local static buffer `linebuffer' (whose current length | |
892 | is `linelength'). | |
893 | The buffer is made bigger as necessary. | |
894 | Returns the address of the start of the line. | |
9e0b60a8 | 895 | |
d318976c | 896 | NULL is returned for end of file. |
9e0b60a8 | 897 | |
d318976c FN |
898 | *If* the instream == stdin & stdin is a terminal, the line read |
899 | is copied into the file line saver (global var char *line, | |
900 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 901 | |
d318976c FN |
902 | This routine either uses fancy command line editing or |
903 | simple input as the user has requested. */ | |
10689f25 | 904 | |
d318976c FN |
905 | char * |
906 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 907 | { |
d318976c FN |
908 | static char *linebuffer = 0; |
909 | static unsigned linelength = 0; | |
52f0bd74 | 910 | char *p; |
d318976c FN |
911 | char *p1; |
912 | char *rl; | |
913 | char *local_prompt = prompt_arg; | |
914 | char *nline; | |
915 | char got_eof = 0; | |
916 | ||
917 | /* The annotation suffix must be non-NULL. */ | |
918 | if (annotation_suffix == NULL) | |
919 | annotation_suffix = ""; | |
9e0b60a8 | 920 | |
d318976c FN |
921 | if (annotation_level > 1 && instream == stdin) |
922 | { | |
923 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
924 | + strlen (annotation_suffix) + 40); | |
925 | if (prompt_arg == NULL) | |
926 | local_prompt[0] = '\0'; | |
927 | else | |
928 | strcpy (local_prompt, prompt_arg); | |
929 | strcat (local_prompt, "\n\032\032"); | |
930 | strcat (local_prompt, annotation_suffix); | |
931 | strcat (local_prompt, "\n"); | |
932 | } | |
9e0b60a8 | 933 | |
d318976c | 934 | if (linebuffer == 0) |
9e0b60a8 | 935 | { |
d318976c FN |
936 | linelength = 80; |
937 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 938 | } |
9e0b60a8 | 939 | |
d318976c | 940 | p = linebuffer; |
9e0b60a8 | 941 | |
d318976c FN |
942 | /* Control-C quits instantly if typed while in this loop |
943 | since it should not wait until the user types a newline. */ | |
944 | immediate_quit++; | |
945 | #ifdef STOP_SIGNAL | |
946 | if (job_control) | |
362646f5 | 947 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
948 | #endif |
949 | ||
950 | while (1) | |
9e0b60a8 | 951 | { |
371d5dec MS |
952 | /* Make sure that all output has been output. Some machines may |
953 | let you get away with leaving out some of the gdb_flush, but | |
954 | not all. */ | |
d318976c FN |
955 | wrap_here (""); |
956 | gdb_flush (gdb_stdout); | |
957 | gdb_flush (gdb_stderr); | |
958 | ||
959 | if (source_file_name != NULL) | |
637537d0 | 960 | ++source_line_number; |
d318976c FN |
961 | |
962 | if (annotation_level > 1 && instream == stdin) | |
963 | { | |
306d9ac5 DC |
964 | puts_unfiltered ("\n\032\032pre-"); |
965 | puts_unfiltered (annotation_suffix); | |
966 | puts_unfiltered ("\n"); | |
d318976c FN |
967 | } |
968 | ||
969 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 970 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 971 | { |
9a4105ab | 972 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 973 | } |
698ba934 | 974 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 975 | { |
b4f5539f | 976 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 977 | } |
9e0b60a8 | 978 | else |
d318976c FN |
979 | { |
980 | rl = gdb_readline (local_prompt); | |
981 | } | |
9e0b60a8 | 982 | |
d318976c FN |
983 | if (annotation_level > 1 && instream == stdin) |
984 | { | |
306d9ac5 DC |
985 | puts_unfiltered ("\n\032\032post-"); |
986 | puts_unfiltered (annotation_suffix); | |
987 | puts_unfiltered ("\n"); | |
d318976c | 988 | } |
9e0b60a8 | 989 | |
d318976c | 990 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 991 | { |
d318976c FN |
992 | got_eof = 1; |
993 | break; | |
9e0b60a8 | 994 | } |
d318976c FN |
995 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
996 | { | |
997 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
998 | nline = (char *) xrealloc (linebuffer, linelength); | |
999 | p += nline - linebuffer; | |
1000 | linebuffer = nline; | |
1001 | } | |
1002 | p1 = rl; | |
1003 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 1004 | if this was just a newline). */ |
d318976c FN |
1005 | while (*p1) |
1006 | *p++ = *p1++; | |
9e0b60a8 | 1007 | |
b8c9b27d | 1008 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1009 | |
d318976c FN |
1010 | if (p == linebuffer || *(p - 1) != '\\') |
1011 | break; | |
9e0b60a8 | 1012 | |
d318976c FN |
1013 | p--; /* Put on top of '\'. */ |
1014 | local_prompt = (char *) 0; | |
1015 | } | |
9e0b60a8 | 1016 | |
d318976c FN |
1017 | #ifdef STOP_SIGNAL |
1018 | if (job_control) | |
1019 | signal (STOP_SIGNAL, SIG_DFL); | |
1020 | #endif | |
1021 | immediate_quit--; | |
9e0b60a8 | 1022 | |
d318976c FN |
1023 | if (got_eof) |
1024 | return NULL; | |
9e0b60a8 | 1025 | |
d318976c FN |
1026 | #define SERVER_COMMAND_LENGTH 7 |
1027 | server_command = | |
1028 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1029 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1030 | if (server_command) |
9e0b60a8 | 1031 | { |
d318976c FN |
1032 | /* Note that we don't set `line'. Between this and the check in |
1033 | dont_repeat, this insures that repeating will still do the | |
1034 | right thing. */ | |
1035 | *p = '\0'; | |
1036 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1037 | } |
9e0b60a8 | 1038 | |
d318976c FN |
1039 | /* Do history expansion if that is wished. */ |
1040 | if (history_expansion_p && instream == stdin | |
1041 | && ISATTY (instream)) | |
1042 | { | |
1043 | char *history_value; | |
1044 | int expanded; | |
9e0b60a8 | 1045 | |
d318976c FN |
1046 | *p = '\0'; /* Insert null now. */ |
1047 | expanded = history_expand (linebuffer, &history_value); | |
1048 | if (expanded) | |
1049 | { | |
1050 | /* Print the changes. */ | |
1051 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1052 | |
d318976c FN |
1053 | /* If there was an error, call this function again. */ |
1054 | if (expanded < 0) | |
1055 | { | |
b8c9b27d | 1056 | xfree (history_value); |
3e43a32a MS |
1057 | return command_line_input (prompt_arg, repeat, |
1058 | annotation_suffix); | |
d318976c FN |
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 | |
371d5dec MS |
1071 | /* If we just got an empty line, and that is supposed to repeat the |
1072 | previous command, return the value in the global buffer. */ | |
d318976c | 1073 | if (repeat && p == linebuffer) |
dc7eb48e | 1074 | return saved_command_line; |
d318976c FN |
1075 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1076 | if (repeat && !*p1) | |
dc7eb48e | 1077 | return saved_command_line; |
9e0b60a8 | 1078 | |
d318976c | 1079 | *p = 0; |
9e0b60a8 | 1080 | |
d318976c FN |
1081 | /* Add line to history if appropriate. */ |
1082 | if (instream == stdin | |
1083 | && ISATTY (stdin) && *linebuffer) | |
1084 | add_history (linebuffer); | |
9e0b60a8 | 1085 | |
d318976c FN |
1086 | /* Note: lines consisting solely of comments are added to the command |
1087 | history. This is useful when you type a command, and then | |
1088 | realize you don't want to execute it quite yet. You can comment | |
1089 | out the command and then later fetch it from the value history | |
1090 | and remove the '#'. The kill ring is probably better, but some | |
1091 | people are in the habit of commenting things out. */ | |
1092 | if (*p1 == '#') | |
371d5dec | 1093 | *p1 = '\0'; /* Found a comment. */ |
9e0b60a8 | 1094 | |
d318976c FN |
1095 | /* Save into global buffer if appropriate. */ |
1096 | if (repeat) | |
1097 | { | |
dc7eb48e | 1098 | if (linelength > saved_command_line_size) |
d318976c | 1099 | { |
dc7eb48e PA |
1100 | saved_command_line = xrealloc (saved_command_line, linelength); |
1101 | saved_command_line_size = linelength; | |
d318976c | 1102 | } |
dc7eb48e PA |
1103 | strcpy (saved_command_line, linebuffer); |
1104 | return saved_command_line; | |
d318976c | 1105 | } |
9e0b60a8 | 1106 | |
d318976c | 1107 | return linebuffer; |
9e0b60a8 JM |
1108 | } |
1109 | \f | |
371d5dec | 1110 | /* Print the GDB banner. */ |
9e0b60a8 | 1111 | void |
fba45db2 | 1112 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1113 | { |
1114 | /* From GNU coding standards, first line is meant to be easy for a | |
1115 | program to parse, and is just canonical program name and version | |
371d5dec | 1116 | number, which starts after last space. */ |
9e0b60a8 | 1117 | |
c16158bc | 1118 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1119 | |
371d5dec | 1120 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1121 | |
3e43a32a | 1122 | fprintf_filtered (stream, |
67827812 | 1123 | "Copyright (C) 2012 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 | |
371d5dec | 1128 | there is no warranty. */ |
9e0b60a8 JM |
1129 | |
1130 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1131 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1132 | \nThis 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 | 1135 | |
371d5dec | 1136 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1137 | |
1138 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1139 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1140 | { |
3e43a32a MS |
1141 | fprintf_filtered (stream, "--host=%s --target=%s", |
1142 | host_name, target_name); | |
9e0b60a8 JM |
1143 | } |
1144 | else | |
1145 | { | |
1146 | fprintf_filtered (stream, "%s", host_name); | |
1147 | } | |
1148 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1149 | |
1150 | if (REPORT_BUGS_TO[0]) | |
1151 | { | |
1152 | fprintf_filtered (stream, | |
1153 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1154 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1155 | } |
9e0b60a8 | 1156 | } |
9e0b60a8 | 1157 | \f |
95298e72 | 1158 | |
ab821bc6 PA |
1159 | /* The current top level prompt, settable with "set prompt", and/or |
1160 | with the python `gdb.prompt_hook' hook. */ | |
1161 | static char *top_prompt; | |
9e0b60a8 | 1162 | |
ab821bc6 | 1163 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1164 | |
1165 | char * | |
ab821bc6 | 1166 | get_prompt (void) |
95298e72 | 1167 | { |
ab821bc6 | 1168 | return top_prompt; |
95298e72 PM |
1169 | } |
1170 | ||
ab821bc6 | 1171 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1172 | |
1173 | void | |
ab821bc6 | 1174 | set_prompt (const char *s) |
95298e72 | 1175 | { |
ab821bc6 | 1176 | char *p = xstrdup (s); |
95298e72 | 1177 | |
ab821bc6 PA |
1178 | xfree (top_prompt); |
1179 | top_prompt = p; | |
9e0b60a8 | 1180 | } |
9e0b60a8 | 1181 | \f |
c5aa993b | 1182 | |
b0abbc58 | 1183 | struct qt_args |
9e0b60a8 | 1184 | { |
b0abbc58 JJ |
1185 | char *args; |
1186 | int from_tty; | |
1187 | }; | |
9e0b60a8 | 1188 | |
54a012c9 PA |
1189 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1190 | inferior, depending on how we originally gained control of it. */ | |
1191 | ||
1192 | static int | |
1193 | kill_or_detach (struct inferior *inf, void *args) | |
1194 | { | |
1195 | struct qt_args *qt = args; | |
1196 | struct thread_info *thread; | |
1197 | ||
6c95b8df PA |
1198 | if (inf->pid == 0) |
1199 | return 0; | |
1200 | ||
b8fa0bfa PA |
1201 | thread = any_thread_of_process (inf->pid); |
1202 | if (thread != NULL) | |
9e0b60a8 | 1203 | { |
54a012c9 | 1204 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1205 | |
1206 | /* Leave core files alone. */ | |
1207 | if (target_has_execution) | |
1208 | { | |
1209 | if (inf->attach_flag) | |
1210 | target_detach (qt->args, qt->from_tty); | |
1211 | else | |
1212 | target_kill (); | |
1213 | } | |
9e0b60a8 JM |
1214 | } |
1215 | ||
54a012c9 PA |
1216 | return 0; |
1217 | } | |
1218 | ||
b8fa0bfa PA |
1219 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1220 | will do to each inferior on a "quit". ARG points to a struct | |
1221 | ui_out where output is to be collected. */ | |
1222 | ||
1223 | static int | |
1224 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1225 | { | |
1226 | struct ui_file *stb = arg; | |
1227 | ||
6c95b8df PA |
1228 | if (inf->pid == 0) |
1229 | return 0; | |
1230 | ||
b8fa0bfa PA |
1231 | if (inf->attach_flag) |
1232 | fprintf_filtered (stb, | |
1233 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1234 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1235 | else | |
1236 | fprintf_filtered (stb, | |
1237 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1238 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1239 | ||
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | /* If necessary, make the user confirm that we should quit. Return | |
1244 | non-zero if we should quit, zero if we shouldn't. */ | |
1245 | ||
1246 | int | |
1247 | quit_confirm (void) | |
1248 | { | |
1249 | struct ui_file *stb; | |
1250 | struct cleanup *old_chain; | |
1251 | char *str; | |
1252 | int qr; | |
1253 | ||
1254 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1255 | if (!have_live_inferiors ()) | |
1256 | return 1; | |
1257 | ||
1258 | /* Build the query string as a single string. */ | |
1259 | stb = mem_fileopen (); | |
1260 | old_chain = make_cleanup_ui_file_delete (stb); | |
1261 | ||
1262 | /* This is something of a hack. But there's no reliable way to see | |
1263 | if a GUI is running. The `use_windows' variable doesn't cut | |
1264 | it. */ | |
1265 | if (deprecated_init_ui_hook) | |
1266 | fprintf_filtered (stb, _("A debugging session is active.\n" | |
1267 | "Do you still want to close the debugger?")); | |
1268 | else | |
1269 | { | |
1270 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); | |
1271 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1272 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
1273 | } | |
1274 | ||
1275 | str = ui_file_xstrdup (stb, NULL); | |
1276 | make_cleanup (xfree, str); | |
1277 | ||
1278 | qr = query ("%s", str); | |
1279 | do_cleanups (old_chain); | |
1280 | return qr; | |
1281 | } | |
1282 | ||
54a012c9 PA |
1283 | /* Helper routine for quit_force that requires error handling. */ |
1284 | ||
1285 | static int | |
1286 | quit_target (void *arg) | |
1287 | { | |
1288 | struct qt_args *qt = (struct qt_args *)arg; | |
1289 | ||
1290 | /* Kill or detach all inferiors. */ | |
c35b1492 | 1291 | iterate_over_inferiors (kill_or_detach, qt); |
54a012c9 | 1292 | |
aa76d38d PA |
1293 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1294 | them all out. */ | |
1295 | pop_all_targets (1); | |
9e0b60a8 JM |
1296 | |
1297 | /* Save the history information if it is appropriate to do so. */ | |
1298 | if (write_history_p && history_filename) | |
1299 | write_history (history_filename); | |
1300 | ||
6328eb38 TT |
1301 | do_final_cleanups (all_cleanups ()); /* Do any final cleanups before |
1302 | exiting. */ | |
b0abbc58 JJ |
1303 | return 0; |
1304 | } | |
1305 | ||
1306 | /* Quit without asking for confirmation. */ | |
1307 | ||
1308 | void | |
1309 | quit_force (char *args, int from_tty) | |
1310 | { | |
1311 | int exit_code = 0; | |
365c70b1 | 1312 | struct qt_args qt; |
b0abbc58 JJ |
1313 | |
1314 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1315 | value of that expression. */ |
b0abbc58 JJ |
1316 | if (args) |
1317 | { | |
1318 | struct value *val = parse_and_eval (args); | |
1319 | ||
1320 | exit_code = (int) value_as_long (val); | |
1321 | } | |
4b0ad762 AS |
1322 | else if (return_child_result) |
1323 | exit_code = return_child_result_value; | |
b0abbc58 | 1324 | |
365c70b1 JJ |
1325 | qt.args = args; |
1326 | qt.from_tty = from_tty; | |
1327 | ||
b0abbc58 | 1328 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1329 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1330 | "Quitting: ", RETURN_MASK_ALL); |
1331 | ||
9e0b60a8 JM |
1332 | exit (exit_code); |
1333 | } | |
1334 | ||
698ba934 DJ |
1335 | /* Returns whether GDB is running on a terminal and input is |
1336 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1337 | |
1338 | int | |
fba45db2 | 1339 | input_from_terminal_p (void) |
9e0b60a8 | 1340 | { |
c63a1f86 JK |
1341 | if (batch_flag) |
1342 | return 0; | |
1343 | ||
698ba934 DJ |
1344 | if (gdb_has_a_terminal () && instream == stdin) |
1345 | return 1; | |
1346 | ||
1347 | /* If INSTREAM is unset, and we are not in a user command, we | |
1348 | must be in Insight. That's like having a terminal, for our | |
1349 | purposes. */ | |
1350 | if (instream == NULL && !in_user_command) | |
1351 | return 1; | |
1352 | ||
1353 | return 0; | |
9e0b60a8 JM |
1354 | } |
1355 | \f | |
9e0b60a8 | 1356 | static void |
fba45db2 | 1357 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1358 | { |
dc7eb48e PA |
1359 | /* Can't call dont_repeat here because we're not necessarily reading |
1360 | from stdin. */ | |
1361 | *saved_command_line = 0; | |
9e0b60a8 JM |
1362 | } |
1363 | \f | |
1364 | /* Functions to manipulate command line editing control variables. */ | |
1365 | ||
1366 | /* Number of commands to print in each call to show_commands. */ | |
1367 | #define Hist_print 10 | |
d318976c | 1368 | void |
fba45db2 | 1369 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1370 | { |
1371 | /* Index for history commands. Relative to history_base. */ | |
1372 | int offset; | |
1373 | ||
1374 | /* Number of the history entry which we are planning to display next. | |
1375 | Relative to history_base. */ | |
1376 | static int num = 0; | |
1377 | ||
1378 | /* The first command in the history which doesn't exist (i.e. one more | |
1379 | than the number of the last command). Relative to history_base. */ | |
1380 | int hist_len; | |
1381 | ||
9e0b60a8 JM |
1382 | /* Print out some of the commands from the command history. */ |
1383 | /* First determine the length of the history list. */ | |
1384 | hist_len = history_size; | |
1385 | for (offset = 0; offset < history_size; offset++) | |
1386 | { | |
1387 | if (!history_get (history_base + offset)) | |
1388 | { | |
1389 | hist_len = offset; | |
1390 | break; | |
1391 | } | |
1392 | } | |
1393 | ||
1394 | if (args) | |
1395 | { | |
1396 | if (args[0] == '+' && args[1] == '\0') | |
1397 | /* "info editing +" should print from the stored position. */ | |
1398 | ; | |
1399 | else | |
1400 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1401 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1402 | } |
1403 | /* "show commands" means print the last Hist_print commands. */ | |
1404 | else | |
1405 | { | |
1406 | num = hist_len - Hist_print; | |
1407 | } | |
1408 | ||
1409 | if (num < 0) | |
1410 | num = 0; | |
1411 | ||
1412 | /* If there are at least Hist_print commands, we want to display the last | |
1413 | Hist_print rather than, say, the last 6. */ | |
1414 | if (hist_len - num < Hist_print) | |
1415 | { | |
1416 | num = hist_len - Hist_print; | |
1417 | if (num < 0) | |
1418 | num = 0; | |
1419 | } | |
1420 | ||
1421 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1422 | { | |
1423 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1424 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1425 | } |
1426 | ||
1427 | /* The next command we want to display is the next one that we haven't | |
1428 | displayed yet. */ | |
1429 | num += Hist_print; | |
1430 | ||
1431 | /* If the user repeats this command with return, it should do what | |
1432 | "show commands +" does. This is unnecessary if arg is null, | |
1433 | because "show commands +" is not useful after "show commands". */ | |
1434 | if (from_tty && args) | |
1435 | { | |
1436 | args[0] = '+'; | |
1437 | args[1] = '\0'; | |
1438 | } | |
1439 | } | |
1440 | ||
1441 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1442 | static void |
fba45db2 | 1443 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1444 | { |
1445 | if (history_size == INT_MAX) | |
1446 | unstifle_history (); | |
1447 | else if (history_size >= 0) | |
1448 | stifle_history (history_size); | |
1449 | else | |
1450 | { | |
1451 | history_size = INT_MAX; | |
8a3fe4f8 | 1452 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1453 | } |
1454 | } | |
1455 | ||
d318976c | 1456 | void |
fba45db2 | 1457 | set_history (char *args, int from_tty) |
9e0b60a8 | 1458 | { |
3e43a32a MS |
1459 | printf_unfiltered (_("\"set history\" must be followed " |
1460 | "by the name of a history subcommand.\n")); | |
9e0b60a8 JM |
1461 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1462 | } | |
1463 | ||
d318976c | 1464 | void |
fba45db2 | 1465 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1466 | { |
1467 | cmd_show_list (showhistlist, from_tty, ""); | |
1468 | } | |
1469 | ||
371d5dec | 1470 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1471 | |
1472 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1473 | void |
fba45db2 | 1474 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1475 | { |
1476 | char *cmdname = "verbose"; | |
1477 | struct cmd_list_element *showcmd; | |
1478 | ||
1479 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1480 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1481 | |
1482 | if (info_verbose) | |
1483 | { | |
1484 | c->doc = "Set verbose printing of informational messages."; | |
1485 | showcmd->doc = "Show verbose printing of informational messages."; | |
1486 | } | |
1487 | else | |
1488 | { | |
1489 | c->doc = "Set verbosity."; | |
1490 | showcmd->doc = "Show verbosity."; | |
1491 | } | |
1492 | } | |
1493 | ||
9e0b60a8 | 1494 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1495 | have been read so that the user can change the history file via his |
1496 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1497 | overrides all of this. */ | |
9e0b60a8 JM |
1498 | |
1499 | void | |
fba45db2 | 1500 | init_history (void) |
9e0b60a8 JM |
1501 | { |
1502 | char *tmpenv; | |
1503 | ||
1504 | tmpenv = getenv ("HISTSIZE"); | |
1505 | if (tmpenv) | |
1506 | history_size = atoi (tmpenv); | |
1507 | else if (!history_size) | |
1508 | history_size = 256; | |
1509 | ||
1510 | stifle_history (history_size); | |
1511 | ||
1512 | tmpenv = getenv ("GDBHISTFILE"); | |
1513 | if (tmpenv) | |
1b36a34b | 1514 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1515 | else if (!history_filename) |
1516 | { | |
1517 | /* We include the current directory so that if the user changes | |
1518 | directories the file written will be the same as the one | |
1519 | that was read. */ | |
a0b3c4fd | 1520 | #ifdef __MSDOS__ |
eb2f494a | 1521 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1522 | history_filename = concat (current_directory, "/_gdb_history", |
1523 | (char *)NULL); | |
a0b3c4fd | 1524 | #else |
1754f103 MK |
1525 | history_filename = concat (current_directory, "/.gdb_history", |
1526 | (char *)NULL); | |
a0b3c4fd | 1527 | #endif |
c5aa993b | 1528 | } |
9e0b60a8 JM |
1529 | read_history (history_filename); |
1530 | } | |
1531 | ||
920d2a44 | 1532 | static void |
ab821bc6 PA |
1533 | show_prompt (struct ui_file *file, int from_tty, |
1534 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1535 | { |
1536 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1537 | } | |
1538 | ||
1539 | static void | |
1540 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1541 | struct cmd_list_element *c, const char *value) | |
1542 | { | |
3e43a32a MS |
1543 | fprintf_filtered (file, _("Editing of command lines as " |
1544 | "they are typed is %s.\n"), | |
920d2a44 AC |
1545 | value); |
1546 | } | |
1547 | ||
1548 | static void | |
1549 | show_annotation_level (struct ui_file *file, int from_tty, | |
1550 | struct cmd_list_element *c, const char *value) | |
1551 | { | |
1552 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1553 | } | |
1554 | ||
1555 | static void | |
1556 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1557 | struct cmd_list_element *c, const char *value) | |
1558 | { | |
3e43a32a MS |
1559 | fprintf_filtered (file, _("Notification of completion for " |
1560 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1561 | value); |
1562 | } | |
6dea1fbd JK |
1563 | |
1564 | /* "set" command for the gdb_datadir configuration variable. */ | |
1565 | ||
1566 | static void | |
1567 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1568 | { | |
1569 | observer_notify_gdb_datadir_changed (); | |
1570 | } | |
1571 | ||
9e0b60a8 | 1572 | static void |
fba45db2 | 1573 | init_main (void) |
9e0b60a8 | 1574 | { |
ab821bc6 PA |
1575 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1576 | the DEFAULT_PROMPT is. */ | |
1577 | set_prompt (DEFAULT_PROMPT); | |
1578 | ||
362646f5 AC |
1579 | /* Set things up for annotation_level > 1, if the user ever decides |
1580 | to use it. */ | |
1581 | async_annotation_suffix = "prompt"; | |
362646f5 | 1582 | |
9e0b60a8 JM |
1583 | /* Set the important stuff up for command editing. */ |
1584 | command_editing_p = 1; | |
9e0b60a8 JM |
1585 | history_expansion_p = 0; |
1586 | write_history_p = 0; | |
1587 | ||
1588 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1589 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1590 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1591 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1592 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1593 | rl_readline_name = "gdb"; |
7cb3ec5e | 1594 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1595 | |
467d8519 TT |
1596 | /* The name for this defun comes from Bash, where it originated. |
1597 | 15 is Control-o, the same binding this function has in Bash. */ | |
1598 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1599 | ||
4d28ad1e | 1600 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 1601 | &top_prompt, |
3e43a32a MS |
1602 | _("Set gdb's prompt"), |
1603 | _("Show gdb's prompt"), | |
ab821bc6 PA |
1604 | NULL, NULL, |
1605 | show_prompt, | |
4d28ad1e | 1606 | &setlist, &showlist); |
9e0b60a8 | 1607 | |
1bedd215 | 1608 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1609 | Don't repeat this command.\nPrimarily \ |
1610 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1611 | hitting return.")); |
9e0b60a8 | 1612 | |
5bf193a2 AC |
1613 | add_setshow_boolean_cmd ("editing", class_support, |
1614 | &async_command_editing_p, _("\ | |
1615 | Set editing of command lines as they are typed."), _("\ | |
1616 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1617 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1618 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1619 | EMACS-like or VI-like commands like control-P or ESC."), |
1620 | set_async_editing_command, | |
920d2a44 | 1621 | show_async_command_editing_p, |
5bf193a2 AC |
1622 | &setlist, &showlist); |
1623 | ||
1624 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1625 | Set saving of the history record on exit."), _("\ | |
1626 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1627 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1628 | Without an argument, saving is enabled."), |
1629 | NULL, | |
920d2a44 | 1630 | show_write_history_p, |
5bf193a2 | 1631 | &sethistlist, &showhistlist); |
9e0b60a8 | 1632 | |
4d28ad1e AC |
1633 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1634 | Set the size of the command history,"), _("\ | |
1635 | Show the size of the command history,"), _("\ | |
1636 | ie. the number of previous commands to keep a record of."), | |
1637 | set_history_size_command, | |
920d2a44 | 1638 | show_history_size, |
4d28ad1e AC |
1639 | &sethistlist, &showhistlist); |
1640 | ||
1641 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1642 | Set the filename in which to record the command history"), _("\ | |
1643 | Show the filename in which to record the command history"), _("\ | |
1644 | (the list of previous commands of which a record is kept)."), | |
1645 | NULL, | |
920d2a44 | 1646 | show_history_filename, |
4d28ad1e | 1647 | &sethistlist, &showhistlist); |
9e0b60a8 | 1648 | |
e360902b | 1649 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
1650 | Set whether to confirm potentially dangerous operations."), _("\ |
1651 | Show whether to confirm potentially dangerous operations."), NULL, | |
1652 | NULL, | |
e360902b | 1653 | show_confirm, |
5bf193a2 | 1654 | &setlist, &showlist); |
9e0b60a8 | 1655 | |
85c07804 AC |
1656 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1657 | Set annotation_level."), _("\ | |
1658 | Show annotation_level."), _("\ | |
9e0b60a8 | 1659 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 1660 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 1661 | NULL, |
920d2a44 | 1662 | show_annotation_level, |
85c07804 | 1663 | &setlist, &showlist); |
362646f5 | 1664 | |
5bf193a2 AC |
1665 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1666 | &exec_done_display_p, _("\ | |
1667 | Set notification of completion for asynchronous execution commands."), _("\ | |
1668 | Show notification of completion for asynchronous execution commands."), _("\ | |
1669 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1670 | NULL, | |
920d2a44 | 1671 | show_exec_done_display_p, |
5bf193a2 | 1672 | &setlist, &showlist); |
b14b1491 TT |
1673 | |
1674 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1675 | &gdb_datadir, _("Set GDB's data directory."), | |
1676 | _("Show GDB's data directory."), | |
1677 | _("\ | |
1678 | When set, GDB uses the specified path to search for data files."), | |
6dea1fbd | 1679 | set_gdb_datadir, NULL, |
b14b1491 TT |
1680 | &setlist, |
1681 | &showlist); | |
9e0b60a8 | 1682 | } |
64cdedad EZ |
1683 | |
1684 | void | |
1685 | gdb_init (char *argv0) | |
1686 | { | |
1687 | if (pre_init_ui_hook) | |
1688 | pre_init_ui_hook (); | |
1689 | ||
371d5dec | 1690 | /* Run the init function of each source file. */ |
64cdedad | 1691 | |
64cdedad EZ |
1692 | #ifdef __MSDOS__ |
1693 | /* Make sure we return to the original directory upon exit, come | |
1694 | what may, since the OS doesn't do that for us. */ | |
1695 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1696 | #endif | |
1697 | ||
371d5dec MS |
1698 | init_cmd_lists (); /* This needs to be done first. */ |
1699 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1700 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1701 | |
1702 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1703 | initialize_all_files (); |
9dea9163 | 1704 | |
6c95b8df PA |
1705 | /* This creates the current_program_space. Do this after all the |
1706 | _initialize_foo routines have had a chance to install their | |
1707 | per-sspace data keys. Also do this before | |
1708 | initialize_current_architecture is called, because it accesses | |
1709 | exec_bfd of the current program space. */ | |
1710 | initialize_progspace (); | |
1711 | initialize_inferiors (); | |
64cdedad EZ |
1712 | initialize_current_architecture (); |
1713 | init_cli_cmds(); | |
371d5dec | 1714 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1715 | |
0ea3f30e DJ |
1716 | initialize_stdin_serial (); |
1717 | ||
362646f5 | 1718 | async_init_signals (); |
64cdedad | 1719 | |
371d5dec MS |
1720 | /* We need a default language for parsing expressions, so simple |
1721 | things like "set width 0" won't fail if no language is explicitly | |
1722 | set in a config file or implicitly set by reading an executable | |
1723 | during startup. */ | |
64cdedad | 1724 | set_language (language_c); |
371d5dec | 1725 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1726 | |
c378eb4e | 1727 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1728 | and it wants GDB to revert to the CLI, it should clear |
1729 | deprecated_init_ui_hook. */ | |
1730 | if (deprecated_init_ui_hook) | |
1731 | deprecated_init_ui_hook (argv0); | |
9dea9163 DE |
1732 | |
1733 | #ifdef HAVE_PYTHON | |
371d5dec MS |
1734 | /* Python initialization can require various commands to be |
1735 | installed. For example "info pretty-printer" needs the "info" | |
1736 | prefix to be installed. Keep things simple and just do final | |
1737 | python initialization here. */ | |
9dea9163 DE |
1738 | finish_python_initialization (); |
1739 | #endif | |
64cdedad | 1740 | } |