Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 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" | |
210661e7 EZ |
22 | #include "cli/cli-cmds.h" |
23 | #include "cli/cli-script.h" | |
24 | #include "cli/cli-setshow.h" | |
18a642a1 | 25 | #include "cli/cli-decode.h" |
c906108c SS |
26 | #include "symtab.h" |
27 | #include "inferior.h" | |
45741a9c | 28 | #include "infrun.h" |
042be3a9 | 29 | #include <signal.h> |
c906108c | 30 | #include "target.h" |
68c765e2 | 31 | #include "target-dcache.h" |
c906108c SS |
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. */ |
15652511 | 38 | #include "job-control.h" |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
d4f3574e | 42 | #include "version.h" |
210661e7 | 43 | #include "serial.h" |
d16aafd8 | 44 | #include "doublest.h" |
f17517ea | 45 | #include "main.h" |
2e03ee74 | 46 | #include "event-loop.h" |
8ea051c5 | 47 | #include "gdbthread.h" |
6dddc817 | 48 | #include "extension.h" |
b4a14fd0 | 49 | #include "interps.h" |
6dea1fbd | 50 | #include "observer.h" |
bd712aed | 51 | #include "maint.h" |
97c85fc6 | 52 | #include "filenames.h" |
06096720 | 53 | #include "frame.h" |
7a3bde34 | 54 | #include "buffer.h" |
3212b858 | 55 | #include "gdb_select.h" |
c906108c | 56 | |
371d5dec | 57 | /* readline include files. */ |
dbda9972 AC |
58 | #include "readline/readline.h" |
59 | #include "readline/history.h" | |
c906108c SS |
60 | |
61 | /* readline defines this. */ | |
62 | #undef savestring | |
63 | ||
64 | #include <sys/types.h> | |
c906108c | 65 | |
c2c6d25f | 66 | #include "event-top.h" |
53ce3c39 | 67 | #include <sys/stat.h> |
c906108c | 68 | #include <ctype.h> |
8b93c638 JM |
69 | #include "ui-out.h" |
70 | #include "cli-out.h" | |
2f9d54cf | 71 | #include "tracepoint.h" |
93d6eb10 | 72 | #include "inf-loop.h" |
c906108c | 73 | |
18206ca3 PP |
74 | #if defined(TUI) |
75 | # include "tui/tui.h" | |
76 | #endif | |
77 | ||
60eb5395 PA |
78 | #ifndef O_NOCTTY |
79 | # define O_NOCTTY 0 | |
80 | #endif | |
81 | ||
ca7b0bbc TT |
82 | extern void initialize_all_files (void); |
83 | ||
95298e72 PM |
84 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
85 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
86 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
87 | ||
371d5dec | 88 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
89 | |
90 | #ifndef DEFAULT_PROMPT | |
91 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
92 | #endif |
93 | ||
79aa2fe8 PA |
94 | /* Generate a function that exports a pointer to a field of the |
95 | current UI. */ | |
96 | ||
97 | #define gen_ret_current_ui_field_ptr(type, name) \ | |
98 | type * \ | |
99 | current_ui_## name ## _ptr (void) \ | |
100 | { \ | |
101 | return ¤t_ui->m_ ## name; \ | |
102 | } | |
103 | ||
104 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout) | |
105 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin) | |
106 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr) | |
107 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog) | |
b6dcde57 | 108 | gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout) |
79aa2fe8 | 109 | |
e655c1a2 | 110 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 111 | |
e655c1a2 | 112 | const char gdbinit[] = GDBINIT; |
c906108c SS |
113 | |
114 | int inhibit_gdbinit = 0; | |
115 | ||
c906108c SS |
116 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
117 | ||
050a2e1d PA |
118 | /* Flag for whether we want to confirm potentially dangerous |
119 | operations. Default is yes. */ | |
120 | ||
e360902b | 121 | int confirm = 1; |
c906108c | 122 | |
920d2a44 | 123 | static void |
e360902b | 124 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
125 | struct cmd_list_element *c, const char *value) |
126 | { | |
3e43a32a MS |
127 | fprintf_filtered (file, _("Whether to confirm potentially " |
128 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
129 | value); |
130 | } | |
c906108c | 131 | |
c906108c SS |
132 | /* Current working directory. */ |
133 | ||
134 | char *current_directory; | |
135 | ||
2669cade PA |
136 | /* The last command line executed on the console. Used for command |
137 | repetitions. */ | |
dc7eb48e | 138 | char *saved_command_line; |
c906108c SS |
139 | |
140 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 141 | affects things like recording into the command history, commands |
c906108c SS |
142 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
143 | whatever) can issue its own commands and also send along commands | |
144 | from the user, and have the user not notice that the user interface | |
145 | is issuing commands too. */ | |
146 | int server_command; | |
147 | ||
371d5dec | 148 | /* Timeout limit for response from target. */ |
c906108c | 149 | |
ce808e91 AC |
150 | /* The default value has been changed many times over the years. It |
151 | was originally 5 seconds. But that was thought to be a long time | |
152 | to sit and wait, so it was changed to 2 seconds. That was thought | |
153 | to be plenty unless the connection was going through some terminal | |
154 | server or multiplexer or other form of hairy serial connection. | |
155 | ||
156 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
157 | it began being used in other remote-* targets. It appears that the | |
158 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 159 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
160 | |
161 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
162 | 20 seconds is far worse. This demonstrates the difficulty of using | |
163 | a single variable for all protocol timeouts. | |
164 | ||
165 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 166 | back to 2 seconds in 1999. */ |
ce808e91 AC |
167 | |
168 | int remote_timeout = 2; | |
c906108c SS |
169 | |
170 | /* Non-zero tells remote* modules to output debugging info. */ | |
171 | ||
172 | int remote_debug = 0; | |
173 | ||
6dd77b81 RH |
174 | /* Sbrk location on entry to main. Used for statistics only. */ |
175 | #ifdef HAVE_SBRK | |
176 | char *lim_at_start; | |
177 | #endif | |
178 | ||
c906108c SS |
179 | /* Hooks for alternate command interfaces. */ |
180 | ||
371d5dec MS |
181 | /* This hook is called from within gdb's many mini-event loops which |
182 | could steal control from a real user interface's event loop. It | |
183 | returns non-zero if the user is requesting a detach, zero | |
184 | otherwise. */ | |
7a292a7a | 185 | |
98bbd631 | 186 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 187 | |
c906108c | 188 | |
c906108c SS |
189 | /* Called from print_frame_info to list the line we stopped in. */ |
190 | ||
371d5dec MS |
191 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
192 | int line, | |
193 | int stopline, | |
194 | int noerror); | |
c906108c SS |
195 | /* Replaces most of query. */ |
196 | ||
9a4105ab | 197 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
198 | |
199 | /* Replaces most of warning. */ | |
200 | ||
9a4105ab | 201 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 202 | |
9a4105ab AC |
203 | /* These three functions support getting lines of text from the user. |
204 | They are used in sequence. First deprecated_readline_begin_hook is | |
205 | called with a text string that might be (for example) a message for | |
206 | the user to type in a sequence of commands to be executed at a | |
207 | breakpoint. If this function calls back to a GUI, it might take | |
208 | this opportunity to pop up a text interaction window with this | |
209 | message. Next, deprecated_readline_hook is called with a prompt | |
210 | that is emitted prior to collecting the user input. It can be | |
211 | called multiple times. Finally, deprecated_readline_end_hook is | |
212 | called to notify the GUI that we are done with the interaction | |
213 | window and it can close it. */ | |
c906108c | 214 | |
a121b7c1 | 215 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 216 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 217 | void (*deprecated_readline_end_hook) (void); |
c906108c | 218 | |
6426a772 | 219 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 220 | to or detached from an already running process. */ |
6426a772 | 221 | |
9a4105ab AC |
222 | void (*deprecated_attach_hook) (void); |
223 | void (*deprecated_detach_hook) (void); | |
6426a772 | 224 | |
371d5dec MS |
225 | /* Called during long calculations to allow GUI to repair window |
226 | damage, and to check for stop buttons, etc... */ | |
c906108c | 227 | |
9a4105ab | 228 | void (*deprecated_interactive_hook) (void); |
c906108c | 229 | |
371d5dec MS |
230 | /* Called when going to wait for the target. Usually allows the GUI |
231 | to run while waiting for target events. */ | |
c906108c | 232 | |
9a4105ab | 233 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
234 | struct target_waitstatus *status, |
235 | int options); | |
c906108c | 236 | |
371d5dec MS |
237 | /* Used by UI as a wrapper around command execution. May do various |
238 | things like enabling/disabling buttons, etc... */ | |
c906108c | 239 | |
371d5dec MS |
240 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
241 | char *cmd, int from_tty); | |
c906108c SS |
242 | |
243 | /* Called when the current thread changes. Argument is thread id. */ | |
244 | ||
9a4105ab | 245 | void (*deprecated_context_hook) (int id); |
c906108c | 246 | |
98d9f24e PA |
247 | /* The highest UI number ever assigned. */ |
248 | static int highest_ui_num; | |
249 | ||
250 | /* See top.h. */ | |
251 | ||
895b8f30 TT |
252 | ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_) |
253 | : next (nullptr), | |
254 | num (++highest_ui_num), | |
255 | call_readline (nullptr), | |
256 | input_handler (nullptr), | |
257 | command_editing (0), | |
258 | interp_info (nullptr), | |
259 | async (0), | |
260 | secondary_prompt_depth (0), | |
261 | stdin_stream (instream_), | |
262 | instream (instream_), | |
263 | outstream (outstream_), | |
264 | errstream (errstream_), | |
265 | input_fd (fileno (instream)), | |
266 | input_interactive_p (ISATTY (instream)), | |
267 | prompt_state (PROMPT_NEEDED), | |
268 | m_gdb_stdout (new stdio_file (outstream)), | |
269 | m_gdb_stdin (new stdio_file (instream)), | |
270 | m_gdb_stderr (new stderr_file (errstream)), | |
271 | m_gdb_stdlog (m_gdb_stderr), | |
272 | m_current_uiout (nullptr) | |
98d9f24e | 273 | { |
895b8f30 | 274 | buffer_init (&line_buffer); |
98d9f24e PA |
275 | |
276 | if (ui_list == NULL) | |
895b8f30 | 277 | ui_list = this; |
98d9f24e PA |
278 | else |
279 | { | |
280 | struct ui *last; | |
281 | ||
282 | for (last = ui_list; last->next != NULL; last = last->next) | |
283 | ; | |
895b8f30 | 284 | last->next = this; |
98d9f24e | 285 | } |
07169ff7 PA |
286 | } |
287 | ||
895b8f30 | 288 | ui::~ui () |
07169ff7 PA |
289 | { |
290 | struct ui *ui, *uiprev; | |
291 | ||
292 | uiprev = NULL; | |
293 | ||
294 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
895b8f30 | 295 | if (ui == this) |
07169ff7 PA |
296 | break; |
297 | ||
298 | gdb_assert (ui != NULL); | |
299 | ||
300 | if (uiprev != NULL) | |
895b8f30 | 301 | uiprev->next = next; |
07169ff7 | 302 | else |
895b8f30 | 303 | ui_list = next; |
07169ff7 | 304 | |
895b8f30 TT |
305 | delete m_gdb_stdin; |
306 | delete m_gdb_stdout; | |
307 | delete m_gdb_stderr; | |
8194e927 SM |
308 | } |
309 | ||
60eb5395 PA |
310 | /* Open file named NAME for read/write, making sure not to make it the |
311 | controlling terminal. */ | |
312 | ||
6e7bc05c | 313 | static gdb_file_up |
60eb5395 PA |
314 | open_terminal_stream (const char *name) |
315 | { | |
316 | int fd; | |
317 | ||
6e7bc05c | 318 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
319 | if (fd < 0) |
320 | perror_with_name (_("opening terminal failed")); | |
321 | ||
6e7bc05c | 322 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
323 | } |
324 | ||
325 | /* Implementation of the "new-ui" command. */ | |
326 | ||
327 | static void | |
32faf971 | 328 | new_ui_command (const char *args, int from_tty) |
60eb5395 | 329 | { |
60eb5395 | 330 | struct interp *interp; |
6e7bc05c | 331 | gdb_file_up stream[3]; |
60eb5395 PA |
332 | int i; |
333 | int res; | |
334 | int argc; | |
60eb5395 PA |
335 | const char *interpreter_name; |
336 | const char *tty_name; | |
60eb5395 PA |
337 | |
338 | dont_repeat (); | |
339 | ||
773a1edc TT |
340 | gdb_argv argv (args); |
341 | argc = argv.count (); | |
60eb5395 PA |
342 | |
343 | if (argc < 2) | |
344 | error (_("usage: new-ui <interpreter> <tty>")); | |
345 | ||
346 | interpreter_name = argv[0]; | |
347 | tty_name = argv[1]; | |
348 | ||
4b6749b9 TT |
349 | { |
350 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 351 | |
4b6749b9 TT |
352 | /* Open specified terminal, once for each of |
353 | stdin/stdout/stderr. */ | |
354 | for (i = 0; i < 3; i++) | |
6e7bc05c | 355 | stream[i] = open_terminal_stream (tty_name); |
60eb5395 | 356 | |
895b8f30 TT |
357 | std::unique_ptr<ui> ui |
358 | (new struct ui (stream[0].get (), stream[1].get (), stream[2].get ())); | |
60eb5395 | 359 | |
4b6749b9 | 360 | ui->async = 1; |
60eb5395 | 361 | |
895b8f30 | 362 | current_ui = ui.get (); |
60eb5395 | 363 | |
4b6749b9 | 364 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 365 | |
4b6749b9 | 366 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 367 | |
6e7bc05c TT |
368 | /* Make sure the files are not closed. */ |
369 | stream[0].release (); | |
370 | stream[1].release (); | |
371 | stream[2].release (); | |
372 | ||
895b8f30 | 373 | ui.release (); |
4b6749b9 | 374 | } |
60eb5395 PA |
375 | |
376 | printf_unfiltered ("New UI allocated\n"); | |
377 | } | |
378 | ||
c906108c SS |
379 | /* Handler for SIGHUP. */ |
380 | ||
381 | #ifdef SIGHUP | |
392a587b | 382 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 383 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 384 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
385 | /* static */ void |
386 | quit_cover (void) | |
c906108c | 387 | { |
e360902b PA |
388 | /* Stop asking user for confirmation --- we're exiting. This |
389 | prevents asking the user dumb questions. */ | |
390 | confirm = 0; | |
c5aa993b | 391 | quit_command ((char *) 0, 0); |
c906108c SS |
392 | } |
393 | #endif /* defined SIGHUP */ | |
394 | \f | |
7a9dd1b2 | 395 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 396 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 397 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 398 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 399 | /* static */ int source_line_number; |
c906108c SS |
400 | |
401 | /* Name of the file we are sourcing. */ | |
392a587b | 402 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 403 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 404 | event-top.c into this file, top.c. */ |
05159abe | 405 | /* static */ const char *source_file_name; |
c906108c | 406 | |
c906108c SS |
407 | /* Read commands from STREAM. */ |
408 | void | |
fba45db2 | 409 | read_command_file (FILE *stream) |
c906108c | 410 | { |
f38d3ad1 | 411 | struct ui *ui = current_ui; |
c906108c | 412 | |
3c9ebddd TT |
413 | scoped_restore save_instream |
414 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
415 | |
416 | /* Read commands from `instream' and execute them until end of file | |
417 | or error reading instream. */ | |
418 | ||
f38d3ad1 | 419 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
420 | { |
421 | char *command; | |
422 | ||
423 | /* Get a command-line. This calls the readline package. */ | |
424 | command = command_line_input (NULL, 0, NULL); | |
425 | if (command == NULL) | |
426 | break; | |
427 | command_handler (command); | |
428 | } | |
c906108c SS |
429 | } |
430 | \f | |
507f3c78 | 431 | void (*pre_init_ui_hook) (void); |
c906108c | 432 | |
e41a3b1a | 433 | #ifdef __MSDOS__ |
70976b65 | 434 | static void |
e41a3b1a AC |
435 | do_chdir_cleanup (void *old_dir) |
436 | { | |
f515a1d6 | 437 | chdir ((const char *) old_dir); |
b8c9b27d | 438 | xfree (old_dir); |
e41a3b1a AC |
439 | } |
440 | #endif | |
441 | ||
028d0ed5 | 442 | struct cleanup * |
4e5d721f DE |
443 | prepare_execute_command (void) |
444 | { | |
028d0ed5 TJB |
445 | struct value *mark; |
446 | struct cleanup *cleanup; | |
447 | ||
448 | mark = value_mark (); | |
449 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 450 | |
371d5dec MS |
451 | /* With multiple threads running while the one we're examining is |
452 | stopped, the dcache can get stale without us being able to detect | |
453 | it. For the duration of the command, though, use the dcache to | |
454 | help things like backtrace. */ | |
4e5d721f DE |
455 | if (non_stop) |
456 | target_dcache_invalidate (); | |
028d0ed5 TJB |
457 | |
458 | return cleanup; | |
4e5d721f DE |
459 | } |
460 | ||
77cce10f PA |
461 | /* Tell the user if the language has changed (except first time) after |
462 | executing a command. */ | |
463 | ||
464 | void | |
465 | check_frame_language_change (void) | |
466 | { | |
467 | static int warned = 0; | |
7ff38b1c | 468 | struct frame_info *frame; |
77cce10f PA |
469 | |
470 | /* First make sure that a new frame has been selected, in case the | |
471 | command or the hooks changed the program state. */ | |
7ff38b1c | 472 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
473 | if (current_language != expected_language) |
474 | { | |
475 | if (language_mode == language_mode_auto && info_verbose) | |
476 | { | |
477 | language_info (1); /* Print what changed. */ | |
478 | } | |
479 | warned = 0; | |
480 | } | |
481 | ||
482 | /* Warn the user if the working language does not match the language | |
483 | of the current frame. Only warn the user if we are actually | |
484 | running the program, i.e. there is a stack. */ | |
485 | /* FIXME: This should be cacheing the frame and only running when | |
486 | the frame changes. */ | |
487 | ||
488 | if (has_stack_frames ()) | |
489 | { | |
490 | enum language flang; | |
491 | ||
7ff38b1c | 492 | flang = get_frame_language (frame); |
77cce10f PA |
493 | if (!warned |
494 | && flang != language_unknown | |
495 | && flang != current_language->la_language) | |
496 | { | |
497 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
498 | warned = 1; | |
499 | } | |
500 | } | |
501 | } | |
502 | ||
98880d46 PA |
503 | /* See top.h. */ |
504 | ||
0b333c5e PA |
505 | void |
506 | wait_sync_command_done (void) | |
507 | { | |
4295e285 | 508 | /* Processing events may change the current UI. */ |
4b6749b9 | 509 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
510 | struct ui *ui = current_ui; |
511 | ||
0b333c5e | 512 | while (gdb_do_one_event () >= 0) |
4295e285 | 513 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
514 | break; |
515 | } | |
516 | ||
517 | /* See top.h. */ | |
518 | ||
98880d46 PA |
519 | void |
520 | maybe_wait_sync_command_done (int was_sync) | |
521 | { | |
522 | /* If the interpreter is in sync mode (we're running a user | |
523 | command's list, running command hooks or similars), and we | |
524 | just ran a synchronous command that started the target, wait | |
525 | for that command to end. */ | |
3b12939d PA |
526 | if (!current_ui->async |
527 | && !was_sync | |
528 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 529 | wait_sync_command_done (); |
98880d46 PA |
530 | } |
531 | ||
648bf667 | 532 | /* Execute the line P as a command, in the current user context. |
d318976c | 533 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 534 | |
d318976c FN |
535 | void |
536 | execute_command (char *p, int from_tty) | |
c906108c | 537 | { |
353d1d73 | 538 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 539 | struct cmd_list_element *c; |
d318976c | 540 | char *line; |
4e5d721f | 541 | |
353d1d73 | 542 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 543 | cleanup = prepare_execute_command (); |
c906108c | 544 | |
d318976c FN |
545 | /* Force cleanup of any alloca areas if using C alloca instead of |
546 | a builtin alloca. */ | |
547 | alloca (0); | |
c906108c | 548 | |
d318976c FN |
549 | /* This can happen when command_line_input hits end of file. */ |
550 | if (p == NULL) | |
5fe41fbf TT |
551 | { |
552 | do_cleanups (cleanup); | |
5ae85e44 | 553 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
554 | return; |
555 | } | |
c906108c | 556 | |
49d03eab | 557 | target_log_command (p); |
8b93c638 | 558 | |
d318976c FN |
559 | while (*p == ' ' || *p == '\t') |
560 | p++; | |
561 | if (*p) | |
8b93c638 | 562 | { |
6f937416 | 563 | const char *cmd = p; |
d318976c | 564 | char *arg; |
3b12939d | 565 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 566 | |
d318976c | 567 | line = p; |
8b93c638 | 568 | |
16026cd7 AS |
569 | /* If trace-commands is set then this will print this command. */ |
570 | print_command_trace (p); | |
571 | ||
6f937416 PA |
572 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
573 | p = (char *) cmd; | |
8b93c638 | 574 | |
d318976c FN |
575 | /* Pass null arg rather than an empty one. */ |
576 | arg = *p ? p : 0; | |
8b93c638 | 577 | |
9f60d481 AC |
578 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
579 | while the is_complete_command(cfunc) test is just plain | |
580 | bogus. They should both be replaced by a test of the form | |
581 | c->strip_trailing_white_space_p. */ | |
582 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
583 | can't be replaced with func. This is because it is the | |
584 | cfunc, and not the func, that has the value that the | |
585 | is_complete_command hack is testing for. */ | |
586 | /* Clear off trailing whitespace, except for set and complete | |
587 | command. */ | |
d318976c FN |
588 | if (arg |
589 | && c->type != set_cmd | |
bbaca940 | 590 | && !is_complete_command (c)) |
8b93c638 | 591 | { |
d318976c FN |
592 | p = arg + strlen (arg) - 1; |
593 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
594 | p--; | |
595 | *(p + 1) = '\0'; | |
8b93c638 JM |
596 | } |
597 | ||
371d5dec | 598 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 599 | execute_cmd_pre_hook (c); |
c906108c | 600 | |
1f2bdf09 | 601 | if (c->deprecated_warn_user) |
6f937416 | 602 | deprecated_cmd_warning (line); |
c906108c | 603 | |
7d74f244 | 604 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 605 | if (c->theclass == class_user && c->user_commands) |
d318976c | 606 | execute_user_command (c, arg); |
5b9afe8a YQ |
607 | else if (c->type == set_cmd) |
608 | do_set_command (arg, from_tty, c); | |
609 | else if (c->type == show_cmd) | |
610 | do_show_command (arg, from_tty, c); | |
f436dd25 | 611 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 612 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 613 | else if (deprecated_call_command_hook) |
050a2e1d | 614 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 615 | else |
050a2e1d | 616 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 617 | |
98880d46 | 618 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 619 | |
371d5dec | 620 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 621 | execute_cmd_post_hook (c); |
c906108c | 622 | |
c906108c SS |
623 | } |
624 | ||
77cce10f | 625 | check_frame_language_change (); |
028d0ed5 | 626 | |
353d1d73 JK |
627 | do_cleanups (cleanup); |
628 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
629 | } |
630 | ||
5da1313b JK |
631 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
632 | returned string, do not display it to the screen. BATCH_FLAG will be | |
633 | temporarily set to true. */ | |
634 | ||
db1ec11f | 635 | std::string |
5da1313b JK |
636 | execute_command_to_string (char *p, int from_tty) |
637 | { | |
5da1313b JK |
638 | /* GDB_STDOUT should be better already restored during these |
639 | restoration callbacks. */ | |
b95de2b7 | 640 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 641 | |
b7b633e9 | 642 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 643 | |
d7e74731 | 644 | string_file str_file; |
5da1313b | 645 | |
ca5909c7 TT |
646 | { |
647 | current_uiout->redirect (&str_file); | |
648 | ui_out_redirect_pop redirect_popper (current_uiout); | |
649 | ||
650 | scoped_restore save_stdout | |
651 | = make_scoped_restore (&gdb_stdout, &str_file); | |
652 | scoped_restore save_stderr | |
653 | = make_scoped_restore (&gdb_stderr, &str_file); | |
654 | scoped_restore save_stdlog | |
655 | = make_scoped_restore (&gdb_stdlog, &str_file); | |
656 | scoped_restore save_stdtarg | |
657 | = make_scoped_restore (&gdb_stdtarg, &str_file); | |
658 | scoped_restore save_stdtargerr | |
659 | = make_scoped_restore (&gdb_stdtargerr, &str_file); | |
660 | ||
661 | execute_command (p, from_tty); | |
662 | } | |
5da1313b | 663 | |
d7e74731 | 664 | return std::move (str_file.string ()); |
5da1313b JK |
665 | } |
666 | ||
d318976c | 667 | \f |
47a80e90 TT |
668 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
669 | set via prevent_dont_repeat. */ | |
670 | ||
671 | static int suppress_dont_repeat = 0; | |
672 | ||
d318976c | 673 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 674 | |
d318976c FN |
675 | void |
676 | dont_repeat (void) | |
9e0b60a8 | 677 | { |
f38d3ad1 PA |
678 | struct ui *ui = current_ui; |
679 | ||
47a80e90 | 680 | if (suppress_dont_repeat || server_command) |
d318976c | 681 | return; |
9e0b60a8 | 682 | |
d318976c | 683 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
684 | thing read from stdin in line and don't want to delete it. Null |
685 | lines won't repeat here in any case. */ | |
268a799a | 686 | if (ui->instream == ui->stdin_stream) |
dc7eb48e | 687 | *saved_command_line = 0; |
9e0b60a8 | 688 | } |
47a80e90 TT |
689 | |
690 | /* Prevent dont_repeat from working, and return a cleanup that | |
691 | restores the previous state. */ | |
692 | ||
1ac32117 | 693 | scoped_restore_tmpl<int> |
47a80e90 TT |
694 | prevent_dont_repeat (void) |
695 | { | |
1ac32117 | 696 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
697 | } |
698 | ||
d318976c FN |
699 | \f |
700 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 701 | |
7a3bde34 | 702 | It prints PROMPT once at the start. |
d318976c FN |
703 | Action is compatible with "readline", e.g. space for the result is |
704 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 705 | |
d318976c | 706 | A NULL return means end of file. */ |
c5c136ea PA |
707 | |
708 | static char * | |
7a3bde34 | 709 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 710 | { |
7a3bde34 | 711 | struct buffer line_buffer; |
f38d3ad1 | 712 | struct ui *ui = current_ui; |
3212b858 PA |
713 | /* Read from stdin if we are executing a user defined command. This |
714 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 715 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 716 | int fd = fileno (stream); |
9e0b60a8 | 717 | |
7a3bde34 PA |
718 | buffer_init (&line_buffer); |
719 | ||
720 | if (prompt != NULL) | |
9e0b60a8 | 721 | { |
d318976c FN |
722 | /* Don't use a _filtered function here. It causes the assumed |
723 | character position to be off, since the newline we read from | |
724 | the user is not accounted for. */ | |
7a3bde34 | 725 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
726 | gdb_flush (gdb_stdout); |
727 | } | |
728 | ||
9e0b60a8 JM |
729 | while (1) |
730 | { | |
7a3bde34 | 731 | int c; |
3212b858 PA |
732 | int numfds; |
733 | fd_set readfds; | |
7a3bde34 | 734 | |
3212b858 PA |
735 | QUIT; |
736 | ||
737 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 738 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
739 | FD_ZERO (&readfds); |
740 | FD_SET (fd, &readfds); | |
f0881b37 | 741 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
742 | { |
743 | if (errno == EINTR) | |
744 | { | |
745 | /* If this was ctrl-c, the QUIT above handles it. */ | |
746 | continue; | |
747 | } | |
748 | perror_with_name (("select")); | |
749 | } | |
750 | ||
751 | c = fgetc (stream); | |
9e0b60a8 | 752 | |
d318976c | 753 | if (c == EOF) |
9e0b60a8 | 754 | { |
7a3bde34 | 755 | if (line_buffer.used_size > 0) |
d318976c FN |
756 | /* The last line does not end with a newline. Return it, and |
757 | if we are called again fgetc will still return EOF and | |
758 | we'll return NULL then. */ | |
9e0b60a8 | 759 | break; |
7a3bde34 | 760 | xfree (buffer_finish (&line_buffer)); |
d318976c | 761 | return NULL; |
9e0b60a8 | 762 | } |
c5aa993b | 763 | |
d318976c | 764 | if (c == '\n') |
9e0b60a8 | 765 | { |
7a3bde34 PA |
766 | if (line_buffer.used_size > 0 |
767 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
768 | line_buffer.used_size--; | |
d318976c | 769 | break; |
9e0b60a8 | 770 | } |
9e0b60a8 | 771 | |
7a3bde34 | 772 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
773 | } |
774 | ||
7a3bde34 PA |
775 | buffer_grow_char (&line_buffer, '\0'); |
776 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
777 | } |
778 | ||
d318976c FN |
779 | /* Variables which control command line editing and history |
780 | substitution. These variables are given default values at the end | |
781 | of this file. */ | |
782 | static int command_editing_p; | |
920d2a44 | 783 | |
d318976c FN |
784 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
785 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 786 | event-top.c into this file, top.c. */ |
920d2a44 | 787 | |
d318976c | 788 | /* static */ int history_expansion_p; |
920d2a44 | 789 | |
d318976c | 790 | static int write_history_p; |
920d2a44 AC |
791 | static void |
792 | show_write_history_p (struct ui_file *file, int from_tty, | |
793 | struct cmd_list_element *c, const char *value) | |
794 | { | |
795 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
796 | value); | |
797 | } | |
798 | ||
840a9a1f | 799 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
800 | command. The value -1 means unlimited, and -2 means undefined. */ |
801 | static int history_size_setshow_var = -2; | |
840a9a1f | 802 | |
920d2a44 AC |
803 | static void |
804 | show_history_size (struct ui_file *file, int from_tty, | |
805 | struct cmd_list_element *c, const char *value) | |
806 | { | |
807 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
808 | value); | |
809 | } | |
810 | ||
fc637f04 PP |
811 | /* Variable associated with the "history remove-duplicates" option. |
812 | The value -1 means unlimited. */ | |
813 | static int history_remove_duplicates = 0; | |
814 | ||
815 | static void | |
816 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
817 | struct cmd_list_element *c, const char *value) | |
818 | { | |
819 | fprintf_filtered (file, | |
820 | _("The number of history entries to look back at for " | |
821 | "duplicates is %s.\n"), | |
822 | value); | |
823 | } | |
824 | ||
d318976c | 825 | static char *history_filename; |
920d2a44 AC |
826 | static void |
827 | show_history_filename (struct ui_file *file, int from_tty, | |
828 | struct cmd_list_element *c, const char *value) | |
829 | { | |
3e43a32a MS |
830 | fprintf_filtered (file, _("The filename in which to record " |
831 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
832 | value); |
833 | } | |
9e0b60a8 | 834 | |
b4f5539f | 835 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 836 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
837 | a single gdb invocation. At the ordinary top-level prompt we might |
838 | be using the async readline. That means we can't use | |
839 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
840 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
841 | `define'), gdb wants a synchronous response. |
842 | ||
843 | We used to call readline() directly, running it in synchronous | |
844 | mode. But mixing modes this way is not supported, and as of | |
845 | readline 5.x it no longer works; the arrow keys come unbound during | |
846 | the synchronous call. So we make a nested call into the event | |
847 | loop. That's what gdb_readline_wrapper is for. */ | |
848 | ||
849 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
850 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
851 | the user types Control-D for EOF. */ | |
852 | static int gdb_readline_wrapper_done; | |
853 | ||
854 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
855 | is seen. */ | |
856 | static char *gdb_readline_wrapper_result; | |
857 | ||
858 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
859 | to be called after the newline is processed (which will redisplay | |
860 | the prompt). But in gdb_readline_wrapper we will not get a new | |
861 | prompt until the next call, or until we return to the event loop. | |
862 | So we disable this hook around the newline and restore it before we | |
863 | return. */ | |
864 | static void (*saved_after_char_processing_hook) (void); | |
865 | ||
948578a9 | 866 | |
948578a9 PP |
867 | /* See top.h. */ |
868 | ||
869 | int | |
dbf30ca3 | 870 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 871 | { |
dbf30ca3 | 872 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
873 | } |
874 | ||
875 | ||
2e03ee74 DJ |
876 | /* This function is called when readline has seen a complete line of |
877 | text. */ | |
878 | ||
879 | static void | |
880 | gdb_readline_wrapper_line (char *line) | |
881 | { | |
882 | gdb_assert (!gdb_readline_wrapper_done); | |
883 | gdb_readline_wrapper_result = line; | |
884 | gdb_readline_wrapper_done = 1; | |
885 | ||
886 | /* Prevent operate-and-get-next from acting too early. */ | |
887 | saved_after_char_processing_hook = after_char_processing_hook; | |
888 | after_char_processing_hook = NULL; | |
1b05479a DJ |
889 | |
890 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 891 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
892 | reinstall the callback handler, which puts the terminal in raw |
893 | mode (or in readline lingo, in prepped state), when we're next | |
894 | ready to process user input, either in display_gdb_prompt, or if | |
895 | we're handling an asynchronous target event and running in the | |
896 | background, just before returning to the event loop to process | |
897 | further input (or more target events). */ | |
3c216924 | 898 | if (current_ui->command_editing) |
d3d4baed | 899 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
900 | } |
901 | ||
902 | struct gdb_readline_wrapper_cleanup | |
903 | { | |
904 | void (*handler_orig) (char *); | |
2e03ee74 | 905 | int already_prompted_orig; |
93d6eb10 PA |
906 | |
907 | /* Whether the target was async. */ | |
908 | int target_is_async_orig; | |
2e03ee74 DJ |
909 | }; |
910 | ||
911 | static void | |
912 | gdb_readline_wrapper_cleanup (void *arg) | |
913 | { | |
a74e1786 | 914 | struct ui *ui = current_ui; |
19ba03f4 SM |
915 | struct gdb_readline_wrapper_cleanup *cleanup |
916 | = (struct gdb_readline_wrapper_cleanup *) arg; | |
2e03ee74 | 917 | |
3c216924 PA |
918 | if (ui->command_editing) |
919 | rl_already_prompted = cleanup->already_prompted_orig; | |
2e03ee74 | 920 | |
a74e1786 PA |
921 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
922 | ui->input_handler = cleanup->handler_orig; | |
0017922d | 923 | |
d3d4baed PA |
924 | /* Don't restore our input handler in readline yet. That would make |
925 | readline prep the terminal (putting it in raw mode), while the | |
926 | line we just read may trigger execution of a command that expects | |
927 | the terminal in the default cooked/canonical mode, such as e.g., | |
928 | running Python's interactive online help utility. See | |
929 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
0017922d | 930 | |
2e03ee74 DJ |
931 | gdb_readline_wrapper_result = NULL; |
932 | gdb_readline_wrapper_done = 0; | |
dbf30ca3 PA |
933 | ui->secondary_prompt_depth--; |
934 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
2e03ee74 DJ |
935 | |
936 | after_char_processing_hook = saved_after_char_processing_hook; | |
937 | saved_after_char_processing_hook = NULL; | |
938 | ||
93d6eb10 | 939 | if (cleanup->target_is_async_orig) |
6a3753b3 | 940 | target_async (1); |
93d6eb10 | 941 | |
2e03ee74 DJ |
942 | xfree (cleanup); |
943 | } | |
944 | ||
b4f5539f | 945 | char * |
38bcc89d | 946 | gdb_readline_wrapper (const char *prompt) |
b4f5539f | 947 | { |
a74e1786 | 948 | struct ui *ui = current_ui; |
2e03ee74 DJ |
949 | struct cleanup *back_to; |
950 | struct gdb_readline_wrapper_cleanup *cleanup; | |
951 | char *retval; | |
952 | ||
8d749320 | 953 | cleanup = XNEW (struct gdb_readline_wrapper_cleanup); |
a74e1786 PA |
954 | cleanup->handler_orig = ui->input_handler; |
955 | ui->input_handler = gdb_readline_wrapper_line; | |
2e03ee74 | 956 | |
3c216924 PA |
957 | if (ui->command_editing) |
958 | cleanup->already_prompted_orig = rl_already_prompted; | |
959 | else | |
960 | cleanup->already_prompted_orig = 0; | |
2e03ee74 | 961 | |
93d6eb10 PA |
962 | cleanup->target_is_async_orig = target_is_async_p (); |
963 | ||
dbf30ca3 | 964 | ui->secondary_prompt_depth++; |
2e03ee74 DJ |
965 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); |
966 | ||
4295e285 | 967 | /* Processing events may change the current UI. */ |
4b6749b9 | 968 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 | 969 | |
93d6eb10 | 970 | if (cleanup->target_is_async_orig) |
6a3753b3 | 971 | target_async (0); |
93d6eb10 | 972 | |
6e5d74e7 PA |
973 | /* Display our prompt and prevent double prompt display. Don't pass |
974 | down a NULL prompt, since that has special meaning for | |
975 | display_gdb_prompt -- it indicates a request to print the primary | |
976 | prompt, while we want a secondary prompt here. */ | |
977 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
978 | if (ui->command_editing) |
979 | rl_already_prompted = 1; | |
2e03ee74 | 980 | |
362646f5 | 981 | if (after_char_processing_hook) |
2e03ee74 DJ |
982 | (*after_char_processing_hook) (); |
983 | gdb_assert (after_char_processing_hook == NULL); | |
984 | ||
e0dd0826 | 985 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
986 | if (gdb_readline_wrapper_done) |
987 | break; | |
b4f5539f | 988 | |
2e03ee74 DJ |
989 | retval = gdb_readline_wrapper_result; |
990 | do_cleanups (back_to); | |
991 | return retval; | |
b4f5539f TT |
992 | } |
993 | ||
9e0b60a8 | 994 | \f |
467d8519 TT |
995 | /* The current saved history number from operate-and-get-next. |
996 | This is -1 if not valid. */ | |
997 | static int operate_saved_history = -1; | |
998 | ||
999 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1000 | do its work. */ | |
b9362cc7 | 1001 | static void |
5ae5f592 | 1002 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1003 | { |
1004 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1005 | |
467d8519 TT |
1006 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1007 | rl_get_previous_history (delta, 0); | |
1008 | operate_saved_history = -1; | |
1009 | ||
1010 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1011 | rl_redisplay (); |
467d8519 TT |
1012 | |
1013 | after_char_processing_hook = NULL; | |
1014 | rl_pre_input_hook = NULL; | |
1015 | } | |
1016 | ||
1017 | /* This is a gdb-local readline command handler. It accepts the | |
1018 | current command line (like RET does) and, if this command was taken | |
1019 | from the history, arranges for the next command in the history to | |
1020 | appear on the command line when the prompt returns. | |
1021 | We ignore the arguments. */ | |
1022 | static int | |
1023 | gdb_rl_operate_and_get_next (int count, int key) | |
1024 | { | |
b5686e99 MK |
1025 | int where; |
1026 | ||
362646f5 AC |
1027 | /* Use the async hook. */ |
1028 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1029 | |
b5686e99 MK |
1030 | /* Find the current line, and find the next line to use. */ |
1031 | where = where_history(); | |
1032 | ||
1fb2e2b5 PA |
1033 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1034 | || (where >= history_length - 1)) | |
b5686e99 MK |
1035 | operate_saved_history = where; |
1036 | else | |
1037 | operate_saved_history = where + 1; | |
1038 | ||
467d8519 TT |
1039 | return rl_newline (1, key); |
1040 | } | |
08b13bdd PP |
1041 | |
1042 | /* Number of user commands executed during this session. */ | |
1043 | ||
1044 | static int command_count = 0; | |
1045 | ||
1046 | /* Add the user command COMMAND to the input history list. */ | |
1047 | ||
1048 | void | |
1049 | gdb_add_history (const char *command) | |
1050 | { | |
08b13bdd | 1051 | command_count++; |
fc637f04 PP |
1052 | |
1053 | if (history_remove_duplicates != 0) | |
1054 | { | |
1055 | int lookbehind; | |
1056 | int lookbehind_threshold; | |
1057 | ||
1058 | /* The lookbehind threshold for finding a duplicate history entry is | |
1059 | bounded by command_count because we can't meaningfully delete | |
1060 | history entries that are already stored in the history file since | |
1061 | the history file is appended to. */ | |
1062 | if (history_remove_duplicates == -1 | |
1063 | || history_remove_duplicates > command_count) | |
1064 | lookbehind_threshold = command_count; | |
1065 | else | |
1066 | lookbehind_threshold = history_remove_duplicates; | |
1067 | ||
1068 | using_history (); | |
1069 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1070 | { | |
1071 | HIST_ENTRY *temp = previous_history (); | |
1072 | ||
1073 | if (temp == NULL) | |
1074 | break; | |
1075 | ||
1076 | if (strcmp (temp->line, command) == 0) | |
1077 | { | |
1078 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1079 | command_count--; | |
1080 | free_history_entry (prev); | |
1081 | break; | |
1082 | } | |
1083 | } | |
1084 | using_history (); | |
1085 | } | |
1086 | ||
1087 | add_history (command); | |
08b13bdd PP |
1088 | } |
1089 | ||
1090 | /* Safely append new history entries to the history file in a corruption-free | |
1091 | way using an intermediate local history file. */ | |
1092 | ||
1093 | static void | |
1094 | gdb_safe_append_history (void) | |
1095 | { | |
1096 | int ret, saved_errno; | |
1097 | char *local_history_filename; | |
1098 | struct cleanup *old_chain; | |
1099 | ||
1100 | local_history_filename | |
b196bc4c | 1101 | = xstrprintf ("%s-gdb%ld~", history_filename, (long) getpid ()); |
08b13bdd PP |
1102 | old_chain = make_cleanup (xfree, local_history_filename); |
1103 | ||
1104 | ret = rename (history_filename, local_history_filename); | |
1105 | saved_errno = errno; | |
1106 | if (ret < 0 && saved_errno != ENOENT) | |
1107 | { | |
1108 | warning (_("Could not rename %s to %s: %s"), | |
1109 | history_filename, local_history_filename, | |
1110 | safe_strerror (saved_errno)); | |
1111 | } | |
1112 | else | |
1113 | { | |
1114 | if (ret < 0) | |
1115 | { | |
1116 | /* If the rename failed with ENOENT then either the global history | |
1117 | file never existed in the first place or another GDB process is | |
1118 | currently appending to it (and has thus temporarily renamed it). | |
1119 | Since we can't distinguish between these two cases, we have to | |
1120 | conservatively assume the first case and therefore must write out | |
1121 | (not append) our known history to our local history file and try | |
1122 | to move it back anyway. Otherwise a global history file would | |
1123 | never get created! */ | |
1124 | gdb_assert (saved_errno == ENOENT); | |
1125 | write_history (local_history_filename); | |
1126 | } | |
1127 | else | |
1128 | { | |
1129 | append_history (command_count, local_history_filename); | |
2093d2d3 PP |
1130 | if (history_is_stifled ()) |
1131 | history_truncate_file (local_history_filename, history_max_entries); | |
08b13bdd PP |
1132 | } |
1133 | ||
1134 | ret = rename (local_history_filename, history_filename); | |
1135 | saved_errno = errno; | |
1136 | if (ret < 0 && saved_errno != EEXIST) | |
1137 | warning (_("Could not rename %s to %s: %s"), | |
1138 | local_history_filename, history_filename, | |
1139 | safe_strerror (saved_errno)); | |
1140 | } | |
1141 | ||
1142 | do_cleanups (old_chain); | |
1143 | } | |
1144 | ||
b69d38af PA |
1145 | /* Read one line from the command input stream `instream' into a local |
1146 | static buffer. The buffer is made bigger as necessary. Returns | |
1147 | the address of the start of the line. | |
9e0b60a8 | 1148 | |
d318976c | 1149 | NULL is returned for end of file. |
9e0b60a8 | 1150 | |
268a799a | 1151 | *If* input is from an interactive stream (stdin), the line read is |
b69d38af PA |
1152 | copied into the global 'saved_command_line' so that it can be |
1153 | repeated. | |
9e0b60a8 | 1154 | |
b69d38af PA |
1155 | This routine either uses fancy command line editing or simple input |
1156 | as the user has requested. */ | |
10689f25 | 1157 | |
d318976c | 1158 | char * |
a121b7c1 PA |
1159 | command_line_input (const char *prompt_arg, int repeat, |
1160 | const char *annotation_suffix) | |
9e0b60a8 | 1161 | { |
b69d38af PA |
1162 | static struct buffer cmd_line_buffer; |
1163 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1164 | struct ui *ui = current_ui; |
38bcc89d | 1165 | const char *prompt = prompt_arg; |
b69d38af | 1166 | char *cmd; |
268a799a | 1167 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1168 | |
1169 | /* The annotation suffix must be non-NULL. */ | |
1170 | if (annotation_suffix == NULL) | |
1171 | annotation_suffix = ""; | |
9e0b60a8 | 1172 | |
268a799a | 1173 | if (from_tty && annotation_level > 1) |
d318976c | 1174 | { |
38bcc89d SM |
1175 | char *local_prompt; |
1176 | ||
224c3ddb SM |
1177 | local_prompt |
1178 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1179 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1180 | if (prompt == NULL) |
d318976c FN |
1181 | local_prompt[0] = '\0'; |
1182 | else | |
38bcc89d | 1183 | strcpy (local_prompt, prompt); |
d318976c FN |
1184 | strcat (local_prompt, "\n\032\032"); |
1185 | strcat (local_prompt, annotation_suffix); | |
1186 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1187 | |
1188 | prompt = local_prompt; | |
d318976c | 1189 | } |
9e0b60a8 | 1190 | |
b69d38af | 1191 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1192 | { |
b69d38af PA |
1193 | buffer_init (&cmd_line_buffer); |
1194 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1195 | } |
9e0b60a8 | 1196 | |
b69d38af PA |
1197 | /* Starting a new command line. */ |
1198 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1199 | |
d318976c FN |
1200 | #ifdef STOP_SIGNAL |
1201 | if (job_control) | |
362646f5 | 1202 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
1203 | #endif |
1204 | ||
1205 | while (1) | |
9e0b60a8 | 1206 | { |
b69d38af PA |
1207 | char *rl; |
1208 | ||
371d5dec MS |
1209 | /* Make sure that all output has been output. Some machines may |
1210 | let you get away with leaving out some of the gdb_flush, but | |
1211 | not all. */ | |
d318976c FN |
1212 | wrap_here (""); |
1213 | gdb_flush (gdb_stdout); | |
1214 | gdb_flush (gdb_stderr); | |
1215 | ||
1216 | if (source_file_name != NULL) | |
637537d0 | 1217 | ++source_line_number; |
d318976c | 1218 | |
268a799a | 1219 | if (from_tty && annotation_level > 1) |
d318976c | 1220 | { |
306d9ac5 DC |
1221 | puts_unfiltered ("\n\032\032pre-"); |
1222 | puts_unfiltered (annotation_suffix); | |
1223 | puts_unfiltered ("\n"); | |
d318976c FN |
1224 | } |
1225 | ||
1226 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1227 | if (deprecated_readline_hook |
1228 | && from_tty | |
1229 | && input_interactive_p (current_ui)) | |
d318976c | 1230 | { |
38bcc89d | 1231 | rl = (*deprecated_readline_hook) (prompt); |
d318976c | 1232 | } |
268a799a PA |
1233 | else if (command_editing_p |
1234 | && from_tty | |
1235 | && input_interactive_p (current_ui)) | |
d318976c | 1236 | { |
38bcc89d | 1237 | rl = gdb_readline_wrapper (prompt); |
d318976c | 1238 | } |
9e0b60a8 | 1239 | else |
d318976c | 1240 | { |
c5c136ea | 1241 | rl = gdb_readline_no_editing (prompt); |
d318976c | 1242 | } |
9e0b60a8 | 1243 | |
b69d38af PA |
1244 | cmd = handle_line_of_input (&cmd_line_buffer, rl, |
1245 | repeat, annotation_suffix); | |
1246 | if (cmd == (char *) EOF) | |
d318976c | 1247 | { |
b69d38af | 1248 | cmd = NULL; |
d318976c | 1249 | break; |
9e0b60a8 | 1250 | } |
b69d38af | 1251 | if (cmd != NULL) |
d318976c | 1252 | break; |
9e0b60a8 | 1253 | |
6e5d74e7 PA |
1254 | /* Got partial input. I.e., got a line that ends with a |
1255 | continuation character (backslash). Suppress printing the | |
1256 | prompt again. */ | |
38bcc89d | 1257 | prompt = NULL; |
d318976c | 1258 | } |
9e0b60a8 | 1259 | |
d318976c FN |
1260 | #ifdef STOP_SIGNAL |
1261 | if (job_control) | |
1262 | signal (STOP_SIGNAL, SIG_DFL); | |
1263 | #endif | |
9e0b60a8 | 1264 | |
b69d38af | 1265 | return cmd; |
9e0b60a8 JM |
1266 | } |
1267 | \f | |
371d5dec | 1268 | /* Print the GDB banner. */ |
9e0b60a8 | 1269 | void |
fba45db2 | 1270 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1271 | { |
1272 | /* From GNU coding standards, first line is meant to be easy for a | |
1273 | program to parse, and is just canonical program name and version | |
371d5dec | 1274 | number, which starts after last space. */ |
9e0b60a8 | 1275 | |
c16158bc | 1276 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1277 | |
371d5dec | 1278 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1279 | |
3e43a32a | 1280 | fprintf_filtered (stream, |
61baf725 | 1281 | "Copyright (C) 2017 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1282 | |
1283 | /* Following the copyright is a brief statement that the program is | |
1284 | free software, that users are free to copy and change it on | |
1285 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1286 | there is no warranty. */ |
9e0b60a8 JM |
1287 | |
1288 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1289 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1290 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1291 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1292 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1293 | |
371d5dec | 1294 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1295 | |
1296 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1297 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1298 | { |
3e43a32a MS |
1299 | fprintf_filtered (stream, "--host=%s --target=%s", |
1300 | host_name, target_name); | |
9e0b60a8 JM |
1301 | } |
1302 | else | |
1303 | { | |
1304 | fprintf_filtered (stream, "%s", host_name); | |
1305 | } | |
6eaaf48b EZ |
1306 | fprintf_filtered (stream, "\".\n\ |
1307 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1308 | |
1309 | if (REPORT_BUGS_TO[0]) | |
1310 | { | |
6eaaf48b | 1311 | fprintf_filtered (stream, |
c16158bc | 1312 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1313 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1314 | } |
1cf55f60 PM |
1315 | fprintf_filtered (stream, |
1316 | _("Find the GDB manual and other documentation \ | |
1317 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1318 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1319 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1320 | commands related to \"word\".")); |
9e0b60a8 | 1321 | } |
6eaaf48b EZ |
1322 | |
1323 | /* Print the details of GDB build-time configuration. */ | |
1324 | void | |
1325 | print_gdb_configuration (struct ui_file *stream) | |
1326 | { | |
1327 | fprintf_filtered (stream, _("\ | |
1328 | This GDB was configured as follows:\n\ | |
1329 | configure --host=%s --target=%s\n\ | |
1330 | "), host_name, target_name); | |
1331 | fprintf_filtered (stream, _("\ | |
1332 | --with-auto-load-dir=%s\n\ | |
1333 | --with-auto-load-safe-path=%s\n\ | |
1334 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1335 | #if HAVE_LIBEXPAT | |
1336 | fprintf_filtered (stream, _("\ | |
1337 | --with-expat\n\ | |
1338 | ")); | |
1339 | #else | |
1340 | fprintf_filtered (stream, _("\ | |
1341 | --without-expat\n\ | |
1342 | ")); | |
1343 | #endif | |
1344 | if (GDB_DATADIR[0]) | |
1345 | fprintf_filtered (stream, _("\ | |
1346 | --with-gdb-datadir=%s%s\n\ | |
1347 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1348 | #ifdef ICONV_BIN | |
1349 | fprintf_filtered (stream, _("\ | |
1350 | --with-iconv-bin=%s%s\n\ | |
1351 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1352 | #endif | |
1353 | if (JIT_READER_DIR[0]) | |
1354 | fprintf_filtered (stream, _("\ | |
1355 | --with-jit-reader-dir=%s%s\n\ | |
1356 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1357 | #if HAVE_LIBUNWIND_IA64_H | |
1358 | fprintf_filtered (stream, _("\ | |
1359 | --with-libunwind-ia64\n\ | |
1360 | ")); | |
1361 | #else | |
1362 | fprintf_filtered (stream, _("\ | |
1363 | --without-libunwind-ia64\n\ | |
1364 | ")); | |
1365 | #endif | |
1366 | #if HAVE_LIBLZMA | |
1367 | fprintf_filtered (stream, _("\ | |
1368 | --with-lzma\n\ | |
1369 | ")); | |
1370 | #else | |
1371 | fprintf_filtered (stream, _("\ | |
1372 | --without-lzma\n\ | |
1373 | ")); | |
1374 | #endif | |
1375 | #ifdef WITH_PYTHON_PATH | |
1376 | fprintf_filtered (stream, _("\ | |
1377 | --with-python=%s%s\n\ | |
1378 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1379 | #endif | |
97d66cc6 EZ |
1380 | #if HAVE_GUILE |
1381 | fprintf_filtered (stream, _("\ | |
1382 | --with-guile\n\ | |
1383 | ")); | |
1384 | #else | |
1385 | fprintf_filtered (stream, _("\ | |
1386 | --without-guile\n\ | |
1387 | ")); | |
1388 | #endif | |
6eaaf48b EZ |
1389 | #ifdef RELOC_SRCDIR |
1390 | fprintf_filtered (stream, _("\ | |
1391 | --with-relocated-sources=%s\n\ | |
1392 | "), RELOC_SRCDIR); | |
1393 | #endif | |
1394 | if (DEBUGDIR[0]) | |
1395 | fprintf_filtered (stream, _("\ | |
1396 | --with-separate-debug-dir=%s%s\n\ | |
1397 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1398 | if (TARGET_SYSTEM_ROOT[0]) | |
1399 | fprintf_filtered (stream, _("\ | |
1400 | --with-sysroot=%s%s\n\ | |
1401 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1402 | if (SYSTEM_GDBINIT[0]) | |
1403 | fprintf_filtered (stream, _("\ | |
1404 | --with-system-gdbinit=%s%s\n\ | |
1405 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
ab116149 YQ |
1406 | #if HAVE_LIBBABELTRACE |
1407 | fprintf_filtered (stream, _("\ | |
1408 | --with-babeltrace\n\ | |
1409 | ")); | |
1410 | #else | |
1411 | fprintf_filtered (stream, _("\ | |
1412 | --without-babeltrace\n\ | |
1413 | ")); | |
1414 | #endif | |
48d1d6f5 EZ |
1415 | /* We assume "relocatable" will be printed at least once, thus we always |
1416 | print this text. It's a reasonably safe assumption for now. */ | |
1417 | fprintf_filtered (stream, _("\n\ | |
1418 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1419 | tree, and GDB will still find it.)\n\ | |
1420 | ")); | |
6eaaf48b | 1421 | } |
9e0b60a8 | 1422 | \f |
95298e72 | 1423 | |
ab821bc6 PA |
1424 | /* The current top level prompt, settable with "set prompt", and/or |
1425 | with the python `gdb.prompt_hook' hook. */ | |
1426 | static char *top_prompt; | |
9e0b60a8 | 1427 | |
ab821bc6 | 1428 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1429 | |
1430 | char * | |
ab821bc6 | 1431 | get_prompt (void) |
95298e72 | 1432 | { |
ab821bc6 | 1433 | return top_prompt; |
95298e72 PM |
1434 | } |
1435 | ||
ab821bc6 | 1436 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1437 | |
1438 | void | |
ab821bc6 | 1439 | set_prompt (const char *s) |
95298e72 | 1440 | { |
ab821bc6 | 1441 | char *p = xstrdup (s); |
95298e72 | 1442 | |
ab821bc6 PA |
1443 | xfree (top_prompt); |
1444 | top_prompt = p; | |
9e0b60a8 | 1445 | } |
9e0b60a8 | 1446 | \f |
c5aa993b | 1447 | |
b0abbc58 | 1448 | struct qt_args |
9e0b60a8 | 1449 | { |
b0abbc58 JJ |
1450 | char *args; |
1451 | int from_tty; | |
1452 | }; | |
9e0b60a8 | 1453 | |
54a012c9 PA |
1454 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1455 | inferior, depending on how we originally gained control of it. */ | |
1456 | ||
1457 | static int | |
1458 | kill_or_detach (struct inferior *inf, void *args) | |
1459 | { | |
19ba03f4 | 1460 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 PA |
1461 | struct thread_info *thread; |
1462 | ||
6c95b8df PA |
1463 | if (inf->pid == 0) |
1464 | return 0; | |
1465 | ||
b8fa0bfa PA |
1466 | thread = any_thread_of_process (inf->pid); |
1467 | if (thread != NULL) | |
9e0b60a8 | 1468 | { |
54a012c9 | 1469 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1470 | |
1471 | /* Leave core files alone. */ | |
1472 | if (target_has_execution) | |
1473 | { | |
1474 | if (inf->attach_flag) | |
1475 | target_detach (qt->args, qt->from_tty); | |
1476 | else | |
1477 | target_kill (); | |
1478 | } | |
9e0b60a8 JM |
1479 | } |
1480 | ||
54a012c9 PA |
1481 | return 0; |
1482 | } | |
1483 | ||
b8fa0bfa PA |
1484 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1485 | will do to each inferior on a "quit". ARG points to a struct | |
1486 | ui_out where output is to be collected. */ | |
1487 | ||
1488 | static int | |
1489 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1490 | { | |
19ba03f4 | 1491 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1492 | |
6c95b8df PA |
1493 | if (inf->pid == 0) |
1494 | return 0; | |
1495 | ||
b8fa0bfa PA |
1496 | if (inf->attach_flag) |
1497 | fprintf_filtered (stb, | |
1498 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1499 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1500 | else | |
1501 | fprintf_filtered (stb, | |
1502 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1503 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1504 | ||
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | /* If necessary, make the user confirm that we should quit. Return | |
1509 | non-zero if we should quit, zero if we shouldn't. */ | |
1510 | ||
1511 | int | |
1512 | quit_confirm (void) | |
1513 | { | |
b8fa0bfa PA |
1514 | /* Don't even ask if we're only debugging a core file inferior. */ |
1515 | if (!have_live_inferiors ()) | |
1516 | return 1; | |
1517 | ||
1518 | /* Build the query string as a single string. */ | |
d7e74731 | 1519 | string_file stb; |
b8fa0bfa | 1520 | |
d7e74731 PA |
1521 | stb.puts (_("A debugging session is active.\n\n")); |
1522 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1523 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1524 | |
d7e74731 | 1525 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1526 | } |
1527 | ||
18206ca3 PP |
1528 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1529 | terminal so that we leave the terminal in the state we acquired it. */ | |
1530 | ||
1531 | static void | |
1532 | undo_terminal_modifications_before_exit (void) | |
1533 | { | |
3c216924 PA |
1534 | struct ui *saved_top_level = current_ui; |
1535 | ||
223ffa71 | 1536 | target_terminal::ours (); |
3c216924 PA |
1537 | |
1538 | current_ui = main_ui; | |
1539 | ||
18206ca3 PP |
1540 | #if defined(TUI) |
1541 | tui_disable (); | |
1542 | #endif | |
3c216924 PA |
1543 | gdb_disable_readline (); |
1544 | ||
1545 | current_ui = saved_top_level; | |
18206ca3 PP |
1546 | } |
1547 | ||
1548 | ||
b0abbc58 JJ |
1549 | /* Quit without asking for confirmation. */ |
1550 | ||
1551 | void | |
36cf1806 | 1552 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1553 | { |
1554 | int exit_code = 0; | |
365c70b1 | 1555 | struct qt_args qt; |
b0abbc58 | 1556 | |
18206ca3 PP |
1557 | undo_terminal_modifications_before_exit (); |
1558 | ||
b0abbc58 | 1559 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1560 | value of that expression. */ |
36cf1806 TT |
1561 | if (exit_arg) |
1562 | exit_code = *exit_arg; | |
4b0ad762 AS |
1563 | else if (return_child_result) |
1564 | exit_code = return_child_result_value; | |
b0abbc58 | 1565 | |
36cf1806 | 1566 | qt.args = NULL; |
365c70b1 JJ |
1567 | qt.from_tty = from_tty; |
1568 | ||
b0abbc58 | 1569 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1570 | |
1571 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
492d29ea | 1572 | TRY |
2f9d54cf PA |
1573 | { |
1574 | disconnect_tracing (); | |
1575 | iterate_over_inferiors (kill_or_detach, &qt); | |
1576 | } | |
492d29ea PA |
1577 | CATCH (ex, RETURN_MASK_ALL) |
1578 | { | |
1579 | exception_print (gdb_stderr, ex); | |
1580 | } | |
1581 | END_CATCH | |
2f9d54cf PA |
1582 | |
1583 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1584 | them all out. */ | |
492d29ea | 1585 | TRY |
2f9d54cf PA |
1586 | { |
1587 | pop_all_targets (); | |
1588 | } | |
492d29ea PA |
1589 | CATCH (ex, RETURN_MASK_ALL) |
1590 | { | |
1591 | exception_print (gdb_stderr, ex); | |
1592 | } | |
1593 | END_CATCH | |
2f9d54cf PA |
1594 | |
1595 | /* Save the history information if it is appropriate to do so. */ | |
492d29ea | 1596 | TRY |
2f9d54cf | 1597 | { |
268a799a PA |
1598 | if (write_history_p && history_filename) |
1599 | { | |
1600 | struct ui *ui; | |
1601 | int save = 0; | |
1602 | ||
1603 | /* History is currently shared between all UIs. If there's | |
1604 | any UI with a terminal, save history. */ | |
1605 | ALL_UIS (ui) | |
1606 | { | |
1607 | if (input_interactive_p (ui)) | |
1608 | { | |
1609 | save = 1; | |
1610 | break; | |
1611 | } | |
1612 | } | |
1613 | ||
1614 | if (save) | |
1615 | gdb_safe_append_history (); | |
1616 | } | |
2f9d54cf | 1617 | } |
492d29ea PA |
1618 | CATCH (ex, RETURN_MASK_ALL) |
1619 | { | |
1620 | exception_print (gdb_stderr, ex); | |
1621 | } | |
1622 | END_CATCH | |
2f9d54cf PA |
1623 | |
1624 | /* Do any final cleanups before exiting. */ | |
492d29ea | 1625 | TRY |
2f9d54cf PA |
1626 | { |
1627 | do_final_cleanups (all_cleanups ()); | |
1628 | } | |
492d29ea PA |
1629 | CATCH (ex, RETURN_MASK_ALL) |
1630 | { | |
1631 | exception_print (gdb_stderr, ex); | |
1632 | } | |
1633 | END_CATCH | |
b0abbc58 | 1634 | |
9e0b60a8 JM |
1635 | exit (exit_code); |
1636 | } | |
1637 | ||
268a799a PA |
1638 | /* The value of the "interactive-mode" setting. */ |
1639 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1640 | |
268a799a PA |
1641 | /* Implement the "show interactive-mode" option. */ |
1642 | ||
1643 | static void | |
1644 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1645 | struct cmd_list_element *c, | |
1646 | const char *value) | |
9e0b60a8 | 1647 | { |
268a799a PA |
1648 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1649 | fprintf_filtered (file, "Debugger's interactive mode " | |
1650 | "is %s (currently %s).\n", | |
d9de1fe3 | 1651 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1652 | else |
1653 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1654 | } | |
1655 | ||
1656 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1657 | |
268a799a PA |
1658 | int |
1659 | input_interactive_p (struct ui *ui) | |
1660 | { | |
c63a1f86 JK |
1661 | if (batch_flag) |
1662 | return 0; | |
1663 | ||
268a799a PA |
1664 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1665 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1666 | |
268a799a | 1667 | return ui->input_interactive_p; |
9e0b60a8 JM |
1668 | } |
1669 | \f | |
9e0b60a8 | 1670 | static void |
fba45db2 | 1671 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1672 | { |
dc7eb48e PA |
1673 | /* Can't call dont_repeat here because we're not necessarily reading |
1674 | from stdin. */ | |
1675 | *saved_command_line = 0; | |
9e0b60a8 JM |
1676 | } |
1677 | \f | |
1678 | /* Functions to manipulate command line editing control variables. */ | |
1679 | ||
1680 | /* Number of commands to print in each call to show_commands. */ | |
1681 | #define Hist_print 10 | |
d318976c | 1682 | void |
fba45db2 | 1683 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1684 | { |
1685 | /* Index for history commands. Relative to history_base. */ | |
1686 | int offset; | |
1687 | ||
1688 | /* Number of the history entry which we are planning to display next. | |
1689 | Relative to history_base. */ | |
1690 | static int num = 0; | |
1691 | ||
9e0b60a8 | 1692 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1693 | |
1694 | if (args) | |
1695 | { | |
1696 | if (args[0] == '+' && args[1] == '\0') | |
1697 | /* "info editing +" should print from the stored position. */ | |
1698 | ; | |
1699 | else | |
1700 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1701 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1702 | } |
1703 | /* "show commands" means print the last Hist_print commands. */ | |
1704 | else | |
1705 | { | |
840a9a1f | 1706 | num = history_length - Hist_print; |
9e0b60a8 JM |
1707 | } |
1708 | ||
1709 | if (num < 0) | |
1710 | num = 0; | |
1711 | ||
1712 | /* If there are at least Hist_print commands, we want to display the last | |
1713 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1714 | if (history_length - num < Hist_print) |
9e0b60a8 | 1715 | { |
840a9a1f | 1716 | num = history_length - Hist_print; |
9e0b60a8 JM |
1717 | if (num < 0) |
1718 | num = 0; | |
1719 | } | |
1720 | ||
840a9a1f PA |
1721 | for (offset = num; |
1722 | offset < num + Hist_print && offset < history_length; | |
1723 | offset++) | |
9e0b60a8 JM |
1724 | { |
1725 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1726 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1727 | } |
1728 | ||
1729 | /* The next command we want to display is the next one that we haven't | |
1730 | displayed yet. */ | |
1731 | num += Hist_print; | |
1732 | ||
1733 | /* If the user repeats this command with return, it should do what | |
1734 | "show commands +" does. This is unnecessary if arg is null, | |
1735 | because "show commands +" is not useful after "show commands". */ | |
1736 | if (from_tty && args) | |
1737 | { | |
1738 | args[0] = '+'; | |
1739 | args[1] = '\0'; | |
1740 | } | |
1741 | } | |
1742 | ||
ebfd00d2 | 1743 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1744 | |
ebfd00d2 | 1745 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1746 | |
ebfd00d2 PP |
1747 | static void |
1748 | set_readline_history_size (int history_size) | |
1749 | { | |
1750 | gdb_assert (history_size >= -1); | |
840a9a1f | 1751 | |
ebfd00d2 | 1752 | if (history_size == -1) |
840a9a1f | 1753 | unstifle_history (); |
883b9c6c | 1754 | else |
ebfd00d2 PP |
1755 | stifle_history (history_size); |
1756 | } | |
1757 | ||
1758 | /* Called by do_setshow_command. */ | |
1759 | static void | |
1760 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) | |
1761 | { | |
1762 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1763 | } |
1764 | ||
d318976c | 1765 | void |
fba45db2 | 1766 | set_history (char *args, int from_tty) |
9e0b60a8 | 1767 | { |
3e43a32a MS |
1768 | printf_unfiltered (_("\"set history\" must be followed " |
1769 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1770 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1771 | } |
1772 | ||
d318976c | 1773 | void |
fba45db2 | 1774 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1775 | { |
1776 | cmd_show_list (showhistlist, from_tty, ""); | |
1777 | } | |
1778 | ||
371d5dec | 1779 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1780 | |
1781 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1782 | void |
fba45db2 | 1783 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1784 | { |
6f937416 | 1785 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1786 | struct cmd_list_element *showcmd; |
1787 | ||
1788 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1789 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1790 | |
1791 | if (info_verbose) | |
1792 | { | |
1793 | c->doc = "Set verbose printing of informational messages."; | |
1794 | showcmd->doc = "Show verbose printing of informational messages."; | |
1795 | } | |
1796 | else | |
1797 | { | |
1798 | c->doc = "Set verbosity."; | |
1799 | showcmd->doc = "Show verbosity."; | |
1800 | } | |
1801 | } | |
1802 | ||
9e0b60a8 | 1803 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1804 | have been read so that the user can change the history file via his |
1805 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1806 | overrides all of this. */ | |
9e0b60a8 JM |
1807 | |
1808 | void | |
fba45db2 | 1809 | init_history (void) |
9e0b60a8 JM |
1810 | { |
1811 | char *tmpenv; | |
1812 | ||
b58c513b | 1813 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1814 | if (tmpenv) |
840a9a1f | 1815 | { |
bc460514 | 1816 | long var; |
0fc26caf | 1817 | int saved_errno; |
bc460514 PP |
1818 | char *endptr; |
1819 | ||
1820 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1821 | errno = 0; |
bc460514 | 1822 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1823 | saved_errno = errno; |
bc460514 PP |
1824 | endptr = skip_spaces (endptr); |
1825 | ||
1826 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1827 | empty string, a negative number or a huge positive number (larger than | |
1828 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1829 | history size to the number we have read. This behavior is consistent | |
1830 | with how bash handles HISTSIZE. */ | |
1831 | if (*endptr != '\0') | |
1832 | ; | |
1833 | else if (*tmpenv == '\0' | |
1834 | || var < 0 | |
0fc26caf PP |
1835 | || var > INT_MAX |
1836 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1837 | errno after calling strtol to distinguish between a value that | |
1838 | is exactly INT_MAX and an overflowing value that was clamped | |
1839 | to INT_MAX. */ | |
1840 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1841 | history_size_setshow_var = -1; |
1842 | else | |
1843 | history_size_setshow_var = var; | |
840a9a1f | 1844 | } |
bc460514 PP |
1845 | |
1846 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1847 | default. */ | |
1848 | if (history_size_setshow_var == -2) | |
840a9a1f | 1849 | history_size_setshow_var = 256; |
9e0b60a8 | 1850 | |
ebfd00d2 | 1851 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1852 | |
1853 | tmpenv = getenv ("GDBHISTFILE"); | |
1854 | if (tmpenv) | |
1b36a34b | 1855 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1856 | else if (!history_filename) |
1857 | { | |
1858 | /* We include the current directory so that if the user changes | |
1859 | directories the file written will be the same as the one | |
1860 | that was read. */ | |
a0b3c4fd | 1861 | #ifdef __MSDOS__ |
eb2f494a | 1862 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1863 | history_filename = concat (current_directory, "/_gdb_history", |
1864 | (char *)NULL); | |
a0b3c4fd | 1865 | #else |
1754f103 MK |
1866 | history_filename = concat (current_directory, "/.gdb_history", |
1867 | (char *)NULL); | |
a0b3c4fd | 1868 | #endif |
c5aa993b | 1869 | } |
9e0b60a8 JM |
1870 | read_history (history_filename); |
1871 | } | |
1872 | ||
920d2a44 | 1873 | static void |
ab821bc6 PA |
1874 | show_prompt (struct ui_file *file, int from_tty, |
1875 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1876 | { |
1877 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1878 | } | |
1879 | ||
3c216924 PA |
1880 | /* "set editing" command. */ |
1881 | ||
1882 | static void | |
1883 | set_editing (char *args, int from_tty, struct cmd_list_element *c) | |
1884 | { | |
1885 | change_line_handler (set_editing_cmd_var); | |
1886 | /* Update the control variable so that MI's =cmd-param-changed event | |
1887 | shows the correct value. */ | |
1888 | set_editing_cmd_var = current_ui->command_editing; | |
1889 | } | |
1890 | ||
920d2a44 | 1891 | static void |
3c216924 PA |
1892 | show_editing (struct ui_file *file, int from_tty, |
1893 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 1894 | { |
3e43a32a MS |
1895 | fprintf_filtered (file, _("Editing of command lines as " |
1896 | "they are typed is %s.\n"), | |
3c216924 | 1897 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
1898 | } |
1899 | ||
1900 | static void | |
1901 | show_annotation_level (struct ui_file *file, int from_tty, | |
1902 | struct cmd_list_element *c, const char *value) | |
1903 | { | |
1904 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1905 | } | |
1906 | ||
1907 | static void | |
1908 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1909 | struct cmd_list_element *c, const char *value) | |
1910 | { | |
3e43a32a MS |
1911 | fprintf_filtered (file, _("Notification of completion for " |
1912 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1913 | value); |
1914 | } | |
6dea1fbd | 1915 | |
8d551b02 DE |
1916 | /* New values of the "data-directory" parameter are staged here. */ |
1917 | static char *staged_gdb_datadir; | |
1918 | ||
6dea1fbd JK |
1919 | /* "set" command for the gdb_datadir configuration variable. */ |
1920 | ||
1921 | static void | |
1922 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1923 | { | |
8d551b02 | 1924 | set_gdb_data_directory (staged_gdb_datadir); |
6dea1fbd JK |
1925 | observer_notify_gdb_datadir_changed (); |
1926 | } | |
1927 | ||
8d551b02 DE |
1928 | /* "show" command for the gdb_datadir configuration variable. */ |
1929 | ||
1930 | static void | |
1931 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
1932 | struct cmd_list_element *c, const char *value) | |
1933 | { | |
1934 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
1935 | gdb_datadir); | |
1936 | } | |
1937 | ||
97c85fc6 MB |
1938 | static void |
1939 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
1940 | { | |
1941 | /* We include the current directory so that if the user changes | |
1942 | directories the file written will be the same as the one | |
1943 | that was read. */ | |
1944 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1945 | history_filename = reconcat (history_filename, current_directory, "/", | |
1946 | history_filename, (char *) NULL); | |
1947 | } | |
1948 | ||
9e0b60a8 | 1949 | static void |
fba45db2 | 1950 | init_main (void) |
9e0b60a8 | 1951 | { |
60eb5395 PA |
1952 | struct cmd_list_element *c; |
1953 | ||
ab821bc6 PA |
1954 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1955 | the DEFAULT_PROMPT is. */ | |
1956 | set_prompt (DEFAULT_PROMPT); | |
1957 | ||
9e0b60a8 JM |
1958 | /* Set the important stuff up for command editing. */ |
1959 | command_editing_p = 1; | |
9e0b60a8 | 1960 | history_expansion_p = 0; |
452a569e | 1961 | write_history_p = 0; |
9e0b60a8 JM |
1962 | |
1963 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1964 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 1965 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 1966 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 1967 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 1968 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 1969 | rl_readline_name = "gdb"; |
7cb3ec5e | 1970 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1971 | |
467d8519 TT |
1972 | /* The name for this defun comes from Bash, where it originated. |
1973 | 15 is Control-o, the same binding this function has in Bash. */ | |
1974 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1975 | ||
4d28ad1e | 1976 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 1977 | &top_prompt, |
3e43a32a MS |
1978 | _("Set gdb's prompt"), |
1979 | _("Show gdb's prompt"), | |
ab821bc6 PA |
1980 | NULL, NULL, |
1981 | show_prompt, | |
4d28ad1e | 1982 | &setlist, &showlist); |
9e0b60a8 | 1983 | |
1bedd215 | 1984 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1985 | Don't repeat this command.\nPrimarily \ |
1986 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1987 | hitting return.")); |
9e0b60a8 | 1988 | |
5bf193a2 | 1989 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 1990 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
1991 | Set editing of command lines as they are typed."), _("\ |
1992 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1993 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1994 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 1995 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
1996 | set_editing, |
1997 | show_editing, | |
5bf193a2 AC |
1998 | &setlist, &showlist); |
1999 | ||
2000 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2001 | Set saving of the history record on exit."), _("\ | |
2002 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2003 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2004 | Without an argument, saving is enabled."), |
2005 | NULL, | |
920d2a44 | 2006 | show_write_history_p, |
5bf193a2 | 2007 | &sethistlist, &showhistlist); |
9e0b60a8 | 2008 | |
ebfd00d2 PP |
2009 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2010 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2011 | Set the size of the command history,"), _("\ |
2012 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2013 | ie. the number of previous commands to keep a record of.\n\ |
2014 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2015 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2016 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2017 | set_history_size_command, |
2018 | show_history_size, | |
2019 | &sethistlist, &showhistlist); | |
4d28ad1e | 2020 | |
fc637f04 PP |
2021 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2022 | &history_remove_duplicates, _("\ | |
2023 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2024 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2025 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2026 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2027 | entry, each time a new history entry is added.\n\ | |
2028 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2029 | Only history entries added during this session are considered for removal.\n\ | |
2030 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2031 | By default this option is set to 0."), | |
2032 | NULL, | |
2033 | show_history_remove_duplicates, | |
2034 | &sethistlist, &showhistlist); | |
2035 | ||
4d28ad1e AC |
2036 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2037 | Set the filename in which to record the command history"), _("\ | |
2038 | Show the filename in which to record the command history"), _("\ | |
2039 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2040 | set_history_filename, |
920d2a44 | 2041 | show_history_filename, |
4d28ad1e | 2042 | &sethistlist, &showhistlist); |
9e0b60a8 | 2043 | |
e360902b | 2044 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2045 | Set whether to confirm potentially dangerous operations."), _("\ |
2046 | Show whether to confirm potentially dangerous operations."), NULL, | |
2047 | NULL, | |
e360902b | 2048 | show_confirm, |
5bf193a2 | 2049 | &setlist, &showlist); |
9e0b60a8 | 2050 | |
85c07804 AC |
2051 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2052 | Set annotation_level."), _("\ | |
2053 | Show annotation_level."), _("\ | |
9e0b60a8 | 2054 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2055 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2056 | NULL, |
920d2a44 | 2057 | show_annotation_level, |
85c07804 | 2058 | &setlist, &showlist); |
362646f5 | 2059 | |
5bf193a2 AC |
2060 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2061 | &exec_done_display_p, _("\ | |
2062 | Set notification of completion for asynchronous execution commands."), _("\ | |
2063 | Show notification of completion for asynchronous execution commands."), _("\ | |
2064 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2065 | NULL, | |
920d2a44 | 2066 | show_exec_done_display_p, |
5bf193a2 | 2067 | &setlist, &showlist); |
b14b1491 TT |
2068 | |
2069 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2070 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2071 | _("Show GDB's data directory."), |
2072 | _("\ | |
2073 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2074 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2075 | &setlist, |
2076 | &showlist); | |
268a799a PA |
2077 | |
2078 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2079 | &interactive_mode, _("\ | |
2080 | Set whether GDB's standard input is a terminal."), _("\ | |
2081 | Show whether GDB's standard input is a terminal."), _("\ | |
2082 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2083 | means that GDB should wait for the user to answer queries associated to\n\ | |
2084 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2085 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2086 | If auto (the default), determine which mode to use based on the standard\n\ | |
2087 | input settings."), | |
2088 | NULL, | |
2089 | show_interactive_mode, | |
2090 | &setlist, &showlist); | |
60eb5395 PA |
2091 | |
2092 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2093 | Create a new UI. It takes two arguments:\n\ | |
2094 | The first argument is the name of the interpreter to run.\n\ | |
2095 | The second argument is the terminal the UI runs on.\n"), &cmdlist); | |
2096 | set_cmd_completer (c, interpreter_completer); | |
9e0b60a8 | 2097 | } |
64cdedad EZ |
2098 | |
2099 | void | |
2100 | gdb_init (char *argv0) | |
2101 | { | |
2102 | if (pre_init_ui_hook) | |
2103 | pre_init_ui_hook (); | |
2104 | ||
371d5dec | 2105 | /* Run the init function of each source file. */ |
64cdedad | 2106 | |
64cdedad EZ |
2107 | #ifdef __MSDOS__ |
2108 | /* Make sure we return to the original directory upon exit, come | |
2109 | what may, since the OS doesn't do that for us. */ | |
2110 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2111 | #endif | |
2112 | ||
371d5dec MS |
2113 | init_cmd_lists (); /* This needs to be done first. */ |
2114 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2115 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2116 | |
24b73f8e PP |
2117 | init_page_info (); |
2118 | ||
9dea9163 | 2119 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2120 | initialize_all_files (); |
9dea9163 | 2121 | |
6c95b8df PA |
2122 | /* This creates the current_program_space. Do this after all the |
2123 | _initialize_foo routines have had a chance to install their | |
2124 | per-sspace data keys. Also do this before | |
2125 | initialize_current_architecture is called, because it accesses | |
2126 | exec_bfd of the current program space. */ | |
2127 | initialize_progspace (); | |
2128 | initialize_inferiors (); | |
64cdedad EZ |
2129 | initialize_current_architecture (); |
2130 | init_cli_cmds(); | |
371d5dec | 2131 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2132 | |
0ea3f30e DJ |
2133 | initialize_stdin_serial (); |
2134 | ||
6a06d660 PP |
2135 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2136 | to alter it. */ | |
2137 | set_initial_gdb_ttystate (); | |
2138 | ||
362646f5 | 2139 | async_init_signals (); |
64cdedad | 2140 | |
371d5dec MS |
2141 | /* We need a default language for parsing expressions, so simple |
2142 | things like "set width 0" won't fail if no language is explicitly | |
2143 | set in a config file or implicitly set by reading an executable | |
2144 | during startup. */ | |
64cdedad | 2145 | set_language (language_c); |
371d5dec | 2146 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2147 | |
6dddc817 | 2148 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2149 | installed. For example "info pretty-printer" needs the "info" |
2150 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2151 | script initialization here. */ |
2152 | finish_ext_lang_initialization (); | |
64cdedad | 2153 | } |