Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 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" |
f17517ea | 44 | #include "main.h" |
2e03ee74 | 45 | #include "event-loop.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
6dddc817 | 47 | #include "extension.h" |
b4a14fd0 | 48 | #include "interps.h" |
76727919 | 49 | #include "observable.h" |
bd712aed | 50 | #include "maint.h" |
97c85fc6 | 51 | #include "filenames.h" |
06096720 | 52 | #include "frame.h" |
7a3bde34 | 53 | #include "buffer.h" |
3212b858 | 54 | #include "gdb_select.h" |
c906108c | 55 | |
371d5dec | 56 | /* readline include files. */ |
dbda9972 AC |
57 | #include "readline/readline.h" |
58 | #include "readline/history.h" | |
c906108c SS |
59 | |
60 | /* readline defines this. */ | |
61 | #undef savestring | |
62 | ||
63 | #include <sys/types.h> | |
c906108c | 64 | |
c2c6d25f | 65 | #include "event-top.h" |
53ce3c39 | 66 | #include <sys/stat.h> |
c906108c | 67 | #include <ctype.h> |
8b93c638 JM |
68 | #include "ui-out.h" |
69 | #include "cli-out.h" | |
2f9d54cf | 70 | #include "tracepoint.h" |
93d6eb10 | 71 | #include "inf-loop.h" |
c906108c | 72 | |
18206ca3 PP |
73 | #if defined(TUI) |
74 | # include "tui/tui.h" | |
75 | #endif | |
76 | ||
60eb5395 PA |
77 | #ifndef O_NOCTTY |
78 | # define O_NOCTTY 0 | |
79 | #endif | |
80 | ||
ca7b0bbc TT |
81 | extern void initialize_all_files (void); |
82 | ||
95298e72 PM |
83 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
84 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
85 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
86 | ||
371d5dec | 87 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
88 | |
89 | #ifndef DEFAULT_PROMPT | |
90 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
91 | #endif |
92 | ||
79aa2fe8 PA |
93 | /* Generate a function that exports a pointer to a field of the |
94 | current UI. */ | |
95 | ||
96 | #define gen_ret_current_ui_field_ptr(type, name) \ | |
97 | type * \ | |
98 | current_ui_## name ## _ptr (void) \ | |
99 | { \ | |
100 | return ¤t_ui->m_ ## name; \ | |
101 | } | |
102 | ||
103 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout) | |
104 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin) | |
105 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr) | |
106 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog) | |
b6dcde57 | 107 | gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout) |
79aa2fe8 | 108 | |
e655c1a2 | 109 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 110 | |
e655c1a2 | 111 | const char gdbinit[] = GDBINIT; |
c906108c SS |
112 | |
113 | int inhibit_gdbinit = 0; | |
114 | ||
c906108c SS |
115 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
116 | ||
050a2e1d PA |
117 | /* Flag for whether we want to confirm potentially dangerous |
118 | operations. Default is yes. */ | |
119 | ||
e360902b | 120 | int confirm = 1; |
c906108c | 121 | |
920d2a44 | 122 | static void |
e360902b | 123 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
124 | struct cmd_list_element *c, const char *value) |
125 | { | |
3e43a32a MS |
126 | fprintf_filtered (file, _("Whether to confirm potentially " |
127 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
128 | value); |
129 | } | |
c906108c | 130 | |
c906108c SS |
131 | /* Current working directory. */ |
132 | ||
133 | char *current_directory; | |
134 | ||
2669cade PA |
135 | /* The last command line executed on the console. Used for command |
136 | repetitions. */ | |
dc7eb48e | 137 | char *saved_command_line; |
c906108c SS |
138 | |
139 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 140 | affects things like recording into the command history, commands |
c906108c SS |
141 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
142 | whatever) can issue its own commands and also send along commands | |
143 | from the user, and have the user not notice that the user interface | |
144 | is issuing commands too. */ | |
145 | int server_command; | |
146 | ||
371d5dec | 147 | /* Timeout limit for response from target. */ |
c906108c | 148 | |
ce808e91 AC |
149 | /* The default value has been changed many times over the years. It |
150 | was originally 5 seconds. But that was thought to be a long time | |
151 | to sit and wait, so it was changed to 2 seconds. That was thought | |
152 | to be plenty unless the connection was going through some terminal | |
153 | server or multiplexer or other form of hairy serial connection. | |
154 | ||
155 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
156 | it began being used in other remote-* targets. It appears that the | |
157 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 158 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
159 | |
160 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
161 | 20 seconds is far worse. This demonstrates the difficulty of using | |
162 | a single variable for all protocol timeouts. | |
163 | ||
164 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 165 | back to 2 seconds in 1999. */ |
ce808e91 AC |
166 | |
167 | int remote_timeout = 2; | |
c906108c SS |
168 | |
169 | /* Non-zero tells remote* modules to output debugging info. */ | |
170 | ||
171 | int remote_debug = 0; | |
172 | ||
6dd77b81 RH |
173 | /* Sbrk location on entry to main. Used for statistics only. */ |
174 | #ifdef HAVE_SBRK | |
175 | char *lim_at_start; | |
176 | #endif | |
177 | ||
c906108c SS |
178 | /* Hooks for alternate command interfaces. */ |
179 | ||
371d5dec MS |
180 | /* This hook is called from within gdb's many mini-event loops which |
181 | could steal control from a real user interface's event loop. It | |
182 | returns non-zero if the user is requesting a detach, zero | |
183 | otherwise. */ | |
7a292a7a | 184 | |
98bbd631 | 185 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 186 | |
c906108c | 187 | |
c906108c SS |
188 | /* Called from print_frame_info to list the line we stopped in. */ |
189 | ||
371d5dec MS |
190 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
191 | int line, | |
192 | int stopline, | |
193 | int noerror); | |
c906108c SS |
194 | /* Replaces most of query. */ |
195 | ||
9a4105ab | 196 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
197 | |
198 | /* Replaces most of warning. */ | |
199 | ||
9a4105ab | 200 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 201 | |
9a4105ab AC |
202 | /* These three functions support getting lines of text from the user. |
203 | They are used in sequence. First deprecated_readline_begin_hook is | |
204 | called with a text string that might be (for example) a message for | |
205 | the user to type in a sequence of commands to be executed at a | |
206 | breakpoint. If this function calls back to a GUI, it might take | |
207 | this opportunity to pop up a text interaction window with this | |
208 | message. Next, deprecated_readline_hook is called with a prompt | |
209 | that is emitted prior to collecting the user input. It can be | |
210 | called multiple times. Finally, deprecated_readline_end_hook is | |
211 | called to notify the GUI that we are done with the interaction | |
212 | window and it can close it. */ | |
c906108c | 213 | |
a121b7c1 | 214 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 215 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 216 | void (*deprecated_readline_end_hook) (void); |
c906108c | 217 | |
6426a772 | 218 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 219 | to or detached from an already running process. */ |
6426a772 | 220 | |
9a4105ab AC |
221 | void (*deprecated_attach_hook) (void); |
222 | void (*deprecated_detach_hook) (void); | |
6426a772 | 223 | |
371d5dec MS |
224 | /* Called during long calculations to allow GUI to repair window |
225 | damage, and to check for stop buttons, etc... */ | |
c906108c | 226 | |
9a4105ab | 227 | void (*deprecated_interactive_hook) (void); |
c906108c | 228 | |
371d5dec MS |
229 | /* Called when going to wait for the target. Usually allows the GUI |
230 | to run while waiting for target events. */ | |
c906108c | 231 | |
9a4105ab | 232 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
233 | struct target_waitstatus *status, |
234 | int options); | |
c906108c | 235 | |
371d5dec MS |
236 | /* Used by UI as a wrapper around command execution. May do various |
237 | things like enabling/disabling buttons, etc... */ | |
c906108c | 238 | |
371d5dec | 239 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
95a6b0a1 | 240 | const char *cmd, int from_tty); |
c906108c SS |
241 | |
242 | /* Called when the current thread changes. Argument is thread id. */ | |
243 | ||
9a4105ab | 244 | void (*deprecated_context_hook) (int id); |
c906108c | 245 | |
98d9f24e PA |
246 | /* The highest UI number ever assigned. */ |
247 | static int highest_ui_num; | |
248 | ||
249 | /* See top.h. */ | |
250 | ||
895b8f30 TT |
251 | ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_) |
252 | : next (nullptr), | |
253 | num (++highest_ui_num), | |
254 | call_readline (nullptr), | |
255 | input_handler (nullptr), | |
256 | command_editing (0), | |
257 | interp_info (nullptr), | |
258 | async (0), | |
259 | secondary_prompt_depth (0), | |
260 | stdin_stream (instream_), | |
261 | instream (instream_), | |
262 | outstream (outstream_), | |
263 | errstream (errstream_), | |
264 | input_fd (fileno (instream)), | |
265 | input_interactive_p (ISATTY (instream)), | |
266 | prompt_state (PROMPT_NEEDED), | |
267 | m_gdb_stdout (new stdio_file (outstream)), | |
268 | m_gdb_stdin (new stdio_file (instream)), | |
269 | m_gdb_stderr (new stderr_file (errstream)), | |
270 | m_gdb_stdlog (m_gdb_stderr), | |
271 | m_current_uiout (nullptr) | |
98d9f24e | 272 | { |
895b8f30 | 273 | buffer_init (&line_buffer); |
98d9f24e PA |
274 | |
275 | if (ui_list == NULL) | |
895b8f30 | 276 | ui_list = this; |
98d9f24e PA |
277 | else |
278 | { | |
279 | struct ui *last; | |
280 | ||
281 | for (last = ui_list; last->next != NULL; last = last->next) | |
282 | ; | |
895b8f30 | 283 | last->next = this; |
98d9f24e | 284 | } |
07169ff7 PA |
285 | } |
286 | ||
895b8f30 | 287 | ui::~ui () |
07169ff7 PA |
288 | { |
289 | struct ui *ui, *uiprev; | |
290 | ||
291 | uiprev = NULL; | |
292 | ||
293 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
895b8f30 | 294 | if (ui == this) |
07169ff7 PA |
295 | break; |
296 | ||
297 | gdb_assert (ui != NULL); | |
298 | ||
299 | if (uiprev != NULL) | |
895b8f30 | 300 | uiprev->next = next; |
07169ff7 | 301 | else |
895b8f30 | 302 | ui_list = next; |
07169ff7 | 303 | |
895b8f30 TT |
304 | delete m_gdb_stdin; |
305 | delete m_gdb_stdout; | |
306 | delete m_gdb_stderr; | |
8194e927 SM |
307 | } |
308 | ||
60eb5395 PA |
309 | /* Open file named NAME for read/write, making sure not to make it the |
310 | controlling terminal. */ | |
311 | ||
6e7bc05c | 312 | static gdb_file_up |
60eb5395 PA |
313 | open_terminal_stream (const char *name) |
314 | { | |
315 | int fd; | |
316 | ||
6e7bc05c | 317 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
318 | if (fd < 0) |
319 | perror_with_name (_("opening terminal failed")); | |
320 | ||
6e7bc05c | 321 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
322 | } |
323 | ||
324 | /* Implementation of the "new-ui" command. */ | |
325 | ||
326 | static void | |
32faf971 | 327 | new_ui_command (const char *args, int from_tty) |
60eb5395 | 328 | { |
6e7bc05c | 329 | gdb_file_up stream[3]; |
60eb5395 | 330 | int i; |
60eb5395 | 331 | int argc; |
60eb5395 PA |
332 | const char *interpreter_name; |
333 | const char *tty_name; | |
60eb5395 PA |
334 | |
335 | dont_repeat (); | |
336 | ||
773a1edc TT |
337 | gdb_argv argv (args); |
338 | argc = argv.count (); | |
60eb5395 PA |
339 | |
340 | if (argc < 2) | |
341 | error (_("usage: new-ui <interpreter> <tty>")); | |
342 | ||
343 | interpreter_name = argv[0]; | |
344 | tty_name = argv[1]; | |
345 | ||
4b6749b9 TT |
346 | { |
347 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 348 | |
4b6749b9 TT |
349 | /* Open specified terminal, once for each of |
350 | stdin/stdout/stderr. */ | |
351 | for (i = 0; i < 3; i++) | |
6e7bc05c | 352 | stream[i] = open_terminal_stream (tty_name); |
60eb5395 | 353 | |
895b8f30 TT |
354 | std::unique_ptr<ui> ui |
355 | (new struct ui (stream[0].get (), stream[1].get (), stream[2].get ())); | |
60eb5395 | 356 | |
4b6749b9 | 357 | ui->async = 1; |
60eb5395 | 358 | |
895b8f30 | 359 | current_ui = ui.get (); |
60eb5395 | 360 | |
4b6749b9 | 361 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 362 | |
4b6749b9 | 363 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 364 | |
6e7bc05c TT |
365 | /* Make sure the files are not closed. */ |
366 | stream[0].release (); | |
367 | stream[1].release (); | |
368 | stream[2].release (); | |
369 | ||
895b8f30 | 370 | ui.release (); |
4b6749b9 | 371 | } |
60eb5395 PA |
372 | |
373 | printf_unfiltered ("New UI allocated\n"); | |
374 | } | |
375 | ||
c906108c SS |
376 | /* Handler for SIGHUP. */ |
377 | ||
378 | #ifdef SIGHUP | |
392a587b | 379 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 380 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 381 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
382 | /* static */ void |
383 | quit_cover (void) | |
c906108c | 384 | { |
e360902b PA |
385 | /* Stop asking user for confirmation --- we're exiting. This |
386 | prevents asking the user dumb questions. */ | |
387 | confirm = 0; | |
c5aa993b | 388 | quit_command ((char *) 0, 0); |
c906108c SS |
389 | } |
390 | #endif /* defined SIGHUP */ | |
391 | \f | |
7a9dd1b2 | 392 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 393 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 394 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 395 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 396 | /* static */ int source_line_number; |
c906108c SS |
397 | |
398 | /* Name of the file we are sourcing. */ | |
392a587b | 399 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 400 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 401 | event-top.c into this file, top.c. */ |
05159abe | 402 | /* static */ const char *source_file_name; |
c906108c | 403 | |
c906108c SS |
404 | /* Read commands from STREAM. */ |
405 | void | |
fba45db2 | 406 | read_command_file (FILE *stream) |
c906108c | 407 | { |
f38d3ad1 | 408 | struct ui *ui = current_ui; |
c906108c | 409 | |
3c9ebddd TT |
410 | scoped_restore save_instream |
411 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
412 | |
413 | /* Read commands from `instream' and execute them until end of file | |
414 | or error reading instream. */ | |
415 | ||
f38d3ad1 | 416 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
417 | { |
418 | char *command; | |
419 | ||
420 | /* Get a command-line. This calls the readline package. */ | |
421 | command = command_line_input (NULL, 0, NULL); | |
422 | if (command == NULL) | |
423 | break; | |
424 | command_handler (command); | |
425 | } | |
c906108c SS |
426 | } |
427 | \f | |
507f3c78 | 428 | void (*pre_init_ui_hook) (void); |
c906108c | 429 | |
e41a3b1a | 430 | #ifdef __MSDOS__ |
70976b65 | 431 | static void |
e41a3b1a AC |
432 | do_chdir_cleanup (void *old_dir) |
433 | { | |
f515a1d6 | 434 | chdir ((const char *) old_dir); |
b8c9b27d | 435 | xfree (old_dir); |
e41a3b1a AC |
436 | } |
437 | #endif | |
438 | ||
54f70bc1 TT |
439 | scoped_value_mark |
440 | prepare_execute_command () | |
4e5d721f | 441 | { |
371d5dec MS |
442 | /* With multiple threads running while the one we're examining is |
443 | stopped, the dcache can get stale without us being able to detect | |
444 | it. For the duration of the command, though, use the dcache to | |
445 | help things like backtrace. */ | |
4e5d721f DE |
446 | if (non_stop) |
447 | target_dcache_invalidate (); | |
028d0ed5 | 448 | |
54f70bc1 | 449 | return scoped_value_mark (); |
4e5d721f DE |
450 | } |
451 | ||
77cce10f PA |
452 | /* Tell the user if the language has changed (except first time) after |
453 | executing a command. */ | |
454 | ||
455 | void | |
456 | check_frame_language_change (void) | |
457 | { | |
458 | static int warned = 0; | |
7ff38b1c | 459 | struct frame_info *frame; |
77cce10f PA |
460 | |
461 | /* First make sure that a new frame has been selected, in case the | |
462 | command or the hooks changed the program state. */ | |
7ff38b1c | 463 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
464 | if (current_language != expected_language) |
465 | { | |
466 | if (language_mode == language_mode_auto && info_verbose) | |
467 | { | |
468 | language_info (1); /* Print what changed. */ | |
469 | } | |
470 | warned = 0; | |
471 | } | |
472 | ||
473 | /* Warn the user if the working language does not match the language | |
474 | of the current frame. Only warn the user if we are actually | |
475 | running the program, i.e. there is a stack. */ | |
476 | /* FIXME: This should be cacheing the frame and only running when | |
477 | the frame changes. */ | |
478 | ||
479 | if (has_stack_frames ()) | |
480 | { | |
481 | enum language flang; | |
482 | ||
7ff38b1c | 483 | flang = get_frame_language (frame); |
77cce10f PA |
484 | if (!warned |
485 | && flang != language_unknown | |
486 | && flang != current_language->la_language) | |
487 | { | |
488 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
489 | warned = 1; | |
490 | } | |
491 | } | |
492 | } | |
493 | ||
98880d46 PA |
494 | /* See top.h. */ |
495 | ||
0b333c5e PA |
496 | void |
497 | wait_sync_command_done (void) | |
498 | { | |
4295e285 | 499 | /* Processing events may change the current UI. */ |
4b6749b9 | 500 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
501 | struct ui *ui = current_ui; |
502 | ||
0b333c5e | 503 | while (gdb_do_one_event () >= 0) |
4295e285 | 504 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
505 | break; |
506 | } | |
507 | ||
508 | /* See top.h. */ | |
509 | ||
98880d46 PA |
510 | void |
511 | maybe_wait_sync_command_done (int was_sync) | |
512 | { | |
513 | /* If the interpreter is in sync mode (we're running a user | |
514 | command's list, running command hooks or similars), and we | |
515 | just ran a synchronous command that started the target, wait | |
516 | for that command to end. */ | |
3b12939d PA |
517 | if (!current_ui->async |
518 | && !was_sync | |
519 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 520 | wait_sync_command_done (); |
98880d46 PA |
521 | } |
522 | ||
85c4be7c TT |
523 | /* If not NULL, the arguments that should be passed if the current |
524 | command is repeated. */ | |
525 | ||
526 | static const char *repeat_arguments; | |
527 | ||
528 | /* See command.h. */ | |
529 | ||
530 | void | |
531 | set_repeat_arguments (const char *args) | |
532 | { | |
533 | repeat_arguments = args; | |
534 | } | |
535 | ||
648bf667 | 536 | /* Execute the line P as a command, in the current user context. |
d318976c | 537 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 538 | |
d318976c | 539 | void |
95a6b0a1 | 540 | execute_command (const char *p, int from_tty) |
c906108c | 541 | { |
54f70bc1 | 542 | struct cleanup *cleanup_if_error; |
52f0bd74 | 543 | struct cmd_list_element *c; |
95a6b0a1 TT |
544 | const char *line; |
545 | const char *cmd_start = p; | |
4e5d721f | 546 | |
353d1d73 | 547 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
54f70bc1 | 548 | scoped_value_mark cleanup = prepare_execute_command (); |
c906108c | 549 | |
d318976c FN |
550 | /* Force cleanup of any alloca areas if using C alloca instead of |
551 | a builtin alloca. */ | |
552 | alloca (0); | |
c906108c | 553 | |
d318976c FN |
554 | /* This can happen when command_line_input hits end of file. */ |
555 | if (p == NULL) | |
5fe41fbf | 556 | { |
5ae85e44 | 557 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
558 | return; |
559 | } | |
c906108c | 560 | |
49d03eab | 561 | target_log_command (p); |
8b93c638 | 562 | |
d318976c FN |
563 | while (*p == ' ' || *p == '\t') |
564 | p++; | |
565 | if (*p) | |
8b93c638 | 566 | { |
6f937416 | 567 | const char *cmd = p; |
95a6b0a1 | 568 | const char *arg; |
3b12939d | 569 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 570 | |
d318976c | 571 | line = p; |
8b93c638 | 572 | |
16026cd7 | 573 | /* If trace-commands is set then this will print this command. */ |
1263a9d5 | 574 | print_command_trace ("%s", p); |
16026cd7 | 575 | |
6f937416 | 576 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
95a6b0a1 | 577 | p = cmd; |
8b93c638 | 578 | |
85c4be7c TT |
579 | scoped_restore save_repeat_args |
580 | = make_scoped_restore (&repeat_arguments, nullptr); | |
95a6b0a1 | 581 | const char *args_pointer = p; |
85c4be7c | 582 | |
d318976c FN |
583 | /* Pass null arg rather than an empty one. */ |
584 | arg = *p ? p : 0; | |
8b93c638 | 585 | |
9f60d481 AC |
586 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
587 | while the is_complete_command(cfunc) test is just plain | |
588 | bogus. They should both be replaced by a test of the form | |
589 | c->strip_trailing_white_space_p. */ | |
590 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
591 | can't be replaced with func. This is because it is the | |
592 | cfunc, and not the func, that has the value that the | |
593 | is_complete_command hack is testing for. */ | |
594 | /* Clear off trailing whitespace, except for set and complete | |
595 | command. */ | |
95a6b0a1 | 596 | std::string without_whitespace; |
d318976c FN |
597 | if (arg |
598 | && c->type != set_cmd | |
bbaca940 | 599 | && !is_complete_command (c)) |
8b93c638 | 600 | { |
95a6b0a1 TT |
601 | const char *old_end = arg + strlen (arg) - 1; |
602 | p = old_end; | |
d318976c FN |
603 | while (p >= arg && (*p == ' ' || *p == '\t')) |
604 | p--; | |
95a6b0a1 TT |
605 | if (p != old_end) |
606 | { | |
607 | without_whitespace = std::string (arg, p + 1); | |
608 | arg = without_whitespace.c_str (); | |
609 | } | |
8b93c638 JM |
610 | } |
611 | ||
371d5dec | 612 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 613 | execute_cmd_pre_hook (c); |
c906108c | 614 | |
1f2bdf09 | 615 | if (c->deprecated_warn_user) |
6f937416 | 616 | deprecated_cmd_warning (line); |
c906108c | 617 | |
7d74f244 | 618 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 619 | if (c->theclass == class_user && c->user_commands) |
d318976c | 620 | execute_user_command (c, arg); |
5b9afe8a YQ |
621 | else if (c->type == set_cmd) |
622 | do_set_command (arg, from_tty, c); | |
623 | else if (c->type == show_cmd) | |
624 | do_show_command (arg, from_tty, c); | |
f436dd25 | 625 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 626 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 627 | else if (deprecated_call_command_hook) |
050a2e1d | 628 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 629 | else |
050a2e1d | 630 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 631 | |
98880d46 | 632 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 633 | |
371d5dec | 634 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 635 | execute_cmd_post_hook (c); |
c906108c | 636 | |
95a6b0a1 | 637 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
638 | { |
639 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
640 | strcpy (saved_command_line + (args_pointer - cmd_start), |
641 | repeat_arguments); | |
85c4be7c | 642 | } |
c906108c SS |
643 | } |
644 | ||
0ca1fc29 JB |
645 | /* Only perform the frame-language-change check if the command |
646 | we just finished executing did not resume the inferior's execution. | |
647 | If it did resume the inferior, we will do that check after | |
648 | the inferior stopped. */ | |
649 | if (has_stack_frames () && !is_running (inferior_ptid)) | |
650 | check_frame_language_change (); | |
028d0ed5 | 651 | |
353d1d73 | 652 | discard_cleanups (cleanup_if_error); |
c906108c SS |
653 | } |
654 | ||
5da1313b JK |
655 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
656 | returned string, do not display it to the screen. BATCH_FLAG will be | |
657 | temporarily set to true. */ | |
658 | ||
db1ec11f | 659 | std::string |
95a6b0a1 | 660 | execute_command_to_string (const char *p, int from_tty) |
5da1313b | 661 | { |
5da1313b JK |
662 | /* GDB_STDOUT should be better already restored during these |
663 | restoration callbacks. */ | |
b95de2b7 | 664 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 665 | |
b7b633e9 | 666 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 667 | |
d7e74731 | 668 | string_file str_file; |
5da1313b | 669 | |
ca5909c7 TT |
670 | { |
671 | current_uiout->redirect (&str_file); | |
672 | ui_out_redirect_pop redirect_popper (current_uiout); | |
673 | ||
674 | scoped_restore save_stdout | |
675 | = make_scoped_restore (&gdb_stdout, &str_file); | |
676 | scoped_restore save_stderr | |
677 | = make_scoped_restore (&gdb_stderr, &str_file); | |
678 | scoped_restore save_stdlog | |
679 | = make_scoped_restore (&gdb_stdlog, &str_file); | |
680 | scoped_restore save_stdtarg | |
681 | = make_scoped_restore (&gdb_stdtarg, &str_file); | |
682 | scoped_restore save_stdtargerr | |
683 | = make_scoped_restore (&gdb_stdtargerr, &str_file); | |
684 | ||
685 | execute_command (p, from_tty); | |
686 | } | |
5da1313b | 687 | |
d7e74731 | 688 | return std::move (str_file.string ()); |
5da1313b JK |
689 | } |
690 | ||
d318976c | 691 | \f |
47a80e90 TT |
692 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
693 | set via prevent_dont_repeat. */ | |
694 | ||
695 | static int suppress_dont_repeat = 0; | |
696 | ||
d318976c | 697 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 698 | |
d318976c FN |
699 | void |
700 | dont_repeat (void) | |
9e0b60a8 | 701 | { |
f38d3ad1 PA |
702 | struct ui *ui = current_ui; |
703 | ||
47a80e90 | 704 | if (suppress_dont_repeat || server_command) |
d318976c | 705 | return; |
9e0b60a8 | 706 | |
d318976c | 707 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
708 | thing read from stdin in line and don't want to delete it. Null |
709 | lines won't repeat here in any case. */ | |
268a799a | 710 | if (ui->instream == ui->stdin_stream) |
dc7eb48e | 711 | *saved_command_line = 0; |
9e0b60a8 | 712 | } |
47a80e90 TT |
713 | |
714 | /* Prevent dont_repeat from working, and return a cleanup that | |
715 | restores the previous state. */ | |
716 | ||
1ac32117 | 717 | scoped_restore_tmpl<int> |
47a80e90 TT |
718 | prevent_dont_repeat (void) |
719 | { | |
1ac32117 | 720 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
721 | } |
722 | ||
d318976c FN |
723 | \f |
724 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 725 | |
7a3bde34 | 726 | It prints PROMPT once at the start. |
d318976c FN |
727 | Action is compatible with "readline", e.g. space for the result is |
728 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 729 | |
d318976c | 730 | A NULL return means end of file. */ |
c5c136ea PA |
731 | |
732 | static char * | |
7a3bde34 | 733 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 734 | { |
7a3bde34 | 735 | struct buffer line_buffer; |
f38d3ad1 | 736 | struct ui *ui = current_ui; |
3212b858 PA |
737 | /* Read from stdin if we are executing a user defined command. This |
738 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 739 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 740 | int fd = fileno (stream); |
9e0b60a8 | 741 | |
7a3bde34 PA |
742 | buffer_init (&line_buffer); |
743 | ||
744 | if (prompt != NULL) | |
9e0b60a8 | 745 | { |
d318976c FN |
746 | /* Don't use a _filtered function here. It causes the assumed |
747 | character position to be off, since the newline we read from | |
748 | the user is not accounted for. */ | |
7a3bde34 | 749 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
750 | gdb_flush (gdb_stdout); |
751 | } | |
752 | ||
9e0b60a8 JM |
753 | while (1) |
754 | { | |
7a3bde34 | 755 | int c; |
3212b858 | 756 | fd_set readfds; |
7a3bde34 | 757 | |
3212b858 PA |
758 | QUIT; |
759 | ||
760 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 761 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
762 | FD_ZERO (&readfds); |
763 | FD_SET (fd, &readfds); | |
f0881b37 | 764 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
765 | { |
766 | if (errno == EINTR) | |
767 | { | |
768 | /* If this was ctrl-c, the QUIT above handles it. */ | |
769 | continue; | |
770 | } | |
771 | perror_with_name (("select")); | |
772 | } | |
773 | ||
774 | c = fgetc (stream); | |
9e0b60a8 | 775 | |
d318976c | 776 | if (c == EOF) |
9e0b60a8 | 777 | { |
7a3bde34 | 778 | if (line_buffer.used_size > 0) |
d318976c FN |
779 | /* The last line does not end with a newline. Return it, and |
780 | if we are called again fgetc will still return EOF and | |
781 | we'll return NULL then. */ | |
9e0b60a8 | 782 | break; |
7a3bde34 | 783 | xfree (buffer_finish (&line_buffer)); |
d318976c | 784 | return NULL; |
9e0b60a8 | 785 | } |
c5aa993b | 786 | |
d318976c | 787 | if (c == '\n') |
9e0b60a8 | 788 | { |
7a3bde34 PA |
789 | if (line_buffer.used_size > 0 |
790 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
791 | line_buffer.used_size--; | |
d318976c | 792 | break; |
9e0b60a8 | 793 | } |
9e0b60a8 | 794 | |
7a3bde34 | 795 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
796 | } |
797 | ||
7a3bde34 PA |
798 | buffer_grow_char (&line_buffer, '\0'); |
799 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
800 | } |
801 | ||
d318976c FN |
802 | /* Variables which control command line editing and history |
803 | substitution. These variables are given default values at the end | |
804 | of this file. */ | |
805 | static int command_editing_p; | |
920d2a44 | 806 | |
d318976c FN |
807 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
808 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 809 | event-top.c into this file, top.c. */ |
920d2a44 | 810 | |
d318976c | 811 | /* static */ int history_expansion_p; |
920d2a44 | 812 | |
d318976c | 813 | static int write_history_p; |
920d2a44 AC |
814 | static void |
815 | show_write_history_p (struct ui_file *file, int from_tty, | |
816 | struct cmd_list_element *c, const char *value) | |
817 | { | |
818 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
819 | value); | |
820 | } | |
821 | ||
840a9a1f | 822 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
823 | command. The value -1 means unlimited, and -2 means undefined. */ |
824 | static int history_size_setshow_var = -2; | |
840a9a1f | 825 | |
920d2a44 AC |
826 | static void |
827 | show_history_size (struct ui_file *file, int from_tty, | |
828 | struct cmd_list_element *c, const char *value) | |
829 | { | |
830 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
831 | value); | |
832 | } | |
833 | ||
fc637f04 PP |
834 | /* Variable associated with the "history remove-duplicates" option. |
835 | The value -1 means unlimited. */ | |
836 | static int history_remove_duplicates = 0; | |
837 | ||
838 | static void | |
839 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
840 | struct cmd_list_element *c, const char *value) | |
841 | { | |
842 | fprintf_filtered (file, | |
843 | _("The number of history entries to look back at for " | |
844 | "duplicates is %s.\n"), | |
845 | value); | |
846 | } | |
847 | ||
d318976c | 848 | static char *history_filename; |
920d2a44 AC |
849 | static void |
850 | show_history_filename (struct ui_file *file, int from_tty, | |
851 | struct cmd_list_element *c, const char *value) | |
852 | { | |
3e43a32a MS |
853 | fprintf_filtered (file, _("The filename in which to record " |
854 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
855 | value); |
856 | } | |
9e0b60a8 | 857 | |
b4f5539f | 858 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 859 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
860 | a single gdb invocation. At the ordinary top-level prompt we might |
861 | be using the async readline. That means we can't use | |
862 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
863 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
864 | `define'), gdb wants a synchronous response. |
865 | ||
866 | We used to call readline() directly, running it in synchronous | |
867 | mode. But mixing modes this way is not supported, and as of | |
868 | readline 5.x it no longer works; the arrow keys come unbound during | |
869 | the synchronous call. So we make a nested call into the event | |
870 | loop. That's what gdb_readline_wrapper is for. */ | |
871 | ||
872 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
873 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
874 | the user types Control-D for EOF. */ | |
875 | static int gdb_readline_wrapper_done; | |
876 | ||
877 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
878 | is seen. */ | |
879 | static char *gdb_readline_wrapper_result; | |
880 | ||
881 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
882 | to be called after the newline is processed (which will redisplay | |
883 | the prompt). But in gdb_readline_wrapper we will not get a new | |
884 | prompt until the next call, or until we return to the event loop. | |
885 | So we disable this hook around the newline and restore it before we | |
886 | return. */ | |
887 | static void (*saved_after_char_processing_hook) (void); | |
888 | ||
948578a9 | 889 | |
948578a9 PP |
890 | /* See top.h. */ |
891 | ||
892 | int | |
dbf30ca3 | 893 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 894 | { |
dbf30ca3 | 895 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
896 | } |
897 | ||
898 | ||
2e03ee74 DJ |
899 | /* This function is called when readline has seen a complete line of |
900 | text. */ | |
901 | ||
902 | static void | |
903 | gdb_readline_wrapper_line (char *line) | |
904 | { | |
905 | gdb_assert (!gdb_readline_wrapper_done); | |
906 | gdb_readline_wrapper_result = line; | |
907 | gdb_readline_wrapper_done = 1; | |
908 | ||
909 | /* Prevent operate-and-get-next from acting too early. */ | |
910 | saved_after_char_processing_hook = after_char_processing_hook; | |
911 | after_char_processing_hook = NULL; | |
1b05479a DJ |
912 | |
913 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 914 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
915 | reinstall the callback handler, which puts the terminal in raw |
916 | mode (or in readline lingo, in prepped state), when we're next | |
917 | ready to process user input, either in display_gdb_prompt, or if | |
918 | we're handling an asynchronous target event and running in the | |
919 | background, just before returning to the event loop to process | |
920 | further input (or more target events). */ | |
3c216924 | 921 | if (current_ui->command_editing) |
d3d4baed | 922 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
923 | } |
924 | ||
1dbeed45 | 925 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 926 | { |
1dbeed45 TT |
927 | public: |
928 | gdb_readline_wrapper_cleanup () | |
929 | : m_handler_orig (current_ui->input_handler), | |
930 | m_already_prompted_orig (current_ui->command_editing | |
931 | ? rl_already_prompted : 0), | |
932 | m_target_is_async_orig (target_is_async_p ()), | |
933 | m_save_ui (¤t_ui) | |
934 | { | |
935 | current_ui->input_handler = gdb_readline_wrapper_line; | |
936 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 937 | |
1dbeed45 TT |
938 | if (m_target_is_async_orig) |
939 | target_async (0); | |
940 | } | |
2e03ee74 | 941 | |
1dbeed45 TT |
942 | ~gdb_readline_wrapper_cleanup () |
943 | { | |
944 | struct ui *ui = current_ui; | |
0017922d | 945 | |
1dbeed45 TT |
946 | if (ui->command_editing) |
947 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 948 | |
1dbeed45 TT |
949 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
950 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 951 | |
1dbeed45 TT |
952 | /* Don't restore our input handler in readline yet. That would make |
953 | readline prep the terminal (putting it in raw mode), while the | |
954 | line we just read may trigger execution of a command that expects | |
955 | the terminal in the default cooked/canonical mode, such as e.g., | |
956 | running Python's interactive online help utility. See | |
957 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 958 | |
1dbeed45 TT |
959 | gdb_readline_wrapper_result = NULL; |
960 | gdb_readline_wrapper_done = 0; | |
961 | ui->secondary_prompt_depth--; | |
962 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 963 | |
1dbeed45 TT |
964 | after_char_processing_hook = saved_after_char_processing_hook; |
965 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 966 | |
1dbeed45 TT |
967 | if (m_target_is_async_orig) |
968 | target_async (1); | |
969 | } | |
2e03ee74 | 970 | |
1dbeed45 | 971 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 972 | |
1dbeed45 | 973 | private: |
2e03ee74 | 974 | |
1dbeed45 TT |
975 | void (*m_handler_orig) (char *); |
976 | int m_already_prompted_orig; | |
93d6eb10 | 977 | |
1dbeed45 TT |
978 | /* Whether the target was async. */ |
979 | int m_target_is_async_orig; | |
2e03ee74 | 980 | |
4295e285 | 981 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
982 | scoped_restore_tmpl<struct ui *> m_save_ui; |
983 | }; | |
984 | ||
985 | char * | |
986 | gdb_readline_wrapper (const char *prompt) | |
987 | { | |
988 | struct ui *ui = current_ui; | |
4295e285 | 989 | |
1dbeed45 | 990 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 991 | |
6e5d74e7 PA |
992 | /* Display our prompt and prevent double prompt display. Don't pass |
993 | down a NULL prompt, since that has special meaning for | |
994 | display_gdb_prompt -- it indicates a request to print the primary | |
995 | prompt, while we want a secondary prompt here. */ | |
996 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
997 | if (ui->command_editing) |
998 | rl_already_prompted = 1; | |
2e03ee74 | 999 | |
362646f5 | 1000 | if (after_char_processing_hook) |
2e03ee74 DJ |
1001 | (*after_char_processing_hook) (); |
1002 | gdb_assert (after_char_processing_hook == NULL); | |
1003 | ||
e0dd0826 | 1004 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1005 | if (gdb_readline_wrapper_done) |
1006 | break; | |
b4f5539f | 1007 | |
1dbeed45 | 1008 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1009 | } |
1010 | ||
9e0b60a8 | 1011 | \f |
467d8519 TT |
1012 | /* The current saved history number from operate-and-get-next. |
1013 | This is -1 if not valid. */ | |
1014 | static int operate_saved_history = -1; | |
1015 | ||
1016 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1017 | do its work. */ | |
b9362cc7 | 1018 | static void |
5ae5f592 | 1019 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1020 | { |
1021 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1022 | |
467d8519 TT |
1023 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1024 | rl_get_previous_history (delta, 0); | |
1025 | operate_saved_history = -1; | |
1026 | ||
1027 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1028 | rl_redisplay (); |
467d8519 TT |
1029 | |
1030 | after_char_processing_hook = NULL; | |
1031 | rl_pre_input_hook = NULL; | |
1032 | } | |
1033 | ||
1034 | /* This is a gdb-local readline command handler. It accepts the | |
1035 | current command line (like RET does) and, if this command was taken | |
1036 | from the history, arranges for the next command in the history to | |
1037 | appear on the command line when the prompt returns. | |
1038 | We ignore the arguments. */ | |
1039 | static int | |
1040 | gdb_rl_operate_and_get_next (int count, int key) | |
1041 | { | |
b5686e99 MK |
1042 | int where; |
1043 | ||
362646f5 AC |
1044 | /* Use the async hook. */ |
1045 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1046 | |
b5686e99 MK |
1047 | /* Find the current line, and find the next line to use. */ |
1048 | where = where_history(); | |
1049 | ||
1fb2e2b5 PA |
1050 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1051 | || (where >= history_length - 1)) | |
b5686e99 MK |
1052 | operate_saved_history = where; |
1053 | else | |
1054 | operate_saved_history = where + 1; | |
1055 | ||
467d8519 TT |
1056 | return rl_newline (1, key); |
1057 | } | |
08b13bdd PP |
1058 | |
1059 | /* Number of user commands executed during this session. */ | |
1060 | ||
1061 | static int command_count = 0; | |
1062 | ||
1063 | /* Add the user command COMMAND to the input history list. */ | |
1064 | ||
1065 | void | |
1066 | gdb_add_history (const char *command) | |
1067 | { | |
08b13bdd | 1068 | command_count++; |
fc637f04 PP |
1069 | |
1070 | if (history_remove_duplicates != 0) | |
1071 | { | |
1072 | int lookbehind; | |
1073 | int lookbehind_threshold; | |
1074 | ||
1075 | /* The lookbehind threshold for finding a duplicate history entry is | |
1076 | bounded by command_count because we can't meaningfully delete | |
1077 | history entries that are already stored in the history file since | |
1078 | the history file is appended to. */ | |
1079 | if (history_remove_duplicates == -1 | |
1080 | || history_remove_duplicates > command_count) | |
1081 | lookbehind_threshold = command_count; | |
1082 | else | |
1083 | lookbehind_threshold = history_remove_duplicates; | |
1084 | ||
1085 | using_history (); | |
1086 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1087 | { | |
1088 | HIST_ENTRY *temp = previous_history (); | |
1089 | ||
1090 | if (temp == NULL) | |
1091 | break; | |
1092 | ||
1093 | if (strcmp (temp->line, command) == 0) | |
1094 | { | |
1095 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1096 | command_count--; | |
1097 | free_history_entry (prev); | |
1098 | break; | |
1099 | } | |
1100 | } | |
1101 | using_history (); | |
1102 | } | |
1103 | ||
1104 | add_history (command); | |
08b13bdd PP |
1105 | } |
1106 | ||
1107 | /* Safely append new history entries to the history file in a corruption-free | |
1108 | way using an intermediate local history file. */ | |
1109 | ||
1110 | static void | |
1111 | gdb_safe_append_history (void) | |
1112 | { | |
1113 | int ret, saved_errno; | |
08b13bdd | 1114 | |
8cff8730 TT |
1115 | std::string local_history_filename |
1116 | = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ()); | |
08b13bdd | 1117 | |
8cff8730 | 1118 | ret = rename (history_filename, local_history_filename.c_str ()); |
08b13bdd PP |
1119 | saved_errno = errno; |
1120 | if (ret < 0 && saved_errno != ENOENT) | |
1121 | { | |
1122 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1123 | history_filename, local_history_filename.c_str (), |
08b13bdd PP |
1124 | safe_strerror (saved_errno)); |
1125 | } | |
1126 | else | |
1127 | { | |
1128 | if (ret < 0) | |
1129 | { | |
1130 | /* If the rename failed with ENOENT then either the global history | |
1131 | file never existed in the first place or another GDB process is | |
1132 | currently appending to it (and has thus temporarily renamed it). | |
1133 | Since we can't distinguish between these two cases, we have to | |
1134 | conservatively assume the first case and therefore must write out | |
1135 | (not append) our known history to our local history file and try | |
1136 | to move it back anyway. Otherwise a global history file would | |
1137 | never get created! */ | |
1138 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1139 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1140 | } |
1141 | else | |
1142 | { | |
8cff8730 | 1143 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1144 | if (history_is_stifled ()) |
8cff8730 TT |
1145 | history_truncate_file (local_history_filename.c_str (), |
1146 | history_max_entries); | |
08b13bdd PP |
1147 | } |
1148 | ||
8cff8730 | 1149 | ret = rename (local_history_filename.c_str (), history_filename); |
08b13bdd PP |
1150 | saved_errno = errno; |
1151 | if (ret < 0 && saved_errno != EEXIST) | |
1152 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1153 | local_history_filename.c_str (), history_filename, |
08b13bdd PP |
1154 | safe_strerror (saved_errno)); |
1155 | } | |
08b13bdd PP |
1156 | } |
1157 | ||
b69d38af PA |
1158 | /* Read one line from the command input stream `instream' into a local |
1159 | static buffer. The buffer is made bigger as necessary. Returns | |
1160 | the address of the start of the line. | |
9e0b60a8 | 1161 | |
d318976c | 1162 | NULL is returned for end of file. |
9e0b60a8 | 1163 | |
268a799a | 1164 | *If* input is from an interactive stream (stdin), the line read is |
b69d38af PA |
1165 | copied into the global 'saved_command_line' so that it can be |
1166 | repeated. | |
9e0b60a8 | 1167 | |
b69d38af PA |
1168 | This routine either uses fancy command line editing or simple input |
1169 | as the user has requested. */ | |
10689f25 | 1170 | |
d318976c | 1171 | char * |
a121b7c1 PA |
1172 | command_line_input (const char *prompt_arg, int repeat, |
1173 | const char *annotation_suffix) | |
9e0b60a8 | 1174 | { |
b69d38af PA |
1175 | static struct buffer cmd_line_buffer; |
1176 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1177 | struct ui *ui = current_ui; |
38bcc89d | 1178 | const char *prompt = prompt_arg; |
b69d38af | 1179 | char *cmd; |
268a799a | 1180 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1181 | |
1182 | /* The annotation suffix must be non-NULL. */ | |
1183 | if (annotation_suffix == NULL) | |
1184 | annotation_suffix = ""; | |
9e0b60a8 | 1185 | |
268a799a | 1186 | if (from_tty && annotation_level > 1) |
d318976c | 1187 | { |
38bcc89d SM |
1188 | char *local_prompt; |
1189 | ||
224c3ddb SM |
1190 | local_prompt |
1191 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1192 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1193 | if (prompt == NULL) |
d318976c FN |
1194 | local_prompt[0] = '\0'; |
1195 | else | |
38bcc89d | 1196 | strcpy (local_prompt, prompt); |
d318976c FN |
1197 | strcat (local_prompt, "\n\032\032"); |
1198 | strcat (local_prompt, annotation_suffix); | |
1199 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1200 | |
1201 | prompt = local_prompt; | |
d318976c | 1202 | } |
9e0b60a8 | 1203 | |
b69d38af | 1204 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1205 | { |
b69d38af PA |
1206 | buffer_init (&cmd_line_buffer); |
1207 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1208 | } |
9e0b60a8 | 1209 | |
b69d38af PA |
1210 | /* Starting a new command line. */ |
1211 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1212 | |
6aa899ce | 1213 | #ifdef SIGTSTP |
d318976c | 1214 | if (job_control) |
6aa899ce | 1215 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1216 | #endif |
1217 | ||
1218 | while (1) | |
9e0b60a8 | 1219 | { |
b69d38af PA |
1220 | char *rl; |
1221 | ||
371d5dec MS |
1222 | /* Make sure that all output has been output. Some machines may |
1223 | let you get away with leaving out some of the gdb_flush, but | |
1224 | not all. */ | |
d318976c FN |
1225 | wrap_here (""); |
1226 | gdb_flush (gdb_stdout); | |
1227 | gdb_flush (gdb_stderr); | |
1228 | ||
1229 | if (source_file_name != NULL) | |
637537d0 | 1230 | ++source_line_number; |
d318976c | 1231 | |
268a799a | 1232 | if (from_tty && annotation_level > 1) |
d318976c | 1233 | { |
306d9ac5 DC |
1234 | puts_unfiltered ("\n\032\032pre-"); |
1235 | puts_unfiltered (annotation_suffix); | |
1236 | puts_unfiltered ("\n"); | |
d318976c FN |
1237 | } |
1238 | ||
1239 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1240 | if (deprecated_readline_hook |
1241 | && from_tty | |
1242 | && input_interactive_p (current_ui)) | |
d318976c | 1243 | { |
38bcc89d | 1244 | rl = (*deprecated_readline_hook) (prompt); |
d318976c | 1245 | } |
268a799a PA |
1246 | else if (command_editing_p |
1247 | && from_tty | |
1248 | && input_interactive_p (current_ui)) | |
d318976c | 1249 | { |
38bcc89d | 1250 | rl = gdb_readline_wrapper (prompt); |
d318976c | 1251 | } |
9e0b60a8 | 1252 | else |
d318976c | 1253 | { |
c5c136ea | 1254 | rl = gdb_readline_no_editing (prompt); |
d318976c | 1255 | } |
9e0b60a8 | 1256 | |
b69d38af PA |
1257 | cmd = handle_line_of_input (&cmd_line_buffer, rl, |
1258 | repeat, annotation_suffix); | |
1259 | if (cmd == (char *) EOF) | |
d318976c | 1260 | { |
b69d38af | 1261 | cmd = NULL; |
d318976c | 1262 | break; |
9e0b60a8 | 1263 | } |
b69d38af | 1264 | if (cmd != NULL) |
d318976c | 1265 | break; |
9e0b60a8 | 1266 | |
6e5d74e7 PA |
1267 | /* Got partial input. I.e., got a line that ends with a |
1268 | continuation character (backslash). Suppress printing the | |
1269 | prompt again. */ | |
38bcc89d | 1270 | prompt = NULL; |
d318976c | 1271 | } |
9e0b60a8 | 1272 | |
6aa899ce | 1273 | #ifdef SIGTSTP |
d318976c | 1274 | if (job_control) |
6aa899ce | 1275 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1276 | #endif |
9e0b60a8 | 1277 | |
b69d38af | 1278 | return cmd; |
9e0b60a8 JM |
1279 | } |
1280 | \f | |
371d5dec | 1281 | /* Print the GDB banner. */ |
9e0b60a8 | 1282 | void |
fba45db2 | 1283 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1284 | { |
1285 | /* From GNU coding standards, first line is meant to be easy for a | |
1286 | program to parse, and is just canonical program name and version | |
371d5dec | 1287 | number, which starts after last space. */ |
9e0b60a8 | 1288 | |
c16158bc | 1289 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1290 | |
371d5dec | 1291 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1292 | |
3e43a32a | 1293 | fprintf_filtered (stream, |
82e1e79a | 1294 | "Copyright (C) 2018 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1295 | |
1296 | /* Following the copyright is a brief statement that the program is | |
1297 | free software, that users are free to copy and change it on | |
1298 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1299 | there is no warranty. */ |
9e0b60a8 JM |
1300 | |
1301 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1302 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1303 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1304 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1305 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1306 | |
371d5dec | 1307 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1308 | |
1309 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1310 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1311 | { |
3e43a32a MS |
1312 | fprintf_filtered (stream, "--host=%s --target=%s", |
1313 | host_name, target_name); | |
9e0b60a8 JM |
1314 | } |
1315 | else | |
1316 | { | |
1317 | fprintf_filtered (stream, "%s", host_name); | |
1318 | } | |
6eaaf48b EZ |
1319 | fprintf_filtered (stream, "\".\n\ |
1320 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1321 | |
1322 | if (REPORT_BUGS_TO[0]) | |
1323 | { | |
6eaaf48b | 1324 | fprintf_filtered (stream, |
c16158bc | 1325 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1326 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1327 | } |
1cf55f60 PM |
1328 | fprintf_filtered (stream, |
1329 | _("Find the GDB manual and other documentation \ | |
1330 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1331 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1332 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1333 | commands related to \"word\".")); |
9e0b60a8 | 1334 | } |
6eaaf48b EZ |
1335 | |
1336 | /* Print the details of GDB build-time configuration. */ | |
1337 | void | |
1338 | print_gdb_configuration (struct ui_file *stream) | |
1339 | { | |
1340 | fprintf_filtered (stream, _("\ | |
1341 | This GDB was configured as follows:\n\ | |
1342 | configure --host=%s --target=%s\n\ | |
1343 | "), host_name, target_name); | |
1344 | fprintf_filtered (stream, _("\ | |
1345 | --with-auto-load-dir=%s\n\ | |
1346 | --with-auto-load-safe-path=%s\n\ | |
1347 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1348 | #if HAVE_LIBEXPAT | |
1349 | fprintf_filtered (stream, _("\ | |
1350 | --with-expat\n\ | |
1351 | ")); | |
1352 | #else | |
1353 | fprintf_filtered (stream, _("\ | |
1354 | --without-expat\n\ | |
1355 | ")); | |
1356 | #endif | |
1357 | if (GDB_DATADIR[0]) | |
1358 | fprintf_filtered (stream, _("\ | |
1359 | --with-gdb-datadir=%s%s\n\ | |
1360 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1361 | #ifdef ICONV_BIN | |
1362 | fprintf_filtered (stream, _("\ | |
1363 | --with-iconv-bin=%s%s\n\ | |
1364 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1365 | #endif | |
1366 | if (JIT_READER_DIR[0]) | |
1367 | fprintf_filtered (stream, _("\ | |
1368 | --with-jit-reader-dir=%s%s\n\ | |
1369 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1370 | #if HAVE_LIBUNWIND_IA64_H | |
1371 | fprintf_filtered (stream, _("\ | |
1372 | --with-libunwind-ia64\n\ | |
1373 | ")); | |
1374 | #else | |
1375 | fprintf_filtered (stream, _("\ | |
1376 | --without-libunwind-ia64\n\ | |
1377 | ")); | |
1378 | #endif | |
1379 | #if HAVE_LIBLZMA | |
1380 | fprintf_filtered (stream, _("\ | |
1381 | --with-lzma\n\ | |
1382 | ")); | |
1383 | #else | |
1384 | fprintf_filtered (stream, _("\ | |
1385 | --without-lzma\n\ | |
1386 | ")); | |
1387 | #endif | |
9bd8e0b0 EZ |
1388 | #if HAVE_LIBBABELTRACE |
1389 | fprintf_filtered (stream, _("\ | |
1390 | --with-babeltrace\n\ | |
1391 | ")); | |
1392 | #else | |
1393 | fprintf_filtered (stream, _("\ | |
1394 | --without-babeltrace\n\ | |
1395 | ")); | |
1396 | #endif | |
1397 | #if HAVE_LIBIPT | |
1398 | fprintf_filtered (stream, _("\ | |
1399 | --with-intel-pt\n\ | |
1400 | ")); | |
1401 | #else | |
1402 | fprintf_filtered (stream, _("\ | |
1403 | --without-intel-pt\n\ | |
1404 | ")); | |
1405 | #endif | |
1406 | #if HAVE_LIBMCHECK | |
1407 | fprintf_filtered (stream, _("\ | |
1408 | --enable-libmcheck\n\ | |
1409 | ")); | |
1410 | #else | |
1411 | fprintf_filtered (stream, _("\ | |
1412 | --disable-libmcheck\n\ | |
1413 | ")); | |
1414 | #endif | |
1415 | #if HAVE_LIBMPFR | |
1416 | fprintf_filtered (stream, _("\ | |
1417 | --with-mpfr\n\ | |
1418 | ")); | |
1419 | #else | |
1420 | fprintf_filtered (stream, _("\ | |
1421 | --without-mpfr\n\ | |
1422 | ")); | |
1423 | #endif | |
6eaaf48b EZ |
1424 | #ifdef WITH_PYTHON_PATH |
1425 | fprintf_filtered (stream, _("\ | |
1426 | --with-python=%s%s\n\ | |
1427 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1428 | #endif | |
97d66cc6 EZ |
1429 | #if HAVE_GUILE |
1430 | fprintf_filtered (stream, _("\ | |
1431 | --with-guile\n\ | |
1432 | ")); | |
1433 | #else | |
1434 | fprintf_filtered (stream, _("\ | |
1435 | --without-guile\n\ | |
1436 | ")); | |
1437 | #endif | |
6eaaf48b EZ |
1438 | #ifdef RELOC_SRCDIR |
1439 | fprintf_filtered (stream, _("\ | |
1440 | --with-relocated-sources=%s\n\ | |
1441 | "), RELOC_SRCDIR); | |
1442 | #endif | |
1443 | if (DEBUGDIR[0]) | |
1444 | fprintf_filtered (stream, _("\ | |
1445 | --with-separate-debug-dir=%s%s\n\ | |
1446 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1447 | if (TARGET_SYSTEM_ROOT[0]) | |
1448 | fprintf_filtered (stream, _("\ | |
1449 | --with-sysroot=%s%s\n\ | |
1450 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1451 | if (SYSTEM_GDBINIT[0]) | |
1452 | fprintf_filtered (stream, _("\ | |
1453 | --with-system-gdbinit=%s%s\n\ | |
1454 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
48d1d6f5 EZ |
1455 | /* We assume "relocatable" will be printed at least once, thus we always |
1456 | print this text. It's a reasonably safe assumption for now. */ | |
1457 | fprintf_filtered (stream, _("\n\ | |
1458 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1459 | tree, and GDB will still find it.)\n\ | |
1460 | ")); | |
6eaaf48b | 1461 | } |
9e0b60a8 | 1462 | \f |
95298e72 | 1463 | |
ab821bc6 PA |
1464 | /* The current top level prompt, settable with "set prompt", and/or |
1465 | with the python `gdb.prompt_hook' hook. */ | |
1466 | static char *top_prompt; | |
9e0b60a8 | 1467 | |
ab821bc6 | 1468 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1469 | |
1470 | char * | |
ab821bc6 | 1471 | get_prompt (void) |
95298e72 | 1472 | { |
ab821bc6 | 1473 | return top_prompt; |
95298e72 PM |
1474 | } |
1475 | ||
ab821bc6 | 1476 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1477 | |
1478 | void | |
ab821bc6 | 1479 | set_prompt (const char *s) |
95298e72 | 1480 | { |
ab821bc6 | 1481 | char *p = xstrdup (s); |
95298e72 | 1482 | |
ab821bc6 PA |
1483 | xfree (top_prompt); |
1484 | top_prompt = p; | |
9e0b60a8 | 1485 | } |
9e0b60a8 | 1486 | \f |
c5aa993b | 1487 | |
b0abbc58 | 1488 | struct qt_args |
9e0b60a8 | 1489 | { |
b0abbc58 JJ |
1490 | int from_tty; |
1491 | }; | |
9e0b60a8 | 1492 | |
54a012c9 PA |
1493 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1494 | inferior, depending on how we originally gained control of it. */ | |
1495 | ||
1496 | static int | |
1497 | kill_or_detach (struct inferior *inf, void *args) | |
1498 | { | |
19ba03f4 | 1499 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 PA |
1500 | struct thread_info *thread; |
1501 | ||
6c95b8df PA |
1502 | if (inf->pid == 0) |
1503 | return 0; | |
1504 | ||
b8fa0bfa PA |
1505 | thread = any_thread_of_process (inf->pid); |
1506 | if (thread != NULL) | |
9e0b60a8 | 1507 | { |
54a012c9 | 1508 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1509 | |
1510 | /* Leave core files alone. */ | |
1511 | if (target_has_execution) | |
1512 | { | |
1513 | if (inf->attach_flag) | |
6e1e1966 | 1514 | target_detach (inf, qt->from_tty); |
c35b1492 PA |
1515 | else |
1516 | target_kill (); | |
1517 | } | |
9e0b60a8 JM |
1518 | } |
1519 | ||
54a012c9 PA |
1520 | return 0; |
1521 | } | |
1522 | ||
b8fa0bfa PA |
1523 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1524 | will do to each inferior on a "quit". ARG points to a struct | |
1525 | ui_out where output is to be collected. */ | |
1526 | ||
1527 | static int | |
1528 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1529 | { | |
19ba03f4 | 1530 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1531 | |
6c95b8df PA |
1532 | if (inf->pid == 0) |
1533 | return 0; | |
1534 | ||
b8fa0bfa PA |
1535 | if (inf->attach_flag) |
1536 | fprintf_filtered (stb, | |
1537 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1538 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1539 | else | |
1540 | fprintf_filtered (stb, | |
1541 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1542 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1543 | ||
1544 | return 0; | |
1545 | } | |
1546 | ||
1547 | /* If necessary, make the user confirm that we should quit. Return | |
1548 | non-zero if we should quit, zero if we shouldn't. */ | |
1549 | ||
1550 | int | |
1551 | quit_confirm (void) | |
1552 | { | |
b8fa0bfa PA |
1553 | /* Don't even ask if we're only debugging a core file inferior. */ |
1554 | if (!have_live_inferiors ()) | |
1555 | return 1; | |
1556 | ||
1557 | /* Build the query string as a single string. */ | |
d7e74731 | 1558 | string_file stb; |
b8fa0bfa | 1559 | |
d7e74731 PA |
1560 | stb.puts (_("A debugging session is active.\n\n")); |
1561 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1562 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1563 | |
d7e74731 | 1564 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1565 | } |
1566 | ||
18206ca3 PP |
1567 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1568 | terminal so that we leave the terminal in the state we acquired it. */ | |
1569 | ||
1570 | static void | |
1571 | undo_terminal_modifications_before_exit (void) | |
1572 | { | |
3c216924 PA |
1573 | struct ui *saved_top_level = current_ui; |
1574 | ||
223ffa71 | 1575 | target_terminal::ours (); |
3c216924 PA |
1576 | |
1577 | current_ui = main_ui; | |
1578 | ||
18206ca3 PP |
1579 | #if defined(TUI) |
1580 | tui_disable (); | |
1581 | #endif | |
3c216924 PA |
1582 | gdb_disable_readline (); |
1583 | ||
1584 | current_ui = saved_top_level; | |
18206ca3 PP |
1585 | } |
1586 | ||
1587 | ||
b0abbc58 JJ |
1588 | /* Quit without asking for confirmation. */ |
1589 | ||
1590 | void | |
36cf1806 | 1591 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1592 | { |
1593 | int exit_code = 0; | |
365c70b1 | 1594 | struct qt_args qt; |
b0abbc58 | 1595 | |
18206ca3 PP |
1596 | undo_terminal_modifications_before_exit (); |
1597 | ||
b0abbc58 | 1598 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1599 | value of that expression. */ |
36cf1806 TT |
1600 | if (exit_arg) |
1601 | exit_code = *exit_arg; | |
4b0ad762 AS |
1602 | else if (return_child_result) |
1603 | exit_code = return_child_result_value; | |
b0abbc58 | 1604 | |
365c70b1 JJ |
1605 | qt.from_tty = from_tty; |
1606 | ||
b0abbc58 | 1607 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1608 | |
1609 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
492d29ea | 1610 | TRY |
2f9d54cf PA |
1611 | { |
1612 | disconnect_tracing (); | |
1613 | iterate_over_inferiors (kill_or_detach, &qt); | |
1614 | } | |
492d29ea PA |
1615 | CATCH (ex, RETURN_MASK_ALL) |
1616 | { | |
1617 | exception_print (gdb_stderr, ex); | |
1618 | } | |
1619 | END_CATCH | |
2f9d54cf PA |
1620 | |
1621 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1622 | them all out. */ | |
492d29ea | 1623 | TRY |
2f9d54cf PA |
1624 | { |
1625 | pop_all_targets (); | |
1626 | } | |
492d29ea PA |
1627 | CATCH (ex, RETURN_MASK_ALL) |
1628 | { | |
1629 | exception_print (gdb_stderr, ex); | |
1630 | } | |
1631 | END_CATCH | |
2f9d54cf PA |
1632 | |
1633 | /* Save the history information if it is appropriate to do so. */ | |
492d29ea | 1634 | TRY |
2f9d54cf | 1635 | { |
268a799a PA |
1636 | if (write_history_p && history_filename) |
1637 | { | |
1638 | struct ui *ui; | |
1639 | int save = 0; | |
1640 | ||
1641 | /* History is currently shared between all UIs. If there's | |
1642 | any UI with a terminal, save history. */ | |
1643 | ALL_UIS (ui) | |
1644 | { | |
1645 | if (input_interactive_p (ui)) | |
1646 | { | |
1647 | save = 1; | |
1648 | break; | |
1649 | } | |
1650 | } | |
1651 | ||
1652 | if (save) | |
1653 | gdb_safe_append_history (); | |
1654 | } | |
2f9d54cf | 1655 | } |
492d29ea PA |
1656 | CATCH (ex, RETURN_MASK_ALL) |
1657 | { | |
1658 | exception_print (gdb_stderr, ex); | |
1659 | } | |
1660 | END_CATCH | |
2f9d54cf PA |
1661 | |
1662 | /* Do any final cleanups before exiting. */ | |
492d29ea | 1663 | TRY |
2f9d54cf PA |
1664 | { |
1665 | do_final_cleanups (all_cleanups ()); | |
1666 | } | |
492d29ea PA |
1667 | CATCH (ex, RETURN_MASK_ALL) |
1668 | { | |
1669 | exception_print (gdb_stderr, ex); | |
1670 | } | |
1671 | END_CATCH | |
b0abbc58 | 1672 | |
9e0b60a8 JM |
1673 | exit (exit_code); |
1674 | } | |
1675 | ||
268a799a PA |
1676 | /* The value of the "interactive-mode" setting. */ |
1677 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1678 | |
268a799a PA |
1679 | /* Implement the "show interactive-mode" option. */ |
1680 | ||
1681 | static void | |
1682 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1683 | struct cmd_list_element *c, | |
1684 | const char *value) | |
9e0b60a8 | 1685 | { |
268a799a PA |
1686 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1687 | fprintf_filtered (file, "Debugger's interactive mode " | |
1688 | "is %s (currently %s).\n", | |
d9de1fe3 | 1689 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1690 | else |
1691 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1692 | } | |
1693 | ||
1694 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1695 | |
268a799a PA |
1696 | int |
1697 | input_interactive_p (struct ui *ui) | |
1698 | { | |
c63a1f86 JK |
1699 | if (batch_flag) |
1700 | return 0; | |
1701 | ||
268a799a PA |
1702 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1703 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1704 | |
268a799a | 1705 | return ui->input_interactive_p; |
9e0b60a8 JM |
1706 | } |
1707 | \f | |
9e0b60a8 | 1708 | static void |
0b39b52e | 1709 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1710 | { |
dc7eb48e PA |
1711 | /* Can't call dont_repeat here because we're not necessarily reading |
1712 | from stdin. */ | |
1713 | *saved_command_line = 0; | |
9e0b60a8 JM |
1714 | } |
1715 | \f | |
1716 | /* Functions to manipulate command line editing control variables. */ | |
1717 | ||
1718 | /* Number of commands to print in each call to show_commands. */ | |
1719 | #define Hist_print 10 | |
d318976c | 1720 | void |
85c4be7c | 1721 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1722 | { |
1723 | /* Index for history commands. Relative to history_base. */ | |
1724 | int offset; | |
1725 | ||
1726 | /* Number of the history entry which we are planning to display next. | |
1727 | Relative to history_base. */ | |
1728 | static int num = 0; | |
1729 | ||
9e0b60a8 | 1730 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1731 | |
1732 | if (args) | |
1733 | { | |
1734 | if (args[0] == '+' && args[1] == '\0') | |
1735 | /* "info editing +" should print from the stored position. */ | |
1736 | ; | |
1737 | else | |
1738 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1739 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1740 | } |
1741 | /* "show commands" means print the last Hist_print commands. */ | |
1742 | else | |
1743 | { | |
840a9a1f | 1744 | num = history_length - Hist_print; |
9e0b60a8 JM |
1745 | } |
1746 | ||
1747 | if (num < 0) | |
1748 | num = 0; | |
1749 | ||
1750 | /* If there are at least Hist_print commands, we want to display the last | |
1751 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1752 | if (history_length - num < Hist_print) |
9e0b60a8 | 1753 | { |
840a9a1f | 1754 | num = history_length - Hist_print; |
9e0b60a8 JM |
1755 | if (num < 0) |
1756 | num = 0; | |
1757 | } | |
1758 | ||
840a9a1f PA |
1759 | for (offset = num; |
1760 | offset < num + Hist_print && offset < history_length; | |
1761 | offset++) | |
9e0b60a8 JM |
1762 | { |
1763 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1764 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1765 | } |
1766 | ||
1767 | /* The next command we want to display is the next one that we haven't | |
1768 | displayed yet. */ | |
1769 | num += Hist_print; | |
1770 | ||
1771 | /* If the user repeats this command with return, it should do what | |
1772 | "show commands +" does. This is unnecessary if arg is null, | |
1773 | because "show commands +" is not useful after "show commands". */ | |
1774 | if (from_tty && args) | |
85c4be7c | 1775 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1776 | } |
1777 | ||
ebfd00d2 | 1778 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1779 | |
ebfd00d2 | 1780 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1781 | |
ebfd00d2 PP |
1782 | static void |
1783 | set_readline_history_size (int history_size) | |
1784 | { | |
1785 | gdb_assert (history_size >= -1); | |
840a9a1f | 1786 | |
ebfd00d2 | 1787 | if (history_size == -1) |
840a9a1f | 1788 | unstifle_history (); |
883b9c6c | 1789 | else |
ebfd00d2 PP |
1790 | stifle_history (history_size); |
1791 | } | |
1792 | ||
1793 | /* Called by do_setshow_command. */ | |
1794 | static void | |
eb4c3f4a TT |
1795 | set_history_size_command (const char *args, |
1796 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1797 | { |
1798 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1799 | } |
1800 | ||
d318976c | 1801 | void |
981a3fb3 | 1802 | set_history (const char *args, int from_tty) |
9e0b60a8 | 1803 | { |
3e43a32a MS |
1804 | printf_unfiltered (_("\"set history\" must be followed " |
1805 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1806 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1807 | } |
1808 | ||
d318976c | 1809 | void |
981a3fb3 | 1810 | show_history (const char *args, int from_tty) |
9e0b60a8 JM |
1811 | { |
1812 | cmd_show_list (showhistlist, from_tty, ""); | |
1813 | } | |
1814 | ||
371d5dec | 1815 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1816 | |
1817 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1818 | void |
eb4c3f4a | 1819 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1820 | { |
6f937416 | 1821 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1822 | struct cmd_list_element *showcmd; |
1823 | ||
1824 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1825 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1826 | |
1827 | if (info_verbose) | |
1828 | { | |
1829 | c->doc = "Set verbose printing of informational messages."; | |
1830 | showcmd->doc = "Show verbose printing of informational messages."; | |
1831 | } | |
1832 | else | |
1833 | { | |
1834 | c->doc = "Set verbosity."; | |
1835 | showcmd->doc = "Show verbosity."; | |
1836 | } | |
1837 | } | |
1838 | ||
9e0b60a8 | 1839 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1840 | have been read so that the user can change the history file via his |
1841 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1842 | overrides all of this. */ | |
9e0b60a8 JM |
1843 | |
1844 | void | |
fba45db2 | 1845 | init_history (void) |
9e0b60a8 JM |
1846 | { |
1847 | char *tmpenv; | |
1848 | ||
b58c513b | 1849 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1850 | if (tmpenv) |
840a9a1f | 1851 | { |
bc460514 | 1852 | long var; |
0fc26caf | 1853 | int saved_errno; |
bc460514 PP |
1854 | char *endptr; |
1855 | ||
1856 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1857 | errno = 0; |
bc460514 | 1858 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1859 | saved_errno = errno; |
bc460514 PP |
1860 | endptr = skip_spaces (endptr); |
1861 | ||
1862 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1863 | empty string, a negative number or a huge positive number (larger than | |
1864 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1865 | history size to the number we have read. This behavior is consistent | |
1866 | with how bash handles HISTSIZE. */ | |
1867 | if (*endptr != '\0') | |
1868 | ; | |
1869 | else if (*tmpenv == '\0' | |
1870 | || var < 0 | |
0fc26caf PP |
1871 | || var > INT_MAX |
1872 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1873 | errno after calling strtol to distinguish between a value that | |
1874 | is exactly INT_MAX and an overflowing value that was clamped | |
1875 | to INT_MAX. */ | |
1876 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1877 | history_size_setshow_var = -1; |
1878 | else | |
1879 | history_size_setshow_var = var; | |
840a9a1f | 1880 | } |
bc460514 PP |
1881 | |
1882 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1883 | default. */ | |
1884 | if (history_size_setshow_var == -2) | |
840a9a1f | 1885 | history_size_setshow_var = 256; |
9e0b60a8 | 1886 | |
ebfd00d2 | 1887 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1888 | |
1889 | tmpenv = getenv ("GDBHISTFILE"); | |
1890 | if (tmpenv) | |
1b36a34b | 1891 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1892 | else if (!history_filename) |
1893 | { | |
1894 | /* We include the current directory so that if the user changes | |
1895 | directories the file written will be the same as the one | |
1896 | that was read. */ | |
a0b3c4fd | 1897 | #ifdef __MSDOS__ |
eb2f494a | 1898 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1899 | history_filename = concat (current_directory, "/_gdb_history", |
1900 | (char *)NULL); | |
a0b3c4fd | 1901 | #else |
1754f103 MK |
1902 | history_filename = concat (current_directory, "/.gdb_history", |
1903 | (char *)NULL); | |
a0b3c4fd | 1904 | #endif |
c5aa993b | 1905 | } |
9e0b60a8 JM |
1906 | read_history (history_filename); |
1907 | } | |
1908 | ||
920d2a44 | 1909 | static void |
ab821bc6 PA |
1910 | show_prompt (struct ui_file *file, int from_tty, |
1911 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1912 | { |
1913 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1914 | } | |
1915 | ||
3c216924 PA |
1916 | /* "set editing" command. */ |
1917 | ||
1918 | static void | |
eb4c3f4a | 1919 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
1920 | { |
1921 | change_line_handler (set_editing_cmd_var); | |
1922 | /* Update the control variable so that MI's =cmd-param-changed event | |
1923 | shows the correct value. */ | |
1924 | set_editing_cmd_var = current_ui->command_editing; | |
1925 | } | |
1926 | ||
920d2a44 | 1927 | static void |
3c216924 PA |
1928 | show_editing (struct ui_file *file, int from_tty, |
1929 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 1930 | { |
3e43a32a MS |
1931 | fprintf_filtered (file, _("Editing of command lines as " |
1932 | "they are typed is %s.\n"), | |
3c216924 | 1933 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
1934 | } |
1935 | ||
1936 | static void | |
1937 | show_annotation_level (struct ui_file *file, int from_tty, | |
1938 | struct cmd_list_element *c, const char *value) | |
1939 | { | |
1940 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1941 | } | |
1942 | ||
1943 | static void | |
1944 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1945 | struct cmd_list_element *c, const char *value) | |
1946 | { | |
3e43a32a MS |
1947 | fprintf_filtered (file, _("Notification of completion for " |
1948 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1949 | value); |
1950 | } | |
6dea1fbd | 1951 | |
8d551b02 DE |
1952 | /* New values of the "data-directory" parameter are staged here. */ |
1953 | static char *staged_gdb_datadir; | |
1954 | ||
6dea1fbd JK |
1955 | /* "set" command for the gdb_datadir configuration variable. */ |
1956 | ||
1957 | static void | |
eb4c3f4a | 1958 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 1959 | { |
8d551b02 | 1960 | set_gdb_data_directory (staged_gdb_datadir); |
76727919 | 1961 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
1962 | } |
1963 | ||
8d551b02 DE |
1964 | /* "show" command for the gdb_datadir configuration variable. */ |
1965 | ||
1966 | static void | |
1967 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
1968 | struct cmd_list_element *c, const char *value) | |
1969 | { | |
1970 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
1971 | gdb_datadir); | |
1972 | } | |
1973 | ||
97c85fc6 | 1974 | static void |
eb4c3f4a TT |
1975 | set_history_filename (const char *args, |
1976 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
1977 | { |
1978 | /* We include the current directory so that if the user changes | |
1979 | directories the file written will be the same as the one | |
1980 | that was read. */ | |
1981 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1982 | history_filename = reconcat (history_filename, current_directory, "/", | |
1983 | history_filename, (char *) NULL); | |
1984 | } | |
1985 | ||
9e0b60a8 | 1986 | static void |
fba45db2 | 1987 | init_main (void) |
9e0b60a8 | 1988 | { |
60eb5395 PA |
1989 | struct cmd_list_element *c; |
1990 | ||
ab821bc6 PA |
1991 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1992 | the DEFAULT_PROMPT is. */ | |
1993 | set_prompt (DEFAULT_PROMPT); | |
1994 | ||
9e0b60a8 JM |
1995 | /* Set the important stuff up for command editing. */ |
1996 | command_editing_p = 1; | |
9e0b60a8 | 1997 | history_expansion_p = 0; |
452a569e | 1998 | write_history_p = 0; |
9e0b60a8 JM |
1999 | |
2000 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2001 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2002 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2003 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2004 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2005 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2006 | rl_readline_name = "gdb"; |
7cb3ec5e | 2007 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2008 | |
467d8519 TT |
2009 | /* The name for this defun comes from Bash, where it originated. |
2010 | 15 is Control-o, the same binding this function has in Bash. */ | |
2011 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2012 | ||
4d28ad1e | 2013 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2014 | &top_prompt, |
3e43a32a MS |
2015 | _("Set gdb's prompt"), |
2016 | _("Show gdb's prompt"), | |
ab821bc6 PA |
2017 | NULL, NULL, |
2018 | show_prompt, | |
4d28ad1e | 2019 | &setlist, &showlist); |
9e0b60a8 | 2020 | |
1bedd215 | 2021 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2022 | Don't repeat this command.\nPrimarily \ |
2023 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2024 | hitting return.")); |
9e0b60a8 | 2025 | |
5bf193a2 | 2026 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2027 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2028 | Set editing of command lines as they are typed."), _("\ |
2029 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2030 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2031 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2032 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2033 | set_editing, |
2034 | show_editing, | |
5bf193a2 AC |
2035 | &setlist, &showlist); |
2036 | ||
2037 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2038 | Set saving of the history record on exit."), _("\ | |
2039 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2040 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2041 | Without an argument, saving is enabled."), |
2042 | NULL, | |
920d2a44 | 2043 | show_write_history_p, |
5bf193a2 | 2044 | &sethistlist, &showhistlist); |
9e0b60a8 | 2045 | |
ebfd00d2 PP |
2046 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2047 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2048 | Set the size of the command history,"), _("\ |
2049 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2050 | ie. the number of previous commands to keep a record of.\n\ |
2051 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2052 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2053 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2054 | set_history_size_command, |
2055 | show_history_size, | |
2056 | &sethistlist, &showhistlist); | |
4d28ad1e | 2057 | |
fc637f04 PP |
2058 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2059 | &history_remove_duplicates, _("\ | |
2060 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2061 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2062 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2063 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2064 | entry, each time a new history entry is added.\n\ | |
2065 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2066 | Only history entries added during this session are considered for removal.\n\ | |
2067 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2068 | By default this option is set to 0."), | |
2069 | NULL, | |
2070 | show_history_remove_duplicates, | |
2071 | &sethistlist, &showhistlist); | |
2072 | ||
4d28ad1e AC |
2073 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2074 | Set the filename in which to record the command history"), _("\ | |
2075 | Show the filename in which to record the command history"), _("\ | |
2076 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2077 | set_history_filename, |
920d2a44 | 2078 | show_history_filename, |
4d28ad1e | 2079 | &sethistlist, &showhistlist); |
9e0b60a8 | 2080 | |
e360902b | 2081 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2082 | Set whether to confirm potentially dangerous operations."), _("\ |
2083 | Show whether to confirm potentially dangerous operations."), NULL, | |
2084 | NULL, | |
e360902b | 2085 | show_confirm, |
5bf193a2 | 2086 | &setlist, &showlist); |
9e0b60a8 | 2087 | |
85c07804 AC |
2088 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2089 | Set annotation_level."), _("\ | |
2090 | Show annotation_level."), _("\ | |
9e0b60a8 | 2091 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2092 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2093 | NULL, |
920d2a44 | 2094 | show_annotation_level, |
85c07804 | 2095 | &setlist, &showlist); |
362646f5 | 2096 | |
5bf193a2 AC |
2097 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2098 | &exec_done_display_p, _("\ | |
2099 | Set notification of completion for asynchronous execution commands."), _("\ | |
2100 | Show notification of completion for asynchronous execution commands."), _("\ | |
2101 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2102 | NULL, | |
920d2a44 | 2103 | show_exec_done_display_p, |
5bf193a2 | 2104 | &setlist, &showlist); |
b14b1491 TT |
2105 | |
2106 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2107 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2108 | _("Show GDB's data directory."), |
2109 | _("\ | |
2110 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2111 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2112 | &setlist, |
2113 | &showlist); | |
268a799a PA |
2114 | |
2115 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2116 | &interactive_mode, _("\ | |
2117 | Set whether GDB's standard input is a terminal."), _("\ | |
2118 | Show whether GDB's standard input is a terminal."), _("\ | |
2119 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2120 | means that GDB should wait for the user to answer queries associated to\n\ | |
2121 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2122 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2123 | If auto (the default), determine which mode to use based on the standard\n\ | |
2124 | input settings."), | |
2125 | NULL, | |
2126 | show_interactive_mode, | |
2127 | &setlist, &showlist); | |
60eb5395 PA |
2128 | |
2129 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2130 | Create a new UI. It takes two arguments:\n\ | |
2131 | The first argument is the name of the interpreter to run.\n\ | |
2132 | The second argument is the terminal the UI runs on.\n"), &cmdlist); | |
2133 | set_cmd_completer (c, interpreter_completer); | |
9e0b60a8 | 2134 | } |
64cdedad EZ |
2135 | |
2136 | void | |
2137 | gdb_init (char *argv0) | |
2138 | { | |
2139 | if (pre_init_ui_hook) | |
2140 | pre_init_ui_hook (); | |
2141 | ||
371d5dec | 2142 | /* Run the init function of each source file. */ |
64cdedad | 2143 | |
64cdedad EZ |
2144 | #ifdef __MSDOS__ |
2145 | /* Make sure we return to the original directory upon exit, come | |
2146 | what may, since the OS doesn't do that for us. */ | |
2147 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2148 | #endif | |
2149 | ||
371d5dec MS |
2150 | init_cmd_lists (); /* This needs to be done first. */ |
2151 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2152 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2153 | |
24b73f8e PP |
2154 | init_page_info (); |
2155 | ||
9dea9163 | 2156 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2157 | initialize_all_files (); |
9dea9163 | 2158 | |
6c95b8df PA |
2159 | /* This creates the current_program_space. Do this after all the |
2160 | _initialize_foo routines have had a chance to install their | |
2161 | per-sspace data keys. Also do this before | |
2162 | initialize_current_architecture is called, because it accesses | |
2163 | exec_bfd of the current program space. */ | |
2164 | initialize_progspace (); | |
2165 | initialize_inferiors (); | |
64cdedad EZ |
2166 | initialize_current_architecture (); |
2167 | init_cli_cmds(); | |
371d5dec | 2168 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2169 | |
0ea3f30e DJ |
2170 | initialize_stdin_serial (); |
2171 | ||
6a06d660 PP |
2172 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2173 | to alter it. */ | |
2174 | set_initial_gdb_ttystate (); | |
2175 | ||
362646f5 | 2176 | async_init_signals (); |
64cdedad | 2177 | |
371d5dec MS |
2178 | /* We need a default language for parsing expressions, so simple |
2179 | things like "set width 0" won't fail if no language is explicitly | |
2180 | set in a config file or implicitly set by reading an executable | |
2181 | during startup. */ | |
64cdedad | 2182 | set_language (language_c); |
371d5dec | 2183 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2184 | |
6dddc817 | 2185 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2186 | installed. For example "info pretty-printer" needs the "info" |
2187 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2188 | script initialization here. */ |
2189 | finish_ext_lang_initialization (); | |
64cdedad | 2190 | } |