Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
b811d2c2 | 3 | Copyright (C) 1986-2020 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" | |
766f8836 | 37 | #include "terminal.h" |
268a13a5 | 38 | #include "gdbsupport/job-control.h" |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
268a13a5 | 42 | #include "gdbsupport/version.h" |
210661e7 | 43 | #include "serial.h" |
f17517ea | 44 | #include "main.h" |
400b5eca | 45 | #include "gdbsupport/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" |
268a13a5 | 53 | #include "gdbsupport/buffer.h" |
06cc9596 | 54 | #include "gdbsupport/gdb_select.h" |
268a13a5 | 55 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 56 | #include "gdbarch.h" |
ff8577f6 | 57 | #include "gdbsupport/pathstuff.h" |
6ec1d75e | 58 | #include "cli/cli-style.h" |
c906108c | 59 | |
371d5dec | 60 | /* readline include files. */ |
dbda9972 AC |
61 | #include "readline/readline.h" |
62 | #include "readline/history.h" | |
c906108c SS |
63 | |
64 | /* readline defines this. */ | |
65 | #undef savestring | |
66 | ||
67 | #include <sys/types.h> | |
c906108c | 68 | |
c2c6d25f | 69 | #include "event-top.h" |
53ce3c39 | 70 | #include <sys/stat.h> |
c906108c | 71 | #include <ctype.h> |
8b93c638 JM |
72 | #include "ui-out.h" |
73 | #include "cli-out.h" | |
2f9d54cf | 74 | #include "tracepoint.h" |
93d6eb10 | 75 | #include "inf-loop.h" |
c906108c | 76 | |
18206ca3 PP |
77 | #if defined(TUI) |
78 | # include "tui/tui.h" | |
79 | #endif | |
80 | ||
60eb5395 PA |
81 | #ifndef O_NOCTTY |
82 | # define O_NOCTTY 0 | |
83 | #endif | |
84 | ||
ca7b0bbc TT |
85 | extern void initialize_all_files (void); |
86 | ||
63e163f2 AB |
87 | static bool history_filename_empty (void); |
88 | ||
95298e72 PM |
89 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
90 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
91 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
92 | ||
405feb71 | 93 | /* Default command line prompt. This is overridden in some configs. */ |
104c1213 JM |
94 | |
95 | #ifndef DEFAULT_PROMPT | |
96 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
97 | #endif |
98 | ||
87fb00ea SM |
99 | struct ui_file ** |
100 | current_ui_gdb_stdout_ptr () | |
101 | { | |
102 | return ¤t_ui->m_gdb_stdout; | |
79aa2fe8 PA |
103 | } |
104 | ||
87fb00ea SM |
105 | struct ui_file ** |
106 | current_ui_gdb_stdin_ptr () | |
107 | { | |
108 | return ¤t_ui->m_gdb_stdin; | |
109 | } | |
110 | ||
111 | struct ui_file ** | |
112 | current_ui_gdb_stderr_ptr () | |
113 | { | |
114 | return ¤t_ui->m_gdb_stderr; | |
115 | } | |
116 | ||
117 | struct ui_file ** | |
118 | current_ui_gdb_stdlog_ptr () | |
119 | { | |
120 | return ¤t_ui->m_gdb_stdlog; | |
121 | } | |
122 | ||
123 | struct ui_out ** | |
124 | current_ui_current_uiout_ptr () | |
125 | { | |
126 | return ¤t_ui->m_current_uiout; | |
127 | } | |
79aa2fe8 | 128 | |
c906108c SS |
129 | int inhibit_gdbinit = 0; |
130 | ||
050a2e1d PA |
131 | /* Flag for whether we want to confirm potentially dangerous |
132 | operations. Default is yes. */ | |
133 | ||
491144b5 | 134 | bool confirm = true; |
c906108c | 135 | |
920d2a44 | 136 | static void |
e360902b | 137 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
138 | struct cmd_list_element *c, const char *value) |
139 | { | |
3e43a32a MS |
140 | fprintf_filtered (file, _("Whether to confirm potentially " |
141 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
142 | value); |
143 | } | |
c906108c | 144 | |
c906108c SS |
145 | /* Current working directory. */ |
146 | ||
147 | char *current_directory; | |
148 | ||
2669cade | 149 | /* The last command line executed on the console. Used for command |
68bb5386 PW |
150 | repetitions when the user enters an empty line. */ |
151 | ||
152 | static char *saved_command_line; | |
153 | ||
154 | /* If not NULL, the arguments that should be passed if | |
155 | saved_command_line is repeated. */ | |
156 | ||
157 | static const char *repeat_arguments; | |
158 | ||
159 | /* The previous last command line executed on the console. Used for command | |
160 | repetitions when a command wants to relaunch the previously launched | |
161 | command. We need this as when a command is running, saved_command_line | |
162 | already contains the line of the currently executing command. */ | |
163 | ||
164 | char *previous_saved_command_line; | |
165 | ||
166 | /* If not NULL, the arguments that should be passed if the | |
167 | previous_saved_command_line is repeated. */ | |
168 | ||
169 | static const char *previous_repeat_arguments; | |
c906108c SS |
170 | |
171 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 172 | affects things like recording into the command history, commands |
c906108c SS |
173 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
174 | whatever) can issue its own commands and also send along commands | |
175 | from the user, and have the user not notice that the user interface | |
176 | is issuing commands too. */ | |
2f78cffc | 177 | bool server_command; |
c906108c | 178 | |
371d5dec | 179 | /* Timeout limit for response from target. */ |
c906108c | 180 | |
7734102d EZ |
181 | /* The default value has been changed many times over the years. It |
182 | was originally 5 seconds. But that was thought to be a long time | |
ce808e91 | 183 | to sit and wait, so it was changed to 2 seconds. That was thought |
7734102d | 184 | to be plenty unless the connection was going through some terminal |
ce808e91 AC |
185 | server or multiplexer or other form of hairy serial connection. |
186 | ||
7734102d | 187 | In mid-1996, remote_timeout was moved from remote.c to top.c and |
ce808e91 AC |
188 | it began being used in other remote-* targets. It appears that the |
189 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 190 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
191 | |
192 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
7734102d | 193 | 20 seconds is far worse. This demonstrates the difficulty of using |
ce808e91 AC |
194 | a single variable for all protocol timeouts. |
195 | ||
7734102d | 196 | As remote.c is used much more than remote-e7000.c, it was changed |
371d5dec | 197 | back to 2 seconds in 1999. */ |
ce808e91 AC |
198 | |
199 | int remote_timeout = 2; | |
c906108c SS |
200 | |
201 | /* Non-zero tells remote* modules to output debugging info. */ | |
202 | ||
203 | int remote_debug = 0; | |
204 | ||
6dd77b81 | 205 | /* Sbrk location on entry to main. Used for statistics only. */ |
6242c6a6 | 206 | #ifdef HAVE_USEFUL_SBRK |
6dd77b81 RH |
207 | char *lim_at_start; |
208 | #endif | |
209 | ||
c906108c SS |
210 | /* Hooks for alternate command interfaces. */ |
211 | ||
371d5dec MS |
212 | /* This hook is called from within gdb's many mini-event loops which |
213 | could steal control from a real user interface's event loop. It | |
214 | returns non-zero if the user is requesting a detach, zero | |
215 | otherwise. */ | |
7a292a7a | 216 | |
98bbd631 | 217 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 218 | |
c906108c | 219 | |
c906108c SS |
220 | /* Called from print_frame_info to list the line we stopped in. */ |
221 | ||
7734102d | 222 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
371d5dec | 223 | int line, |
7734102d | 224 | int stopline, |
371d5dec | 225 | int noerror); |
c906108c SS |
226 | /* Replaces most of query. */ |
227 | ||
9a4105ab | 228 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
229 | |
230 | /* Replaces most of warning. */ | |
231 | ||
9a4105ab | 232 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 233 | |
9a4105ab AC |
234 | /* These three functions support getting lines of text from the user. |
235 | They are used in sequence. First deprecated_readline_begin_hook is | |
236 | called with a text string that might be (for example) a message for | |
237 | the user to type in a sequence of commands to be executed at a | |
238 | breakpoint. If this function calls back to a GUI, it might take | |
239 | this opportunity to pop up a text interaction window with this | |
240 | message. Next, deprecated_readline_hook is called with a prompt | |
241 | that is emitted prior to collecting the user input. It can be | |
242 | called multiple times. Finally, deprecated_readline_end_hook is | |
243 | called to notify the GUI that we are done with the interaction | |
244 | window and it can close it. */ | |
c906108c | 245 | |
a121b7c1 | 246 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 247 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 248 | void (*deprecated_readline_end_hook) (void); |
c906108c | 249 | |
6426a772 | 250 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 251 | to or detached from an already running process. */ |
6426a772 | 252 | |
9a4105ab AC |
253 | void (*deprecated_attach_hook) (void); |
254 | void (*deprecated_detach_hook) (void); | |
6426a772 | 255 | |
371d5dec MS |
256 | /* Called when going to wait for the target. Usually allows the GUI |
257 | to run while waiting for target events. */ | |
c906108c | 258 | |
9a4105ab | 259 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
260 | struct target_waitstatus *status, |
261 | int options); | |
c906108c | 262 | |
371d5dec MS |
263 | /* Used by UI as a wrapper around command execution. May do various |
264 | things like enabling/disabling buttons, etc... */ | |
c906108c | 265 | |
7734102d | 266 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
95a6b0a1 | 267 | const char *cmd, int from_tty); |
c906108c SS |
268 | |
269 | /* Called when the current thread changes. Argument is thread id. */ | |
270 | ||
9a4105ab | 271 | void (*deprecated_context_hook) (int id); |
c906108c | 272 | |
98d9f24e PA |
273 | /* See top.h. */ |
274 | ||
895b8f30 TT |
275 | ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_) |
276 | : next (nullptr), | |
895b8f30 TT |
277 | call_readline (nullptr), |
278 | input_handler (nullptr), | |
279 | command_editing (0), | |
280 | interp_info (nullptr), | |
281 | async (0), | |
282 | secondary_prompt_depth (0), | |
283 | stdin_stream (instream_), | |
284 | instream (instream_), | |
285 | outstream (outstream_), | |
286 | errstream (errstream_), | |
287 | input_fd (fileno (instream)), | |
288 | input_interactive_p (ISATTY (instream)), | |
289 | prompt_state (PROMPT_NEEDED), | |
290 | m_gdb_stdout (new stdio_file (outstream)), | |
291 | m_gdb_stdin (new stdio_file (instream)), | |
292 | m_gdb_stderr (new stderr_file (errstream)), | |
293 | m_gdb_stdlog (m_gdb_stderr), | |
294 | m_current_uiout (nullptr) | |
98d9f24e | 295 | { |
895b8f30 | 296 | buffer_init (&line_buffer); |
98d9f24e PA |
297 | |
298 | if (ui_list == NULL) | |
895b8f30 | 299 | ui_list = this; |
98d9f24e PA |
300 | else |
301 | { | |
302 | struct ui *last; | |
303 | ||
304 | for (last = ui_list; last->next != NULL; last = last->next) | |
305 | ; | |
895b8f30 | 306 | last->next = this; |
98d9f24e | 307 | } |
07169ff7 PA |
308 | } |
309 | ||
895b8f30 | 310 | ui::~ui () |
07169ff7 PA |
311 | { |
312 | struct ui *ui, *uiprev; | |
313 | ||
314 | uiprev = NULL; | |
315 | ||
316 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
895b8f30 | 317 | if (ui == this) |
07169ff7 PA |
318 | break; |
319 | ||
320 | gdb_assert (ui != NULL); | |
321 | ||
322 | if (uiprev != NULL) | |
895b8f30 | 323 | uiprev->next = next; |
07169ff7 | 324 | else |
895b8f30 | 325 | ui_list = next; |
07169ff7 | 326 | |
895b8f30 TT |
327 | delete m_gdb_stdin; |
328 | delete m_gdb_stdout; | |
329 | delete m_gdb_stderr; | |
8194e927 SM |
330 | } |
331 | ||
60eb5395 PA |
332 | /* Open file named NAME for read/write, making sure not to make it the |
333 | controlling terminal. */ | |
334 | ||
6e7bc05c | 335 | static gdb_file_up |
60eb5395 PA |
336 | open_terminal_stream (const char *name) |
337 | { | |
338 | int fd; | |
339 | ||
6e7bc05c | 340 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
341 | if (fd < 0) |
342 | perror_with_name (_("opening terminal failed")); | |
343 | ||
6e7bc05c | 344 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
345 | } |
346 | ||
347 | /* Implementation of the "new-ui" command. */ | |
348 | ||
349 | static void | |
32faf971 | 350 | new_ui_command (const char *args, int from_tty) |
60eb5395 | 351 | { |
60eb5395 | 352 | int argc; |
60eb5395 PA |
353 | const char *interpreter_name; |
354 | const char *tty_name; | |
60eb5395 PA |
355 | |
356 | dont_repeat (); | |
357 | ||
773a1edc TT |
358 | gdb_argv argv (args); |
359 | argc = argv.count (); | |
60eb5395 PA |
360 | |
361 | if (argc < 2) | |
65e65158 | 362 | error (_("Usage: new-ui INTERPRETER TTY")); |
60eb5395 PA |
363 | |
364 | interpreter_name = argv[0]; | |
365 | tty_name = argv[1]; | |
366 | ||
4b6749b9 TT |
367 | { |
368 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 369 | |
afe09f0b GL |
370 | /* Open specified terminal. Note: we used to open it three times, |
371 | once for each of stdin/stdout/stderr, but that does not work | |
372 | with Windows named pipes. */ | |
373 | gdb_file_up stream = open_terminal_stream (tty_name); | |
60eb5395 | 374 | |
895b8f30 | 375 | std::unique_ptr<ui> ui |
afe09f0b | 376 | (new struct ui (stream.get (), stream.get (), stream.get ())); |
60eb5395 | 377 | |
4b6749b9 | 378 | ui->async = 1; |
60eb5395 | 379 | |
895b8f30 | 380 | current_ui = ui.get (); |
60eb5395 | 381 | |
4b6749b9 | 382 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 383 | |
4b6749b9 | 384 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 385 | |
afe09f0b GL |
386 | /* Make sure the file is not closed. */ |
387 | stream.release (); | |
6e7bc05c | 388 | |
895b8f30 | 389 | ui.release (); |
4b6749b9 | 390 | } |
60eb5395 PA |
391 | |
392 | printf_unfiltered ("New UI allocated\n"); | |
393 | } | |
394 | ||
c906108c SS |
395 | /* Handler for SIGHUP. */ |
396 | ||
397 | #ifdef SIGHUP | |
392a587b | 398 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 399 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 400 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
401 | /* static */ void |
402 | quit_cover (void) | |
c906108c | 403 | { |
e360902b PA |
404 | /* Stop asking user for confirmation --- we're exiting. This |
405 | prevents asking the user dumb questions. */ | |
406 | confirm = 0; | |
c5aa993b | 407 | quit_command ((char *) 0, 0); |
c906108c SS |
408 | } |
409 | #endif /* defined SIGHUP */ | |
410 | \f | |
7a9dd1b2 | 411 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 412 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 413 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 414 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 415 | /* static */ int source_line_number; |
c906108c SS |
416 | |
417 | /* Name of the file we are sourcing. */ | |
392a587b | 418 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 419 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 420 | event-top.c into this file, top.c. */ |
6caa91b6 | 421 | /* static */ std::string source_file_name; |
c906108c | 422 | |
c906108c SS |
423 | /* Read commands from STREAM. */ |
424 | void | |
fba45db2 | 425 | read_command_file (FILE *stream) |
c906108c | 426 | { |
f38d3ad1 | 427 | struct ui *ui = current_ui; |
c906108c | 428 | |
3c9ebddd TT |
429 | scoped_restore save_instream |
430 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
431 | |
432 | /* Read commands from `instream' and execute them until end of file | |
433 | or error reading instream. */ | |
434 | ||
f38d3ad1 | 435 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 | 436 | { |
992a7040 | 437 | const char *command; |
faa4ebe1 PA |
438 | |
439 | /* Get a command-line. This calls the readline package. */ | |
89fbedf3 | 440 | command = command_line_input (NULL, NULL); |
faa4ebe1 PA |
441 | if (command == NULL) |
442 | break; | |
443 | command_handler (command); | |
444 | } | |
c906108c SS |
445 | } |
446 | \f | |
507f3c78 | 447 | void (*pre_init_ui_hook) (void); |
c906108c | 448 | |
e41a3b1a | 449 | #ifdef __MSDOS__ |
70976b65 | 450 | static void |
e41a3b1a AC |
451 | do_chdir_cleanup (void *old_dir) |
452 | { | |
f515a1d6 | 453 | chdir ((const char *) old_dir); |
b8c9b27d | 454 | xfree (old_dir); |
e41a3b1a AC |
455 | } |
456 | #endif | |
457 | ||
54f70bc1 TT |
458 | scoped_value_mark |
459 | prepare_execute_command () | |
4e5d721f | 460 | { |
371d5dec MS |
461 | /* With multiple threads running while the one we're examining is |
462 | stopped, the dcache can get stale without us being able to detect | |
463 | it. For the duration of the command, though, use the dcache to | |
464 | help things like backtrace. */ | |
4e5d721f DE |
465 | if (non_stop) |
466 | target_dcache_invalidate (); | |
028d0ed5 | 467 | |
54f70bc1 | 468 | return scoped_value_mark (); |
4e5d721f DE |
469 | } |
470 | ||
77cce10f PA |
471 | /* Tell the user if the language has changed (except first time) after |
472 | executing a command. */ | |
473 | ||
474 | void | |
475 | check_frame_language_change (void) | |
476 | { | |
477 | static int warned = 0; | |
7ff38b1c | 478 | struct frame_info *frame; |
77cce10f PA |
479 | |
480 | /* First make sure that a new frame has been selected, in case the | |
481 | command or the hooks changed the program state. */ | |
7ff38b1c | 482 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
483 | if (current_language != expected_language) |
484 | { | |
485 | if (language_mode == language_mode_auto && info_verbose) | |
486 | { | |
487 | language_info (1); /* Print what changed. */ | |
488 | } | |
489 | warned = 0; | |
490 | } | |
491 | ||
492 | /* Warn the user if the working language does not match the language | |
493 | of the current frame. Only warn the user if we are actually | |
494 | running the program, i.e. there is a stack. */ | |
495 | /* FIXME: This should be cacheing the frame and only running when | |
496 | the frame changes. */ | |
497 | ||
498 | if (has_stack_frames ()) | |
499 | { | |
500 | enum language flang; | |
501 | ||
7ff38b1c | 502 | flang = get_frame_language (frame); |
77cce10f PA |
503 | if (!warned |
504 | && flang != language_unknown | |
505 | && flang != current_language->la_language) | |
506 | { | |
34916edc | 507 | printf_filtered ("%s\n", _(lang_frame_mismatch_warn)); |
77cce10f PA |
508 | warned = 1; |
509 | } | |
510 | } | |
511 | } | |
512 | ||
98880d46 PA |
513 | /* See top.h. */ |
514 | ||
0b333c5e PA |
515 | void |
516 | wait_sync_command_done (void) | |
517 | { | |
4295e285 | 518 | /* Processing events may change the current UI. */ |
4b6749b9 | 519 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
520 | struct ui *ui = current_ui; |
521 | ||
0b333c5e | 522 | while (gdb_do_one_event () >= 0) |
4295e285 | 523 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
524 | break; |
525 | } | |
526 | ||
527 | /* See top.h. */ | |
528 | ||
98880d46 PA |
529 | void |
530 | maybe_wait_sync_command_done (int was_sync) | |
531 | { | |
532 | /* If the interpreter is in sync mode (we're running a user | |
533 | command's list, running command hooks or similars), and we | |
534 | just ran a synchronous command that started the target, wait | |
535 | for that command to end. */ | |
3b12939d PA |
536 | if (!current_ui->async |
537 | && !was_sync | |
538 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 539 | wait_sync_command_done (); |
98880d46 PA |
540 | } |
541 | ||
85c4be7c TT |
542 | /* See command.h. */ |
543 | ||
544 | void | |
545 | set_repeat_arguments (const char *args) | |
546 | { | |
547 | repeat_arguments = args; | |
548 | } | |
549 | ||
648bf667 | 550 | /* Execute the line P as a command, in the current user context. |
d318976c | 551 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 552 | |
d318976c | 553 | void |
95a6b0a1 | 554 | execute_command (const char *p, int from_tty) |
c906108c | 555 | { |
52f0bd74 | 556 | struct cmd_list_element *c; |
95a6b0a1 TT |
557 | const char *line; |
558 | const char *cmd_start = p; | |
4e5d721f | 559 | |
694c6bf5 | 560 | auto cleanup_if_error = make_scope_exit (bpstat_clear_actions); |
54f70bc1 | 561 | scoped_value_mark cleanup = prepare_execute_command (); |
c906108c | 562 | |
d318976c FN |
563 | /* This can happen when command_line_input hits end of file. */ |
564 | if (p == NULL) | |
5fe41fbf | 565 | { |
694c6bf5 | 566 | cleanup_if_error.release (); |
5fe41fbf TT |
567 | return; |
568 | } | |
c906108c | 569 | |
49d03eab | 570 | target_log_command (p); |
8b93c638 | 571 | |
d318976c FN |
572 | while (*p == ' ' || *p == '\t') |
573 | p++; | |
574 | if (*p) | |
8b93c638 | 575 | { |
6f937416 | 576 | const char *cmd = p; |
95a6b0a1 | 577 | const char *arg; |
cf00cd6f PW |
578 | std::string default_args; |
579 | std::string default_args_and_arg; | |
3b12939d | 580 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 581 | |
d318976c | 582 | line = p; |
8b93c638 | 583 | |
16026cd7 | 584 | /* If trace-commands is set then this will print this command. */ |
1263a9d5 | 585 | print_command_trace ("%s", p); |
16026cd7 | 586 | |
cf00cd6f | 587 | c = lookup_cmd (&cmd, cmdlist, "", &default_args, 0, 1); |
95a6b0a1 | 588 | p = cmd; |
8b93c638 | 589 | |
85c4be7c TT |
590 | scoped_restore save_repeat_args |
591 | = make_scoped_restore (&repeat_arguments, nullptr); | |
95a6b0a1 | 592 | const char *args_pointer = p; |
85c4be7c | 593 | |
cf00cd6f PW |
594 | if (!default_args.empty ()) |
595 | { | |
596 | if (*p != '\0') | |
597 | default_args_and_arg = default_args + ' ' + p; | |
598 | else | |
599 | default_args_and_arg = default_args; | |
600 | arg = default_args_and_arg.c_str (); | |
601 | } | |
602 | else | |
603 | { | |
604 | /* Pass null arg rather than an empty one. */ | |
605 | arg = *p == '\0' ? nullptr : p; | |
606 | } | |
8b93c638 | 607 | |
9f60d481 AC |
608 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
609 | while the is_complete_command(cfunc) test is just plain | |
610 | bogus. They should both be replaced by a test of the form | |
611 | c->strip_trailing_white_space_p. */ | |
612 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
613 | can't be replaced with func. This is because it is the | |
614 | cfunc, and not the func, that has the value that the | |
615 | is_complete_command hack is testing for. */ | |
616 | /* Clear off trailing whitespace, except for set and complete | |
617 | command. */ | |
95a6b0a1 | 618 | std::string without_whitespace; |
d318976c FN |
619 | if (arg |
620 | && c->type != set_cmd | |
bbaca940 | 621 | && !is_complete_command (c)) |
8b93c638 | 622 | { |
95a6b0a1 TT |
623 | const char *old_end = arg + strlen (arg) - 1; |
624 | p = old_end; | |
d318976c FN |
625 | while (p >= arg && (*p == ' ' || *p == '\t')) |
626 | p--; | |
95a6b0a1 TT |
627 | if (p != old_end) |
628 | { | |
629 | without_whitespace = std::string (arg, p + 1); | |
630 | arg = without_whitespace.c_str (); | |
631 | } | |
8b93c638 JM |
632 | } |
633 | ||
371d5dec | 634 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 635 | execute_cmd_pre_hook (c); |
c906108c | 636 | |
1f2bdf09 | 637 | if (c->deprecated_warn_user) |
6f937416 | 638 | deprecated_cmd_warning (line); |
c906108c | 639 | |
7d74f244 | 640 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 641 | if (c->theclass == class_user && c->user_commands) |
d318976c | 642 | execute_user_command (c, arg); |
c6ac7fc9 PW |
643 | else if (c->theclass == class_user |
644 | && c->prefixlist && !c->allow_unknown) | |
645 | /* If this is a user defined prefix that does not allow unknown | |
646 | (in other words, C is a prefix command and not a command | |
647 | that can be followed by its args), report the list of | |
648 | subcommands. */ | |
649 | { | |
650 | printf_unfiltered | |
651 | ("\"%.*s\" must be followed by the name of a subcommand.\n", | |
652 | (int) strlen (c->prefixname) - 1, c->prefixname); | |
653 | help_list (*c->prefixlist, c->prefixname, all_commands, gdb_stdout); | |
654 | } | |
5b9afe8a YQ |
655 | else if (c->type == set_cmd) |
656 | do_set_command (arg, from_tty, c); | |
657 | else if (c->type == show_cmd) | |
658 | do_show_command (arg, from_tty, c); | |
f436dd25 | 659 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 660 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 661 | else if (deprecated_call_command_hook) |
050a2e1d | 662 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 663 | else |
050a2e1d | 664 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 665 | |
98880d46 | 666 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 667 | |
371d5dec | 668 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 669 | execute_cmd_post_hook (c); |
c906108c | 670 | |
95a6b0a1 | 671 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
672 | { |
673 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
674 | strcpy (saved_command_line + (args_pointer - cmd_start), |
675 | repeat_arguments); | |
85c4be7c | 676 | } |
c906108c SS |
677 | } |
678 | ||
0ca1fc29 JB |
679 | /* Only perform the frame-language-change check if the command |
680 | we just finished executing did not resume the inferior's execution. | |
681 | If it did resume the inferior, we will do that check after | |
682 | the inferior stopped. */ | |
00431a78 | 683 | if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING) |
0ca1fc29 | 684 | check_frame_language_change (); |
028d0ed5 | 685 | |
694c6bf5 | 686 | cleanup_if_error.release (); |
c906108c SS |
687 | } |
688 | ||
b8fd0918 PW |
689 | /* Run execute_command for P and FROM_TTY. Sends its output to FILE, |
690 | do not display it to the screen. BATCH_FLAG will be | |
5da1313b JK |
691 | temporarily set to true. */ |
692 | ||
b8fd0918 PW |
693 | void |
694 | execute_command_to_ui_file (struct ui_file *file, const char *p, int from_tty) | |
5da1313b | 695 | { |
5da1313b JK |
696 | /* GDB_STDOUT should be better already restored during these |
697 | restoration callbacks. */ | |
b95de2b7 | 698 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 699 | |
b7b633e9 | 700 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 701 | |
ca5909c7 | 702 | { |
b8fd0918 | 703 | current_uiout->redirect (file); |
ca5909c7 TT |
704 | ui_out_redirect_pop redirect_popper (current_uiout); |
705 | ||
706 | scoped_restore save_stdout | |
b8fd0918 | 707 | = make_scoped_restore (&gdb_stdout, file); |
ca5909c7 | 708 | scoped_restore save_stderr |
b8fd0918 | 709 | = make_scoped_restore (&gdb_stderr, file); |
ca5909c7 | 710 | scoped_restore save_stdlog |
b8fd0918 | 711 | = make_scoped_restore (&gdb_stdlog, file); |
ca5909c7 | 712 | scoped_restore save_stdtarg |
b8fd0918 | 713 | = make_scoped_restore (&gdb_stdtarg, file); |
ca5909c7 | 714 | scoped_restore save_stdtargerr |
b8fd0918 | 715 | = make_scoped_restore (&gdb_stdtargerr, file); |
ca5909c7 TT |
716 | |
717 | execute_command (p, from_tty); | |
718 | } | |
b8fd0918 PW |
719 | } |
720 | ||
721 | /* Run execute_command for P and FROM_TTY. Capture its output into the | |
722 | returned string, do not display it to the screen. BATCH_FLAG will be | |
723 | temporarily set to true. */ | |
724 | ||
725 | std::string | |
726 | execute_command_to_string (const char *p, int from_tty, | |
727 | bool term_out) | |
728 | { | |
729 | string_file str_file (term_out); | |
5da1313b | 730 | |
b8fd0918 | 731 | execute_command_to_ui_file (&str_file, p, from_tty); |
d7e74731 | 732 | return std::move (str_file.string ()); |
5da1313b JK |
733 | } |
734 | ||
d318976c | 735 | \f |
47a80e90 TT |
736 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
737 | set via prevent_dont_repeat. */ | |
738 | ||
739 | static int suppress_dont_repeat = 0; | |
740 | ||
68bb5386 | 741 | /* See command.h */ |
9e0b60a8 | 742 | |
d318976c FN |
743 | void |
744 | dont_repeat (void) | |
9e0b60a8 | 745 | { |
f38d3ad1 PA |
746 | struct ui *ui = current_ui; |
747 | ||
47a80e90 | 748 | if (suppress_dont_repeat || server_command) |
d318976c | 749 | return; |
9e0b60a8 | 750 | |
d318976c | 751 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
752 | thing read from stdin in line and don't want to delete it. Null |
753 | lines won't repeat here in any case. */ | |
268a799a | 754 | if (ui->instream == ui->stdin_stream) |
68bb5386 PW |
755 | { |
756 | *saved_command_line = 0; | |
757 | repeat_arguments = NULL; | |
758 | } | |
759 | } | |
760 | ||
761 | /* See command.h */ | |
762 | ||
fdbc9870 | 763 | const char * |
68bb5386 PW |
764 | repeat_previous () |
765 | { | |
766 | /* Do not repeat this command, as this command is a repeating command. */ | |
767 | dont_repeat (); | |
768 | ||
769 | /* We cannot free saved_command_line, as this line is being executed, | |
770 | so swap it with previous_saved_command_line. */ | |
771 | std::swap (previous_saved_command_line, saved_command_line); | |
772 | std::swap (previous_repeat_arguments, repeat_arguments); | |
fdbc9870 PA |
773 | |
774 | const char *prev = skip_spaces (get_saved_command_line ()); | |
775 | if (*prev == '\0') | |
776 | error (_("No previous command to relaunch")); | |
777 | return prev; | |
9e0b60a8 | 778 | } |
47a80e90 | 779 | |
68bb5386 | 780 | /* See command.h. */ |
47a80e90 | 781 | |
1ac32117 | 782 | scoped_restore_tmpl<int> |
47a80e90 TT |
783 | prevent_dont_repeat (void) |
784 | { | |
1ac32117 | 785 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
786 | } |
787 | ||
68bb5386 PW |
788 | /* See command.h. */ |
789 | ||
790 | char * | |
791 | get_saved_command_line () | |
792 | { | |
793 | return saved_command_line; | |
794 | } | |
795 | ||
796 | /* See command.h. */ | |
797 | ||
798 | void | |
799 | save_command_line (const char *cmd) | |
800 | { | |
801 | xfree (previous_saved_command_line); | |
802 | previous_saved_command_line = saved_command_line; | |
803 | previous_repeat_arguments = repeat_arguments; | |
804 | saved_command_line = xstrdup (cmd); | |
805 | repeat_arguments = NULL; | |
806 | } | |
807 | ||
d318976c FN |
808 | \f |
809 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 810 | |
7a3bde34 | 811 | It prints PROMPT once at the start. |
d318976c FN |
812 | Action is compatible with "readline", e.g. space for the result is |
813 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 814 | |
d318976c | 815 | A NULL return means end of file. */ |
c5c136ea PA |
816 | |
817 | static char * | |
7a3bde34 | 818 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 819 | { |
7a3bde34 | 820 | struct buffer line_buffer; |
f38d3ad1 | 821 | struct ui *ui = current_ui; |
3212b858 PA |
822 | /* Read from stdin if we are executing a user defined command. This |
823 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 824 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 825 | int fd = fileno (stream); |
9e0b60a8 | 826 | |
7a3bde34 PA |
827 | buffer_init (&line_buffer); |
828 | ||
829 | if (prompt != NULL) | |
9e0b60a8 | 830 | { |
d318976c FN |
831 | /* Don't use a _filtered function here. It causes the assumed |
832 | character position to be off, since the newline we read from | |
833 | the user is not accounted for. */ | |
7a3bde34 | 834 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
835 | gdb_flush (gdb_stdout); |
836 | } | |
837 | ||
9e0b60a8 JM |
838 | while (1) |
839 | { | |
7a3bde34 | 840 | int c; |
3212b858 | 841 | fd_set readfds; |
7a3bde34 | 842 | |
3212b858 PA |
843 | QUIT; |
844 | ||
845 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 846 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
847 | FD_ZERO (&readfds); |
848 | FD_SET (fd, &readfds); | |
f0881b37 | 849 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
850 | { |
851 | if (errno == EINTR) | |
852 | { | |
853 | /* If this was ctrl-c, the QUIT above handles it. */ | |
854 | continue; | |
855 | } | |
856 | perror_with_name (("select")); | |
857 | } | |
858 | ||
859 | c = fgetc (stream); | |
9e0b60a8 | 860 | |
d318976c | 861 | if (c == EOF) |
9e0b60a8 | 862 | { |
7a3bde34 | 863 | if (line_buffer.used_size > 0) |
d318976c FN |
864 | /* The last line does not end with a newline. Return it, and |
865 | if we are called again fgetc will still return EOF and | |
866 | we'll return NULL then. */ | |
9e0b60a8 | 867 | break; |
7a3bde34 | 868 | xfree (buffer_finish (&line_buffer)); |
d318976c | 869 | return NULL; |
9e0b60a8 | 870 | } |
c5aa993b | 871 | |
d318976c | 872 | if (c == '\n') |
9e0b60a8 | 873 | { |
7a3bde34 PA |
874 | if (line_buffer.used_size > 0 |
875 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
876 | line_buffer.used_size--; | |
d318976c | 877 | break; |
9e0b60a8 | 878 | } |
9e0b60a8 | 879 | |
7a3bde34 | 880 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
881 | } |
882 | ||
7a3bde34 PA |
883 | buffer_grow_char (&line_buffer, '\0'); |
884 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
885 | } |
886 | ||
d318976c FN |
887 | /* Variables which control command line editing and history |
888 | substitution. These variables are given default values at the end | |
889 | of this file. */ | |
491144b5 | 890 | static bool command_editing_p; |
920d2a44 | 891 | |
d318976c FN |
892 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
893 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 894 | event-top.c into this file, top.c. */ |
920d2a44 | 895 | |
491144b5 | 896 | /* static */ bool history_expansion_p; |
920d2a44 | 897 | |
63e163f2 AB |
898 | /* Should we write out the command history on exit? In order to write out |
899 | the history both this flag must be true, and the history_filename | |
900 | variable must be set to something sensible. */ | |
491144b5 | 901 | static bool write_history_p; |
63e163f2 AB |
902 | |
903 | /* Implement 'show history save'. */ | |
920d2a44 AC |
904 | static void |
905 | show_write_history_p (struct ui_file *file, int from_tty, | |
906 | struct cmd_list_element *c, const char *value) | |
907 | { | |
63e163f2 AB |
908 | if (!write_history_p || !history_filename_empty ()) |
909 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
910 | value); | |
911 | else | |
912 | fprintf_filtered (file, _("Saving of the history is disabled due to " | |
913 | "the value of 'history filename'.\n")); | |
920d2a44 AC |
914 | } |
915 | ||
840a9a1f | 916 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
917 | command. The value -1 means unlimited, and -2 means undefined. */ |
918 | static int history_size_setshow_var = -2; | |
840a9a1f | 919 | |
920d2a44 AC |
920 | static void |
921 | show_history_size (struct ui_file *file, int from_tty, | |
922 | struct cmd_list_element *c, const char *value) | |
923 | { | |
924 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
925 | value); | |
926 | } | |
927 | ||
fc637f04 PP |
928 | /* Variable associated with the "history remove-duplicates" option. |
929 | The value -1 means unlimited. */ | |
930 | static int history_remove_duplicates = 0; | |
931 | ||
932 | static void | |
933 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
934 | struct cmd_list_element *c, const char *value) | |
935 | { | |
936 | fprintf_filtered (file, | |
937 | _("The number of history entries to look back at for " | |
938 | "duplicates is %s.\n"), | |
939 | value); | |
940 | } | |
941 | ||
63e163f2 AB |
942 | /* The name of the file in which GDB history will be written. If this is |
943 | set to NULL, of the empty string then history will not be written. */ | |
d318976c | 944 | static char *history_filename; |
63e163f2 AB |
945 | |
946 | /* Return true if the history_filename is either NULL or the empty string, | |
947 | indicating that we should not try to read, nor write out the history. */ | |
948 | static bool | |
949 | history_filename_empty (void) | |
950 | { | |
951 | return (history_filename == nullptr || *history_filename == '\0'); | |
952 | } | |
953 | ||
954 | /* Implement 'show history filename'. */ | |
920d2a44 AC |
955 | static void |
956 | show_history_filename (struct ui_file *file, int from_tty, | |
957 | struct cmd_list_element *c, const char *value) | |
958 | { | |
63e163f2 AB |
959 | if (!history_filename_empty ()) |
960 | fprintf_filtered (file, _("The filename in which to record " | |
961 | "the command history is \"%ps\".\n"), | |
962 | styled_string (file_name_style.style (), value)); | |
963 | else | |
964 | fprintf_filtered (file, _("There is no filename currently set for " | |
965 | "recording the command history in.\n")); | |
920d2a44 | 966 | } |
9e0b60a8 | 967 | |
b4f5539f | 968 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 969 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
970 | a single gdb invocation. At the ordinary top-level prompt we might |
971 | be using the async readline. That means we can't use | |
972 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
973 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
974 | `define'), gdb wants a synchronous response. |
975 | ||
976 | We used to call readline() directly, running it in synchronous | |
977 | mode. But mixing modes this way is not supported, and as of | |
978 | readline 5.x it no longer works; the arrow keys come unbound during | |
979 | the synchronous call. So we make a nested call into the event | |
980 | loop. That's what gdb_readline_wrapper is for. */ | |
981 | ||
982 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
983 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
984 | the user types Control-D for EOF. */ | |
985 | static int gdb_readline_wrapper_done; | |
986 | ||
987 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
988 | is seen. */ | |
989 | static char *gdb_readline_wrapper_result; | |
990 | ||
991 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
992 | to be called after the newline is processed (which will redisplay | |
993 | the prompt). But in gdb_readline_wrapper we will not get a new | |
994 | prompt until the next call, or until we return to the event loop. | |
995 | So we disable this hook around the newline and restore it before we | |
996 | return. */ | |
997 | static void (*saved_after_char_processing_hook) (void); | |
998 | ||
948578a9 | 999 | |
948578a9 PP |
1000 | /* See top.h. */ |
1001 | ||
1002 | int | |
dbf30ca3 | 1003 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 1004 | { |
dbf30ca3 | 1005 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
1006 | } |
1007 | ||
1008 | ||
2e03ee74 DJ |
1009 | /* This function is called when readline has seen a complete line of |
1010 | text. */ | |
1011 | ||
1012 | static void | |
95bc9f0b | 1013 | gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line) |
2e03ee74 DJ |
1014 | { |
1015 | gdb_assert (!gdb_readline_wrapper_done); | |
95bc9f0b | 1016 | gdb_readline_wrapper_result = line.release (); |
2e03ee74 DJ |
1017 | gdb_readline_wrapper_done = 1; |
1018 | ||
1019 | /* Prevent operate-and-get-next from acting too early. */ | |
1020 | saved_after_char_processing_hook = after_char_processing_hook; | |
1021 | after_char_processing_hook = NULL; | |
1b05479a DJ |
1022 | |
1023 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 1024 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
1025 | reinstall the callback handler, which puts the terminal in raw |
1026 | mode (or in readline lingo, in prepped state), when we're next | |
1027 | ready to process user input, either in display_gdb_prompt, or if | |
1028 | we're handling an asynchronous target event and running in the | |
1029 | background, just before returning to the event loop to process | |
1030 | further input (or more target events). */ | |
3c216924 | 1031 | if (current_ui->command_editing) |
d3d4baed | 1032 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
1033 | } |
1034 | ||
1dbeed45 | 1035 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 1036 | { |
1dbeed45 TT |
1037 | public: |
1038 | gdb_readline_wrapper_cleanup () | |
1039 | : m_handler_orig (current_ui->input_handler), | |
1040 | m_already_prompted_orig (current_ui->command_editing | |
1041 | ? rl_already_prompted : 0), | |
1042 | m_target_is_async_orig (target_is_async_p ()), | |
1043 | m_save_ui (¤t_ui) | |
1044 | { | |
1045 | current_ui->input_handler = gdb_readline_wrapper_line; | |
1046 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 1047 | |
1dbeed45 TT |
1048 | if (m_target_is_async_orig) |
1049 | target_async (0); | |
1050 | } | |
2e03ee74 | 1051 | |
1dbeed45 TT |
1052 | ~gdb_readline_wrapper_cleanup () |
1053 | { | |
1054 | struct ui *ui = current_ui; | |
0017922d | 1055 | |
1dbeed45 TT |
1056 | if (ui->command_editing) |
1057 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 1058 | |
1dbeed45 TT |
1059 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
1060 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 1061 | |
1dbeed45 TT |
1062 | /* Don't restore our input handler in readline yet. That would make |
1063 | readline prep the terminal (putting it in raw mode), while the | |
1064 | line we just read may trigger execution of a command that expects | |
1065 | the terminal in the default cooked/canonical mode, such as e.g., | |
1066 | running Python's interactive online help utility. See | |
1067 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 1068 | |
1dbeed45 TT |
1069 | gdb_readline_wrapper_result = NULL; |
1070 | gdb_readline_wrapper_done = 0; | |
1071 | ui->secondary_prompt_depth--; | |
1072 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 1073 | |
1dbeed45 TT |
1074 | after_char_processing_hook = saved_after_char_processing_hook; |
1075 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 1076 | |
1dbeed45 TT |
1077 | if (m_target_is_async_orig) |
1078 | target_async (1); | |
1079 | } | |
2e03ee74 | 1080 | |
1dbeed45 | 1081 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 1082 | |
1dbeed45 | 1083 | private: |
2e03ee74 | 1084 | |
95bc9f0b | 1085 | void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&); |
1dbeed45 | 1086 | int m_already_prompted_orig; |
93d6eb10 | 1087 | |
1dbeed45 TT |
1088 | /* Whether the target was async. */ |
1089 | int m_target_is_async_orig; | |
2e03ee74 | 1090 | |
4295e285 | 1091 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
1092 | scoped_restore_tmpl<struct ui *> m_save_ui; |
1093 | }; | |
1094 | ||
1095 | char * | |
1096 | gdb_readline_wrapper (const char *prompt) | |
1097 | { | |
1098 | struct ui *ui = current_ui; | |
4295e285 | 1099 | |
1dbeed45 | 1100 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 1101 | |
6e5d74e7 PA |
1102 | /* Display our prompt and prevent double prompt display. Don't pass |
1103 | down a NULL prompt, since that has special meaning for | |
1104 | display_gdb_prompt -- it indicates a request to print the primary | |
1105 | prompt, while we want a secondary prompt here. */ | |
1106 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1107 | if (ui->command_editing) |
1108 | rl_already_prompted = 1; | |
2e03ee74 | 1109 | |
362646f5 | 1110 | if (after_char_processing_hook) |
2e03ee74 DJ |
1111 | (*after_char_processing_hook) (); |
1112 | gdb_assert (after_char_processing_hook == NULL); | |
1113 | ||
e0dd0826 | 1114 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1115 | if (gdb_readline_wrapper_done) |
1116 | break; | |
b4f5539f | 1117 | |
1dbeed45 | 1118 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1119 | } |
1120 | ||
9e0b60a8 | 1121 | \f |
467d8519 TT |
1122 | /* The current saved history number from operate-and-get-next. |
1123 | This is -1 if not valid. */ | |
1124 | static int operate_saved_history = -1; | |
1125 | ||
1126 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1127 | do its work. */ | |
b9362cc7 | 1128 | static void |
5ae5f592 | 1129 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1130 | { |
1131 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1132 | |
467d8519 TT |
1133 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1134 | rl_get_previous_history (delta, 0); | |
1135 | operate_saved_history = -1; | |
1136 | ||
1137 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1138 | rl_redisplay (); |
467d8519 TT |
1139 | |
1140 | after_char_processing_hook = NULL; | |
1141 | rl_pre_input_hook = NULL; | |
1142 | } | |
1143 | ||
1144 | /* This is a gdb-local readline command handler. It accepts the | |
1145 | current command line (like RET does) and, if this command was taken | |
1146 | from the history, arranges for the next command in the history to | |
1147 | appear on the command line when the prompt returns. | |
1148 | We ignore the arguments. */ | |
1149 | static int | |
1150 | gdb_rl_operate_and_get_next (int count, int key) | |
1151 | { | |
b5686e99 MK |
1152 | int where; |
1153 | ||
362646f5 AC |
1154 | /* Use the async hook. */ |
1155 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1156 | |
b5686e99 MK |
1157 | /* Find the current line, and find the next line to use. */ |
1158 | where = where_history(); | |
1159 | ||
1fb2e2b5 PA |
1160 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1161 | || (where >= history_length - 1)) | |
b5686e99 MK |
1162 | operate_saved_history = where; |
1163 | else | |
1164 | operate_saved_history = where + 1; | |
1165 | ||
467d8519 TT |
1166 | return rl_newline (1, key); |
1167 | } | |
08b13bdd PP |
1168 | |
1169 | /* Number of user commands executed during this session. */ | |
1170 | ||
1171 | static int command_count = 0; | |
1172 | ||
1173 | /* Add the user command COMMAND to the input history list. */ | |
1174 | ||
1175 | void | |
1176 | gdb_add_history (const char *command) | |
1177 | { | |
08b13bdd | 1178 | command_count++; |
fc637f04 PP |
1179 | |
1180 | if (history_remove_duplicates != 0) | |
1181 | { | |
1182 | int lookbehind; | |
1183 | int lookbehind_threshold; | |
1184 | ||
1185 | /* The lookbehind threshold for finding a duplicate history entry is | |
1186 | bounded by command_count because we can't meaningfully delete | |
1187 | history entries that are already stored in the history file since | |
1188 | the history file is appended to. */ | |
1189 | if (history_remove_duplicates == -1 | |
1190 | || history_remove_duplicates > command_count) | |
1191 | lookbehind_threshold = command_count; | |
1192 | else | |
1193 | lookbehind_threshold = history_remove_duplicates; | |
1194 | ||
1195 | using_history (); | |
1196 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1197 | { | |
1198 | HIST_ENTRY *temp = previous_history (); | |
1199 | ||
1200 | if (temp == NULL) | |
1201 | break; | |
1202 | ||
1203 | if (strcmp (temp->line, command) == 0) | |
1204 | { | |
1205 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1206 | command_count--; | |
1207 | free_history_entry (prev); | |
1208 | break; | |
1209 | } | |
1210 | } | |
1211 | using_history (); | |
1212 | } | |
1213 | ||
1214 | add_history (command); | |
08b13bdd PP |
1215 | } |
1216 | ||
1217 | /* Safely append new history entries to the history file in a corruption-free | |
1218 | way using an intermediate local history file. */ | |
1219 | ||
1220 | static void | |
1221 | gdb_safe_append_history (void) | |
1222 | { | |
1223 | int ret, saved_errno; | |
08b13bdd | 1224 | |
8cff8730 TT |
1225 | std::string local_history_filename |
1226 | = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ()); | |
08b13bdd | 1227 | |
8cff8730 | 1228 | ret = rename (history_filename, local_history_filename.c_str ()); |
08b13bdd PP |
1229 | saved_errno = errno; |
1230 | if (ret < 0 && saved_errno != ENOENT) | |
1231 | { | |
6ec1d75e PW |
1232 | warning (_("Could not rename %ps to %ps: %s"), |
1233 | styled_string (file_name_style.style (), history_filename), | |
1234 | styled_string (file_name_style.style (), | |
1235 | local_history_filename.c_str ()), | |
08b13bdd PP |
1236 | safe_strerror (saved_errno)); |
1237 | } | |
1238 | else | |
1239 | { | |
1240 | if (ret < 0) | |
1241 | { | |
1242 | /* If the rename failed with ENOENT then either the global history | |
1243 | file never existed in the first place or another GDB process is | |
1244 | currently appending to it (and has thus temporarily renamed it). | |
1245 | Since we can't distinguish between these two cases, we have to | |
1246 | conservatively assume the first case and therefore must write out | |
1247 | (not append) our known history to our local history file and try | |
1248 | to move it back anyway. Otherwise a global history file would | |
1249 | never get created! */ | |
1250 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1251 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1252 | } |
1253 | else | |
1254 | { | |
8cff8730 | 1255 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1256 | if (history_is_stifled ()) |
8cff8730 TT |
1257 | history_truncate_file (local_history_filename.c_str (), |
1258 | history_max_entries); | |
08b13bdd PP |
1259 | } |
1260 | ||
8cff8730 | 1261 | ret = rename (local_history_filename.c_str (), history_filename); |
08b13bdd PP |
1262 | saved_errno = errno; |
1263 | if (ret < 0 && saved_errno != EEXIST) | |
1264 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1265 | local_history_filename.c_str (), history_filename, |
08b13bdd PP |
1266 | safe_strerror (saved_errno)); |
1267 | } | |
08b13bdd PP |
1268 | } |
1269 | ||
b69d38af PA |
1270 | /* Read one line from the command input stream `instream' into a local |
1271 | static buffer. The buffer is made bigger as necessary. Returns | |
1272 | the address of the start of the line. | |
9e0b60a8 | 1273 | |
d318976c | 1274 | NULL is returned for end of file. |
9e0b60a8 | 1275 | |
b69d38af PA |
1276 | This routine either uses fancy command line editing or simple input |
1277 | as the user has requested. */ | |
10689f25 | 1278 | |
992a7040 | 1279 | const char * |
89fbedf3 | 1280 | command_line_input (const char *prompt_arg, const char *annotation_suffix) |
9e0b60a8 | 1281 | { |
b69d38af PA |
1282 | static struct buffer cmd_line_buffer; |
1283 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1284 | struct ui *ui = current_ui; |
38bcc89d | 1285 | const char *prompt = prompt_arg; |
b69d38af | 1286 | char *cmd; |
268a799a | 1287 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1288 | |
1289 | /* The annotation suffix must be non-NULL. */ | |
1290 | if (annotation_suffix == NULL) | |
1291 | annotation_suffix = ""; | |
9e0b60a8 | 1292 | |
268a799a | 1293 | if (from_tty && annotation_level > 1) |
d318976c | 1294 | { |
38bcc89d SM |
1295 | char *local_prompt; |
1296 | ||
224c3ddb SM |
1297 | local_prompt |
1298 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1299 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1300 | if (prompt == NULL) |
d318976c FN |
1301 | local_prompt[0] = '\0'; |
1302 | else | |
38bcc89d | 1303 | strcpy (local_prompt, prompt); |
d318976c FN |
1304 | strcat (local_prompt, "\n\032\032"); |
1305 | strcat (local_prompt, annotation_suffix); | |
1306 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1307 | |
1308 | prompt = local_prompt; | |
d318976c | 1309 | } |
9e0b60a8 | 1310 | |
b69d38af | 1311 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1312 | { |
b69d38af PA |
1313 | buffer_init (&cmd_line_buffer); |
1314 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1315 | } |
9e0b60a8 | 1316 | |
b69d38af PA |
1317 | /* Starting a new command line. */ |
1318 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1319 | |
6aa899ce | 1320 | #ifdef SIGTSTP |
d318976c | 1321 | if (job_control) |
6aa899ce | 1322 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1323 | #endif |
1324 | ||
1325 | while (1) | |
9e0b60a8 | 1326 | { |
2139e8dc | 1327 | gdb::unique_xmalloc_ptr<char> rl; |
b69d38af | 1328 | |
371d5dec MS |
1329 | /* Make sure that all output has been output. Some machines may |
1330 | let you get away with leaving out some of the gdb_flush, but | |
1331 | not all. */ | |
d318976c FN |
1332 | wrap_here (""); |
1333 | gdb_flush (gdb_stdout); | |
1334 | gdb_flush (gdb_stderr); | |
1335 | ||
6caa91b6 | 1336 | if (!source_file_name.empty ()) |
637537d0 | 1337 | ++source_line_number; |
d318976c | 1338 | |
268a799a | 1339 | if (from_tty && annotation_level > 1) |
d318976c | 1340 | { |
306d9ac5 DC |
1341 | puts_unfiltered ("\n\032\032pre-"); |
1342 | puts_unfiltered (annotation_suffix); | |
1343 | puts_unfiltered ("\n"); | |
d318976c FN |
1344 | } |
1345 | ||
1346 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1347 | if (deprecated_readline_hook |
1348 | && from_tty | |
1349 | && input_interactive_p (current_ui)) | |
d318976c | 1350 | { |
2139e8dc | 1351 | rl.reset ((*deprecated_readline_hook) (prompt)); |
d318976c | 1352 | } |
268a799a PA |
1353 | else if (command_editing_p |
1354 | && from_tty | |
1355 | && input_interactive_p (current_ui)) | |
d318976c | 1356 | { |
2139e8dc | 1357 | rl.reset (gdb_readline_wrapper (prompt)); |
d318976c | 1358 | } |
9e0b60a8 | 1359 | else |
d318976c | 1360 | { |
2139e8dc | 1361 | rl.reset (gdb_readline_no_editing (prompt)); |
d318976c | 1362 | } |
9e0b60a8 | 1363 | |
2139e8dc | 1364 | cmd = handle_line_of_input (&cmd_line_buffer, rl.get (), |
89fbedf3 | 1365 | 0, annotation_suffix); |
b69d38af | 1366 | if (cmd == (char *) EOF) |
d318976c | 1367 | { |
b69d38af | 1368 | cmd = NULL; |
d318976c | 1369 | break; |
9e0b60a8 | 1370 | } |
b69d38af | 1371 | if (cmd != NULL) |
d318976c | 1372 | break; |
9e0b60a8 | 1373 | |
6e5d74e7 PA |
1374 | /* Got partial input. I.e., got a line that ends with a |
1375 | continuation character (backslash). Suppress printing the | |
1376 | prompt again. */ | |
38bcc89d | 1377 | prompt = NULL; |
d318976c | 1378 | } |
9e0b60a8 | 1379 | |
6aa899ce | 1380 | #ifdef SIGTSTP |
d318976c | 1381 | if (job_control) |
6aa899ce | 1382 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1383 | #endif |
9e0b60a8 | 1384 | |
b69d38af | 1385 | return cmd; |
9e0b60a8 JM |
1386 | } |
1387 | \f | |
c61b06a1 | 1388 | /* See top.h. */ |
9e0b60a8 | 1389 | void |
c61b06a1 | 1390 | print_gdb_version (struct ui_file *stream, bool interactive) |
9e0b60a8 JM |
1391 | { |
1392 | /* From GNU coding standards, first line is meant to be easy for a | |
1393 | program to parse, and is just canonical program name and version | |
371d5dec | 1394 | number, which starts after last space. */ |
9e0b60a8 | 1395 | |
d47032b7 TT |
1396 | ui_file_style style; |
1397 | if (interactive) | |
1398 | { | |
1399 | ui_file_style nstyle = { ui_file_style::MAGENTA, ui_file_style::NONE, | |
1400 | ui_file_style::BOLD }; | |
1401 | style = nstyle; | |
1402 | } | |
1403 | fprintf_styled (stream, style, "GNU gdb %s%s\n", PKGVERSION, version); | |
9e0b60a8 | 1404 | |
371d5dec | 1405 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1406 | |
3e43a32a | 1407 | fprintf_filtered (stream, |
5dd8bf88 | 1408 | "Copyright (C) 2020 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1409 | |
1410 | /* Following the copyright is a brief statement that the program is | |
1411 | free software, that users are free to copy and change it on | |
1412 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1413 | there is no warranty. */ |
9e0b60a8 JM |
1414 | |
1415 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1416 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1417 | \nThis is free software: you are free to change and redistribute it.\n\ | |
c61b06a1 TT |
1418 | There is NO WARRANTY, to the extent permitted by law."); |
1419 | ||
1420 | if (!interactive) | |
1421 | return; | |
1422 | ||
1423 | fprintf_filtered (stream, ("\nType \"show copying\" and " | |
1424 | "\"show warranty\" for details.\n")); | |
9e0b60a8 | 1425 | |
371d5dec | 1426 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1427 | |
1428 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1429 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1430 | { |
3e43a32a MS |
1431 | fprintf_filtered (stream, "--host=%s --target=%s", |
1432 | host_name, target_name); | |
9e0b60a8 JM |
1433 | } |
1434 | else | |
1435 | { | |
1436 | fprintf_filtered (stream, "%s", host_name); | |
1437 | } | |
c61b06a1 TT |
1438 | fprintf_filtered (stream, "\".\n"); |
1439 | ||
1440 | fprintf_filtered (stream, _("Type \"show configuration\" " | |
1441 | "for configuration details.\n")); | |
c16158bc JM |
1442 | |
1443 | if (REPORT_BUGS_TO[0]) | |
1444 | { | |
6eaaf48b | 1445 | fprintf_filtered (stream, |
c61b06a1 | 1446 | _("For bug reporting instructions, please see:\n")); |
1cf55f60 | 1447 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1448 | } |
1cf55f60 PM |
1449 | fprintf_filtered (stream, |
1450 | _("Find the GDB manual and other documentation \ | |
c61b06a1 TT |
1451 | resources online at:\n <http://www.gnu.org/software/gdb/documentation/>.")); |
1452 | fprintf_filtered (stream, "\n\n"); | |
1cf55f60 | 1453 | fprintf_filtered (stream, _("For help, type \"help\".\n")); |
7734102d EZ |
1454 | fprintf_filtered (stream, |
1455 | _("Type \"apropos word\" to search for commands \ | |
1456 | related to \"word\".")); | |
9e0b60a8 | 1457 | } |
6eaaf48b EZ |
1458 | |
1459 | /* Print the details of GDB build-time configuration. */ | |
1460 | void | |
1461 | print_gdb_configuration (struct ui_file *stream) | |
1462 | { | |
1463 | fprintf_filtered (stream, _("\ | |
1464 | This GDB was configured as follows:\n\ | |
1465 | configure --host=%s --target=%s\n\ | |
1466 | "), host_name, target_name); | |
bbde7025 | 1467 | |
6eaaf48b EZ |
1468 | fprintf_filtered (stream, _("\ |
1469 | --with-auto-load-dir=%s\n\ | |
1470 | --with-auto-load-safe-path=%s\n\ | |
1471 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
bbde7025 | 1472 | |
6eaaf48b EZ |
1473 | #if HAVE_LIBEXPAT |
1474 | fprintf_filtered (stream, _("\ | |
1475 | --with-expat\n\ | |
1476 | ")); | |
1477 | #else | |
1478 | fprintf_filtered (stream, _("\ | |
1479 | --without-expat\n\ | |
1480 | ")); | |
1481 | #endif | |
bbde7025 | 1482 | |
6eaaf48b EZ |
1483 | if (GDB_DATADIR[0]) |
1484 | fprintf_filtered (stream, _("\ | |
1485 | --with-gdb-datadir=%s%s\n\ | |
1486 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
bbde7025 | 1487 | |
6eaaf48b EZ |
1488 | #ifdef ICONV_BIN |
1489 | fprintf_filtered (stream, _("\ | |
1490 | --with-iconv-bin=%s%s\n\ | |
1491 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1492 | #endif | |
bbde7025 | 1493 | |
6eaaf48b EZ |
1494 | if (JIT_READER_DIR[0]) |
1495 | fprintf_filtered (stream, _("\ | |
1496 | --with-jit-reader-dir=%s%s\n\ | |
1497 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
bbde7025 | 1498 | |
6eaaf48b EZ |
1499 | #if HAVE_LIBUNWIND_IA64_H |
1500 | fprintf_filtered (stream, _("\ | |
1501 | --with-libunwind-ia64\n\ | |
1502 | ")); | |
1503 | #else | |
1504 | fprintf_filtered (stream, _("\ | |
1505 | --without-libunwind-ia64\n\ | |
1506 | ")); | |
1507 | #endif | |
bbde7025 | 1508 | |
6eaaf48b EZ |
1509 | #if HAVE_LIBLZMA |
1510 | fprintf_filtered (stream, _("\ | |
1511 | --with-lzma\n\ | |
1512 | ")); | |
1513 | #else | |
1514 | fprintf_filtered (stream, _("\ | |
1515 | --without-lzma\n\ | |
1516 | ")); | |
1517 | #endif | |
bbde7025 | 1518 | |
9bd8e0b0 | 1519 | #if HAVE_LIBBABELTRACE |
15b07e4f | 1520 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1521 | --with-babeltrace\n\ |
1522 | ")); | |
1523 | #else | |
15b07e4f | 1524 | fprintf_filtered (stream, _("\ |
0ea8adde | 1525 | --without-babeltrace\n\ |
9bd8e0b0 EZ |
1526 | ")); |
1527 | #endif | |
bbde7025 | 1528 | |
9bd8e0b0 | 1529 | #if HAVE_LIBIPT |
15b07e4f | 1530 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1531 | --with-intel-pt\n\ |
1532 | ")); | |
1533 | #else | |
15b07e4f | 1534 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1535 | --without-intel-pt\n\ |
1536 | ")); | |
1537 | #endif | |
bbde7025 | 1538 | |
9bd8e0b0 | 1539 | #if HAVE_LIBMPFR |
15b07e4f | 1540 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1541 | --with-mpfr\n\ |
1542 | ")); | |
1543 | #else | |
15b07e4f | 1544 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1545 | --without-mpfr\n\ |
1546 | ")); | |
1547 | #endif | |
15b07e4f EZ |
1548 | #if HAVE_LIBXXHASH |
1549 | fprintf_filtered (stream, _("\ | |
1550 | --with-xxhash\n\ | |
1551 | ")); | |
1552 | #else | |
1553 | fprintf_filtered (stream, _("\ | |
1554 | --without-xxhash\n\ | |
1555 | ")); | |
1556 | #endif | |
6eaaf48b EZ |
1557 | #ifdef WITH_PYTHON_PATH |
1558 | fprintf_filtered (stream, _("\ | |
1559 | --with-python=%s%s\n\ | |
1560 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
50c7c5b8 ДП |
1561 | #else |
1562 | fprintf_filtered (stream, _("\ | |
1563 | --without-python\n\ | |
1564 | ")); | |
6eaaf48b | 1565 | #endif |
37825800 AB |
1566 | #ifdef WITH_PYTHON_LIBDIR |
1567 | fprintf_filtered (stream, _("\ | |
1568 | --with-python-libdir=%s%s\n\ | |
1569 | "), WITH_PYTHON_LIBDIR, PYTHON_LIBDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1570 | #else | |
1571 | fprintf_filtered (stream, _("\ | |
1572 | --without-python-libdir\n\ | |
1573 | ")); | |
1574 | #endif | |
bbde7025 | 1575 | |
0d79cdc4 AM |
1576 | #if HAVE_LIBDEBUGINFOD |
1577 | fprintf_filtered (stream, _("\ | |
1578 | --with-debuginfod\n\ | |
1579 | ")); | |
1580 | #else | |
1581 | fprintf_filtered (stream, _("\ | |
1582 | --without-debuginfod\n\ | |
1583 | ")); | |
1584 | #endif | |
1585 | ||
97d66cc6 EZ |
1586 | #if HAVE_GUILE |
1587 | fprintf_filtered (stream, _("\ | |
1588 | --with-guile\n\ | |
1589 | ")); | |
1590 | #else | |
1591 | fprintf_filtered (stream, _("\ | |
1592 | --without-guile\n\ | |
1593 | ")); | |
1594 | #endif | |
bbde7025 | 1595 | |
189b8c2e ST |
1596 | #if HAVE_SOURCE_HIGHLIGHT |
1597 | fprintf_filtered (stream, _("\ | |
1598 | --enable-source-highlight\n\ | |
1599 | ")); | |
1600 | #else | |
1601 | fprintf_filtered (stream, _("\ | |
1602 | --disable-source-highlight\n\ | |
1603 | ")); | |
1604 | #endif | |
bbde7025 | 1605 | |
6eaaf48b EZ |
1606 | #ifdef RELOC_SRCDIR |
1607 | fprintf_filtered (stream, _("\ | |
1608 | --with-relocated-sources=%s\n\ | |
1609 | "), RELOC_SRCDIR); | |
1610 | #endif | |
bbde7025 | 1611 | |
6eaaf48b EZ |
1612 | if (DEBUGDIR[0]) |
1613 | fprintf_filtered (stream, _("\ | |
1614 | --with-separate-debug-dir=%s%s\n\ | |
1615 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
bbde7025 | 1616 | |
6eaaf48b EZ |
1617 | if (TARGET_SYSTEM_ROOT[0]) |
1618 | fprintf_filtered (stream, _("\ | |
1619 | --with-sysroot=%s%s\n\ | |
1620 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
bbde7025 | 1621 | |
6eaaf48b EZ |
1622 | if (SYSTEM_GDBINIT[0]) |
1623 | fprintf_filtered (stream, _("\ | |
1624 | --with-system-gdbinit=%s%s\n\ | |
1625 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
bbde7025 | 1626 | |
ed2a2229 CB |
1627 | if (SYSTEM_GDBINIT_DIR[0]) |
1628 | fprintf_filtered (stream, _("\ | |
1629 | --with-system-gdbinit-dir=%s%s\n\ | |
1630 | "), SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
bbde7025 SM |
1631 | |
1632 | /* We assume "relocatable" will be printed at least once, thus we always | |
1633 | print this text. It's a reasonably safe assumption for now. */ | |
1634 | fprintf_filtered (stream, _("\n\ | |
48d1d6f5 EZ |
1635 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ |
1636 | tree, and GDB will still find it.)\n\ | |
1637 | ")); | |
6eaaf48b | 1638 | } |
9e0b60a8 | 1639 | \f |
95298e72 | 1640 | |
ab821bc6 PA |
1641 | /* The current top level prompt, settable with "set prompt", and/or |
1642 | with the python `gdb.prompt_hook' hook. */ | |
1643 | static char *top_prompt; | |
9e0b60a8 | 1644 | |
ab821bc6 | 1645 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1646 | |
1647 | char * | |
ab821bc6 | 1648 | get_prompt (void) |
95298e72 | 1649 | { |
ab821bc6 | 1650 | return top_prompt; |
95298e72 PM |
1651 | } |
1652 | ||
ab821bc6 | 1653 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1654 | |
1655 | void | |
ab821bc6 | 1656 | set_prompt (const char *s) |
95298e72 | 1657 | { |
ab821bc6 | 1658 | char *p = xstrdup (s); |
95298e72 | 1659 | |
ab821bc6 PA |
1660 | xfree (top_prompt); |
1661 | top_prompt = p; | |
9e0b60a8 | 1662 | } |
9e0b60a8 | 1663 | \f |
c5aa993b | 1664 | |
26f42329 SM |
1665 | /* Kills or detaches the given inferior, depending on how we originally |
1666 | gained control of it. */ | |
9e0b60a8 | 1667 | |
26f42329 SM |
1668 | static void |
1669 | kill_or_detach (inferior *inf, int from_tty) | |
54a012c9 | 1670 | { |
6c95b8df | 1671 | if (inf->pid == 0) |
26f42329 | 1672 | return; |
6c95b8df | 1673 | |
00431a78 | 1674 | thread_info *thread = any_thread_of_inferior (inf); |
b8fa0bfa | 1675 | if (thread != NULL) |
9e0b60a8 | 1676 | { |
00431a78 | 1677 | switch_to_thread (thread); |
c35b1492 PA |
1678 | |
1679 | /* Leave core files alone. */ | |
1680 | if (target_has_execution) | |
1681 | { | |
1682 | if (inf->attach_flag) | |
26f42329 | 1683 | target_detach (inf, from_tty); |
c35b1492 PA |
1684 | else |
1685 | target_kill (); | |
1686 | } | |
9e0b60a8 | 1687 | } |
54a012c9 PA |
1688 | } |
1689 | ||
26f42329 SM |
1690 | /* Prints info about what GDB will do to inferior INF on a "quit". OUT is |
1691 | where to collect the output. */ | |
b8fa0bfa | 1692 | |
26f42329 SM |
1693 | static void |
1694 | print_inferior_quit_action (inferior *inf, ui_file *out) | |
b8fa0bfa | 1695 | { |
6c95b8df | 1696 | if (inf->pid == 0) |
26f42329 | 1697 | return; |
6c95b8df | 1698 | |
b8fa0bfa | 1699 | if (inf->attach_flag) |
26f42329 | 1700 | fprintf_filtered (out, |
b8fa0bfa | 1701 | _("\tInferior %d [%s] will be detached.\n"), inf->num, |
a068643d | 1702 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa | 1703 | else |
26f42329 | 1704 | fprintf_filtered (out, |
b8fa0bfa | 1705 | _("\tInferior %d [%s] will be killed.\n"), inf->num, |
a068643d | 1706 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1707 | } |
1708 | ||
1709 | /* If necessary, make the user confirm that we should quit. Return | |
1710 | non-zero if we should quit, zero if we shouldn't. */ | |
1711 | ||
1712 | int | |
1713 | quit_confirm (void) | |
1714 | { | |
b8fa0bfa PA |
1715 | /* Don't even ask if we're only debugging a core file inferior. */ |
1716 | if (!have_live_inferiors ()) | |
1717 | return 1; | |
1718 | ||
1719 | /* Build the query string as a single string. */ | |
d7e74731 | 1720 | string_file stb; |
b8fa0bfa | 1721 | |
d7e74731 | 1722 | stb.puts (_("A debugging session is active.\n\n")); |
26f42329 SM |
1723 | |
1724 | for (inferior *inf : all_inferiors ()) | |
1725 | print_inferior_quit_action (inf, &stb); | |
1726 | ||
d7e74731 | 1727 | stb.puts (_("\nQuit anyway? ")); |
7b01d34b | 1728 | |
d7e74731 | 1729 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1730 | } |
1731 | ||
18206ca3 PP |
1732 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1733 | terminal so that we leave the terminal in the state we acquired it. */ | |
1734 | ||
1735 | static void | |
1736 | undo_terminal_modifications_before_exit (void) | |
1737 | { | |
3c216924 PA |
1738 | struct ui *saved_top_level = current_ui; |
1739 | ||
223ffa71 | 1740 | target_terminal::ours (); |
3c216924 PA |
1741 | |
1742 | current_ui = main_ui; | |
1743 | ||
18206ca3 PP |
1744 | #if defined(TUI) |
1745 | tui_disable (); | |
1746 | #endif | |
3c216924 PA |
1747 | gdb_disable_readline (); |
1748 | ||
1749 | current_ui = saved_top_level; | |
18206ca3 PP |
1750 | } |
1751 | ||
1752 | ||
b0abbc58 JJ |
1753 | /* Quit without asking for confirmation. */ |
1754 | ||
1755 | void | |
36cf1806 | 1756 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1757 | { |
1758 | int exit_code = 0; | |
1759 | ||
18206ca3 PP |
1760 | undo_terminal_modifications_before_exit (); |
1761 | ||
7734102d | 1762 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1763 | value of that expression. */ |
36cf1806 TT |
1764 | if (exit_arg) |
1765 | exit_code = *exit_arg; | |
4b0ad762 AS |
1766 | else if (return_child_result) |
1767 | exit_code = return_child_result_value; | |
b0abbc58 JJ |
1768 | |
1769 | /* We want to handle any quit errors and exit regardless. */ | |
2f9d54cf PA |
1770 | |
1771 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
a70b8144 | 1772 | try |
2f9d54cf PA |
1773 | { |
1774 | disconnect_tracing (); | |
26f42329 SM |
1775 | for (inferior *inf : all_inferiors ()) |
1776 | kill_or_detach (inf, from_tty); | |
2f9d54cf | 1777 | } |
230d2906 | 1778 | catch (const gdb_exception &ex) |
492d29ea PA |
1779 | { |
1780 | exception_print (gdb_stderr, ex); | |
1781 | } | |
2f9d54cf PA |
1782 | |
1783 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1784 | them all out. */ | |
5b6d1e4f | 1785 | for (inferior *inf : all_inferiors ()) |
2f9d54cf | 1786 | { |
5b6d1e4f PA |
1787 | switch_to_inferior_no_thread (inf); |
1788 | try | |
1789 | { | |
1790 | pop_all_targets (); | |
1791 | } | |
1792 | catch (const gdb_exception &ex) | |
1793 | { | |
1794 | exception_print (gdb_stderr, ex); | |
1795 | } | |
492d29ea | 1796 | } |
2f9d54cf PA |
1797 | |
1798 | /* Save the history information if it is appropriate to do so. */ | |
a70b8144 | 1799 | try |
2f9d54cf | 1800 | { |
268a799a PA |
1801 | if (write_history_p && history_filename) |
1802 | { | |
268a799a PA |
1803 | int save = 0; |
1804 | ||
1805 | /* History is currently shared between all UIs. If there's | |
1806 | any UI with a terminal, save history. */ | |
2dab0c7b | 1807 | for (ui *ui : all_uis ()) |
268a799a PA |
1808 | { |
1809 | if (input_interactive_p (ui)) | |
1810 | { | |
1811 | save = 1; | |
1812 | break; | |
1813 | } | |
1814 | } | |
1815 | ||
1816 | if (save) | |
1817 | gdb_safe_append_history (); | |
1818 | } | |
2f9d54cf | 1819 | } |
230d2906 | 1820 | catch (const gdb_exception &ex) |
492d29ea PA |
1821 | { |
1822 | exception_print (gdb_stderr, ex); | |
1823 | } | |
2f9d54cf | 1824 | |
9d1447e0 SDJ |
1825 | /* Destroy any values currently allocated now instead of leaving it |
1826 | to global destructors, because that may be too late. For | |
1827 | example, the destructors of xmethod values call into the Python | |
1828 | runtime, which is finalized via a final cleanup. */ | |
1829 | finalize_values (); | |
1830 | ||
2f9d54cf | 1831 | /* Do any final cleanups before exiting. */ |
a70b8144 | 1832 | try |
2f9d54cf | 1833 | { |
fe7b42e5 | 1834 | do_final_cleanups (); |
2f9d54cf | 1835 | } |
230d2906 | 1836 | catch (const gdb_exception &ex) |
492d29ea PA |
1837 | { |
1838 | exception_print (gdb_stderr, ex); | |
1839 | } | |
b0abbc58 | 1840 | |
9e0b60a8 JM |
1841 | exit (exit_code); |
1842 | } | |
1843 | ||
268a799a PA |
1844 | /* The value of the "interactive-mode" setting. */ |
1845 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1846 | |
268a799a PA |
1847 | /* Implement the "show interactive-mode" option. */ |
1848 | ||
1849 | static void | |
1850 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1851 | struct cmd_list_element *c, | |
1852 | const char *value) | |
9e0b60a8 | 1853 | { |
268a799a PA |
1854 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1855 | fprintf_filtered (file, "Debugger's interactive mode " | |
1856 | "is %s (currently %s).\n", | |
d9de1fe3 | 1857 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1858 | else |
1859 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1860 | } | |
1861 | ||
1862 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1863 | |
268a799a PA |
1864 | int |
1865 | input_interactive_p (struct ui *ui) | |
1866 | { | |
c63a1f86 JK |
1867 | if (batch_flag) |
1868 | return 0; | |
1869 | ||
268a799a PA |
1870 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1871 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1872 | |
268a799a | 1873 | return ui->input_interactive_p; |
9e0b60a8 JM |
1874 | } |
1875 | \f | |
9e0b60a8 | 1876 | static void |
0b39b52e | 1877 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1878 | { |
dc7eb48e PA |
1879 | /* Can't call dont_repeat here because we're not necessarily reading |
1880 | from stdin. */ | |
1881 | *saved_command_line = 0; | |
9e0b60a8 JM |
1882 | } |
1883 | \f | |
1884 | /* Functions to manipulate command line editing control variables. */ | |
1885 | ||
1886 | /* Number of commands to print in each call to show_commands. */ | |
1887 | #define Hist_print 10 | |
d318976c | 1888 | void |
85c4be7c | 1889 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1890 | { |
1891 | /* Index for history commands. Relative to history_base. */ | |
1892 | int offset; | |
1893 | ||
1894 | /* Number of the history entry which we are planning to display next. | |
1895 | Relative to history_base. */ | |
1896 | static int num = 0; | |
1897 | ||
9e0b60a8 | 1898 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1899 | |
1900 | if (args) | |
1901 | { | |
1902 | if (args[0] == '+' && args[1] == '\0') | |
1903 | /* "info editing +" should print from the stored position. */ | |
1904 | ; | |
1905 | else | |
1906 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1907 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1908 | } |
1909 | /* "show commands" means print the last Hist_print commands. */ | |
1910 | else | |
1911 | { | |
840a9a1f | 1912 | num = history_length - Hist_print; |
9e0b60a8 JM |
1913 | } |
1914 | ||
1915 | if (num < 0) | |
1916 | num = 0; | |
1917 | ||
1918 | /* If there are at least Hist_print commands, we want to display the last | |
1919 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1920 | if (history_length - num < Hist_print) |
9e0b60a8 | 1921 | { |
840a9a1f | 1922 | num = history_length - Hist_print; |
9e0b60a8 JM |
1923 | if (num < 0) |
1924 | num = 0; | |
1925 | } | |
1926 | ||
840a9a1f PA |
1927 | for (offset = num; |
1928 | offset < num + Hist_print && offset < history_length; | |
1929 | offset++) | |
9e0b60a8 JM |
1930 | { |
1931 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1932 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1933 | } |
1934 | ||
1935 | /* The next command we want to display is the next one that we haven't | |
1936 | displayed yet. */ | |
1937 | num += Hist_print; | |
1938 | ||
1939 | /* If the user repeats this command with return, it should do what | |
1940 | "show commands +" does. This is unnecessary if arg is null, | |
1941 | because "show commands +" is not useful after "show commands". */ | |
1942 | if (from_tty && args) | |
85c4be7c | 1943 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1944 | } |
1945 | ||
ebfd00d2 | 1946 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1947 | |
ebfd00d2 | 1948 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1949 | |
ebfd00d2 PP |
1950 | static void |
1951 | set_readline_history_size (int history_size) | |
1952 | { | |
1953 | gdb_assert (history_size >= -1); | |
840a9a1f | 1954 | |
ebfd00d2 | 1955 | if (history_size == -1) |
840a9a1f | 1956 | unstifle_history (); |
883b9c6c | 1957 | else |
ebfd00d2 PP |
1958 | stifle_history (history_size); |
1959 | } | |
1960 | ||
1961 | /* Called by do_setshow_command. */ | |
1962 | static void | |
eb4c3f4a TT |
1963 | set_history_size_command (const char *args, |
1964 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1965 | { |
1966 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1967 | } |
1968 | ||
491144b5 | 1969 | bool info_verbose = false; /* Default verbose msgs off. */ |
9e0b60a8 | 1970 | |
94f2c730 | 1971 | /* Called by do_set_command. An elaborate joke. */ |
d318976c | 1972 | void |
eb4c3f4a | 1973 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1974 | { |
6f937416 | 1975 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1976 | struct cmd_list_element *showcmd; |
1977 | ||
cf00cd6f | 1978 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, NULL, 1); |
1427fe5e | 1979 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 | 1980 | |
94f2c730 PW |
1981 | if (c->doc && c->doc_allocated) |
1982 | xfree ((char *) c->doc); | |
1983 | if (showcmd->doc && showcmd->doc_allocated) | |
1984 | xfree ((char *) showcmd->doc); | |
9e0b60a8 JM |
1985 | if (info_verbose) |
1986 | { | |
94f2c730 PW |
1987 | c->doc = _("Set verbose printing of informational messages."); |
1988 | showcmd->doc = _("Show verbose printing of informational messages."); | |
9e0b60a8 JM |
1989 | } |
1990 | else | |
1991 | { | |
94f2c730 PW |
1992 | c->doc = _("Set verbosity."); |
1993 | showcmd->doc = _("Show verbosity."); | |
9e0b60a8 | 1994 | } |
94f2c730 PW |
1995 | c->doc_allocated = 0; |
1996 | showcmd->doc_allocated = 0; | |
9e0b60a8 JM |
1997 | } |
1998 | ||
9e0b60a8 | 1999 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
2000 | have been read so that the user can change the history file via his |
2001 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
2002 | overrides all of this. */ | |
9e0b60a8 JM |
2003 | |
2004 | void | |
fba45db2 | 2005 | init_history (void) |
9e0b60a8 | 2006 | { |
b5a9bfbe | 2007 | const char *tmpenv; |
9e0b60a8 | 2008 | |
b58c513b | 2009 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 2010 | if (tmpenv) |
840a9a1f | 2011 | { |
bc460514 | 2012 | long var; |
0fc26caf | 2013 | int saved_errno; |
bc460514 PP |
2014 | char *endptr; |
2015 | ||
2016 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 2017 | errno = 0; |
bc460514 | 2018 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 2019 | saved_errno = errno; |
bc460514 PP |
2020 | endptr = skip_spaces (endptr); |
2021 | ||
2022 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
2023 | empty string, a negative number or a huge positive number (larger than | |
2024 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
2025 | history size to the number we have read. This behavior is consistent | |
2026 | with how bash handles HISTSIZE. */ | |
2027 | if (*endptr != '\0') | |
2028 | ; | |
2029 | else if (*tmpenv == '\0' | |
2030 | || var < 0 | |
0fc26caf PP |
2031 | || var > INT_MAX |
2032 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
2033 | errno after calling strtol to distinguish between a value that | |
2034 | is exactly INT_MAX and an overflowing value that was clamped | |
2035 | to INT_MAX. */ | |
2036 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
2037 | history_size_setshow_var = -1; |
2038 | else | |
2039 | history_size_setshow_var = var; | |
840a9a1f | 2040 | } |
bc460514 PP |
2041 | |
2042 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
2043 | default. */ | |
2044 | if (history_size_setshow_var == -2) | |
840a9a1f | 2045 | history_size_setshow_var = 256; |
9e0b60a8 | 2046 | |
ebfd00d2 | 2047 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
2048 | |
2049 | tmpenv = getenv ("GDBHISTFILE"); | |
63e163f2 | 2050 | if (tmpenv != nullptr) |
1b36a34b | 2051 | history_filename = xstrdup (tmpenv); |
63e163f2 | 2052 | else if (history_filename == nullptr) |
c5aa993b JM |
2053 | { |
2054 | /* We include the current directory so that if the user changes | |
2055 | directories the file written will be the same as the one | |
2056 | that was read. */ | |
a0b3c4fd | 2057 | #ifdef __MSDOS__ |
eb2f494a | 2058 | /* No leading dots in file names are allowed on MSDOS. */ |
ff8577f6 | 2059 | const char *fname = "_gdb_history"; |
a0b3c4fd | 2060 | #else |
ff8577f6 | 2061 | const char *fname = ".gdb_history"; |
a0b3c4fd | 2062 | #endif |
ff8577f6 SDJ |
2063 | |
2064 | gdb::unique_xmalloc_ptr<char> temp (gdb_abspath (fname)); | |
2065 | history_filename = temp.release (); | |
c5aa993b | 2066 | } |
63e163f2 AB |
2067 | |
2068 | if (!history_filename_empty ()) | |
2069 | read_history (history_filename); | |
9e0b60a8 JM |
2070 | } |
2071 | ||
920d2a44 | 2072 | static void |
ab821bc6 PA |
2073 | show_prompt (struct ui_file *file, int from_tty, |
2074 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
2075 | { |
2076 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
2077 | } | |
2078 | ||
3c216924 PA |
2079 | /* "set editing" command. */ |
2080 | ||
2081 | static void | |
eb4c3f4a | 2082 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
2083 | { |
2084 | change_line_handler (set_editing_cmd_var); | |
2085 | /* Update the control variable so that MI's =cmd-param-changed event | |
2086 | shows the correct value. */ | |
2087 | set_editing_cmd_var = current_ui->command_editing; | |
2088 | } | |
2089 | ||
920d2a44 | 2090 | static void |
3c216924 PA |
2091 | show_editing (struct ui_file *file, int from_tty, |
2092 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2093 | { |
3e43a32a MS |
2094 | fprintf_filtered (file, _("Editing of command lines as " |
2095 | "they are typed is %s.\n"), | |
3c216924 | 2096 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
2097 | } |
2098 | ||
2099 | static void | |
2100 | show_annotation_level (struct ui_file *file, int from_tty, | |
2101 | struct cmd_list_element *c, const char *value) | |
2102 | { | |
2103 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
2104 | } | |
2105 | ||
2106 | static void | |
2107 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
2108 | struct cmd_list_element *c, const char *value) | |
2109 | { | |
3e43a32a MS |
2110 | fprintf_filtered (file, _("Notification of completion for " |
2111 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
2112 | value); |
2113 | } | |
6dea1fbd | 2114 | |
8d551b02 DE |
2115 | /* New values of the "data-directory" parameter are staged here. */ |
2116 | static char *staged_gdb_datadir; | |
2117 | ||
6dea1fbd JK |
2118 | /* "set" command for the gdb_datadir configuration variable. */ |
2119 | ||
2120 | static void | |
eb4c3f4a | 2121 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 2122 | { |
8d551b02 | 2123 | set_gdb_data_directory (staged_gdb_datadir); |
76727919 | 2124 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
2125 | } |
2126 | ||
8d551b02 DE |
2127 | /* "show" command for the gdb_datadir configuration variable. */ |
2128 | ||
2129 | static void | |
2130 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2131 | struct cmd_list_element *c, const char *value) | |
2132 | { | |
6ec1d75e PW |
2133 | fprintf_filtered (file, _("GDB's data directory is \"%ps\".\n"), |
2134 | styled_string (file_name_style.style (), | |
2135 | gdb_datadir.c_str ())); | |
8d551b02 DE |
2136 | } |
2137 | ||
63e163f2 AB |
2138 | /* Implement 'set history filename'. */ |
2139 | ||
97c85fc6 | 2140 | static void |
eb4c3f4a TT |
2141 | set_history_filename (const char *args, |
2142 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
2143 | { |
2144 | /* We include the current directory so that if the user changes | |
2145 | directories the file written will be the same as the one | |
2146 | that was read. */ | |
63e163f2 | 2147 | if (!history_filename_empty () && !IS_ABSOLUTE_PATH (history_filename)) |
ff8577f6 SDJ |
2148 | { |
2149 | gdb::unique_xmalloc_ptr<char> temp (gdb_abspath (history_filename)); | |
2150 | ||
2151 | xfree (history_filename); | |
2152 | history_filename = temp.release (); | |
2153 | } | |
97c85fc6 MB |
2154 | } |
2155 | ||
7734102d EZ |
2156 | static void |
2157 | init_gdb_version_vars (void) | |
2158 | { | |
2159 | struct internalvar *major_version_var = create_internalvar ("_gdb_major"); | |
2160 | struct internalvar *minor_version_var = create_internalvar ("_gdb_minor"); | |
2161 | int vmajor = 0, vminor = 0, vrevision = 0; | |
2162 | sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision); | |
2163 | set_internalvar_integer (major_version_var, vmajor); | |
2164 | set_internalvar_integer (minor_version_var, vminor + (vrevision > 0)); | |
2165 | } | |
2166 | ||
9e0b60a8 | 2167 | static void |
fba45db2 | 2168 | init_main (void) |
9e0b60a8 | 2169 | { |
60eb5395 PA |
2170 | struct cmd_list_element *c; |
2171 | ||
ab821bc6 PA |
2172 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2173 | the DEFAULT_PROMPT is. */ | |
2174 | set_prompt (DEFAULT_PROMPT); | |
2175 | ||
9e0b60a8 JM |
2176 | /* Set the important stuff up for command editing. */ |
2177 | command_editing_p = 1; | |
9e0b60a8 | 2178 | history_expansion_p = 0; |
452a569e | 2179 | write_history_p = 0; |
9e0b60a8 JM |
2180 | |
2181 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2182 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2183 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2184 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2185 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2186 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2187 | rl_readline_name = "gdb"; |
7cb3ec5e | 2188 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2189 | |
467d8519 TT |
2190 | /* The name for this defun comes from Bash, where it originated. |
2191 | 15 is Control-o, the same binding this function has in Bash. */ | |
2192 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2193 | ||
4d28ad1e | 2194 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2195 | &top_prompt, |
590042fc PW |
2196 | _("Set gdb's prompt."), |
2197 | _("Show gdb's prompt."), | |
ab821bc6 PA |
2198 | NULL, NULL, |
2199 | show_prompt, | |
4d28ad1e | 2200 | &setlist, &showlist); |
9e0b60a8 | 2201 | |
1bedd215 | 2202 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2203 | Don't repeat this command.\nPrimarily \ |
2204 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2205 | hitting return.")); |
9e0b60a8 | 2206 | |
5bf193a2 | 2207 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2208 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2209 | Set editing of command lines as they are typed."), _("\ |
2210 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2211 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2212 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2213 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2214 | set_editing, |
2215 | show_editing, | |
5bf193a2 AC |
2216 | &setlist, &showlist); |
2217 | ||
2218 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2219 | Set saving of the history record on exit."), _("\ | |
2220 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2221 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2222 | Without an argument, saving is enabled."), |
2223 | NULL, | |
920d2a44 | 2224 | show_write_history_p, |
5bf193a2 | 2225 | &sethistlist, &showhistlist); |
9e0b60a8 | 2226 | |
ebfd00d2 PP |
2227 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2228 | &history_size_setshow_var, _("\ | |
590042fc PW |
2229 | Set the size of the command history."), _("\ |
2230 | Show the size of the command history."), _("\ | |
2231 | This is the number of previous commands to keep a record of.\n\ | |
f81d1120 PA |
2232 | If set to \"unlimited\", the number of commands kept in the history\n\ |
2233 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2234 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2235 | set_history_size_command, |
2236 | show_history_size, | |
2237 | &sethistlist, &showhistlist); | |
4d28ad1e | 2238 | |
fc637f04 PP |
2239 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2240 | &history_remove_duplicates, _("\ | |
2241 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2242 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2243 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2244 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2245 | entry, each time a new history entry is added.\n\ | |
2246 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2247 | Only history entries added during this session are considered for removal.\n\ | |
2248 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2249 | By default this option is set to 0."), | |
2250 | NULL, | |
2251 | show_history_remove_duplicates, | |
2252 | &sethistlist, &showhistlist); | |
2253 | ||
63e163f2 | 2254 | add_setshow_optional_filename_cmd ("filename", no_class, &history_filename, _("\ |
590042fc PW |
2255 | Set the filename in which to record the command history."), _("\ |
2256 | Show the filename in which to record the command history."), _("\ | |
4d28ad1e | 2257 | (the list of previous commands of which a record is kept)."), |
97c85fc6 | 2258 | set_history_filename, |
920d2a44 | 2259 | show_history_filename, |
4d28ad1e | 2260 | &sethistlist, &showhistlist); |
9e0b60a8 | 2261 | |
e360902b | 2262 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2263 | Set whether to confirm potentially dangerous operations."), _("\ |
2264 | Show whether to confirm potentially dangerous operations."), NULL, | |
2265 | NULL, | |
e360902b | 2266 | show_confirm, |
5bf193a2 | 2267 | &setlist, &showlist); |
9e0b60a8 | 2268 | |
85c07804 AC |
2269 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2270 | Set annotation_level."), _("\ | |
2271 | Show annotation_level."), _("\ | |
9e0b60a8 | 2272 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2273 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2274 | NULL, |
920d2a44 | 2275 | show_annotation_level, |
85c07804 | 2276 | &setlist, &showlist); |
362646f5 | 2277 | |
5bf193a2 AC |
2278 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2279 | &exec_done_display_p, _("\ | |
2280 | Set notification of completion for asynchronous execution commands."), _("\ | |
2281 | Show notification of completion for asynchronous execution commands."), _("\ | |
2282 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2283 | NULL, | |
920d2a44 | 2284 | show_exec_done_display_p, |
5bf193a2 | 2285 | &setlist, &showlist); |
b14b1491 TT |
2286 | |
2287 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2288 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2289 | _("Show GDB's data directory."), |
2290 | _("\ | |
2291 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2292 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2293 | &setlist, |
2294 | &showlist); | |
268a799a PA |
2295 | |
2296 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2297 | &interactive_mode, _("\ | |
2298 | Set whether GDB's standard input is a terminal."), _("\ | |
2299 | Show whether GDB's standard input is a terminal."), _("\ | |
2300 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2301 | means that GDB should wait for the user to answer queries associated to\n\ | |
2302 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2303 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2304 | If auto (the default), determine which mode to use based on the standard\n\ | |
2305 | input settings."), | |
2306 | NULL, | |
2307 | show_interactive_mode, | |
2308 | &setlist, &showlist); | |
60eb5395 PA |
2309 | |
2310 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
590042fc PW |
2311 | Create a new UI.\n\ |
2312 | Usage: new-ui INTERPRETER TTY\n\ | |
60eb5395 | 2313 | The first argument is the name of the interpreter to run.\n\ |
89549d7f | 2314 | The second argument is the terminal the UI runs on."), &cmdlist); |
60eb5395 | 2315 | set_cmd_completer (c, interpreter_completer); |
9e0b60a8 | 2316 | } |
64cdedad EZ |
2317 | |
2318 | void | |
2319 | gdb_init (char *argv0) | |
2320 | { | |
68bb5386 PW |
2321 | saved_command_line = xstrdup (""); |
2322 | previous_saved_command_line = xstrdup (""); | |
2323 | ||
64cdedad EZ |
2324 | if (pre_init_ui_hook) |
2325 | pre_init_ui_hook (); | |
2326 | ||
371d5dec | 2327 | /* Run the init function of each source file. */ |
64cdedad | 2328 | |
64cdedad EZ |
2329 | #ifdef __MSDOS__ |
2330 | /* Make sure we return to the original directory upon exit, come | |
2331 | what may, since the OS doesn't do that for us. */ | |
2332 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2333 | #endif | |
2334 | ||
371d5dec | 2335 | init_cmd_lists (); /* This needs to be done first. */ |
9dea9163 | 2336 | |
24b73f8e PP |
2337 | init_page_info (); |
2338 | ||
9dea9163 | 2339 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2340 | initialize_all_files (); |
9dea9163 | 2341 | |
6c95b8df PA |
2342 | /* This creates the current_program_space. Do this after all the |
2343 | _initialize_foo routines have had a chance to install their | |
2344 | per-sspace data keys. Also do this before | |
2345 | initialize_current_architecture is called, because it accesses | |
2346 | exec_bfd of the current program space. */ | |
2347 | initialize_progspace (); | |
2348 | initialize_inferiors (); | |
64cdedad | 2349 | initialize_current_architecture (); |
371d5dec | 2350 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2351 | |
0ea3f30e DJ |
2352 | initialize_stdin_serial (); |
2353 | ||
6a06d660 PP |
2354 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2355 | to alter it. */ | |
2356 | set_initial_gdb_ttystate (); | |
2357 | ||
362646f5 | 2358 | async_init_signals (); |
64cdedad | 2359 | |
371d5dec MS |
2360 | /* We need a default language for parsing expressions, so simple |
2361 | things like "set width 0" won't fail if no language is explicitly | |
2362 | set in a config file or implicitly set by reading an executable | |
2363 | during startup. */ | |
64cdedad | 2364 | set_language (language_c); |
371d5dec | 2365 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2366 | |
6dddc817 | 2367 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2368 | installed. For example "info pretty-printer" needs the "info" |
2369 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2370 | script initialization here. */ |
2371 | finish_ext_lang_initialization (); | |
7734102d EZ |
2372 | |
2373 | /* Create $_gdb_major and $_gdb_minor convenience variables. */ | |
2374 | init_gdb_version_vars (); | |
64cdedad | 2375 | } |