Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 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" |
2e03ee74 | 45 | #include "event-loop.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
6dddc817 | 47 | #include "extension.h" |
b4a14fd0 | 48 | #include "interps.h" |
76727919 | 49 | #include "observable.h" |
bd712aed | 50 | #include "maint.h" |
97c85fc6 | 51 | #include "filenames.h" |
06096720 | 52 | #include "frame.h" |
268a13a5 | 53 | #include "gdbsupport/buffer.h" |
3212b858 | 54 | #include "gdb_select.h" |
268a13a5 | 55 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 56 | #include "gdbarch.h" |
c906108c | 57 | |
371d5dec | 58 | /* readline include files. */ |
dbda9972 AC |
59 | #include "readline/readline.h" |
60 | #include "readline/history.h" | |
c906108c SS |
61 | |
62 | /* readline defines this. */ | |
63 | #undef savestring | |
64 | ||
65 | #include <sys/types.h> | |
c906108c | 66 | |
c2c6d25f | 67 | #include "event-top.h" |
53ce3c39 | 68 | #include <sys/stat.h> |
c906108c | 69 | #include <ctype.h> |
8b93c638 JM |
70 | #include "ui-out.h" |
71 | #include "cli-out.h" | |
2f9d54cf | 72 | #include "tracepoint.h" |
93d6eb10 | 73 | #include "inf-loop.h" |
c906108c | 74 | |
18206ca3 PP |
75 | #if defined(TUI) |
76 | # include "tui/tui.h" | |
77 | #endif | |
78 | ||
60eb5395 PA |
79 | #ifndef O_NOCTTY |
80 | # define O_NOCTTY 0 | |
81 | #endif | |
82 | ||
ca7b0bbc TT |
83 | extern void initialize_all_files (void); |
84 | ||
95298e72 PM |
85 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
86 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
87 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
88 | ||
371d5dec | 89 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
90 | |
91 | #ifndef DEFAULT_PROMPT | |
92 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
93 | #endif |
94 | ||
79aa2fe8 PA |
95 | /* Generate a function that exports a pointer to a field of the |
96 | current UI. */ | |
97 | ||
98 | #define gen_ret_current_ui_field_ptr(type, name) \ | |
99 | type * \ | |
100 | current_ui_## name ## _ptr (void) \ | |
101 | { \ | |
102 | return ¤t_ui->m_ ## name; \ | |
103 | } | |
104 | ||
105 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout) | |
106 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin) | |
107 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr) | |
108 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog) | |
b6dcde57 | 109 | gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout) |
79aa2fe8 | 110 | |
c906108c SS |
111 | int inhibit_gdbinit = 0; |
112 | ||
c906108c SS |
113 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
114 | ||
050a2e1d PA |
115 | /* Flag for whether we want to confirm potentially dangerous |
116 | operations. Default is yes. */ | |
117 | ||
e360902b | 118 | int confirm = 1; |
c906108c | 119 | |
920d2a44 | 120 | static void |
e360902b | 121 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
122 | struct cmd_list_element *c, const char *value) |
123 | { | |
3e43a32a MS |
124 | fprintf_filtered (file, _("Whether to confirm potentially " |
125 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
126 | value); |
127 | } | |
c906108c | 128 | |
c906108c SS |
129 | /* Current working directory. */ |
130 | ||
131 | char *current_directory; | |
132 | ||
2669cade | 133 | /* The last command line executed on the console. Used for command |
68bb5386 PW |
134 | repetitions when the user enters an empty line. */ |
135 | ||
136 | static char *saved_command_line; | |
137 | ||
138 | /* If not NULL, the arguments that should be passed if | |
139 | saved_command_line is repeated. */ | |
140 | ||
141 | static const char *repeat_arguments; | |
142 | ||
143 | /* The previous last command line executed on the console. Used for command | |
144 | repetitions when a command wants to relaunch the previously launched | |
145 | command. We need this as when a command is running, saved_command_line | |
146 | already contains the line of the currently executing command. */ | |
147 | ||
148 | char *previous_saved_command_line; | |
149 | ||
150 | /* If not NULL, the arguments that should be passed if the | |
151 | previous_saved_command_line is repeated. */ | |
152 | ||
153 | static const char *previous_repeat_arguments; | |
c906108c SS |
154 | |
155 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 156 | affects things like recording into the command history, commands |
c906108c SS |
157 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
158 | whatever) can issue its own commands and also send along commands | |
159 | from the user, and have the user not notice that the user interface | |
160 | is issuing commands too. */ | |
161 | int server_command; | |
162 | ||
371d5dec | 163 | /* Timeout limit for response from target. */ |
c906108c | 164 | |
7734102d EZ |
165 | /* The default value has been changed many times over the years. It |
166 | was originally 5 seconds. But that was thought to be a long time | |
ce808e91 | 167 | to sit and wait, so it was changed to 2 seconds. That was thought |
7734102d | 168 | to be plenty unless the connection was going through some terminal |
ce808e91 AC |
169 | server or multiplexer or other form of hairy serial connection. |
170 | ||
7734102d | 171 | In mid-1996, remote_timeout was moved from remote.c to top.c and |
ce808e91 AC |
172 | it began being used in other remote-* targets. It appears that the |
173 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 174 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
175 | |
176 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
7734102d | 177 | 20 seconds is far worse. This demonstrates the difficulty of using |
ce808e91 AC |
178 | a single variable for all protocol timeouts. |
179 | ||
7734102d | 180 | As remote.c is used much more than remote-e7000.c, it was changed |
371d5dec | 181 | back to 2 seconds in 1999. */ |
ce808e91 AC |
182 | |
183 | int remote_timeout = 2; | |
c906108c SS |
184 | |
185 | /* Non-zero tells remote* modules to output debugging info. */ | |
186 | ||
187 | int remote_debug = 0; | |
188 | ||
6dd77b81 | 189 | /* Sbrk location on entry to main. Used for statistics only. */ |
6242c6a6 | 190 | #ifdef HAVE_USEFUL_SBRK |
6dd77b81 RH |
191 | char *lim_at_start; |
192 | #endif | |
193 | ||
c906108c SS |
194 | /* Hooks for alternate command interfaces. */ |
195 | ||
371d5dec MS |
196 | /* This hook is called from within gdb's many mini-event loops which |
197 | could steal control from a real user interface's event loop. It | |
198 | returns non-zero if the user is requesting a detach, zero | |
199 | otherwise. */ | |
7a292a7a | 200 | |
98bbd631 | 201 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 202 | |
c906108c | 203 | |
c906108c SS |
204 | /* Called from print_frame_info to list the line we stopped in. */ |
205 | ||
7734102d | 206 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
371d5dec | 207 | int line, |
7734102d | 208 | int stopline, |
371d5dec | 209 | int noerror); |
c906108c SS |
210 | /* Replaces most of query. */ |
211 | ||
9a4105ab | 212 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
213 | |
214 | /* Replaces most of warning. */ | |
215 | ||
9a4105ab | 216 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 217 | |
9a4105ab AC |
218 | /* These three functions support getting lines of text from the user. |
219 | They are used in sequence. First deprecated_readline_begin_hook is | |
220 | called with a text string that might be (for example) a message for | |
221 | the user to type in a sequence of commands to be executed at a | |
222 | breakpoint. If this function calls back to a GUI, it might take | |
223 | this opportunity to pop up a text interaction window with this | |
224 | message. Next, deprecated_readline_hook is called with a prompt | |
225 | that is emitted prior to collecting the user input. It can be | |
226 | called multiple times. Finally, deprecated_readline_end_hook is | |
227 | called to notify the GUI that we are done with the interaction | |
228 | window and it can close it. */ | |
c906108c | 229 | |
a121b7c1 | 230 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 231 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 232 | void (*deprecated_readline_end_hook) (void); |
c906108c | 233 | |
6426a772 | 234 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 235 | to or detached from an already running process. */ |
6426a772 | 236 | |
9a4105ab AC |
237 | void (*deprecated_attach_hook) (void); |
238 | void (*deprecated_detach_hook) (void); | |
6426a772 | 239 | |
371d5dec MS |
240 | /* Called when going to wait for the target. Usually allows the GUI |
241 | to run while waiting for target events. */ | |
c906108c | 242 | |
9a4105ab | 243 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
244 | struct target_waitstatus *status, |
245 | int options); | |
c906108c | 246 | |
371d5dec MS |
247 | /* Used by UI as a wrapper around command execution. May do various |
248 | things like enabling/disabling buttons, etc... */ | |
c906108c | 249 | |
7734102d | 250 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
95a6b0a1 | 251 | const char *cmd, int from_tty); |
c906108c SS |
252 | |
253 | /* Called when the current thread changes. Argument is thread id. */ | |
254 | ||
9a4105ab | 255 | void (*deprecated_context_hook) (int id); |
c906108c | 256 | |
98d9f24e PA |
257 | /* The highest UI number ever assigned. */ |
258 | static int highest_ui_num; | |
259 | ||
260 | /* See top.h. */ | |
261 | ||
895b8f30 TT |
262 | ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_) |
263 | : next (nullptr), | |
264 | num (++highest_ui_num), | |
265 | call_readline (nullptr), | |
266 | input_handler (nullptr), | |
267 | command_editing (0), | |
268 | interp_info (nullptr), | |
269 | async (0), | |
270 | secondary_prompt_depth (0), | |
271 | stdin_stream (instream_), | |
272 | instream (instream_), | |
273 | outstream (outstream_), | |
274 | errstream (errstream_), | |
275 | input_fd (fileno (instream)), | |
276 | input_interactive_p (ISATTY (instream)), | |
277 | prompt_state (PROMPT_NEEDED), | |
278 | m_gdb_stdout (new stdio_file (outstream)), | |
279 | m_gdb_stdin (new stdio_file (instream)), | |
280 | m_gdb_stderr (new stderr_file (errstream)), | |
281 | m_gdb_stdlog (m_gdb_stderr), | |
282 | m_current_uiout (nullptr) | |
98d9f24e | 283 | { |
895b8f30 | 284 | buffer_init (&line_buffer); |
98d9f24e PA |
285 | |
286 | if (ui_list == NULL) | |
895b8f30 | 287 | ui_list = this; |
98d9f24e PA |
288 | else |
289 | { | |
290 | struct ui *last; | |
291 | ||
292 | for (last = ui_list; last->next != NULL; last = last->next) | |
293 | ; | |
895b8f30 | 294 | last->next = this; |
98d9f24e | 295 | } |
07169ff7 PA |
296 | } |
297 | ||
895b8f30 | 298 | ui::~ui () |
07169ff7 PA |
299 | { |
300 | struct ui *ui, *uiprev; | |
301 | ||
302 | uiprev = NULL; | |
303 | ||
304 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
895b8f30 | 305 | if (ui == this) |
07169ff7 PA |
306 | break; |
307 | ||
308 | gdb_assert (ui != NULL); | |
309 | ||
310 | if (uiprev != NULL) | |
895b8f30 | 311 | uiprev->next = next; |
07169ff7 | 312 | else |
895b8f30 | 313 | ui_list = next; |
07169ff7 | 314 | |
895b8f30 TT |
315 | delete m_gdb_stdin; |
316 | delete m_gdb_stdout; | |
317 | delete m_gdb_stderr; | |
8194e927 SM |
318 | } |
319 | ||
60eb5395 PA |
320 | /* Open file named NAME for read/write, making sure not to make it the |
321 | controlling terminal. */ | |
322 | ||
6e7bc05c | 323 | static gdb_file_up |
60eb5395 PA |
324 | open_terminal_stream (const char *name) |
325 | { | |
326 | int fd; | |
327 | ||
6e7bc05c | 328 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
329 | if (fd < 0) |
330 | perror_with_name (_("opening terminal failed")); | |
331 | ||
6e7bc05c | 332 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
333 | } |
334 | ||
335 | /* Implementation of the "new-ui" command. */ | |
336 | ||
337 | static void | |
32faf971 | 338 | new_ui_command (const char *args, int from_tty) |
60eb5395 | 339 | { |
6e7bc05c | 340 | gdb_file_up stream[3]; |
60eb5395 | 341 | int i; |
60eb5395 | 342 | int argc; |
60eb5395 PA |
343 | const char *interpreter_name; |
344 | const char *tty_name; | |
60eb5395 PA |
345 | |
346 | dont_repeat (); | |
347 | ||
773a1edc TT |
348 | gdb_argv argv (args); |
349 | argc = argv.count (); | |
60eb5395 PA |
350 | |
351 | if (argc < 2) | |
65e65158 | 352 | error (_("Usage: new-ui INTERPRETER TTY")); |
60eb5395 PA |
353 | |
354 | interpreter_name = argv[0]; | |
355 | tty_name = argv[1]; | |
356 | ||
4b6749b9 TT |
357 | { |
358 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 359 | |
4b6749b9 TT |
360 | /* Open specified terminal, once for each of |
361 | stdin/stdout/stderr. */ | |
362 | for (i = 0; i < 3; i++) | |
6e7bc05c | 363 | stream[i] = open_terminal_stream (tty_name); |
60eb5395 | 364 | |
895b8f30 TT |
365 | std::unique_ptr<ui> ui |
366 | (new struct ui (stream[0].get (), stream[1].get (), stream[2].get ())); | |
60eb5395 | 367 | |
4b6749b9 | 368 | ui->async = 1; |
60eb5395 | 369 | |
895b8f30 | 370 | current_ui = ui.get (); |
60eb5395 | 371 | |
4b6749b9 | 372 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 373 | |
4b6749b9 | 374 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 375 | |
6e7bc05c TT |
376 | /* Make sure the files are not closed. */ |
377 | stream[0].release (); | |
378 | stream[1].release (); | |
379 | stream[2].release (); | |
380 | ||
895b8f30 | 381 | ui.release (); |
4b6749b9 | 382 | } |
60eb5395 PA |
383 | |
384 | printf_unfiltered ("New UI allocated\n"); | |
385 | } | |
386 | ||
c906108c SS |
387 | /* Handler for SIGHUP. */ |
388 | ||
389 | #ifdef SIGHUP | |
392a587b | 390 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 391 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 392 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
393 | /* static */ void |
394 | quit_cover (void) | |
c906108c | 395 | { |
e360902b PA |
396 | /* Stop asking user for confirmation --- we're exiting. This |
397 | prevents asking the user dumb questions. */ | |
398 | confirm = 0; | |
c5aa993b | 399 | quit_command ((char *) 0, 0); |
c906108c SS |
400 | } |
401 | #endif /* defined SIGHUP */ | |
402 | \f | |
7a9dd1b2 | 403 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 404 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 405 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 406 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 407 | /* static */ int source_line_number; |
c906108c SS |
408 | |
409 | /* Name of the file we are sourcing. */ | |
392a587b | 410 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 411 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 412 | event-top.c into this file, top.c. */ |
6caa91b6 | 413 | /* static */ std::string source_file_name; |
c906108c | 414 | |
c906108c SS |
415 | /* Read commands from STREAM. */ |
416 | void | |
fba45db2 | 417 | read_command_file (FILE *stream) |
c906108c | 418 | { |
f38d3ad1 | 419 | struct ui *ui = current_ui; |
c906108c | 420 | |
3c9ebddd TT |
421 | scoped_restore save_instream |
422 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
423 | |
424 | /* Read commands from `instream' and execute them until end of file | |
425 | or error reading instream. */ | |
426 | ||
f38d3ad1 | 427 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
428 | { |
429 | char *command; | |
430 | ||
431 | /* Get a command-line. This calls the readline package. */ | |
89fbedf3 | 432 | command = command_line_input (NULL, NULL); |
faa4ebe1 PA |
433 | if (command == NULL) |
434 | break; | |
435 | command_handler (command); | |
436 | } | |
c906108c SS |
437 | } |
438 | \f | |
507f3c78 | 439 | void (*pre_init_ui_hook) (void); |
c906108c | 440 | |
e41a3b1a | 441 | #ifdef __MSDOS__ |
70976b65 | 442 | static void |
e41a3b1a AC |
443 | do_chdir_cleanup (void *old_dir) |
444 | { | |
f515a1d6 | 445 | chdir ((const char *) old_dir); |
b8c9b27d | 446 | xfree (old_dir); |
e41a3b1a AC |
447 | } |
448 | #endif | |
449 | ||
54f70bc1 TT |
450 | scoped_value_mark |
451 | prepare_execute_command () | |
4e5d721f | 452 | { |
371d5dec MS |
453 | /* With multiple threads running while the one we're examining is |
454 | stopped, the dcache can get stale without us being able to detect | |
455 | it. For the duration of the command, though, use the dcache to | |
456 | help things like backtrace. */ | |
4e5d721f DE |
457 | if (non_stop) |
458 | target_dcache_invalidate (); | |
028d0ed5 | 459 | |
54f70bc1 | 460 | return scoped_value_mark (); |
4e5d721f DE |
461 | } |
462 | ||
77cce10f PA |
463 | /* Tell the user if the language has changed (except first time) after |
464 | executing a command. */ | |
465 | ||
466 | void | |
467 | check_frame_language_change (void) | |
468 | { | |
469 | static int warned = 0; | |
7ff38b1c | 470 | struct frame_info *frame; |
77cce10f PA |
471 | |
472 | /* First make sure that a new frame has been selected, in case the | |
473 | command or the hooks changed the program state. */ | |
7ff38b1c | 474 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
475 | if (current_language != expected_language) |
476 | { | |
477 | if (language_mode == language_mode_auto && info_verbose) | |
478 | { | |
479 | language_info (1); /* Print what changed. */ | |
480 | } | |
481 | warned = 0; | |
482 | } | |
483 | ||
484 | /* Warn the user if the working language does not match the language | |
485 | of the current frame. Only warn the user if we are actually | |
486 | running the program, i.e. there is a stack. */ | |
487 | /* FIXME: This should be cacheing the frame and only running when | |
488 | the frame changes. */ | |
489 | ||
490 | if (has_stack_frames ()) | |
491 | { | |
492 | enum language flang; | |
493 | ||
7ff38b1c | 494 | flang = get_frame_language (frame); |
77cce10f PA |
495 | if (!warned |
496 | && flang != language_unknown | |
497 | && flang != current_language->la_language) | |
498 | { | |
499 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
500 | warned = 1; | |
501 | } | |
502 | } | |
503 | } | |
504 | ||
98880d46 PA |
505 | /* See top.h. */ |
506 | ||
0b333c5e PA |
507 | void |
508 | wait_sync_command_done (void) | |
509 | { | |
4295e285 | 510 | /* Processing events may change the current UI. */ |
4b6749b9 | 511 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
512 | struct ui *ui = current_ui; |
513 | ||
0b333c5e | 514 | while (gdb_do_one_event () >= 0) |
4295e285 | 515 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
516 | break; |
517 | } | |
518 | ||
519 | /* See top.h. */ | |
520 | ||
98880d46 PA |
521 | void |
522 | maybe_wait_sync_command_done (int was_sync) | |
523 | { | |
524 | /* If the interpreter is in sync mode (we're running a user | |
525 | command's list, running command hooks or similars), and we | |
526 | just ran a synchronous command that started the target, wait | |
527 | for that command to end. */ | |
3b12939d PA |
528 | if (!current_ui->async |
529 | && !was_sync | |
530 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 531 | wait_sync_command_done (); |
98880d46 PA |
532 | } |
533 | ||
85c4be7c TT |
534 | /* See command.h. */ |
535 | ||
536 | void | |
537 | set_repeat_arguments (const char *args) | |
538 | { | |
539 | repeat_arguments = args; | |
540 | } | |
541 | ||
648bf667 | 542 | /* Execute the line P as a command, in the current user context. |
d318976c | 543 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 544 | |
d318976c | 545 | void |
95a6b0a1 | 546 | execute_command (const char *p, int from_tty) |
c906108c | 547 | { |
52f0bd74 | 548 | struct cmd_list_element *c; |
95a6b0a1 TT |
549 | const char *line; |
550 | const char *cmd_start = p; | |
4e5d721f | 551 | |
694c6bf5 | 552 | auto cleanup_if_error = make_scope_exit (bpstat_clear_actions); |
54f70bc1 | 553 | scoped_value_mark cleanup = prepare_execute_command (); |
c906108c | 554 | |
d318976c FN |
555 | /* This can happen when command_line_input hits end of file. */ |
556 | if (p == NULL) | |
5fe41fbf | 557 | { |
694c6bf5 | 558 | cleanup_if_error.release (); |
5fe41fbf TT |
559 | return; |
560 | } | |
c906108c | 561 | |
49d03eab | 562 | target_log_command (p); |
8b93c638 | 563 | |
d318976c FN |
564 | while (*p == ' ' || *p == '\t') |
565 | p++; | |
566 | if (*p) | |
8b93c638 | 567 | { |
6f937416 | 568 | const char *cmd = p; |
95a6b0a1 | 569 | const char *arg; |
3b12939d | 570 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 571 | |
d318976c | 572 | line = p; |
8b93c638 | 573 | |
16026cd7 | 574 | /* If trace-commands is set then this will print this command. */ |
1263a9d5 | 575 | print_command_trace ("%s", p); |
16026cd7 | 576 | |
6f937416 | 577 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
95a6b0a1 | 578 | p = cmd; |
8b93c638 | 579 | |
85c4be7c TT |
580 | scoped_restore save_repeat_args |
581 | = make_scoped_restore (&repeat_arguments, nullptr); | |
95a6b0a1 | 582 | const char *args_pointer = p; |
85c4be7c | 583 | |
d318976c FN |
584 | /* Pass null arg rather than an empty one. */ |
585 | arg = *p ? p : 0; | |
8b93c638 | 586 | |
9f60d481 AC |
587 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
588 | while the is_complete_command(cfunc) test is just plain | |
589 | bogus. They should both be replaced by a test of the form | |
590 | c->strip_trailing_white_space_p. */ | |
591 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
592 | can't be replaced with func. This is because it is the | |
593 | cfunc, and not the func, that has the value that the | |
594 | is_complete_command hack is testing for. */ | |
595 | /* Clear off trailing whitespace, except for set and complete | |
596 | command. */ | |
95a6b0a1 | 597 | std::string without_whitespace; |
d318976c FN |
598 | if (arg |
599 | && c->type != set_cmd | |
bbaca940 | 600 | && !is_complete_command (c)) |
8b93c638 | 601 | { |
95a6b0a1 TT |
602 | const char *old_end = arg + strlen (arg) - 1; |
603 | p = old_end; | |
d318976c FN |
604 | while (p >= arg && (*p == ' ' || *p == '\t')) |
605 | p--; | |
95a6b0a1 TT |
606 | if (p != old_end) |
607 | { | |
608 | without_whitespace = std::string (arg, p + 1); | |
609 | arg = without_whitespace.c_str (); | |
610 | } | |
8b93c638 JM |
611 | } |
612 | ||
371d5dec | 613 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 614 | execute_cmd_pre_hook (c); |
c906108c | 615 | |
1f2bdf09 | 616 | if (c->deprecated_warn_user) |
6f937416 | 617 | deprecated_cmd_warning (line); |
c906108c | 618 | |
7d74f244 | 619 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 620 | if (c->theclass == class_user && c->user_commands) |
d318976c | 621 | execute_user_command (c, arg); |
5b9afe8a YQ |
622 | else if (c->type == set_cmd) |
623 | do_set_command (arg, from_tty, c); | |
624 | else if (c->type == show_cmd) | |
625 | do_show_command (arg, from_tty, c); | |
f436dd25 | 626 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 627 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 628 | else if (deprecated_call_command_hook) |
050a2e1d | 629 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 630 | else |
050a2e1d | 631 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 632 | |
98880d46 | 633 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 634 | |
371d5dec | 635 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 636 | execute_cmd_post_hook (c); |
c906108c | 637 | |
95a6b0a1 | 638 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
639 | { |
640 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
641 | strcpy (saved_command_line + (args_pointer - cmd_start), |
642 | repeat_arguments); | |
85c4be7c | 643 | } |
c906108c SS |
644 | } |
645 | ||
0ca1fc29 JB |
646 | /* Only perform the frame-language-change check if the command |
647 | we just finished executing did not resume the inferior's execution. | |
648 | If it did resume the inferior, we will do that check after | |
649 | the inferior stopped. */ | |
00431a78 | 650 | if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING) |
0ca1fc29 | 651 | check_frame_language_change (); |
028d0ed5 | 652 | |
694c6bf5 | 653 | cleanup_if_error.release (); |
c906108c SS |
654 | } |
655 | ||
b8fd0918 PW |
656 | /* Run execute_command for P and FROM_TTY. Sends its output to FILE, |
657 | do not display it to the screen. BATCH_FLAG will be | |
5da1313b JK |
658 | temporarily set to true. */ |
659 | ||
b8fd0918 PW |
660 | void |
661 | execute_command_to_ui_file (struct ui_file *file, const char *p, int from_tty) | |
5da1313b | 662 | { |
5da1313b JK |
663 | /* GDB_STDOUT should be better already restored during these |
664 | restoration callbacks. */ | |
b95de2b7 | 665 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 666 | |
b7b633e9 | 667 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 668 | |
ca5909c7 | 669 | { |
b8fd0918 | 670 | current_uiout->redirect (file); |
ca5909c7 TT |
671 | ui_out_redirect_pop redirect_popper (current_uiout); |
672 | ||
673 | scoped_restore save_stdout | |
b8fd0918 | 674 | = make_scoped_restore (&gdb_stdout, file); |
ca5909c7 | 675 | scoped_restore save_stderr |
b8fd0918 | 676 | = make_scoped_restore (&gdb_stderr, file); |
ca5909c7 | 677 | scoped_restore save_stdlog |
b8fd0918 | 678 | = make_scoped_restore (&gdb_stdlog, file); |
ca5909c7 | 679 | scoped_restore save_stdtarg |
b8fd0918 | 680 | = make_scoped_restore (&gdb_stdtarg, file); |
ca5909c7 | 681 | scoped_restore save_stdtargerr |
b8fd0918 | 682 | = make_scoped_restore (&gdb_stdtargerr, file); |
ca5909c7 TT |
683 | |
684 | execute_command (p, from_tty); | |
685 | } | |
b8fd0918 PW |
686 | } |
687 | ||
688 | /* Run execute_command for P and FROM_TTY. Capture its output into the | |
689 | returned string, do not display it to the screen. BATCH_FLAG will be | |
690 | temporarily set to true. */ | |
691 | ||
692 | std::string | |
693 | execute_command_to_string (const char *p, int from_tty, | |
694 | bool term_out) | |
695 | { | |
696 | string_file str_file (term_out); | |
5da1313b | 697 | |
b8fd0918 | 698 | execute_command_to_ui_file (&str_file, p, from_tty); |
d7e74731 | 699 | return std::move (str_file.string ()); |
5da1313b JK |
700 | } |
701 | ||
d318976c | 702 | \f |
47a80e90 TT |
703 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
704 | set via prevent_dont_repeat. */ | |
705 | ||
706 | static int suppress_dont_repeat = 0; | |
707 | ||
68bb5386 | 708 | /* See command.h */ |
9e0b60a8 | 709 | |
d318976c FN |
710 | void |
711 | dont_repeat (void) | |
9e0b60a8 | 712 | { |
f38d3ad1 PA |
713 | struct ui *ui = current_ui; |
714 | ||
47a80e90 | 715 | if (suppress_dont_repeat || server_command) |
d318976c | 716 | return; |
9e0b60a8 | 717 | |
d318976c | 718 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
719 | thing read from stdin in line and don't want to delete it. Null |
720 | lines won't repeat here in any case. */ | |
268a799a | 721 | if (ui->instream == ui->stdin_stream) |
68bb5386 PW |
722 | { |
723 | *saved_command_line = 0; | |
724 | repeat_arguments = NULL; | |
725 | } | |
726 | } | |
727 | ||
728 | /* See command.h */ | |
729 | ||
fdbc9870 | 730 | const char * |
68bb5386 PW |
731 | repeat_previous () |
732 | { | |
733 | /* Do not repeat this command, as this command is a repeating command. */ | |
734 | dont_repeat (); | |
735 | ||
736 | /* We cannot free saved_command_line, as this line is being executed, | |
737 | so swap it with previous_saved_command_line. */ | |
738 | std::swap (previous_saved_command_line, saved_command_line); | |
739 | std::swap (previous_repeat_arguments, repeat_arguments); | |
fdbc9870 PA |
740 | |
741 | const char *prev = skip_spaces (get_saved_command_line ()); | |
742 | if (*prev == '\0') | |
743 | error (_("No previous command to relaunch")); | |
744 | return prev; | |
9e0b60a8 | 745 | } |
47a80e90 | 746 | |
68bb5386 | 747 | /* See command.h. */ |
47a80e90 | 748 | |
1ac32117 | 749 | scoped_restore_tmpl<int> |
47a80e90 TT |
750 | prevent_dont_repeat (void) |
751 | { | |
1ac32117 | 752 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
753 | } |
754 | ||
68bb5386 PW |
755 | /* See command.h. */ |
756 | ||
757 | char * | |
758 | get_saved_command_line () | |
759 | { | |
760 | return saved_command_line; | |
761 | } | |
762 | ||
763 | /* See command.h. */ | |
764 | ||
765 | void | |
766 | save_command_line (const char *cmd) | |
767 | { | |
768 | xfree (previous_saved_command_line); | |
769 | previous_saved_command_line = saved_command_line; | |
770 | previous_repeat_arguments = repeat_arguments; | |
771 | saved_command_line = xstrdup (cmd); | |
772 | repeat_arguments = NULL; | |
773 | } | |
774 | ||
d318976c FN |
775 | \f |
776 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 777 | |
7a3bde34 | 778 | It prints PROMPT once at the start. |
d318976c FN |
779 | Action is compatible with "readline", e.g. space for the result is |
780 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 781 | |
d318976c | 782 | A NULL return means end of file. */ |
c5c136ea PA |
783 | |
784 | static char * | |
7a3bde34 | 785 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 786 | { |
7a3bde34 | 787 | struct buffer line_buffer; |
f38d3ad1 | 788 | struct ui *ui = current_ui; |
3212b858 PA |
789 | /* Read from stdin if we are executing a user defined command. This |
790 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 791 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 792 | int fd = fileno (stream); |
9e0b60a8 | 793 | |
7a3bde34 PA |
794 | buffer_init (&line_buffer); |
795 | ||
796 | if (prompt != NULL) | |
9e0b60a8 | 797 | { |
d318976c FN |
798 | /* Don't use a _filtered function here. It causes the assumed |
799 | character position to be off, since the newline we read from | |
800 | the user is not accounted for. */ | |
7a3bde34 | 801 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
802 | gdb_flush (gdb_stdout); |
803 | } | |
804 | ||
9e0b60a8 JM |
805 | while (1) |
806 | { | |
7a3bde34 | 807 | int c; |
3212b858 | 808 | fd_set readfds; |
7a3bde34 | 809 | |
3212b858 PA |
810 | QUIT; |
811 | ||
812 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 813 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
814 | FD_ZERO (&readfds); |
815 | FD_SET (fd, &readfds); | |
f0881b37 | 816 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
817 | { |
818 | if (errno == EINTR) | |
819 | { | |
820 | /* If this was ctrl-c, the QUIT above handles it. */ | |
821 | continue; | |
822 | } | |
823 | perror_with_name (("select")); | |
824 | } | |
825 | ||
826 | c = fgetc (stream); | |
9e0b60a8 | 827 | |
d318976c | 828 | if (c == EOF) |
9e0b60a8 | 829 | { |
7a3bde34 | 830 | if (line_buffer.used_size > 0) |
d318976c FN |
831 | /* The last line does not end with a newline. Return it, and |
832 | if we are called again fgetc will still return EOF and | |
833 | we'll return NULL then. */ | |
9e0b60a8 | 834 | break; |
7a3bde34 | 835 | xfree (buffer_finish (&line_buffer)); |
d318976c | 836 | return NULL; |
9e0b60a8 | 837 | } |
c5aa993b | 838 | |
d318976c | 839 | if (c == '\n') |
9e0b60a8 | 840 | { |
7a3bde34 PA |
841 | if (line_buffer.used_size > 0 |
842 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
843 | line_buffer.used_size--; | |
d318976c | 844 | break; |
9e0b60a8 | 845 | } |
9e0b60a8 | 846 | |
7a3bde34 | 847 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
848 | } |
849 | ||
7a3bde34 PA |
850 | buffer_grow_char (&line_buffer, '\0'); |
851 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
852 | } |
853 | ||
d318976c FN |
854 | /* Variables which control command line editing and history |
855 | substitution. These variables are given default values at the end | |
856 | of this file. */ | |
857 | static int command_editing_p; | |
920d2a44 | 858 | |
d318976c FN |
859 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
860 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 861 | event-top.c into this file, top.c. */ |
920d2a44 | 862 | |
d318976c | 863 | /* static */ int history_expansion_p; |
920d2a44 | 864 | |
d318976c | 865 | static int write_history_p; |
920d2a44 AC |
866 | static void |
867 | show_write_history_p (struct ui_file *file, int from_tty, | |
868 | struct cmd_list_element *c, const char *value) | |
869 | { | |
870 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
871 | value); | |
872 | } | |
873 | ||
840a9a1f | 874 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
875 | command. The value -1 means unlimited, and -2 means undefined. */ |
876 | static int history_size_setshow_var = -2; | |
840a9a1f | 877 | |
920d2a44 AC |
878 | static void |
879 | show_history_size (struct ui_file *file, int from_tty, | |
880 | struct cmd_list_element *c, const char *value) | |
881 | { | |
882 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
883 | value); | |
884 | } | |
885 | ||
fc637f04 PP |
886 | /* Variable associated with the "history remove-duplicates" option. |
887 | The value -1 means unlimited. */ | |
888 | static int history_remove_duplicates = 0; | |
889 | ||
890 | static void | |
891 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
892 | struct cmd_list_element *c, const char *value) | |
893 | { | |
894 | fprintf_filtered (file, | |
895 | _("The number of history entries to look back at for " | |
896 | "duplicates is %s.\n"), | |
897 | value); | |
898 | } | |
899 | ||
d318976c | 900 | static char *history_filename; |
920d2a44 AC |
901 | static void |
902 | show_history_filename (struct ui_file *file, int from_tty, | |
903 | struct cmd_list_element *c, const char *value) | |
904 | { | |
3e43a32a MS |
905 | fprintf_filtered (file, _("The filename in which to record " |
906 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
907 | value); |
908 | } | |
9e0b60a8 | 909 | |
b4f5539f | 910 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 911 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
912 | a single gdb invocation. At the ordinary top-level prompt we might |
913 | be using the async readline. That means we can't use | |
914 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
915 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
916 | `define'), gdb wants a synchronous response. |
917 | ||
918 | We used to call readline() directly, running it in synchronous | |
919 | mode. But mixing modes this way is not supported, and as of | |
920 | readline 5.x it no longer works; the arrow keys come unbound during | |
921 | the synchronous call. So we make a nested call into the event | |
922 | loop. That's what gdb_readline_wrapper is for. */ | |
923 | ||
924 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
925 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
926 | the user types Control-D for EOF. */ | |
927 | static int gdb_readline_wrapper_done; | |
928 | ||
929 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
930 | is seen. */ | |
931 | static char *gdb_readline_wrapper_result; | |
932 | ||
933 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
934 | to be called after the newline is processed (which will redisplay | |
935 | the prompt). But in gdb_readline_wrapper we will not get a new | |
936 | prompt until the next call, or until we return to the event loop. | |
937 | So we disable this hook around the newline and restore it before we | |
938 | return. */ | |
939 | static void (*saved_after_char_processing_hook) (void); | |
940 | ||
948578a9 | 941 | |
948578a9 PP |
942 | /* See top.h. */ |
943 | ||
944 | int | |
dbf30ca3 | 945 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 946 | { |
dbf30ca3 | 947 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
948 | } |
949 | ||
950 | ||
2e03ee74 DJ |
951 | /* This function is called when readline has seen a complete line of |
952 | text. */ | |
953 | ||
954 | static void | |
95bc9f0b | 955 | gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line) |
2e03ee74 DJ |
956 | { |
957 | gdb_assert (!gdb_readline_wrapper_done); | |
95bc9f0b | 958 | gdb_readline_wrapper_result = line.release (); |
2e03ee74 DJ |
959 | gdb_readline_wrapper_done = 1; |
960 | ||
961 | /* Prevent operate-and-get-next from acting too early. */ | |
962 | saved_after_char_processing_hook = after_char_processing_hook; | |
963 | after_char_processing_hook = NULL; | |
1b05479a DJ |
964 | |
965 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 966 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
967 | reinstall the callback handler, which puts the terminal in raw |
968 | mode (or in readline lingo, in prepped state), when we're next | |
969 | ready to process user input, either in display_gdb_prompt, or if | |
970 | we're handling an asynchronous target event and running in the | |
971 | background, just before returning to the event loop to process | |
972 | further input (or more target events). */ | |
3c216924 | 973 | if (current_ui->command_editing) |
d3d4baed | 974 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
975 | } |
976 | ||
1dbeed45 | 977 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 978 | { |
1dbeed45 TT |
979 | public: |
980 | gdb_readline_wrapper_cleanup () | |
981 | : m_handler_orig (current_ui->input_handler), | |
982 | m_already_prompted_orig (current_ui->command_editing | |
983 | ? rl_already_prompted : 0), | |
984 | m_target_is_async_orig (target_is_async_p ()), | |
985 | m_save_ui (¤t_ui) | |
986 | { | |
987 | current_ui->input_handler = gdb_readline_wrapper_line; | |
988 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 989 | |
1dbeed45 TT |
990 | if (m_target_is_async_orig) |
991 | target_async (0); | |
992 | } | |
2e03ee74 | 993 | |
1dbeed45 TT |
994 | ~gdb_readline_wrapper_cleanup () |
995 | { | |
996 | struct ui *ui = current_ui; | |
0017922d | 997 | |
1dbeed45 TT |
998 | if (ui->command_editing) |
999 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 1000 | |
1dbeed45 TT |
1001 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
1002 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 1003 | |
1dbeed45 TT |
1004 | /* Don't restore our input handler in readline yet. That would make |
1005 | readline prep the terminal (putting it in raw mode), while the | |
1006 | line we just read may trigger execution of a command that expects | |
1007 | the terminal in the default cooked/canonical mode, such as e.g., | |
1008 | running Python's interactive online help utility. See | |
1009 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 1010 | |
1dbeed45 TT |
1011 | gdb_readline_wrapper_result = NULL; |
1012 | gdb_readline_wrapper_done = 0; | |
1013 | ui->secondary_prompt_depth--; | |
1014 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 1015 | |
1dbeed45 TT |
1016 | after_char_processing_hook = saved_after_char_processing_hook; |
1017 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 1018 | |
1dbeed45 TT |
1019 | if (m_target_is_async_orig) |
1020 | target_async (1); | |
1021 | } | |
2e03ee74 | 1022 | |
1dbeed45 | 1023 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 1024 | |
1dbeed45 | 1025 | private: |
2e03ee74 | 1026 | |
95bc9f0b | 1027 | void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&); |
1dbeed45 | 1028 | int m_already_prompted_orig; |
93d6eb10 | 1029 | |
1dbeed45 TT |
1030 | /* Whether the target was async. */ |
1031 | int m_target_is_async_orig; | |
2e03ee74 | 1032 | |
4295e285 | 1033 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
1034 | scoped_restore_tmpl<struct ui *> m_save_ui; |
1035 | }; | |
1036 | ||
1037 | char * | |
1038 | gdb_readline_wrapper (const char *prompt) | |
1039 | { | |
1040 | struct ui *ui = current_ui; | |
4295e285 | 1041 | |
1dbeed45 | 1042 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 1043 | |
6e5d74e7 PA |
1044 | /* Display our prompt and prevent double prompt display. Don't pass |
1045 | down a NULL prompt, since that has special meaning for | |
1046 | display_gdb_prompt -- it indicates a request to print the primary | |
1047 | prompt, while we want a secondary prompt here. */ | |
1048 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1049 | if (ui->command_editing) |
1050 | rl_already_prompted = 1; | |
2e03ee74 | 1051 | |
362646f5 | 1052 | if (after_char_processing_hook) |
2e03ee74 DJ |
1053 | (*after_char_processing_hook) (); |
1054 | gdb_assert (after_char_processing_hook == NULL); | |
1055 | ||
e0dd0826 | 1056 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1057 | if (gdb_readline_wrapper_done) |
1058 | break; | |
b4f5539f | 1059 | |
1dbeed45 | 1060 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1061 | } |
1062 | ||
9e0b60a8 | 1063 | \f |
467d8519 TT |
1064 | /* The current saved history number from operate-and-get-next. |
1065 | This is -1 if not valid. */ | |
1066 | static int operate_saved_history = -1; | |
1067 | ||
1068 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1069 | do its work. */ | |
b9362cc7 | 1070 | static void |
5ae5f592 | 1071 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1072 | { |
1073 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1074 | |
467d8519 TT |
1075 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1076 | rl_get_previous_history (delta, 0); | |
1077 | operate_saved_history = -1; | |
1078 | ||
1079 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1080 | rl_redisplay (); |
467d8519 TT |
1081 | |
1082 | after_char_processing_hook = NULL; | |
1083 | rl_pre_input_hook = NULL; | |
1084 | } | |
1085 | ||
1086 | /* This is a gdb-local readline command handler. It accepts the | |
1087 | current command line (like RET does) and, if this command was taken | |
1088 | from the history, arranges for the next command in the history to | |
1089 | appear on the command line when the prompt returns. | |
1090 | We ignore the arguments. */ | |
1091 | static int | |
1092 | gdb_rl_operate_and_get_next (int count, int key) | |
1093 | { | |
b5686e99 MK |
1094 | int where; |
1095 | ||
362646f5 AC |
1096 | /* Use the async hook. */ |
1097 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1098 | |
b5686e99 MK |
1099 | /* Find the current line, and find the next line to use. */ |
1100 | where = where_history(); | |
1101 | ||
1fb2e2b5 PA |
1102 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1103 | || (where >= history_length - 1)) | |
b5686e99 MK |
1104 | operate_saved_history = where; |
1105 | else | |
1106 | operate_saved_history = where + 1; | |
1107 | ||
467d8519 TT |
1108 | return rl_newline (1, key); |
1109 | } | |
08b13bdd PP |
1110 | |
1111 | /* Number of user commands executed during this session. */ | |
1112 | ||
1113 | static int command_count = 0; | |
1114 | ||
1115 | /* Add the user command COMMAND to the input history list. */ | |
1116 | ||
1117 | void | |
1118 | gdb_add_history (const char *command) | |
1119 | { | |
08b13bdd | 1120 | command_count++; |
fc637f04 PP |
1121 | |
1122 | if (history_remove_duplicates != 0) | |
1123 | { | |
1124 | int lookbehind; | |
1125 | int lookbehind_threshold; | |
1126 | ||
1127 | /* The lookbehind threshold for finding a duplicate history entry is | |
1128 | bounded by command_count because we can't meaningfully delete | |
1129 | history entries that are already stored in the history file since | |
1130 | the history file is appended to. */ | |
1131 | if (history_remove_duplicates == -1 | |
1132 | || history_remove_duplicates > command_count) | |
1133 | lookbehind_threshold = command_count; | |
1134 | else | |
1135 | lookbehind_threshold = history_remove_duplicates; | |
1136 | ||
1137 | using_history (); | |
1138 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1139 | { | |
1140 | HIST_ENTRY *temp = previous_history (); | |
1141 | ||
1142 | if (temp == NULL) | |
1143 | break; | |
1144 | ||
1145 | if (strcmp (temp->line, command) == 0) | |
1146 | { | |
1147 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1148 | command_count--; | |
1149 | free_history_entry (prev); | |
1150 | break; | |
1151 | } | |
1152 | } | |
1153 | using_history (); | |
1154 | } | |
1155 | ||
1156 | add_history (command); | |
08b13bdd PP |
1157 | } |
1158 | ||
1159 | /* Safely append new history entries to the history file in a corruption-free | |
1160 | way using an intermediate local history file. */ | |
1161 | ||
1162 | static void | |
1163 | gdb_safe_append_history (void) | |
1164 | { | |
1165 | int ret, saved_errno; | |
08b13bdd | 1166 | |
8cff8730 TT |
1167 | std::string local_history_filename |
1168 | = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ()); | |
08b13bdd | 1169 | |
8cff8730 | 1170 | ret = rename (history_filename, local_history_filename.c_str ()); |
08b13bdd PP |
1171 | saved_errno = errno; |
1172 | if (ret < 0 && saved_errno != ENOENT) | |
1173 | { | |
1174 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1175 | history_filename, local_history_filename.c_str (), |
08b13bdd PP |
1176 | safe_strerror (saved_errno)); |
1177 | } | |
1178 | else | |
1179 | { | |
1180 | if (ret < 0) | |
1181 | { | |
1182 | /* If the rename failed with ENOENT then either the global history | |
1183 | file never existed in the first place or another GDB process is | |
1184 | currently appending to it (and has thus temporarily renamed it). | |
1185 | Since we can't distinguish between these two cases, we have to | |
1186 | conservatively assume the first case and therefore must write out | |
1187 | (not append) our known history to our local history file and try | |
1188 | to move it back anyway. Otherwise a global history file would | |
1189 | never get created! */ | |
1190 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1191 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1192 | } |
1193 | else | |
1194 | { | |
8cff8730 | 1195 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1196 | if (history_is_stifled ()) |
8cff8730 TT |
1197 | history_truncate_file (local_history_filename.c_str (), |
1198 | history_max_entries); | |
08b13bdd PP |
1199 | } |
1200 | ||
8cff8730 | 1201 | ret = rename (local_history_filename.c_str (), history_filename); |
08b13bdd PP |
1202 | saved_errno = errno; |
1203 | if (ret < 0 && saved_errno != EEXIST) | |
1204 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1205 | local_history_filename.c_str (), history_filename, |
08b13bdd PP |
1206 | safe_strerror (saved_errno)); |
1207 | } | |
08b13bdd PP |
1208 | } |
1209 | ||
b69d38af PA |
1210 | /* Read one line from the command input stream `instream' into a local |
1211 | static buffer. The buffer is made bigger as necessary. Returns | |
1212 | the address of the start of the line. | |
9e0b60a8 | 1213 | |
d318976c | 1214 | NULL is returned for end of file. |
9e0b60a8 | 1215 | |
b69d38af PA |
1216 | This routine either uses fancy command line editing or simple input |
1217 | as the user has requested. */ | |
10689f25 | 1218 | |
d318976c | 1219 | char * |
89fbedf3 | 1220 | command_line_input (const char *prompt_arg, const char *annotation_suffix) |
9e0b60a8 | 1221 | { |
b69d38af PA |
1222 | static struct buffer cmd_line_buffer; |
1223 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1224 | struct ui *ui = current_ui; |
38bcc89d | 1225 | const char *prompt = prompt_arg; |
b69d38af | 1226 | char *cmd; |
268a799a | 1227 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1228 | |
1229 | /* The annotation suffix must be non-NULL. */ | |
1230 | if (annotation_suffix == NULL) | |
1231 | annotation_suffix = ""; | |
9e0b60a8 | 1232 | |
268a799a | 1233 | if (from_tty && annotation_level > 1) |
d318976c | 1234 | { |
38bcc89d SM |
1235 | char *local_prompt; |
1236 | ||
224c3ddb SM |
1237 | local_prompt |
1238 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1239 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1240 | if (prompt == NULL) |
d318976c FN |
1241 | local_prompt[0] = '\0'; |
1242 | else | |
38bcc89d | 1243 | strcpy (local_prompt, prompt); |
d318976c FN |
1244 | strcat (local_prompt, "\n\032\032"); |
1245 | strcat (local_prompt, annotation_suffix); | |
1246 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1247 | |
1248 | prompt = local_prompt; | |
d318976c | 1249 | } |
9e0b60a8 | 1250 | |
b69d38af | 1251 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1252 | { |
b69d38af PA |
1253 | buffer_init (&cmd_line_buffer); |
1254 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1255 | } |
9e0b60a8 | 1256 | |
b69d38af PA |
1257 | /* Starting a new command line. */ |
1258 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1259 | |
6aa899ce | 1260 | #ifdef SIGTSTP |
d318976c | 1261 | if (job_control) |
6aa899ce | 1262 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1263 | #endif |
1264 | ||
1265 | while (1) | |
9e0b60a8 | 1266 | { |
2139e8dc | 1267 | gdb::unique_xmalloc_ptr<char> rl; |
b69d38af | 1268 | |
371d5dec MS |
1269 | /* Make sure that all output has been output. Some machines may |
1270 | let you get away with leaving out some of the gdb_flush, but | |
1271 | not all. */ | |
d318976c FN |
1272 | wrap_here (""); |
1273 | gdb_flush (gdb_stdout); | |
1274 | gdb_flush (gdb_stderr); | |
1275 | ||
6caa91b6 | 1276 | if (!source_file_name.empty ()) |
637537d0 | 1277 | ++source_line_number; |
d318976c | 1278 | |
268a799a | 1279 | if (from_tty && annotation_level > 1) |
d318976c | 1280 | { |
306d9ac5 DC |
1281 | puts_unfiltered ("\n\032\032pre-"); |
1282 | puts_unfiltered (annotation_suffix); | |
1283 | puts_unfiltered ("\n"); | |
d318976c FN |
1284 | } |
1285 | ||
1286 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1287 | if (deprecated_readline_hook |
1288 | && from_tty | |
1289 | && input_interactive_p (current_ui)) | |
d318976c | 1290 | { |
2139e8dc | 1291 | rl.reset ((*deprecated_readline_hook) (prompt)); |
d318976c | 1292 | } |
268a799a PA |
1293 | else if (command_editing_p |
1294 | && from_tty | |
1295 | && input_interactive_p (current_ui)) | |
d318976c | 1296 | { |
2139e8dc | 1297 | rl.reset (gdb_readline_wrapper (prompt)); |
d318976c | 1298 | } |
9e0b60a8 | 1299 | else |
d318976c | 1300 | { |
2139e8dc | 1301 | rl.reset (gdb_readline_no_editing (prompt)); |
d318976c | 1302 | } |
9e0b60a8 | 1303 | |
2139e8dc | 1304 | cmd = handle_line_of_input (&cmd_line_buffer, rl.get (), |
89fbedf3 | 1305 | 0, annotation_suffix); |
b69d38af | 1306 | if (cmd == (char *) EOF) |
d318976c | 1307 | { |
b69d38af | 1308 | cmd = NULL; |
d318976c | 1309 | break; |
9e0b60a8 | 1310 | } |
b69d38af | 1311 | if (cmd != NULL) |
d318976c | 1312 | break; |
9e0b60a8 | 1313 | |
6e5d74e7 PA |
1314 | /* Got partial input. I.e., got a line that ends with a |
1315 | continuation character (backslash). Suppress printing the | |
1316 | prompt again. */ | |
38bcc89d | 1317 | prompt = NULL; |
d318976c | 1318 | } |
9e0b60a8 | 1319 | |
6aa899ce | 1320 | #ifdef SIGTSTP |
d318976c | 1321 | if (job_control) |
6aa899ce | 1322 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1323 | #endif |
9e0b60a8 | 1324 | |
b69d38af | 1325 | return cmd; |
9e0b60a8 JM |
1326 | } |
1327 | \f | |
c61b06a1 | 1328 | /* See top.h. */ |
9e0b60a8 | 1329 | void |
c61b06a1 | 1330 | print_gdb_version (struct ui_file *stream, bool interactive) |
9e0b60a8 JM |
1331 | { |
1332 | /* From GNU coding standards, first line is meant to be easy for a | |
1333 | program to parse, and is just canonical program name and version | |
371d5dec | 1334 | number, which starts after last space. */ |
9e0b60a8 | 1335 | |
d47032b7 TT |
1336 | ui_file_style style; |
1337 | if (interactive) | |
1338 | { | |
1339 | ui_file_style nstyle = { ui_file_style::MAGENTA, ui_file_style::NONE, | |
1340 | ui_file_style::BOLD }; | |
1341 | style = nstyle; | |
1342 | } | |
1343 | fprintf_styled (stream, style, "GNU gdb %s%s\n", PKGVERSION, version); | |
9e0b60a8 | 1344 | |
371d5dec | 1345 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1346 | |
3e43a32a | 1347 | fprintf_filtered (stream, |
66d91b39 | 1348 | "Copyright (C) 2019 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1349 | |
1350 | /* Following the copyright is a brief statement that the program is | |
1351 | free software, that users are free to copy and change it on | |
1352 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1353 | there is no warranty. */ |
9e0b60a8 JM |
1354 | |
1355 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1356 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1357 | \nThis is free software: you are free to change and redistribute it.\n\ | |
c61b06a1 TT |
1358 | There is NO WARRANTY, to the extent permitted by law."); |
1359 | ||
1360 | if (!interactive) | |
1361 | return; | |
1362 | ||
1363 | fprintf_filtered (stream, ("\nType \"show copying\" and " | |
1364 | "\"show warranty\" for details.\n")); | |
9e0b60a8 | 1365 | |
371d5dec | 1366 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1367 | |
1368 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1369 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1370 | { |
3e43a32a MS |
1371 | fprintf_filtered (stream, "--host=%s --target=%s", |
1372 | host_name, target_name); | |
9e0b60a8 JM |
1373 | } |
1374 | else | |
1375 | { | |
1376 | fprintf_filtered (stream, "%s", host_name); | |
1377 | } | |
c61b06a1 TT |
1378 | fprintf_filtered (stream, "\".\n"); |
1379 | ||
1380 | fprintf_filtered (stream, _("Type \"show configuration\" " | |
1381 | "for configuration details.\n")); | |
c16158bc JM |
1382 | |
1383 | if (REPORT_BUGS_TO[0]) | |
1384 | { | |
6eaaf48b | 1385 | fprintf_filtered (stream, |
c61b06a1 | 1386 | _("For bug reporting instructions, please see:\n")); |
1cf55f60 | 1387 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1388 | } |
1cf55f60 PM |
1389 | fprintf_filtered (stream, |
1390 | _("Find the GDB manual and other documentation \ | |
c61b06a1 TT |
1391 | resources online at:\n <http://www.gnu.org/software/gdb/documentation/>.")); |
1392 | fprintf_filtered (stream, "\n\n"); | |
1cf55f60 | 1393 | fprintf_filtered (stream, _("For help, type \"help\".\n")); |
7734102d EZ |
1394 | fprintf_filtered (stream, |
1395 | _("Type \"apropos word\" to search for commands \ | |
1396 | related to \"word\".")); | |
9e0b60a8 | 1397 | } |
6eaaf48b EZ |
1398 | |
1399 | /* Print the details of GDB build-time configuration. */ | |
1400 | void | |
1401 | print_gdb_configuration (struct ui_file *stream) | |
1402 | { | |
1403 | fprintf_filtered (stream, _("\ | |
1404 | This GDB was configured as follows:\n\ | |
1405 | configure --host=%s --target=%s\n\ | |
1406 | "), host_name, target_name); | |
1407 | fprintf_filtered (stream, _("\ | |
1408 | --with-auto-load-dir=%s\n\ | |
1409 | --with-auto-load-safe-path=%s\n\ | |
1410 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1411 | #if HAVE_LIBEXPAT | |
1412 | fprintf_filtered (stream, _("\ | |
1413 | --with-expat\n\ | |
1414 | ")); | |
1415 | #else | |
1416 | fprintf_filtered (stream, _("\ | |
1417 | --without-expat\n\ | |
1418 | ")); | |
1419 | #endif | |
1420 | if (GDB_DATADIR[0]) | |
1421 | fprintf_filtered (stream, _("\ | |
1422 | --with-gdb-datadir=%s%s\n\ | |
1423 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1424 | #ifdef ICONV_BIN | |
1425 | fprintf_filtered (stream, _("\ | |
1426 | --with-iconv-bin=%s%s\n\ | |
1427 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1428 | #endif | |
1429 | if (JIT_READER_DIR[0]) | |
1430 | fprintf_filtered (stream, _("\ | |
1431 | --with-jit-reader-dir=%s%s\n\ | |
1432 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1433 | #if HAVE_LIBUNWIND_IA64_H | |
1434 | fprintf_filtered (stream, _("\ | |
1435 | --with-libunwind-ia64\n\ | |
1436 | ")); | |
1437 | #else | |
1438 | fprintf_filtered (stream, _("\ | |
1439 | --without-libunwind-ia64\n\ | |
1440 | ")); | |
1441 | #endif | |
1442 | #if HAVE_LIBLZMA | |
1443 | fprintf_filtered (stream, _("\ | |
1444 | --with-lzma\n\ | |
1445 | ")); | |
1446 | #else | |
1447 | fprintf_filtered (stream, _("\ | |
1448 | --without-lzma\n\ | |
1449 | ")); | |
1450 | #endif | |
9bd8e0b0 EZ |
1451 | #if HAVE_LIBBABELTRACE |
1452 | fprintf_filtered (stream, _("\ | |
1453 | --with-babeltrace\n\ | |
1454 | ")); | |
1455 | #else | |
1456 | fprintf_filtered (stream, _("\ | |
1457 | --without-babeltrace\n\ | |
1458 | ")); | |
1459 | #endif | |
1460 | #if HAVE_LIBIPT | |
1461 | fprintf_filtered (stream, _("\ | |
1462 | --with-intel-pt\n\ | |
1463 | ")); | |
1464 | #else | |
1465 | fprintf_filtered (stream, _("\ | |
1466 | --without-intel-pt\n\ | |
1467 | ")); | |
1468 | #endif | |
1469 | #if HAVE_LIBMCHECK | |
1470 | fprintf_filtered (stream, _("\ | |
1471 | --enable-libmcheck\n\ | |
1472 | ")); | |
1473 | #else | |
1474 | fprintf_filtered (stream, _("\ | |
1475 | --disable-libmcheck\n\ | |
1476 | ")); | |
1477 | #endif | |
1478 | #if HAVE_LIBMPFR | |
1479 | fprintf_filtered (stream, _("\ | |
1480 | --with-mpfr\n\ | |
1481 | ")); | |
1482 | #else | |
1483 | fprintf_filtered (stream, _("\ | |
1484 | --without-mpfr\n\ | |
1485 | ")); | |
1486 | #endif | |
6eaaf48b EZ |
1487 | #ifdef WITH_PYTHON_PATH |
1488 | fprintf_filtered (stream, _("\ | |
1489 | --with-python=%s%s\n\ | |
1490 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
50c7c5b8 ДП |
1491 | #else |
1492 | fprintf_filtered (stream, _("\ | |
1493 | --without-python\n\ | |
1494 | ")); | |
6eaaf48b | 1495 | #endif |
97d66cc6 EZ |
1496 | #if HAVE_GUILE |
1497 | fprintf_filtered (stream, _("\ | |
1498 | --with-guile\n\ | |
1499 | ")); | |
1500 | #else | |
1501 | fprintf_filtered (stream, _("\ | |
1502 | --without-guile\n\ | |
1503 | ")); | |
1504 | #endif | |
189b8c2e ST |
1505 | #if HAVE_SOURCE_HIGHLIGHT |
1506 | fprintf_filtered (stream, _("\ | |
1507 | --enable-source-highlight\n\ | |
1508 | ")); | |
1509 | #else | |
1510 | fprintf_filtered (stream, _("\ | |
1511 | --disable-source-highlight\n\ | |
1512 | ")); | |
1513 | #endif | |
6eaaf48b EZ |
1514 | #ifdef RELOC_SRCDIR |
1515 | fprintf_filtered (stream, _("\ | |
1516 | --with-relocated-sources=%s\n\ | |
1517 | "), RELOC_SRCDIR); | |
1518 | #endif | |
1519 | if (DEBUGDIR[0]) | |
1520 | fprintf_filtered (stream, _("\ | |
1521 | --with-separate-debug-dir=%s%s\n\ | |
1522 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1523 | if (TARGET_SYSTEM_ROOT[0]) | |
1524 | fprintf_filtered (stream, _("\ | |
1525 | --with-sysroot=%s%s\n\ | |
1526 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1527 | if (SYSTEM_GDBINIT[0]) | |
1528 | fprintf_filtered (stream, _("\ | |
1529 | --with-system-gdbinit=%s%s\n\ | |
1530 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
48d1d6f5 EZ |
1531 | /* We assume "relocatable" will be printed at least once, thus we always |
1532 | print this text. It's a reasonably safe assumption for now. */ | |
1533 | fprintf_filtered (stream, _("\n\ | |
1534 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1535 | tree, and GDB will still find it.)\n\ | |
1536 | ")); | |
6eaaf48b | 1537 | } |
9e0b60a8 | 1538 | \f |
95298e72 | 1539 | |
ab821bc6 PA |
1540 | /* The current top level prompt, settable with "set prompt", and/or |
1541 | with the python `gdb.prompt_hook' hook. */ | |
1542 | static char *top_prompt; | |
9e0b60a8 | 1543 | |
ab821bc6 | 1544 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1545 | |
1546 | char * | |
ab821bc6 | 1547 | get_prompt (void) |
95298e72 | 1548 | { |
ab821bc6 | 1549 | return top_prompt; |
95298e72 PM |
1550 | } |
1551 | ||
ab821bc6 | 1552 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1553 | |
1554 | void | |
ab821bc6 | 1555 | set_prompt (const char *s) |
95298e72 | 1556 | { |
ab821bc6 | 1557 | char *p = xstrdup (s); |
95298e72 | 1558 | |
ab821bc6 PA |
1559 | xfree (top_prompt); |
1560 | top_prompt = p; | |
9e0b60a8 | 1561 | } |
9e0b60a8 | 1562 | \f |
c5aa993b | 1563 | |
b0abbc58 | 1564 | struct qt_args |
9e0b60a8 | 1565 | { |
b0abbc58 JJ |
1566 | int from_tty; |
1567 | }; | |
9e0b60a8 | 1568 | |
54a012c9 PA |
1569 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1570 | inferior, depending on how we originally gained control of it. */ | |
1571 | ||
1572 | static int | |
1573 | kill_or_detach (struct inferior *inf, void *args) | |
1574 | { | |
19ba03f4 | 1575 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 | 1576 | |
6c95b8df PA |
1577 | if (inf->pid == 0) |
1578 | return 0; | |
1579 | ||
00431a78 | 1580 | thread_info *thread = any_thread_of_inferior (inf); |
b8fa0bfa | 1581 | if (thread != NULL) |
9e0b60a8 | 1582 | { |
00431a78 | 1583 | switch_to_thread (thread); |
c35b1492 PA |
1584 | |
1585 | /* Leave core files alone. */ | |
1586 | if (target_has_execution) | |
1587 | { | |
1588 | if (inf->attach_flag) | |
6e1e1966 | 1589 | target_detach (inf, qt->from_tty); |
c35b1492 PA |
1590 | else |
1591 | target_kill (); | |
1592 | } | |
9e0b60a8 JM |
1593 | } |
1594 | ||
54a012c9 PA |
1595 | return 0; |
1596 | } | |
1597 | ||
b8fa0bfa PA |
1598 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1599 | will do to each inferior on a "quit". ARG points to a struct | |
1600 | ui_out where output is to be collected. */ | |
1601 | ||
1602 | static int | |
1603 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1604 | { | |
19ba03f4 | 1605 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1606 | |
6c95b8df PA |
1607 | if (inf->pid == 0) |
1608 | return 0; | |
1609 | ||
b8fa0bfa PA |
1610 | if (inf->attach_flag) |
1611 | fprintf_filtered (stb, | |
1612 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
a068643d | 1613 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1614 | else |
1615 | fprintf_filtered (stb, | |
1616 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
a068643d | 1617 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1618 | |
1619 | return 0; | |
1620 | } | |
1621 | ||
1622 | /* If necessary, make the user confirm that we should quit. Return | |
1623 | non-zero if we should quit, zero if we shouldn't. */ | |
1624 | ||
1625 | int | |
1626 | quit_confirm (void) | |
1627 | { | |
b8fa0bfa PA |
1628 | /* Don't even ask if we're only debugging a core file inferior. */ |
1629 | if (!have_live_inferiors ()) | |
1630 | return 1; | |
1631 | ||
1632 | /* Build the query string as a single string. */ | |
d7e74731 | 1633 | string_file stb; |
b8fa0bfa | 1634 | |
d7e74731 PA |
1635 | stb.puts (_("A debugging session is active.\n\n")); |
1636 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1637 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1638 | |
d7e74731 | 1639 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1640 | } |
1641 | ||
18206ca3 PP |
1642 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1643 | terminal so that we leave the terminal in the state we acquired it. */ | |
1644 | ||
1645 | static void | |
1646 | undo_terminal_modifications_before_exit (void) | |
1647 | { | |
3c216924 PA |
1648 | struct ui *saved_top_level = current_ui; |
1649 | ||
223ffa71 | 1650 | target_terminal::ours (); |
3c216924 PA |
1651 | |
1652 | current_ui = main_ui; | |
1653 | ||
18206ca3 PP |
1654 | #if defined(TUI) |
1655 | tui_disable (); | |
1656 | #endif | |
3c216924 PA |
1657 | gdb_disable_readline (); |
1658 | ||
1659 | current_ui = saved_top_level; | |
18206ca3 PP |
1660 | } |
1661 | ||
1662 | ||
b0abbc58 JJ |
1663 | /* Quit without asking for confirmation. */ |
1664 | ||
1665 | void | |
36cf1806 | 1666 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1667 | { |
1668 | int exit_code = 0; | |
365c70b1 | 1669 | struct qt_args qt; |
b0abbc58 | 1670 | |
18206ca3 PP |
1671 | undo_terminal_modifications_before_exit (); |
1672 | ||
7734102d | 1673 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1674 | value of that expression. */ |
36cf1806 TT |
1675 | if (exit_arg) |
1676 | exit_code = *exit_arg; | |
4b0ad762 AS |
1677 | else if (return_child_result) |
1678 | exit_code = return_child_result_value; | |
b0abbc58 | 1679 | |
365c70b1 JJ |
1680 | qt.from_tty = from_tty; |
1681 | ||
b0abbc58 | 1682 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1683 | |
1684 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
a70b8144 | 1685 | try |
2f9d54cf PA |
1686 | { |
1687 | disconnect_tracing (); | |
1688 | iterate_over_inferiors (kill_or_detach, &qt); | |
1689 | } | |
230d2906 | 1690 | catch (const gdb_exception &ex) |
492d29ea PA |
1691 | { |
1692 | exception_print (gdb_stderr, ex); | |
1693 | } | |
2f9d54cf PA |
1694 | |
1695 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1696 | them all out. */ | |
a70b8144 | 1697 | try |
2f9d54cf PA |
1698 | { |
1699 | pop_all_targets (); | |
1700 | } | |
230d2906 | 1701 | catch (const gdb_exception &ex) |
492d29ea PA |
1702 | { |
1703 | exception_print (gdb_stderr, ex); | |
1704 | } | |
2f9d54cf PA |
1705 | |
1706 | /* Save the history information if it is appropriate to do so. */ | |
a70b8144 | 1707 | try |
2f9d54cf | 1708 | { |
268a799a PA |
1709 | if (write_history_p && history_filename) |
1710 | { | |
1711 | struct ui *ui; | |
1712 | int save = 0; | |
1713 | ||
1714 | /* History is currently shared between all UIs. If there's | |
1715 | any UI with a terminal, save history. */ | |
1716 | ALL_UIS (ui) | |
1717 | { | |
1718 | if (input_interactive_p (ui)) | |
1719 | { | |
1720 | save = 1; | |
1721 | break; | |
1722 | } | |
1723 | } | |
1724 | ||
1725 | if (save) | |
1726 | gdb_safe_append_history (); | |
1727 | } | |
2f9d54cf | 1728 | } |
230d2906 | 1729 | catch (const gdb_exception &ex) |
492d29ea PA |
1730 | { |
1731 | exception_print (gdb_stderr, ex); | |
1732 | } | |
2f9d54cf | 1733 | |
9d1447e0 SDJ |
1734 | /* Destroy any values currently allocated now instead of leaving it |
1735 | to global destructors, because that may be too late. For | |
1736 | example, the destructors of xmethod values call into the Python | |
1737 | runtime, which is finalized via a final cleanup. */ | |
1738 | finalize_values (); | |
1739 | ||
2f9d54cf | 1740 | /* Do any final cleanups before exiting. */ |
a70b8144 | 1741 | try |
2f9d54cf | 1742 | { |
fe7b42e5 | 1743 | do_final_cleanups (); |
2f9d54cf | 1744 | } |
230d2906 | 1745 | catch (const gdb_exception &ex) |
492d29ea PA |
1746 | { |
1747 | exception_print (gdb_stderr, ex); | |
1748 | } | |
b0abbc58 | 1749 | |
9e0b60a8 JM |
1750 | exit (exit_code); |
1751 | } | |
1752 | ||
268a799a PA |
1753 | /* The value of the "interactive-mode" setting. */ |
1754 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1755 | |
268a799a PA |
1756 | /* Implement the "show interactive-mode" option. */ |
1757 | ||
1758 | static void | |
1759 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1760 | struct cmd_list_element *c, | |
1761 | const char *value) | |
9e0b60a8 | 1762 | { |
268a799a PA |
1763 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1764 | fprintf_filtered (file, "Debugger's interactive mode " | |
1765 | "is %s (currently %s).\n", | |
d9de1fe3 | 1766 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1767 | else |
1768 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1769 | } | |
1770 | ||
1771 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1772 | |
268a799a PA |
1773 | int |
1774 | input_interactive_p (struct ui *ui) | |
1775 | { | |
c63a1f86 JK |
1776 | if (batch_flag) |
1777 | return 0; | |
1778 | ||
268a799a PA |
1779 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1780 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1781 | |
268a799a | 1782 | return ui->input_interactive_p; |
9e0b60a8 JM |
1783 | } |
1784 | \f | |
9e0b60a8 | 1785 | static void |
0b39b52e | 1786 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1787 | { |
dc7eb48e PA |
1788 | /* Can't call dont_repeat here because we're not necessarily reading |
1789 | from stdin. */ | |
1790 | *saved_command_line = 0; | |
9e0b60a8 JM |
1791 | } |
1792 | \f | |
1793 | /* Functions to manipulate command line editing control variables. */ | |
1794 | ||
1795 | /* Number of commands to print in each call to show_commands. */ | |
1796 | #define Hist_print 10 | |
d318976c | 1797 | void |
85c4be7c | 1798 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1799 | { |
1800 | /* Index for history commands. Relative to history_base. */ | |
1801 | int offset; | |
1802 | ||
1803 | /* Number of the history entry which we are planning to display next. | |
1804 | Relative to history_base. */ | |
1805 | static int num = 0; | |
1806 | ||
9e0b60a8 | 1807 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1808 | |
1809 | if (args) | |
1810 | { | |
1811 | if (args[0] == '+' && args[1] == '\0') | |
1812 | /* "info editing +" should print from the stored position. */ | |
1813 | ; | |
1814 | else | |
1815 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1816 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1817 | } |
1818 | /* "show commands" means print the last Hist_print commands. */ | |
1819 | else | |
1820 | { | |
840a9a1f | 1821 | num = history_length - Hist_print; |
9e0b60a8 JM |
1822 | } |
1823 | ||
1824 | if (num < 0) | |
1825 | num = 0; | |
1826 | ||
1827 | /* If there are at least Hist_print commands, we want to display the last | |
1828 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1829 | if (history_length - num < Hist_print) |
9e0b60a8 | 1830 | { |
840a9a1f | 1831 | num = history_length - Hist_print; |
9e0b60a8 JM |
1832 | if (num < 0) |
1833 | num = 0; | |
1834 | } | |
1835 | ||
840a9a1f PA |
1836 | for (offset = num; |
1837 | offset < num + Hist_print && offset < history_length; | |
1838 | offset++) | |
9e0b60a8 JM |
1839 | { |
1840 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1841 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1842 | } |
1843 | ||
1844 | /* The next command we want to display is the next one that we haven't | |
1845 | displayed yet. */ | |
1846 | num += Hist_print; | |
1847 | ||
1848 | /* If the user repeats this command with return, it should do what | |
1849 | "show commands +" does. This is unnecessary if arg is null, | |
1850 | because "show commands +" is not useful after "show commands". */ | |
1851 | if (from_tty && args) | |
85c4be7c | 1852 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1853 | } |
1854 | ||
ebfd00d2 | 1855 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1856 | |
ebfd00d2 | 1857 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1858 | |
ebfd00d2 PP |
1859 | static void |
1860 | set_readline_history_size (int history_size) | |
1861 | { | |
1862 | gdb_assert (history_size >= -1); | |
840a9a1f | 1863 | |
ebfd00d2 | 1864 | if (history_size == -1) |
840a9a1f | 1865 | unstifle_history (); |
883b9c6c | 1866 | else |
ebfd00d2 PP |
1867 | stifle_history (history_size); |
1868 | } | |
1869 | ||
1870 | /* Called by do_setshow_command. */ | |
1871 | static void | |
eb4c3f4a TT |
1872 | set_history_size_command (const char *args, |
1873 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1874 | { |
1875 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1876 | } |
1877 | ||
d318976c | 1878 | void |
981a3fb3 | 1879 | set_history (const char *args, int from_tty) |
9e0b60a8 | 1880 | { |
3e43a32a MS |
1881 | printf_unfiltered (_("\"set history\" must be followed " |
1882 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1883 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1884 | } |
1885 | ||
d318976c | 1886 | void |
981a3fb3 | 1887 | show_history (const char *args, int from_tty) |
9e0b60a8 JM |
1888 | { |
1889 | cmd_show_list (showhistlist, from_tty, ""); | |
1890 | } | |
1891 | ||
371d5dec | 1892 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 | 1893 | |
94f2c730 | 1894 | /* Called by do_set_command. An elaborate joke. */ |
d318976c | 1895 | void |
eb4c3f4a | 1896 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1897 | { |
6f937416 | 1898 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1899 | struct cmd_list_element *showcmd; |
1900 | ||
1901 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1902 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 | 1903 | |
94f2c730 PW |
1904 | if (c->doc && c->doc_allocated) |
1905 | xfree ((char *) c->doc); | |
1906 | if (showcmd->doc && showcmd->doc_allocated) | |
1907 | xfree ((char *) showcmd->doc); | |
9e0b60a8 JM |
1908 | if (info_verbose) |
1909 | { | |
94f2c730 PW |
1910 | c->doc = _("Set verbose printing of informational messages."); |
1911 | showcmd->doc = _("Show verbose printing of informational messages."); | |
9e0b60a8 JM |
1912 | } |
1913 | else | |
1914 | { | |
94f2c730 PW |
1915 | c->doc = _("Set verbosity."); |
1916 | showcmd->doc = _("Show verbosity."); | |
9e0b60a8 | 1917 | } |
94f2c730 PW |
1918 | c->doc_allocated = 0; |
1919 | showcmd->doc_allocated = 0; | |
9e0b60a8 JM |
1920 | } |
1921 | ||
9e0b60a8 | 1922 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1923 | have been read so that the user can change the history file via his |
1924 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1925 | overrides all of this. */ | |
9e0b60a8 JM |
1926 | |
1927 | void | |
fba45db2 | 1928 | init_history (void) |
9e0b60a8 | 1929 | { |
b5a9bfbe | 1930 | const char *tmpenv; |
9e0b60a8 | 1931 | |
b58c513b | 1932 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1933 | if (tmpenv) |
840a9a1f | 1934 | { |
bc460514 | 1935 | long var; |
0fc26caf | 1936 | int saved_errno; |
bc460514 PP |
1937 | char *endptr; |
1938 | ||
1939 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1940 | errno = 0; |
bc460514 | 1941 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1942 | saved_errno = errno; |
bc460514 PP |
1943 | endptr = skip_spaces (endptr); |
1944 | ||
1945 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1946 | empty string, a negative number or a huge positive number (larger than | |
1947 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1948 | history size to the number we have read. This behavior is consistent | |
1949 | with how bash handles HISTSIZE. */ | |
1950 | if (*endptr != '\0') | |
1951 | ; | |
1952 | else if (*tmpenv == '\0' | |
1953 | || var < 0 | |
0fc26caf PP |
1954 | || var > INT_MAX |
1955 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1956 | errno after calling strtol to distinguish between a value that | |
1957 | is exactly INT_MAX and an overflowing value that was clamped | |
1958 | to INT_MAX. */ | |
1959 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1960 | history_size_setshow_var = -1; |
1961 | else | |
1962 | history_size_setshow_var = var; | |
840a9a1f | 1963 | } |
bc460514 PP |
1964 | |
1965 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1966 | default. */ | |
1967 | if (history_size_setshow_var == -2) | |
840a9a1f | 1968 | history_size_setshow_var = 256; |
9e0b60a8 | 1969 | |
ebfd00d2 | 1970 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1971 | |
1972 | tmpenv = getenv ("GDBHISTFILE"); | |
1973 | if (tmpenv) | |
1b36a34b | 1974 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1975 | else if (!history_filename) |
1976 | { | |
1977 | /* We include the current directory so that if the user changes | |
1978 | directories the file written will be the same as the one | |
1979 | that was read. */ | |
a0b3c4fd | 1980 | #ifdef __MSDOS__ |
eb2f494a | 1981 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1982 | history_filename = concat (current_directory, "/_gdb_history", |
1983 | (char *)NULL); | |
a0b3c4fd | 1984 | #else |
1754f103 MK |
1985 | history_filename = concat (current_directory, "/.gdb_history", |
1986 | (char *)NULL); | |
a0b3c4fd | 1987 | #endif |
c5aa993b | 1988 | } |
9e0b60a8 JM |
1989 | read_history (history_filename); |
1990 | } | |
1991 | ||
920d2a44 | 1992 | static void |
ab821bc6 PA |
1993 | show_prompt (struct ui_file *file, int from_tty, |
1994 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1995 | { |
1996 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1997 | } | |
1998 | ||
3c216924 PA |
1999 | /* "set editing" command. */ |
2000 | ||
2001 | static void | |
eb4c3f4a | 2002 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
2003 | { |
2004 | change_line_handler (set_editing_cmd_var); | |
2005 | /* Update the control variable so that MI's =cmd-param-changed event | |
2006 | shows the correct value. */ | |
2007 | set_editing_cmd_var = current_ui->command_editing; | |
2008 | } | |
2009 | ||
920d2a44 | 2010 | static void |
3c216924 PA |
2011 | show_editing (struct ui_file *file, int from_tty, |
2012 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2013 | { |
3e43a32a MS |
2014 | fprintf_filtered (file, _("Editing of command lines as " |
2015 | "they are typed is %s.\n"), | |
3c216924 | 2016 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
2017 | } |
2018 | ||
2019 | static void | |
2020 | show_annotation_level (struct ui_file *file, int from_tty, | |
2021 | struct cmd_list_element *c, const char *value) | |
2022 | { | |
2023 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
2024 | } | |
2025 | ||
2026 | static void | |
2027 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
2028 | struct cmd_list_element *c, const char *value) | |
2029 | { | |
3e43a32a MS |
2030 | fprintf_filtered (file, _("Notification of completion for " |
2031 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
2032 | value); |
2033 | } | |
6dea1fbd | 2034 | |
8d551b02 DE |
2035 | /* New values of the "data-directory" parameter are staged here. */ |
2036 | static char *staged_gdb_datadir; | |
2037 | ||
6dea1fbd JK |
2038 | /* "set" command for the gdb_datadir configuration variable. */ |
2039 | ||
2040 | static void | |
eb4c3f4a | 2041 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 2042 | { |
8d551b02 | 2043 | set_gdb_data_directory (staged_gdb_datadir); |
76727919 | 2044 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
2045 | } |
2046 | ||
8d551b02 DE |
2047 | /* "show" command for the gdb_datadir configuration variable. */ |
2048 | ||
2049 | static void | |
2050 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2051 | struct cmd_list_element *c, const char *value) | |
2052 | { | |
2053 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
2054 | gdb_datadir); | |
2055 | } | |
2056 | ||
97c85fc6 | 2057 | static void |
eb4c3f4a TT |
2058 | set_history_filename (const char *args, |
2059 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
2060 | { |
2061 | /* We include the current directory so that if the user changes | |
2062 | directories the file written will be the same as the one | |
2063 | that was read. */ | |
2064 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
2065 | history_filename = reconcat (history_filename, current_directory, "/", | |
2066 | history_filename, (char *) NULL); | |
2067 | } | |
2068 | ||
7734102d EZ |
2069 | static void |
2070 | init_gdb_version_vars (void) | |
2071 | { | |
2072 | struct internalvar *major_version_var = create_internalvar ("_gdb_major"); | |
2073 | struct internalvar *minor_version_var = create_internalvar ("_gdb_minor"); | |
2074 | int vmajor = 0, vminor = 0, vrevision = 0; | |
2075 | sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision); | |
2076 | set_internalvar_integer (major_version_var, vmajor); | |
2077 | set_internalvar_integer (minor_version_var, vminor + (vrevision > 0)); | |
2078 | } | |
2079 | ||
9e0b60a8 | 2080 | static void |
fba45db2 | 2081 | init_main (void) |
9e0b60a8 | 2082 | { |
60eb5395 PA |
2083 | struct cmd_list_element *c; |
2084 | ||
ab821bc6 PA |
2085 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2086 | the DEFAULT_PROMPT is. */ | |
2087 | set_prompt (DEFAULT_PROMPT); | |
2088 | ||
9e0b60a8 JM |
2089 | /* Set the important stuff up for command editing. */ |
2090 | command_editing_p = 1; | |
9e0b60a8 | 2091 | history_expansion_p = 0; |
452a569e | 2092 | write_history_p = 0; |
9e0b60a8 JM |
2093 | |
2094 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2095 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2096 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2097 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2098 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2099 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2100 | rl_readline_name = "gdb"; |
7cb3ec5e | 2101 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2102 | |
467d8519 TT |
2103 | /* The name for this defun comes from Bash, where it originated. |
2104 | 15 is Control-o, the same binding this function has in Bash. */ | |
2105 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2106 | ||
4d28ad1e | 2107 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2108 | &top_prompt, |
3e43a32a MS |
2109 | _("Set gdb's prompt"), |
2110 | _("Show gdb's prompt"), | |
ab821bc6 PA |
2111 | NULL, NULL, |
2112 | show_prompt, | |
4d28ad1e | 2113 | &setlist, &showlist); |
9e0b60a8 | 2114 | |
1bedd215 | 2115 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2116 | Don't repeat this command.\nPrimarily \ |
2117 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2118 | hitting return.")); |
9e0b60a8 | 2119 | |
5bf193a2 | 2120 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2121 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2122 | Set editing of command lines as they are typed."), _("\ |
2123 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2124 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2125 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2126 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2127 | set_editing, |
2128 | show_editing, | |
5bf193a2 AC |
2129 | &setlist, &showlist); |
2130 | ||
2131 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2132 | Set saving of the history record on exit."), _("\ | |
2133 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2134 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2135 | Without an argument, saving is enabled."), |
2136 | NULL, | |
920d2a44 | 2137 | show_write_history_p, |
5bf193a2 | 2138 | &sethistlist, &showhistlist); |
9e0b60a8 | 2139 | |
ebfd00d2 PP |
2140 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2141 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2142 | Set the size of the command history,"), _("\ |
2143 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2144 | ie. the number of previous commands to keep a record of.\n\ |
2145 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2146 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2147 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2148 | set_history_size_command, |
2149 | show_history_size, | |
2150 | &sethistlist, &showhistlist); | |
4d28ad1e | 2151 | |
fc637f04 PP |
2152 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2153 | &history_remove_duplicates, _("\ | |
2154 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2155 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2156 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2157 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2158 | entry, each time a new history entry is added.\n\ | |
2159 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2160 | Only history entries added during this session are considered for removal.\n\ | |
2161 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2162 | By default this option is set to 0."), | |
2163 | NULL, | |
2164 | show_history_remove_duplicates, | |
2165 | &sethistlist, &showhistlist); | |
2166 | ||
4d28ad1e AC |
2167 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2168 | Set the filename in which to record the command history"), _("\ | |
2169 | Show the filename in which to record the command history"), _("\ | |
2170 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2171 | set_history_filename, |
920d2a44 | 2172 | show_history_filename, |
4d28ad1e | 2173 | &sethistlist, &showhistlist); |
9e0b60a8 | 2174 | |
e360902b | 2175 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2176 | Set whether to confirm potentially dangerous operations."), _("\ |
2177 | Show whether to confirm potentially dangerous operations."), NULL, | |
2178 | NULL, | |
e360902b | 2179 | show_confirm, |
5bf193a2 | 2180 | &setlist, &showlist); |
9e0b60a8 | 2181 | |
85c07804 AC |
2182 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2183 | Set annotation_level."), _("\ | |
2184 | Show annotation_level."), _("\ | |
9e0b60a8 | 2185 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2186 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2187 | NULL, |
920d2a44 | 2188 | show_annotation_level, |
85c07804 | 2189 | &setlist, &showlist); |
362646f5 | 2190 | |
5bf193a2 AC |
2191 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2192 | &exec_done_display_p, _("\ | |
2193 | Set notification of completion for asynchronous execution commands."), _("\ | |
2194 | Show notification of completion for asynchronous execution commands."), _("\ | |
2195 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2196 | NULL, | |
920d2a44 | 2197 | show_exec_done_display_p, |
5bf193a2 | 2198 | &setlist, &showlist); |
b14b1491 TT |
2199 | |
2200 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2201 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2202 | _("Show GDB's data directory."), |
2203 | _("\ | |
2204 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2205 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2206 | &setlist, |
2207 | &showlist); | |
268a799a PA |
2208 | |
2209 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2210 | &interactive_mode, _("\ | |
2211 | Set whether GDB's standard input is a terminal."), _("\ | |
2212 | Show whether GDB's standard input is a terminal."), _("\ | |
2213 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2214 | means that GDB should wait for the user to answer queries associated to\n\ | |
2215 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2216 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2217 | If auto (the default), determine which mode to use based on the standard\n\ | |
2218 | input settings."), | |
2219 | NULL, | |
2220 | show_interactive_mode, | |
2221 | &setlist, &showlist); | |
60eb5395 PA |
2222 | |
2223 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2224 | Create a new UI. It takes two arguments:\n\ | |
2225 | The first argument is the name of the interpreter to run.\n\ | |
89549d7f | 2226 | The second argument is the terminal the UI runs on."), &cmdlist); |
60eb5395 | 2227 | set_cmd_completer (c, interpreter_completer); |
9e0b60a8 | 2228 | } |
64cdedad EZ |
2229 | |
2230 | void | |
2231 | gdb_init (char *argv0) | |
2232 | { | |
68bb5386 PW |
2233 | saved_command_line = xstrdup (""); |
2234 | previous_saved_command_line = xstrdup (""); | |
2235 | ||
64cdedad EZ |
2236 | if (pre_init_ui_hook) |
2237 | pre_init_ui_hook (); | |
2238 | ||
371d5dec | 2239 | /* Run the init function of each source file. */ |
64cdedad | 2240 | |
64cdedad EZ |
2241 | #ifdef __MSDOS__ |
2242 | /* Make sure we return to the original directory upon exit, come | |
2243 | what may, since the OS doesn't do that for us. */ | |
2244 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2245 | #endif | |
2246 | ||
371d5dec MS |
2247 | init_cmd_lists (); /* This needs to be done first. */ |
2248 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2249 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2250 | |
24b73f8e PP |
2251 | init_page_info (); |
2252 | ||
9dea9163 | 2253 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2254 | initialize_all_files (); |
9dea9163 | 2255 | |
6c95b8df PA |
2256 | /* This creates the current_program_space. Do this after all the |
2257 | _initialize_foo routines have had a chance to install their | |
2258 | per-sspace data keys. Also do this before | |
2259 | initialize_current_architecture is called, because it accesses | |
2260 | exec_bfd of the current program space. */ | |
2261 | initialize_progspace (); | |
2262 | initialize_inferiors (); | |
64cdedad | 2263 | initialize_current_architecture (); |
371d5dec | 2264 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2265 | |
0ea3f30e DJ |
2266 | initialize_stdin_serial (); |
2267 | ||
6a06d660 PP |
2268 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2269 | to alter it. */ | |
2270 | set_initial_gdb_ttystate (); | |
2271 | ||
362646f5 | 2272 | async_init_signals (); |
64cdedad | 2273 | |
371d5dec MS |
2274 | /* We need a default language for parsing expressions, so simple |
2275 | things like "set width 0" won't fail if no language is explicitly | |
2276 | set in a config file or implicitly set by reading an executable | |
2277 | during startup. */ | |
64cdedad | 2278 | set_language (language_c); |
371d5dec | 2279 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2280 | |
6dddc817 | 2281 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2282 | installed. For example "info pretty-printer" needs the "info" |
2283 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2284 | script initialization here. */ |
2285 | finish_ext_lang_initialization (); | |
7734102d EZ |
2286 | |
2287 | /* Create $_gdb_major and $_gdb_minor convenience variables. */ | |
2288 | init_gdb_version_vars (); | |
64cdedad | 2289 | } |