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" |
0747795c | 38 | #include "common/job-control.h" |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
0747795c | 42 | #include "common/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" |
0747795c | 53 | #include "common/buffer.h" |
3212b858 | 54 | #include "gdb_select.h" |
694c6bf5 | 55 | #include "common/scope-exit.h" |
c906108c | 56 | |
371d5dec | 57 | /* readline include files. */ |
dbda9972 AC |
58 | #include "readline/readline.h" |
59 | #include "readline/history.h" | |
c906108c SS |
60 | |
61 | /* readline defines this. */ | |
62 | #undef savestring | |
63 | ||
64 | #include <sys/types.h> | |
c906108c | 65 | |
c2c6d25f | 66 | #include "event-top.h" |
53ce3c39 | 67 | #include <sys/stat.h> |
c906108c | 68 | #include <ctype.h> |
8b93c638 JM |
69 | #include "ui-out.h" |
70 | #include "cli-out.h" | |
2f9d54cf | 71 | #include "tracepoint.h" |
93d6eb10 | 72 | #include "inf-loop.h" |
c906108c | 73 | |
18206ca3 PP |
74 | #if defined(TUI) |
75 | # include "tui/tui.h" | |
76 | #endif | |
77 | ||
60eb5395 PA |
78 | #ifndef O_NOCTTY |
79 | # define O_NOCTTY 0 | |
80 | #endif | |
81 | ||
ca7b0bbc TT |
82 | extern void initialize_all_files (void); |
83 | ||
95298e72 PM |
84 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
85 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
86 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
87 | ||
371d5dec | 88 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
89 | |
90 | #ifndef DEFAULT_PROMPT | |
91 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
92 | #endif |
93 | ||
79aa2fe8 PA |
94 | /* Generate a function that exports a pointer to a field of the |
95 | current UI. */ | |
96 | ||
97 | #define gen_ret_current_ui_field_ptr(type, name) \ | |
98 | type * \ | |
99 | current_ui_## name ## _ptr (void) \ | |
100 | { \ | |
101 | return ¤t_ui->m_ ## name; \ | |
102 | } | |
103 | ||
104 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout) | |
105 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin) | |
106 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr) | |
107 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog) | |
b6dcde57 | 108 | gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout) |
79aa2fe8 | 109 | |
e655c1a2 | 110 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 111 | |
e655c1a2 | 112 | const char gdbinit[] = GDBINIT; |
c906108c SS |
113 | |
114 | int inhibit_gdbinit = 0; | |
115 | ||
c906108c SS |
116 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
117 | ||
050a2e1d PA |
118 | /* Flag for whether we want to confirm potentially dangerous |
119 | operations. Default is yes. */ | |
120 | ||
e360902b | 121 | int confirm = 1; |
c906108c | 122 | |
920d2a44 | 123 | static void |
e360902b | 124 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
125 | struct cmd_list_element *c, const char *value) |
126 | { | |
3e43a32a MS |
127 | fprintf_filtered (file, _("Whether to confirm potentially " |
128 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
129 | value); |
130 | } | |
c906108c | 131 | |
c906108c SS |
132 | /* Current working directory. */ |
133 | ||
134 | char *current_directory; | |
135 | ||
2669cade | 136 | /* The last command line executed on the console. Used for command |
68bb5386 PW |
137 | repetitions when the user enters an empty line. */ |
138 | ||
139 | static char *saved_command_line; | |
140 | ||
141 | /* If not NULL, the arguments that should be passed if | |
142 | saved_command_line is repeated. */ | |
143 | ||
144 | static const char *repeat_arguments; | |
145 | ||
146 | /* The previous last command line executed on the console. Used for command | |
147 | repetitions when a command wants to relaunch the previously launched | |
148 | command. We need this as when a command is running, saved_command_line | |
149 | already contains the line of the currently executing command. */ | |
150 | ||
151 | char *previous_saved_command_line; | |
152 | ||
153 | /* If not NULL, the arguments that should be passed if the | |
154 | previous_saved_command_line is repeated. */ | |
155 | ||
156 | static const char *previous_repeat_arguments; | |
c906108c SS |
157 | |
158 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 159 | affects things like recording into the command history, commands |
c906108c SS |
160 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
161 | whatever) can issue its own commands and also send along commands | |
162 | from the user, and have the user not notice that the user interface | |
163 | is issuing commands too. */ | |
164 | int server_command; | |
165 | ||
371d5dec | 166 | /* Timeout limit for response from target. */ |
c906108c | 167 | |
7734102d EZ |
168 | /* The default value has been changed many times over the years. It |
169 | was originally 5 seconds. But that was thought to be a long time | |
ce808e91 | 170 | to sit and wait, so it was changed to 2 seconds. That was thought |
7734102d | 171 | to be plenty unless the connection was going through some terminal |
ce808e91 AC |
172 | server or multiplexer or other form of hairy serial connection. |
173 | ||
7734102d | 174 | In mid-1996, remote_timeout was moved from remote.c to top.c and |
ce808e91 AC |
175 | it began being used in other remote-* targets. It appears that the |
176 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 177 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
178 | |
179 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
7734102d | 180 | 20 seconds is far worse. This demonstrates the difficulty of using |
ce808e91 AC |
181 | a single variable for all protocol timeouts. |
182 | ||
7734102d | 183 | As remote.c is used much more than remote-e7000.c, it was changed |
371d5dec | 184 | back to 2 seconds in 1999. */ |
ce808e91 AC |
185 | |
186 | int remote_timeout = 2; | |
c906108c SS |
187 | |
188 | /* Non-zero tells remote* modules to output debugging info. */ | |
189 | ||
190 | int remote_debug = 0; | |
191 | ||
6dd77b81 | 192 | /* Sbrk location on entry to main. Used for statistics only. */ |
6242c6a6 | 193 | #ifdef HAVE_USEFUL_SBRK |
6dd77b81 RH |
194 | char *lim_at_start; |
195 | #endif | |
196 | ||
c906108c SS |
197 | /* Hooks for alternate command interfaces. */ |
198 | ||
371d5dec MS |
199 | /* This hook is called from within gdb's many mini-event loops which |
200 | could steal control from a real user interface's event loop. It | |
201 | returns non-zero if the user is requesting a detach, zero | |
202 | otherwise. */ | |
7a292a7a | 203 | |
98bbd631 | 204 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 205 | |
c906108c | 206 | |
c906108c SS |
207 | /* Called from print_frame_info to list the line we stopped in. */ |
208 | ||
7734102d | 209 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
371d5dec | 210 | int line, |
7734102d | 211 | int stopline, |
371d5dec | 212 | int noerror); |
c906108c SS |
213 | /* Replaces most of query. */ |
214 | ||
9a4105ab | 215 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
216 | |
217 | /* Replaces most of warning. */ | |
218 | ||
9a4105ab | 219 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 220 | |
9a4105ab AC |
221 | /* These three functions support getting lines of text from the user. |
222 | They are used in sequence. First deprecated_readline_begin_hook is | |
223 | called with a text string that might be (for example) a message for | |
224 | the user to type in a sequence of commands to be executed at a | |
225 | breakpoint. If this function calls back to a GUI, it might take | |
226 | this opportunity to pop up a text interaction window with this | |
227 | message. Next, deprecated_readline_hook is called with a prompt | |
228 | that is emitted prior to collecting the user input. It can be | |
229 | called multiple times. Finally, deprecated_readline_end_hook is | |
230 | called to notify the GUI that we are done with the interaction | |
231 | window and it can close it. */ | |
c906108c | 232 | |
a121b7c1 | 233 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 234 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 235 | void (*deprecated_readline_end_hook) (void); |
c906108c | 236 | |
6426a772 | 237 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 238 | to or detached from an already running process. */ |
6426a772 | 239 | |
9a4105ab AC |
240 | void (*deprecated_attach_hook) (void); |
241 | void (*deprecated_detach_hook) (void); | |
6426a772 | 242 | |
371d5dec MS |
243 | /* Called when going to wait for the target. Usually allows the GUI |
244 | to run while waiting for target events. */ | |
c906108c | 245 | |
9a4105ab | 246 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
247 | struct target_waitstatus *status, |
248 | int options); | |
c906108c | 249 | |
371d5dec MS |
250 | /* Used by UI as a wrapper around command execution. May do various |
251 | things like enabling/disabling buttons, etc... */ | |
c906108c | 252 | |
7734102d | 253 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
95a6b0a1 | 254 | const char *cmd, int from_tty); |
c906108c SS |
255 | |
256 | /* Called when the current thread changes. Argument is thread id. */ | |
257 | ||
9a4105ab | 258 | void (*deprecated_context_hook) (int id); |
c906108c | 259 | |
98d9f24e PA |
260 | /* The highest UI number ever assigned. */ |
261 | static int highest_ui_num; | |
262 | ||
263 | /* See top.h. */ | |
264 | ||
895b8f30 TT |
265 | ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_) |
266 | : next (nullptr), | |
267 | num (++highest_ui_num), | |
268 | call_readline (nullptr), | |
269 | input_handler (nullptr), | |
270 | command_editing (0), | |
271 | interp_info (nullptr), | |
272 | async (0), | |
273 | secondary_prompt_depth (0), | |
274 | stdin_stream (instream_), | |
275 | instream (instream_), | |
276 | outstream (outstream_), | |
277 | errstream (errstream_), | |
278 | input_fd (fileno (instream)), | |
279 | input_interactive_p (ISATTY (instream)), | |
280 | prompt_state (PROMPT_NEEDED), | |
281 | m_gdb_stdout (new stdio_file (outstream)), | |
282 | m_gdb_stdin (new stdio_file (instream)), | |
283 | m_gdb_stderr (new stderr_file (errstream)), | |
284 | m_gdb_stdlog (m_gdb_stderr), | |
285 | m_current_uiout (nullptr) | |
98d9f24e | 286 | { |
895b8f30 | 287 | buffer_init (&line_buffer); |
98d9f24e PA |
288 | |
289 | if (ui_list == NULL) | |
895b8f30 | 290 | ui_list = this; |
98d9f24e PA |
291 | else |
292 | { | |
293 | struct ui *last; | |
294 | ||
295 | for (last = ui_list; last->next != NULL; last = last->next) | |
296 | ; | |
895b8f30 | 297 | last->next = this; |
98d9f24e | 298 | } |
07169ff7 PA |
299 | } |
300 | ||
895b8f30 | 301 | ui::~ui () |
07169ff7 PA |
302 | { |
303 | struct ui *ui, *uiprev; | |
304 | ||
305 | uiprev = NULL; | |
306 | ||
307 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
895b8f30 | 308 | if (ui == this) |
07169ff7 PA |
309 | break; |
310 | ||
311 | gdb_assert (ui != NULL); | |
312 | ||
313 | if (uiprev != NULL) | |
895b8f30 | 314 | uiprev->next = next; |
07169ff7 | 315 | else |
895b8f30 | 316 | ui_list = next; |
07169ff7 | 317 | |
895b8f30 TT |
318 | delete m_gdb_stdin; |
319 | delete m_gdb_stdout; | |
320 | delete m_gdb_stderr; | |
8194e927 SM |
321 | } |
322 | ||
60eb5395 PA |
323 | /* Open file named NAME for read/write, making sure not to make it the |
324 | controlling terminal. */ | |
325 | ||
6e7bc05c | 326 | static gdb_file_up |
60eb5395 PA |
327 | open_terminal_stream (const char *name) |
328 | { | |
329 | int fd; | |
330 | ||
6e7bc05c | 331 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
332 | if (fd < 0) |
333 | perror_with_name (_("opening terminal failed")); | |
334 | ||
6e7bc05c | 335 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
336 | } |
337 | ||
338 | /* Implementation of the "new-ui" command. */ | |
339 | ||
340 | static void | |
32faf971 | 341 | new_ui_command (const char *args, int from_tty) |
60eb5395 | 342 | { |
6e7bc05c | 343 | gdb_file_up stream[3]; |
60eb5395 | 344 | int i; |
60eb5395 | 345 | int argc; |
60eb5395 PA |
346 | const char *interpreter_name; |
347 | const char *tty_name; | |
60eb5395 PA |
348 | |
349 | dont_repeat (); | |
350 | ||
773a1edc TT |
351 | gdb_argv argv (args); |
352 | argc = argv.count (); | |
60eb5395 PA |
353 | |
354 | if (argc < 2) | |
65e65158 | 355 | error (_("Usage: new-ui INTERPRETER TTY")); |
60eb5395 PA |
356 | |
357 | interpreter_name = argv[0]; | |
358 | tty_name = argv[1]; | |
359 | ||
4b6749b9 TT |
360 | { |
361 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 362 | |
4b6749b9 TT |
363 | /* Open specified terminal, once for each of |
364 | stdin/stdout/stderr. */ | |
365 | for (i = 0; i < 3; i++) | |
6e7bc05c | 366 | stream[i] = open_terminal_stream (tty_name); |
60eb5395 | 367 | |
895b8f30 TT |
368 | std::unique_ptr<ui> ui |
369 | (new struct ui (stream[0].get (), stream[1].get (), stream[2].get ())); | |
60eb5395 | 370 | |
4b6749b9 | 371 | ui->async = 1; |
60eb5395 | 372 | |
895b8f30 | 373 | current_ui = ui.get (); |
60eb5395 | 374 | |
4b6749b9 | 375 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 376 | |
4b6749b9 | 377 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 378 | |
6e7bc05c TT |
379 | /* Make sure the files are not closed. */ |
380 | stream[0].release (); | |
381 | stream[1].release (); | |
382 | stream[2].release (); | |
383 | ||
895b8f30 | 384 | ui.release (); |
4b6749b9 | 385 | } |
60eb5395 PA |
386 | |
387 | printf_unfiltered ("New UI allocated\n"); | |
388 | } | |
389 | ||
c906108c SS |
390 | /* Handler for SIGHUP. */ |
391 | ||
392 | #ifdef SIGHUP | |
392a587b | 393 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 394 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 395 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
396 | /* static */ void |
397 | quit_cover (void) | |
c906108c | 398 | { |
e360902b PA |
399 | /* Stop asking user for confirmation --- we're exiting. This |
400 | prevents asking the user dumb questions. */ | |
401 | confirm = 0; | |
c5aa993b | 402 | quit_command ((char *) 0, 0); |
c906108c SS |
403 | } |
404 | #endif /* defined SIGHUP */ | |
405 | \f | |
7a9dd1b2 | 406 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 407 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 408 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 409 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 410 | /* static */ int source_line_number; |
c906108c SS |
411 | |
412 | /* Name of the file we are sourcing. */ | |
392a587b | 413 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 414 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 415 | event-top.c into this file, top.c. */ |
6caa91b6 | 416 | /* static */ std::string source_file_name; |
c906108c | 417 | |
c906108c SS |
418 | /* Read commands from STREAM. */ |
419 | void | |
fba45db2 | 420 | read_command_file (FILE *stream) |
c906108c | 421 | { |
f38d3ad1 | 422 | struct ui *ui = current_ui; |
c906108c | 423 | |
3c9ebddd TT |
424 | scoped_restore save_instream |
425 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
426 | |
427 | /* Read commands from `instream' and execute them until end of file | |
428 | or error reading instream. */ | |
429 | ||
f38d3ad1 | 430 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
431 | { |
432 | char *command; | |
433 | ||
434 | /* Get a command-line. This calls the readline package. */ | |
89fbedf3 | 435 | command = command_line_input (NULL, NULL); |
faa4ebe1 PA |
436 | if (command == NULL) |
437 | break; | |
438 | command_handler (command); | |
439 | } | |
c906108c SS |
440 | } |
441 | \f | |
507f3c78 | 442 | void (*pre_init_ui_hook) (void); |
c906108c | 443 | |
e41a3b1a | 444 | #ifdef __MSDOS__ |
70976b65 | 445 | static void |
e41a3b1a AC |
446 | do_chdir_cleanup (void *old_dir) |
447 | { | |
f515a1d6 | 448 | chdir ((const char *) old_dir); |
b8c9b27d | 449 | xfree (old_dir); |
e41a3b1a AC |
450 | } |
451 | #endif | |
452 | ||
54f70bc1 TT |
453 | scoped_value_mark |
454 | prepare_execute_command () | |
4e5d721f | 455 | { |
371d5dec MS |
456 | /* With multiple threads running while the one we're examining is |
457 | stopped, the dcache can get stale without us being able to detect | |
458 | it. For the duration of the command, though, use the dcache to | |
459 | help things like backtrace. */ | |
4e5d721f DE |
460 | if (non_stop) |
461 | target_dcache_invalidate (); | |
028d0ed5 | 462 | |
54f70bc1 | 463 | return scoped_value_mark (); |
4e5d721f DE |
464 | } |
465 | ||
77cce10f PA |
466 | /* Tell the user if the language has changed (except first time) after |
467 | executing a command. */ | |
468 | ||
469 | void | |
470 | check_frame_language_change (void) | |
471 | { | |
472 | static int warned = 0; | |
7ff38b1c | 473 | struct frame_info *frame; |
77cce10f PA |
474 | |
475 | /* First make sure that a new frame has been selected, in case the | |
476 | command or the hooks changed the program state. */ | |
7ff38b1c | 477 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
478 | if (current_language != expected_language) |
479 | { | |
480 | if (language_mode == language_mode_auto && info_verbose) | |
481 | { | |
482 | language_info (1); /* Print what changed. */ | |
483 | } | |
484 | warned = 0; | |
485 | } | |
486 | ||
487 | /* Warn the user if the working language does not match the language | |
488 | of the current frame. Only warn the user if we are actually | |
489 | running the program, i.e. there is a stack. */ | |
490 | /* FIXME: This should be cacheing the frame and only running when | |
491 | the frame changes. */ | |
492 | ||
493 | if (has_stack_frames ()) | |
494 | { | |
495 | enum language flang; | |
496 | ||
7ff38b1c | 497 | flang = get_frame_language (frame); |
77cce10f PA |
498 | if (!warned |
499 | && flang != language_unknown | |
500 | && flang != current_language->la_language) | |
501 | { | |
502 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
503 | warned = 1; | |
504 | } | |
505 | } | |
506 | } | |
507 | ||
98880d46 PA |
508 | /* See top.h. */ |
509 | ||
0b333c5e PA |
510 | void |
511 | wait_sync_command_done (void) | |
512 | { | |
4295e285 | 513 | /* Processing events may change the current UI. */ |
4b6749b9 | 514 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
515 | struct ui *ui = current_ui; |
516 | ||
0b333c5e | 517 | while (gdb_do_one_event () >= 0) |
4295e285 | 518 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
519 | break; |
520 | } | |
521 | ||
522 | /* See top.h. */ | |
523 | ||
98880d46 PA |
524 | void |
525 | maybe_wait_sync_command_done (int was_sync) | |
526 | { | |
527 | /* If the interpreter is in sync mode (we're running a user | |
528 | command's list, running command hooks or similars), and we | |
529 | just ran a synchronous command that started the target, wait | |
530 | for that command to end. */ | |
3b12939d PA |
531 | if (!current_ui->async |
532 | && !was_sync | |
533 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 534 | wait_sync_command_done (); |
98880d46 PA |
535 | } |
536 | ||
85c4be7c TT |
537 | /* See command.h. */ |
538 | ||
539 | void | |
540 | set_repeat_arguments (const char *args) | |
541 | { | |
542 | repeat_arguments = args; | |
543 | } | |
544 | ||
648bf667 | 545 | /* Execute the line P as a command, in the current user context. |
d318976c | 546 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 547 | |
d318976c | 548 | void |
95a6b0a1 | 549 | execute_command (const char *p, int from_tty) |
c906108c | 550 | { |
52f0bd74 | 551 | struct cmd_list_element *c; |
95a6b0a1 TT |
552 | const char *line; |
553 | const char *cmd_start = p; | |
4e5d721f | 554 | |
694c6bf5 | 555 | auto cleanup_if_error = make_scope_exit (bpstat_clear_actions); |
54f70bc1 | 556 | scoped_value_mark cleanup = prepare_execute_command (); |
c906108c | 557 | |
d318976c FN |
558 | /* This can happen when command_line_input hits end of file. */ |
559 | if (p == NULL) | |
5fe41fbf | 560 | { |
694c6bf5 | 561 | cleanup_if_error.release (); |
5fe41fbf TT |
562 | return; |
563 | } | |
c906108c | 564 | |
49d03eab | 565 | target_log_command (p); |
8b93c638 | 566 | |
d318976c FN |
567 | while (*p == ' ' || *p == '\t') |
568 | p++; | |
569 | if (*p) | |
8b93c638 | 570 | { |
6f937416 | 571 | const char *cmd = p; |
95a6b0a1 | 572 | const char *arg; |
3b12939d | 573 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 574 | |
d318976c | 575 | line = p; |
8b93c638 | 576 | |
16026cd7 | 577 | /* If trace-commands is set then this will print this command. */ |
1263a9d5 | 578 | print_command_trace ("%s", p); |
16026cd7 | 579 | |
6f937416 | 580 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
95a6b0a1 | 581 | p = cmd; |
8b93c638 | 582 | |
85c4be7c TT |
583 | scoped_restore save_repeat_args |
584 | = make_scoped_restore (&repeat_arguments, nullptr); | |
95a6b0a1 | 585 | const char *args_pointer = p; |
85c4be7c | 586 | |
d318976c FN |
587 | /* Pass null arg rather than an empty one. */ |
588 | arg = *p ? p : 0; | |
8b93c638 | 589 | |
9f60d481 AC |
590 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
591 | while the is_complete_command(cfunc) test is just plain | |
592 | bogus. They should both be replaced by a test of the form | |
593 | c->strip_trailing_white_space_p. */ | |
594 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
595 | can't be replaced with func. This is because it is the | |
596 | cfunc, and not the func, that has the value that the | |
597 | is_complete_command hack is testing for. */ | |
598 | /* Clear off trailing whitespace, except for set and complete | |
599 | command. */ | |
95a6b0a1 | 600 | std::string without_whitespace; |
d318976c FN |
601 | if (arg |
602 | && c->type != set_cmd | |
bbaca940 | 603 | && !is_complete_command (c)) |
8b93c638 | 604 | { |
95a6b0a1 TT |
605 | const char *old_end = arg + strlen (arg) - 1; |
606 | p = old_end; | |
d318976c FN |
607 | while (p >= arg && (*p == ' ' || *p == '\t')) |
608 | p--; | |
95a6b0a1 TT |
609 | if (p != old_end) |
610 | { | |
611 | without_whitespace = std::string (arg, p + 1); | |
612 | arg = without_whitespace.c_str (); | |
613 | } | |
8b93c638 JM |
614 | } |
615 | ||
371d5dec | 616 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 617 | execute_cmd_pre_hook (c); |
c906108c | 618 | |
1f2bdf09 | 619 | if (c->deprecated_warn_user) |
6f937416 | 620 | deprecated_cmd_warning (line); |
c906108c | 621 | |
7d74f244 | 622 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 623 | if (c->theclass == class_user && c->user_commands) |
d318976c | 624 | execute_user_command (c, arg); |
5b9afe8a YQ |
625 | else if (c->type == set_cmd) |
626 | do_set_command (arg, from_tty, c); | |
627 | else if (c->type == show_cmd) | |
628 | do_show_command (arg, from_tty, c); | |
f436dd25 | 629 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 630 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 631 | else if (deprecated_call_command_hook) |
050a2e1d | 632 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 633 | else |
050a2e1d | 634 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 635 | |
98880d46 | 636 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 637 | |
371d5dec | 638 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 639 | execute_cmd_post_hook (c); |
c906108c | 640 | |
95a6b0a1 | 641 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
642 | { |
643 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
644 | strcpy (saved_command_line + (args_pointer - cmd_start), |
645 | repeat_arguments); | |
85c4be7c | 646 | } |
c906108c SS |
647 | } |
648 | ||
0ca1fc29 JB |
649 | /* Only perform the frame-language-change check if the command |
650 | we just finished executing did not resume the inferior's execution. | |
651 | If it did resume the inferior, we will do that check after | |
652 | the inferior stopped. */ | |
00431a78 | 653 | if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING) |
0ca1fc29 | 654 | check_frame_language_change (); |
028d0ed5 | 655 | |
694c6bf5 | 656 | cleanup_if_error.release (); |
c906108c SS |
657 | } |
658 | ||
b8fd0918 PW |
659 | /* Run execute_command for P and FROM_TTY. Sends its output to FILE, |
660 | do not display it to the screen. BATCH_FLAG will be | |
5da1313b JK |
661 | temporarily set to true. */ |
662 | ||
b8fd0918 PW |
663 | void |
664 | execute_command_to_ui_file (struct ui_file *file, const char *p, int from_tty) | |
5da1313b | 665 | { |
5da1313b JK |
666 | /* GDB_STDOUT should be better already restored during these |
667 | restoration callbacks. */ | |
b95de2b7 | 668 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 669 | |
b7b633e9 | 670 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 671 | |
ca5909c7 | 672 | { |
b8fd0918 | 673 | current_uiout->redirect (file); |
ca5909c7 TT |
674 | ui_out_redirect_pop redirect_popper (current_uiout); |
675 | ||
676 | scoped_restore save_stdout | |
b8fd0918 | 677 | = make_scoped_restore (&gdb_stdout, file); |
ca5909c7 | 678 | scoped_restore save_stderr |
b8fd0918 | 679 | = make_scoped_restore (&gdb_stderr, file); |
ca5909c7 | 680 | scoped_restore save_stdlog |
b8fd0918 | 681 | = make_scoped_restore (&gdb_stdlog, file); |
ca5909c7 | 682 | scoped_restore save_stdtarg |
b8fd0918 | 683 | = make_scoped_restore (&gdb_stdtarg, file); |
ca5909c7 | 684 | scoped_restore save_stdtargerr |
b8fd0918 | 685 | = make_scoped_restore (&gdb_stdtargerr, file); |
ca5909c7 TT |
686 | |
687 | execute_command (p, from_tty); | |
688 | } | |
b8fd0918 PW |
689 | } |
690 | ||
691 | /* Run execute_command for P and FROM_TTY. Capture its output into the | |
692 | returned string, do not display it to the screen. BATCH_FLAG will be | |
693 | temporarily set to true. */ | |
694 | ||
695 | std::string | |
696 | execute_command_to_string (const char *p, int from_tty, | |
697 | bool term_out) | |
698 | { | |
699 | string_file str_file (term_out); | |
5da1313b | 700 | |
b8fd0918 | 701 | execute_command_to_ui_file (&str_file, p, from_tty); |
d7e74731 | 702 | return std::move (str_file.string ()); |
5da1313b JK |
703 | } |
704 | ||
d318976c | 705 | \f |
47a80e90 TT |
706 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
707 | set via prevent_dont_repeat. */ | |
708 | ||
709 | static int suppress_dont_repeat = 0; | |
710 | ||
68bb5386 | 711 | /* See command.h */ |
9e0b60a8 | 712 | |
d318976c FN |
713 | void |
714 | dont_repeat (void) | |
9e0b60a8 | 715 | { |
f38d3ad1 PA |
716 | struct ui *ui = current_ui; |
717 | ||
47a80e90 | 718 | if (suppress_dont_repeat || server_command) |
d318976c | 719 | return; |
9e0b60a8 | 720 | |
d318976c | 721 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
722 | thing read from stdin in line and don't want to delete it. Null |
723 | lines won't repeat here in any case. */ | |
268a799a | 724 | if (ui->instream == ui->stdin_stream) |
68bb5386 PW |
725 | { |
726 | *saved_command_line = 0; | |
727 | repeat_arguments = NULL; | |
728 | } | |
729 | } | |
730 | ||
731 | /* See command.h */ | |
732 | ||
fdbc9870 | 733 | const char * |
68bb5386 PW |
734 | repeat_previous () |
735 | { | |
736 | /* Do not repeat this command, as this command is a repeating command. */ | |
737 | dont_repeat (); | |
738 | ||
739 | /* We cannot free saved_command_line, as this line is being executed, | |
740 | so swap it with previous_saved_command_line. */ | |
741 | std::swap (previous_saved_command_line, saved_command_line); | |
742 | std::swap (previous_repeat_arguments, repeat_arguments); | |
fdbc9870 PA |
743 | |
744 | const char *prev = skip_spaces (get_saved_command_line ()); | |
745 | if (*prev == '\0') | |
746 | error (_("No previous command to relaunch")); | |
747 | return prev; | |
9e0b60a8 | 748 | } |
47a80e90 | 749 | |
68bb5386 | 750 | /* See command.h. */ |
47a80e90 | 751 | |
1ac32117 | 752 | scoped_restore_tmpl<int> |
47a80e90 TT |
753 | prevent_dont_repeat (void) |
754 | { | |
1ac32117 | 755 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
756 | } |
757 | ||
68bb5386 PW |
758 | /* See command.h. */ |
759 | ||
760 | char * | |
761 | get_saved_command_line () | |
762 | { | |
763 | return saved_command_line; | |
764 | } | |
765 | ||
766 | /* See command.h. */ | |
767 | ||
768 | void | |
769 | save_command_line (const char *cmd) | |
770 | { | |
771 | xfree (previous_saved_command_line); | |
772 | previous_saved_command_line = saved_command_line; | |
773 | previous_repeat_arguments = repeat_arguments; | |
774 | saved_command_line = xstrdup (cmd); | |
775 | repeat_arguments = NULL; | |
776 | } | |
777 | ||
d318976c FN |
778 | \f |
779 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 780 | |
7a3bde34 | 781 | It prints PROMPT once at the start. |
d318976c FN |
782 | Action is compatible with "readline", e.g. space for the result is |
783 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 784 | |
d318976c | 785 | A NULL return means end of file. */ |
c5c136ea PA |
786 | |
787 | static char * | |
7a3bde34 | 788 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 789 | { |
7a3bde34 | 790 | struct buffer line_buffer; |
f38d3ad1 | 791 | struct ui *ui = current_ui; |
3212b858 PA |
792 | /* Read from stdin if we are executing a user defined command. This |
793 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 794 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 795 | int fd = fileno (stream); |
9e0b60a8 | 796 | |
7a3bde34 PA |
797 | buffer_init (&line_buffer); |
798 | ||
799 | if (prompt != NULL) | |
9e0b60a8 | 800 | { |
d318976c FN |
801 | /* Don't use a _filtered function here. It causes the assumed |
802 | character position to be off, since the newline we read from | |
803 | the user is not accounted for. */ | |
7a3bde34 | 804 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
805 | gdb_flush (gdb_stdout); |
806 | } | |
807 | ||
9e0b60a8 JM |
808 | while (1) |
809 | { | |
7a3bde34 | 810 | int c; |
3212b858 | 811 | fd_set readfds; |
7a3bde34 | 812 | |
3212b858 PA |
813 | QUIT; |
814 | ||
815 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 816 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
817 | FD_ZERO (&readfds); |
818 | FD_SET (fd, &readfds); | |
f0881b37 | 819 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
820 | { |
821 | if (errno == EINTR) | |
822 | { | |
823 | /* If this was ctrl-c, the QUIT above handles it. */ | |
824 | continue; | |
825 | } | |
826 | perror_with_name (("select")); | |
827 | } | |
828 | ||
829 | c = fgetc (stream); | |
9e0b60a8 | 830 | |
d318976c | 831 | if (c == EOF) |
9e0b60a8 | 832 | { |
7a3bde34 | 833 | if (line_buffer.used_size > 0) |
d318976c FN |
834 | /* The last line does not end with a newline. Return it, and |
835 | if we are called again fgetc will still return EOF and | |
836 | we'll return NULL then. */ | |
9e0b60a8 | 837 | break; |
7a3bde34 | 838 | xfree (buffer_finish (&line_buffer)); |
d318976c | 839 | return NULL; |
9e0b60a8 | 840 | } |
c5aa993b | 841 | |
d318976c | 842 | if (c == '\n') |
9e0b60a8 | 843 | { |
7a3bde34 PA |
844 | if (line_buffer.used_size > 0 |
845 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
846 | line_buffer.used_size--; | |
d318976c | 847 | break; |
9e0b60a8 | 848 | } |
9e0b60a8 | 849 | |
7a3bde34 | 850 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
851 | } |
852 | ||
7a3bde34 PA |
853 | buffer_grow_char (&line_buffer, '\0'); |
854 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
855 | } |
856 | ||
d318976c FN |
857 | /* Variables which control command line editing and history |
858 | substitution. These variables are given default values at the end | |
859 | of this file. */ | |
860 | static int command_editing_p; | |
920d2a44 | 861 | |
d318976c FN |
862 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
863 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 864 | event-top.c into this file, top.c. */ |
920d2a44 | 865 | |
d318976c | 866 | /* static */ int history_expansion_p; |
920d2a44 | 867 | |
d318976c | 868 | static int write_history_p; |
920d2a44 AC |
869 | static void |
870 | show_write_history_p (struct ui_file *file, int from_tty, | |
871 | struct cmd_list_element *c, const char *value) | |
872 | { | |
873 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
874 | value); | |
875 | } | |
876 | ||
840a9a1f | 877 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
878 | command. The value -1 means unlimited, and -2 means undefined. */ |
879 | static int history_size_setshow_var = -2; | |
840a9a1f | 880 | |
920d2a44 AC |
881 | static void |
882 | show_history_size (struct ui_file *file, int from_tty, | |
883 | struct cmd_list_element *c, const char *value) | |
884 | { | |
885 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
886 | value); | |
887 | } | |
888 | ||
fc637f04 PP |
889 | /* Variable associated with the "history remove-duplicates" option. |
890 | The value -1 means unlimited. */ | |
891 | static int history_remove_duplicates = 0; | |
892 | ||
893 | static void | |
894 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
895 | struct cmd_list_element *c, const char *value) | |
896 | { | |
897 | fprintf_filtered (file, | |
898 | _("The number of history entries to look back at for " | |
899 | "duplicates is %s.\n"), | |
900 | value); | |
901 | } | |
902 | ||
d318976c | 903 | static char *history_filename; |
920d2a44 AC |
904 | static void |
905 | show_history_filename (struct ui_file *file, int from_tty, | |
906 | struct cmd_list_element *c, const char *value) | |
907 | { | |
3e43a32a MS |
908 | fprintf_filtered (file, _("The filename in which to record " |
909 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
910 | value); |
911 | } | |
9e0b60a8 | 912 | |
b4f5539f | 913 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 914 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
915 | a single gdb invocation. At the ordinary top-level prompt we might |
916 | be using the async readline. That means we can't use | |
917 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
918 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
919 | `define'), gdb wants a synchronous response. |
920 | ||
921 | We used to call readline() directly, running it in synchronous | |
922 | mode. But mixing modes this way is not supported, and as of | |
923 | readline 5.x it no longer works; the arrow keys come unbound during | |
924 | the synchronous call. So we make a nested call into the event | |
925 | loop. That's what gdb_readline_wrapper is for. */ | |
926 | ||
927 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
928 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
929 | the user types Control-D for EOF. */ | |
930 | static int gdb_readline_wrapper_done; | |
931 | ||
932 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
933 | is seen. */ | |
934 | static char *gdb_readline_wrapper_result; | |
935 | ||
936 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
937 | to be called after the newline is processed (which will redisplay | |
938 | the prompt). But in gdb_readline_wrapper we will not get a new | |
939 | prompt until the next call, or until we return to the event loop. | |
940 | So we disable this hook around the newline and restore it before we | |
941 | return. */ | |
942 | static void (*saved_after_char_processing_hook) (void); | |
943 | ||
948578a9 | 944 | |
948578a9 PP |
945 | /* See top.h. */ |
946 | ||
947 | int | |
dbf30ca3 | 948 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 949 | { |
dbf30ca3 | 950 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
951 | } |
952 | ||
953 | ||
2e03ee74 DJ |
954 | /* This function is called when readline has seen a complete line of |
955 | text. */ | |
956 | ||
957 | static void | |
95bc9f0b | 958 | gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line) |
2e03ee74 DJ |
959 | { |
960 | gdb_assert (!gdb_readline_wrapper_done); | |
95bc9f0b | 961 | gdb_readline_wrapper_result = line.release (); |
2e03ee74 DJ |
962 | gdb_readline_wrapper_done = 1; |
963 | ||
964 | /* Prevent operate-and-get-next from acting too early. */ | |
965 | saved_after_char_processing_hook = after_char_processing_hook; | |
966 | after_char_processing_hook = NULL; | |
1b05479a DJ |
967 | |
968 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 969 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
970 | reinstall the callback handler, which puts the terminal in raw |
971 | mode (or in readline lingo, in prepped state), when we're next | |
972 | ready to process user input, either in display_gdb_prompt, or if | |
973 | we're handling an asynchronous target event and running in the | |
974 | background, just before returning to the event loop to process | |
975 | further input (or more target events). */ | |
3c216924 | 976 | if (current_ui->command_editing) |
d3d4baed | 977 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
978 | } |
979 | ||
1dbeed45 | 980 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 981 | { |
1dbeed45 TT |
982 | public: |
983 | gdb_readline_wrapper_cleanup () | |
984 | : m_handler_orig (current_ui->input_handler), | |
985 | m_already_prompted_orig (current_ui->command_editing | |
986 | ? rl_already_prompted : 0), | |
987 | m_target_is_async_orig (target_is_async_p ()), | |
988 | m_save_ui (¤t_ui) | |
989 | { | |
990 | current_ui->input_handler = gdb_readline_wrapper_line; | |
991 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 992 | |
1dbeed45 TT |
993 | if (m_target_is_async_orig) |
994 | target_async (0); | |
995 | } | |
2e03ee74 | 996 | |
1dbeed45 TT |
997 | ~gdb_readline_wrapper_cleanup () |
998 | { | |
999 | struct ui *ui = current_ui; | |
0017922d | 1000 | |
1dbeed45 TT |
1001 | if (ui->command_editing) |
1002 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 1003 | |
1dbeed45 TT |
1004 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
1005 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 1006 | |
1dbeed45 TT |
1007 | /* Don't restore our input handler in readline yet. That would make |
1008 | readline prep the terminal (putting it in raw mode), while the | |
1009 | line we just read may trigger execution of a command that expects | |
1010 | the terminal in the default cooked/canonical mode, such as e.g., | |
1011 | running Python's interactive online help utility. See | |
1012 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 1013 | |
1dbeed45 TT |
1014 | gdb_readline_wrapper_result = NULL; |
1015 | gdb_readline_wrapper_done = 0; | |
1016 | ui->secondary_prompt_depth--; | |
1017 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 1018 | |
1dbeed45 TT |
1019 | after_char_processing_hook = saved_after_char_processing_hook; |
1020 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 1021 | |
1dbeed45 TT |
1022 | if (m_target_is_async_orig) |
1023 | target_async (1); | |
1024 | } | |
2e03ee74 | 1025 | |
1dbeed45 | 1026 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 1027 | |
1dbeed45 | 1028 | private: |
2e03ee74 | 1029 | |
95bc9f0b | 1030 | void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&); |
1dbeed45 | 1031 | int m_already_prompted_orig; |
93d6eb10 | 1032 | |
1dbeed45 TT |
1033 | /* Whether the target was async. */ |
1034 | int m_target_is_async_orig; | |
2e03ee74 | 1035 | |
4295e285 | 1036 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
1037 | scoped_restore_tmpl<struct ui *> m_save_ui; |
1038 | }; | |
1039 | ||
1040 | char * | |
1041 | gdb_readline_wrapper (const char *prompt) | |
1042 | { | |
1043 | struct ui *ui = current_ui; | |
4295e285 | 1044 | |
1dbeed45 | 1045 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 1046 | |
6e5d74e7 PA |
1047 | /* Display our prompt and prevent double prompt display. Don't pass |
1048 | down a NULL prompt, since that has special meaning for | |
1049 | display_gdb_prompt -- it indicates a request to print the primary | |
1050 | prompt, while we want a secondary prompt here. */ | |
1051 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1052 | if (ui->command_editing) |
1053 | rl_already_prompted = 1; | |
2e03ee74 | 1054 | |
362646f5 | 1055 | if (after_char_processing_hook) |
2e03ee74 DJ |
1056 | (*after_char_processing_hook) (); |
1057 | gdb_assert (after_char_processing_hook == NULL); | |
1058 | ||
e0dd0826 | 1059 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1060 | if (gdb_readline_wrapper_done) |
1061 | break; | |
b4f5539f | 1062 | |
1dbeed45 | 1063 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1064 | } |
1065 | ||
9e0b60a8 | 1066 | \f |
467d8519 TT |
1067 | /* The current saved history number from operate-and-get-next. |
1068 | This is -1 if not valid. */ | |
1069 | static int operate_saved_history = -1; | |
1070 | ||
1071 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1072 | do its work. */ | |
b9362cc7 | 1073 | static void |
5ae5f592 | 1074 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1075 | { |
1076 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1077 | |
467d8519 TT |
1078 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1079 | rl_get_previous_history (delta, 0); | |
1080 | operate_saved_history = -1; | |
1081 | ||
1082 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1083 | rl_redisplay (); |
467d8519 TT |
1084 | |
1085 | after_char_processing_hook = NULL; | |
1086 | rl_pre_input_hook = NULL; | |
1087 | } | |
1088 | ||
1089 | /* This is a gdb-local readline command handler. It accepts the | |
1090 | current command line (like RET does) and, if this command was taken | |
1091 | from the history, arranges for the next command in the history to | |
1092 | appear on the command line when the prompt returns. | |
1093 | We ignore the arguments. */ | |
1094 | static int | |
1095 | gdb_rl_operate_and_get_next (int count, int key) | |
1096 | { | |
b5686e99 MK |
1097 | int where; |
1098 | ||
362646f5 AC |
1099 | /* Use the async hook. */ |
1100 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1101 | |
b5686e99 MK |
1102 | /* Find the current line, and find the next line to use. */ |
1103 | where = where_history(); | |
1104 | ||
1fb2e2b5 PA |
1105 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1106 | || (where >= history_length - 1)) | |
b5686e99 MK |
1107 | operate_saved_history = where; |
1108 | else | |
1109 | operate_saved_history = where + 1; | |
1110 | ||
467d8519 TT |
1111 | return rl_newline (1, key); |
1112 | } | |
08b13bdd PP |
1113 | |
1114 | /* Number of user commands executed during this session. */ | |
1115 | ||
1116 | static int command_count = 0; | |
1117 | ||
1118 | /* Add the user command COMMAND to the input history list. */ | |
1119 | ||
1120 | void | |
1121 | gdb_add_history (const char *command) | |
1122 | { | |
08b13bdd | 1123 | command_count++; |
fc637f04 PP |
1124 | |
1125 | if (history_remove_duplicates != 0) | |
1126 | { | |
1127 | int lookbehind; | |
1128 | int lookbehind_threshold; | |
1129 | ||
1130 | /* The lookbehind threshold for finding a duplicate history entry is | |
1131 | bounded by command_count because we can't meaningfully delete | |
1132 | history entries that are already stored in the history file since | |
1133 | the history file is appended to. */ | |
1134 | if (history_remove_duplicates == -1 | |
1135 | || history_remove_duplicates > command_count) | |
1136 | lookbehind_threshold = command_count; | |
1137 | else | |
1138 | lookbehind_threshold = history_remove_duplicates; | |
1139 | ||
1140 | using_history (); | |
1141 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1142 | { | |
1143 | HIST_ENTRY *temp = previous_history (); | |
1144 | ||
1145 | if (temp == NULL) | |
1146 | break; | |
1147 | ||
1148 | if (strcmp (temp->line, command) == 0) | |
1149 | { | |
1150 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1151 | command_count--; | |
1152 | free_history_entry (prev); | |
1153 | break; | |
1154 | } | |
1155 | } | |
1156 | using_history (); | |
1157 | } | |
1158 | ||
1159 | add_history (command); | |
08b13bdd PP |
1160 | } |
1161 | ||
1162 | /* Safely append new history entries to the history file in a corruption-free | |
1163 | way using an intermediate local history file. */ | |
1164 | ||
1165 | static void | |
1166 | gdb_safe_append_history (void) | |
1167 | { | |
1168 | int ret, saved_errno; | |
08b13bdd | 1169 | |
8cff8730 TT |
1170 | std::string local_history_filename |
1171 | = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ()); | |
08b13bdd | 1172 | |
8cff8730 | 1173 | ret = rename (history_filename, local_history_filename.c_str ()); |
08b13bdd PP |
1174 | saved_errno = errno; |
1175 | if (ret < 0 && saved_errno != ENOENT) | |
1176 | { | |
1177 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1178 | history_filename, local_history_filename.c_str (), |
08b13bdd PP |
1179 | safe_strerror (saved_errno)); |
1180 | } | |
1181 | else | |
1182 | { | |
1183 | if (ret < 0) | |
1184 | { | |
1185 | /* If the rename failed with ENOENT then either the global history | |
1186 | file never existed in the first place or another GDB process is | |
1187 | currently appending to it (and has thus temporarily renamed it). | |
1188 | Since we can't distinguish between these two cases, we have to | |
1189 | conservatively assume the first case and therefore must write out | |
1190 | (not append) our known history to our local history file and try | |
1191 | to move it back anyway. Otherwise a global history file would | |
1192 | never get created! */ | |
1193 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1194 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1195 | } |
1196 | else | |
1197 | { | |
8cff8730 | 1198 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1199 | if (history_is_stifled ()) |
8cff8730 TT |
1200 | history_truncate_file (local_history_filename.c_str (), |
1201 | history_max_entries); | |
08b13bdd PP |
1202 | } |
1203 | ||
8cff8730 | 1204 | ret = rename (local_history_filename.c_str (), history_filename); |
08b13bdd PP |
1205 | saved_errno = errno; |
1206 | if (ret < 0 && saved_errno != EEXIST) | |
1207 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1208 | local_history_filename.c_str (), history_filename, |
08b13bdd PP |
1209 | safe_strerror (saved_errno)); |
1210 | } | |
08b13bdd PP |
1211 | } |
1212 | ||
b69d38af PA |
1213 | /* Read one line from the command input stream `instream' into a local |
1214 | static buffer. The buffer is made bigger as necessary. Returns | |
1215 | the address of the start of the line. | |
9e0b60a8 | 1216 | |
d318976c | 1217 | NULL is returned for end of file. |
9e0b60a8 | 1218 | |
b69d38af PA |
1219 | This routine either uses fancy command line editing or simple input |
1220 | as the user has requested. */ | |
10689f25 | 1221 | |
d318976c | 1222 | char * |
89fbedf3 | 1223 | command_line_input (const char *prompt_arg, const char *annotation_suffix) |
9e0b60a8 | 1224 | { |
b69d38af PA |
1225 | static struct buffer cmd_line_buffer; |
1226 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1227 | struct ui *ui = current_ui; |
38bcc89d | 1228 | const char *prompt = prompt_arg; |
b69d38af | 1229 | char *cmd; |
268a799a | 1230 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1231 | |
1232 | /* The annotation suffix must be non-NULL. */ | |
1233 | if (annotation_suffix == NULL) | |
1234 | annotation_suffix = ""; | |
9e0b60a8 | 1235 | |
268a799a | 1236 | if (from_tty && annotation_level > 1) |
d318976c | 1237 | { |
38bcc89d SM |
1238 | char *local_prompt; |
1239 | ||
224c3ddb SM |
1240 | local_prompt |
1241 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1242 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1243 | if (prompt == NULL) |
d318976c FN |
1244 | local_prompt[0] = '\0'; |
1245 | else | |
38bcc89d | 1246 | strcpy (local_prompt, prompt); |
d318976c FN |
1247 | strcat (local_prompt, "\n\032\032"); |
1248 | strcat (local_prompt, annotation_suffix); | |
1249 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1250 | |
1251 | prompt = local_prompt; | |
d318976c | 1252 | } |
9e0b60a8 | 1253 | |
b69d38af | 1254 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1255 | { |
b69d38af PA |
1256 | buffer_init (&cmd_line_buffer); |
1257 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1258 | } |
9e0b60a8 | 1259 | |
b69d38af PA |
1260 | /* Starting a new command line. */ |
1261 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1262 | |
6aa899ce | 1263 | #ifdef SIGTSTP |
d318976c | 1264 | if (job_control) |
6aa899ce | 1265 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1266 | #endif |
1267 | ||
1268 | while (1) | |
9e0b60a8 | 1269 | { |
2139e8dc | 1270 | gdb::unique_xmalloc_ptr<char> rl; |
b69d38af | 1271 | |
371d5dec MS |
1272 | /* Make sure that all output has been output. Some machines may |
1273 | let you get away with leaving out some of the gdb_flush, but | |
1274 | not all. */ | |
d318976c FN |
1275 | wrap_here (""); |
1276 | gdb_flush (gdb_stdout); | |
1277 | gdb_flush (gdb_stderr); | |
1278 | ||
6caa91b6 | 1279 | if (!source_file_name.empty ()) |
637537d0 | 1280 | ++source_line_number; |
d318976c | 1281 | |
268a799a | 1282 | if (from_tty && annotation_level > 1) |
d318976c | 1283 | { |
306d9ac5 DC |
1284 | puts_unfiltered ("\n\032\032pre-"); |
1285 | puts_unfiltered (annotation_suffix); | |
1286 | puts_unfiltered ("\n"); | |
d318976c FN |
1287 | } |
1288 | ||
1289 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1290 | if (deprecated_readline_hook |
1291 | && from_tty | |
1292 | && input_interactive_p (current_ui)) | |
d318976c | 1293 | { |
2139e8dc | 1294 | rl.reset ((*deprecated_readline_hook) (prompt)); |
d318976c | 1295 | } |
268a799a PA |
1296 | else if (command_editing_p |
1297 | && from_tty | |
1298 | && input_interactive_p (current_ui)) | |
d318976c | 1299 | { |
2139e8dc | 1300 | rl.reset (gdb_readline_wrapper (prompt)); |
d318976c | 1301 | } |
9e0b60a8 | 1302 | else |
d318976c | 1303 | { |
2139e8dc | 1304 | rl.reset (gdb_readline_no_editing (prompt)); |
d318976c | 1305 | } |
9e0b60a8 | 1306 | |
2139e8dc | 1307 | cmd = handle_line_of_input (&cmd_line_buffer, rl.get (), |
89fbedf3 | 1308 | 0, annotation_suffix); |
b69d38af | 1309 | if (cmd == (char *) EOF) |
d318976c | 1310 | { |
b69d38af | 1311 | cmd = NULL; |
d318976c | 1312 | break; |
9e0b60a8 | 1313 | } |
b69d38af | 1314 | if (cmd != NULL) |
d318976c | 1315 | break; |
9e0b60a8 | 1316 | |
6e5d74e7 PA |
1317 | /* Got partial input. I.e., got a line that ends with a |
1318 | continuation character (backslash). Suppress printing the | |
1319 | prompt again. */ | |
38bcc89d | 1320 | prompt = NULL; |
d318976c | 1321 | } |
9e0b60a8 | 1322 | |
6aa899ce | 1323 | #ifdef SIGTSTP |
d318976c | 1324 | if (job_control) |
6aa899ce | 1325 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1326 | #endif |
9e0b60a8 | 1327 | |
b69d38af | 1328 | return cmd; |
9e0b60a8 JM |
1329 | } |
1330 | \f | |
c61b06a1 | 1331 | /* See top.h. */ |
9e0b60a8 | 1332 | void |
c61b06a1 | 1333 | print_gdb_version (struct ui_file *stream, bool interactive) |
9e0b60a8 JM |
1334 | { |
1335 | /* From GNU coding standards, first line is meant to be easy for a | |
1336 | program to parse, and is just canonical program name and version | |
371d5dec | 1337 | number, which starts after last space. */ |
9e0b60a8 | 1338 | |
d47032b7 TT |
1339 | ui_file_style style; |
1340 | if (interactive) | |
1341 | { | |
1342 | ui_file_style nstyle = { ui_file_style::MAGENTA, ui_file_style::NONE, | |
1343 | ui_file_style::BOLD }; | |
1344 | style = nstyle; | |
1345 | } | |
1346 | fprintf_styled (stream, style, "GNU gdb %s%s\n", PKGVERSION, version); | |
9e0b60a8 | 1347 | |
371d5dec | 1348 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1349 | |
3e43a32a | 1350 | fprintf_filtered (stream, |
66d91b39 | 1351 | "Copyright (C) 2019 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1352 | |
1353 | /* Following the copyright is a brief statement that the program is | |
1354 | free software, that users are free to copy and change it on | |
1355 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1356 | there is no warranty. */ |
9e0b60a8 JM |
1357 | |
1358 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1359 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1360 | \nThis is free software: you are free to change and redistribute it.\n\ | |
c61b06a1 TT |
1361 | There is NO WARRANTY, to the extent permitted by law."); |
1362 | ||
1363 | if (!interactive) | |
1364 | return; | |
1365 | ||
1366 | fprintf_filtered (stream, ("\nType \"show copying\" and " | |
1367 | "\"show warranty\" for details.\n")); | |
9e0b60a8 | 1368 | |
371d5dec | 1369 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1370 | |
1371 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1372 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1373 | { |
3e43a32a MS |
1374 | fprintf_filtered (stream, "--host=%s --target=%s", |
1375 | host_name, target_name); | |
9e0b60a8 JM |
1376 | } |
1377 | else | |
1378 | { | |
1379 | fprintf_filtered (stream, "%s", host_name); | |
1380 | } | |
c61b06a1 TT |
1381 | fprintf_filtered (stream, "\".\n"); |
1382 | ||
1383 | fprintf_filtered (stream, _("Type \"show configuration\" " | |
1384 | "for configuration details.\n")); | |
c16158bc JM |
1385 | |
1386 | if (REPORT_BUGS_TO[0]) | |
1387 | { | |
6eaaf48b | 1388 | fprintf_filtered (stream, |
c61b06a1 | 1389 | _("For bug reporting instructions, please see:\n")); |
1cf55f60 | 1390 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1391 | } |
1cf55f60 PM |
1392 | fprintf_filtered (stream, |
1393 | _("Find the GDB manual and other documentation \ | |
c61b06a1 TT |
1394 | resources online at:\n <http://www.gnu.org/software/gdb/documentation/>.")); |
1395 | fprintf_filtered (stream, "\n\n"); | |
1cf55f60 | 1396 | fprintf_filtered (stream, _("For help, type \"help\".\n")); |
7734102d EZ |
1397 | fprintf_filtered (stream, |
1398 | _("Type \"apropos word\" to search for commands \ | |
1399 | related to \"word\".")); | |
9e0b60a8 | 1400 | } |
6eaaf48b EZ |
1401 | |
1402 | /* Print the details of GDB build-time configuration. */ | |
1403 | void | |
1404 | print_gdb_configuration (struct ui_file *stream) | |
1405 | { | |
1406 | fprintf_filtered (stream, _("\ | |
1407 | This GDB was configured as follows:\n\ | |
1408 | configure --host=%s --target=%s\n\ | |
1409 | "), host_name, target_name); | |
1410 | fprintf_filtered (stream, _("\ | |
1411 | --with-auto-load-dir=%s\n\ | |
1412 | --with-auto-load-safe-path=%s\n\ | |
1413 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1414 | #if HAVE_LIBEXPAT | |
1415 | fprintf_filtered (stream, _("\ | |
1416 | --with-expat\n\ | |
1417 | ")); | |
1418 | #else | |
1419 | fprintf_filtered (stream, _("\ | |
1420 | --without-expat\n\ | |
1421 | ")); | |
1422 | #endif | |
1423 | if (GDB_DATADIR[0]) | |
1424 | fprintf_filtered (stream, _("\ | |
1425 | --with-gdb-datadir=%s%s\n\ | |
1426 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1427 | #ifdef ICONV_BIN | |
1428 | fprintf_filtered (stream, _("\ | |
1429 | --with-iconv-bin=%s%s\n\ | |
1430 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1431 | #endif | |
1432 | if (JIT_READER_DIR[0]) | |
1433 | fprintf_filtered (stream, _("\ | |
1434 | --with-jit-reader-dir=%s%s\n\ | |
1435 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1436 | #if HAVE_LIBUNWIND_IA64_H | |
1437 | fprintf_filtered (stream, _("\ | |
1438 | --with-libunwind-ia64\n\ | |
1439 | ")); | |
1440 | #else | |
1441 | fprintf_filtered (stream, _("\ | |
1442 | --without-libunwind-ia64\n\ | |
1443 | ")); | |
1444 | #endif | |
1445 | #if HAVE_LIBLZMA | |
1446 | fprintf_filtered (stream, _("\ | |
1447 | --with-lzma\n\ | |
1448 | ")); | |
1449 | #else | |
1450 | fprintf_filtered (stream, _("\ | |
1451 | --without-lzma\n\ | |
1452 | ")); | |
1453 | #endif | |
9bd8e0b0 EZ |
1454 | #if HAVE_LIBBABELTRACE |
1455 | fprintf_filtered (stream, _("\ | |
1456 | --with-babeltrace\n\ | |
1457 | ")); | |
1458 | #else | |
1459 | fprintf_filtered (stream, _("\ | |
1460 | --without-babeltrace\n\ | |
1461 | ")); | |
1462 | #endif | |
1463 | #if HAVE_LIBIPT | |
1464 | fprintf_filtered (stream, _("\ | |
1465 | --with-intel-pt\n\ | |
1466 | ")); | |
1467 | #else | |
1468 | fprintf_filtered (stream, _("\ | |
1469 | --without-intel-pt\n\ | |
1470 | ")); | |
1471 | #endif | |
1472 | #if HAVE_LIBMCHECK | |
1473 | fprintf_filtered (stream, _("\ | |
1474 | --enable-libmcheck\n\ | |
1475 | ")); | |
1476 | #else | |
1477 | fprintf_filtered (stream, _("\ | |
1478 | --disable-libmcheck\n\ | |
1479 | ")); | |
1480 | #endif | |
1481 | #if HAVE_LIBMPFR | |
1482 | fprintf_filtered (stream, _("\ | |
1483 | --with-mpfr\n\ | |
1484 | ")); | |
1485 | #else | |
1486 | fprintf_filtered (stream, _("\ | |
1487 | --without-mpfr\n\ | |
1488 | ")); | |
1489 | #endif | |
6eaaf48b EZ |
1490 | #ifdef WITH_PYTHON_PATH |
1491 | fprintf_filtered (stream, _("\ | |
1492 | --with-python=%s%s\n\ | |
1493 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
50c7c5b8 ДП |
1494 | #else |
1495 | fprintf_filtered (stream, _("\ | |
1496 | --without-python\n\ | |
1497 | ")); | |
6eaaf48b | 1498 | #endif |
97d66cc6 EZ |
1499 | #if HAVE_GUILE |
1500 | fprintf_filtered (stream, _("\ | |
1501 | --with-guile\n\ | |
1502 | ")); | |
1503 | #else | |
1504 | fprintf_filtered (stream, _("\ | |
1505 | --without-guile\n\ | |
1506 | ")); | |
1507 | #endif | |
189b8c2e ST |
1508 | #if HAVE_SOURCE_HIGHLIGHT |
1509 | fprintf_filtered (stream, _("\ | |
1510 | --enable-source-highlight\n\ | |
1511 | ")); | |
1512 | #else | |
1513 | fprintf_filtered (stream, _("\ | |
1514 | --disable-source-highlight\n\ | |
1515 | ")); | |
1516 | #endif | |
6eaaf48b EZ |
1517 | #ifdef RELOC_SRCDIR |
1518 | fprintf_filtered (stream, _("\ | |
1519 | --with-relocated-sources=%s\n\ | |
1520 | "), RELOC_SRCDIR); | |
1521 | #endif | |
1522 | if (DEBUGDIR[0]) | |
1523 | fprintf_filtered (stream, _("\ | |
1524 | --with-separate-debug-dir=%s%s\n\ | |
1525 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1526 | if (TARGET_SYSTEM_ROOT[0]) | |
1527 | fprintf_filtered (stream, _("\ | |
1528 | --with-sysroot=%s%s\n\ | |
1529 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1530 | if (SYSTEM_GDBINIT[0]) | |
1531 | fprintf_filtered (stream, _("\ | |
1532 | --with-system-gdbinit=%s%s\n\ | |
1533 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
48d1d6f5 EZ |
1534 | /* We assume "relocatable" will be printed at least once, thus we always |
1535 | print this text. It's a reasonably safe assumption for now. */ | |
1536 | fprintf_filtered (stream, _("\n\ | |
1537 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1538 | tree, and GDB will still find it.)\n\ | |
1539 | ")); | |
6eaaf48b | 1540 | } |
9e0b60a8 | 1541 | \f |
95298e72 | 1542 | |
ab821bc6 PA |
1543 | /* The current top level prompt, settable with "set prompt", and/or |
1544 | with the python `gdb.prompt_hook' hook. */ | |
1545 | static char *top_prompt; | |
9e0b60a8 | 1546 | |
ab821bc6 | 1547 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1548 | |
1549 | char * | |
ab821bc6 | 1550 | get_prompt (void) |
95298e72 | 1551 | { |
ab821bc6 | 1552 | return top_prompt; |
95298e72 PM |
1553 | } |
1554 | ||
ab821bc6 | 1555 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1556 | |
1557 | void | |
ab821bc6 | 1558 | set_prompt (const char *s) |
95298e72 | 1559 | { |
ab821bc6 | 1560 | char *p = xstrdup (s); |
95298e72 | 1561 | |
ab821bc6 PA |
1562 | xfree (top_prompt); |
1563 | top_prompt = p; | |
9e0b60a8 | 1564 | } |
9e0b60a8 | 1565 | \f |
c5aa993b | 1566 | |
b0abbc58 | 1567 | struct qt_args |
9e0b60a8 | 1568 | { |
b0abbc58 JJ |
1569 | int from_tty; |
1570 | }; | |
9e0b60a8 | 1571 | |
54a012c9 PA |
1572 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1573 | inferior, depending on how we originally gained control of it. */ | |
1574 | ||
1575 | static int | |
1576 | kill_or_detach (struct inferior *inf, void *args) | |
1577 | { | |
19ba03f4 | 1578 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 | 1579 | |
6c95b8df PA |
1580 | if (inf->pid == 0) |
1581 | return 0; | |
1582 | ||
00431a78 | 1583 | thread_info *thread = any_thread_of_inferior (inf); |
b8fa0bfa | 1584 | if (thread != NULL) |
9e0b60a8 | 1585 | { |
00431a78 | 1586 | switch_to_thread (thread); |
c35b1492 PA |
1587 | |
1588 | /* Leave core files alone. */ | |
1589 | if (target_has_execution) | |
1590 | { | |
1591 | if (inf->attach_flag) | |
6e1e1966 | 1592 | target_detach (inf, qt->from_tty); |
c35b1492 PA |
1593 | else |
1594 | target_kill (); | |
1595 | } | |
9e0b60a8 JM |
1596 | } |
1597 | ||
54a012c9 PA |
1598 | return 0; |
1599 | } | |
1600 | ||
b8fa0bfa PA |
1601 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1602 | will do to each inferior on a "quit". ARG points to a struct | |
1603 | ui_out where output is to be collected. */ | |
1604 | ||
1605 | static int | |
1606 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1607 | { | |
19ba03f4 | 1608 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1609 | |
6c95b8df PA |
1610 | if (inf->pid == 0) |
1611 | return 0; | |
1612 | ||
b8fa0bfa PA |
1613 | if (inf->attach_flag) |
1614 | fprintf_filtered (stb, | |
1615 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
a068643d | 1616 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1617 | else |
1618 | fprintf_filtered (stb, | |
1619 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
a068643d | 1620 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1621 | |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | /* If necessary, make the user confirm that we should quit. Return | |
1626 | non-zero if we should quit, zero if we shouldn't. */ | |
1627 | ||
1628 | int | |
1629 | quit_confirm (void) | |
1630 | { | |
b8fa0bfa PA |
1631 | /* Don't even ask if we're only debugging a core file inferior. */ |
1632 | if (!have_live_inferiors ()) | |
1633 | return 1; | |
1634 | ||
1635 | /* Build the query string as a single string. */ | |
d7e74731 | 1636 | string_file stb; |
b8fa0bfa | 1637 | |
d7e74731 PA |
1638 | stb.puts (_("A debugging session is active.\n\n")); |
1639 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1640 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1641 | |
d7e74731 | 1642 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1643 | } |
1644 | ||
18206ca3 PP |
1645 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1646 | terminal so that we leave the terminal in the state we acquired it. */ | |
1647 | ||
1648 | static void | |
1649 | undo_terminal_modifications_before_exit (void) | |
1650 | { | |
3c216924 PA |
1651 | struct ui *saved_top_level = current_ui; |
1652 | ||
223ffa71 | 1653 | target_terminal::ours (); |
3c216924 PA |
1654 | |
1655 | current_ui = main_ui; | |
1656 | ||
18206ca3 PP |
1657 | #if defined(TUI) |
1658 | tui_disable (); | |
1659 | #endif | |
3c216924 PA |
1660 | gdb_disable_readline (); |
1661 | ||
1662 | current_ui = saved_top_level; | |
18206ca3 PP |
1663 | } |
1664 | ||
1665 | ||
b0abbc58 JJ |
1666 | /* Quit without asking for confirmation. */ |
1667 | ||
1668 | void | |
36cf1806 | 1669 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1670 | { |
1671 | int exit_code = 0; | |
365c70b1 | 1672 | struct qt_args qt; |
b0abbc58 | 1673 | |
18206ca3 PP |
1674 | undo_terminal_modifications_before_exit (); |
1675 | ||
7734102d | 1676 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1677 | value of that expression. */ |
36cf1806 TT |
1678 | if (exit_arg) |
1679 | exit_code = *exit_arg; | |
4b0ad762 AS |
1680 | else if (return_child_result) |
1681 | exit_code = return_child_result_value; | |
b0abbc58 | 1682 | |
365c70b1 JJ |
1683 | qt.from_tty = from_tty; |
1684 | ||
b0abbc58 | 1685 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1686 | |
1687 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
a70b8144 | 1688 | try |
2f9d54cf PA |
1689 | { |
1690 | disconnect_tracing (); | |
1691 | iterate_over_inferiors (kill_or_detach, &qt); | |
1692 | } | |
230d2906 | 1693 | catch (const gdb_exception &ex) |
492d29ea PA |
1694 | { |
1695 | exception_print (gdb_stderr, ex); | |
1696 | } | |
2f9d54cf PA |
1697 | |
1698 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1699 | them all out. */ | |
a70b8144 | 1700 | try |
2f9d54cf PA |
1701 | { |
1702 | pop_all_targets (); | |
1703 | } | |
230d2906 | 1704 | catch (const gdb_exception &ex) |
492d29ea PA |
1705 | { |
1706 | exception_print (gdb_stderr, ex); | |
1707 | } | |
2f9d54cf PA |
1708 | |
1709 | /* Save the history information if it is appropriate to do so. */ | |
a70b8144 | 1710 | try |
2f9d54cf | 1711 | { |
268a799a PA |
1712 | if (write_history_p && history_filename) |
1713 | { | |
1714 | struct ui *ui; | |
1715 | int save = 0; | |
1716 | ||
1717 | /* History is currently shared between all UIs. If there's | |
1718 | any UI with a terminal, save history. */ | |
1719 | ALL_UIS (ui) | |
1720 | { | |
1721 | if (input_interactive_p (ui)) | |
1722 | { | |
1723 | save = 1; | |
1724 | break; | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | if (save) | |
1729 | gdb_safe_append_history (); | |
1730 | } | |
2f9d54cf | 1731 | } |
230d2906 | 1732 | catch (const gdb_exception &ex) |
492d29ea PA |
1733 | { |
1734 | exception_print (gdb_stderr, ex); | |
1735 | } | |
2f9d54cf | 1736 | |
9d1447e0 SDJ |
1737 | /* Destroy any values currently allocated now instead of leaving it |
1738 | to global destructors, because that may be too late. For | |
1739 | example, the destructors of xmethod values call into the Python | |
1740 | runtime, which is finalized via a final cleanup. */ | |
1741 | finalize_values (); | |
1742 | ||
2f9d54cf | 1743 | /* Do any final cleanups before exiting. */ |
a70b8144 | 1744 | try |
2f9d54cf | 1745 | { |
fe7b42e5 | 1746 | do_final_cleanups (); |
2f9d54cf | 1747 | } |
230d2906 | 1748 | catch (const gdb_exception &ex) |
492d29ea PA |
1749 | { |
1750 | exception_print (gdb_stderr, ex); | |
1751 | } | |
b0abbc58 | 1752 | |
9e0b60a8 JM |
1753 | exit (exit_code); |
1754 | } | |
1755 | ||
268a799a PA |
1756 | /* The value of the "interactive-mode" setting. */ |
1757 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1758 | |
268a799a PA |
1759 | /* Implement the "show interactive-mode" option. */ |
1760 | ||
1761 | static void | |
1762 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1763 | struct cmd_list_element *c, | |
1764 | const char *value) | |
9e0b60a8 | 1765 | { |
268a799a PA |
1766 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1767 | fprintf_filtered (file, "Debugger's interactive mode " | |
1768 | "is %s (currently %s).\n", | |
d9de1fe3 | 1769 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1770 | else |
1771 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1772 | } | |
1773 | ||
1774 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1775 | |
268a799a PA |
1776 | int |
1777 | input_interactive_p (struct ui *ui) | |
1778 | { | |
c63a1f86 JK |
1779 | if (batch_flag) |
1780 | return 0; | |
1781 | ||
268a799a PA |
1782 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1783 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1784 | |
268a799a | 1785 | return ui->input_interactive_p; |
9e0b60a8 JM |
1786 | } |
1787 | \f | |
9e0b60a8 | 1788 | static void |
0b39b52e | 1789 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1790 | { |
dc7eb48e PA |
1791 | /* Can't call dont_repeat here because we're not necessarily reading |
1792 | from stdin. */ | |
1793 | *saved_command_line = 0; | |
9e0b60a8 JM |
1794 | } |
1795 | \f | |
1796 | /* Functions to manipulate command line editing control variables. */ | |
1797 | ||
1798 | /* Number of commands to print in each call to show_commands. */ | |
1799 | #define Hist_print 10 | |
d318976c | 1800 | void |
85c4be7c | 1801 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1802 | { |
1803 | /* Index for history commands. Relative to history_base. */ | |
1804 | int offset; | |
1805 | ||
1806 | /* Number of the history entry which we are planning to display next. | |
1807 | Relative to history_base. */ | |
1808 | static int num = 0; | |
1809 | ||
9e0b60a8 | 1810 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1811 | |
1812 | if (args) | |
1813 | { | |
1814 | if (args[0] == '+' && args[1] == '\0') | |
1815 | /* "info editing +" should print from the stored position. */ | |
1816 | ; | |
1817 | else | |
1818 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1819 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1820 | } |
1821 | /* "show commands" means print the last Hist_print commands. */ | |
1822 | else | |
1823 | { | |
840a9a1f | 1824 | num = history_length - Hist_print; |
9e0b60a8 JM |
1825 | } |
1826 | ||
1827 | if (num < 0) | |
1828 | num = 0; | |
1829 | ||
1830 | /* If there are at least Hist_print commands, we want to display the last | |
1831 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1832 | if (history_length - num < Hist_print) |
9e0b60a8 | 1833 | { |
840a9a1f | 1834 | num = history_length - Hist_print; |
9e0b60a8 JM |
1835 | if (num < 0) |
1836 | num = 0; | |
1837 | } | |
1838 | ||
840a9a1f PA |
1839 | for (offset = num; |
1840 | offset < num + Hist_print && offset < history_length; | |
1841 | offset++) | |
9e0b60a8 JM |
1842 | { |
1843 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1844 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1845 | } |
1846 | ||
1847 | /* The next command we want to display is the next one that we haven't | |
1848 | displayed yet. */ | |
1849 | num += Hist_print; | |
1850 | ||
1851 | /* If the user repeats this command with return, it should do what | |
1852 | "show commands +" does. This is unnecessary if arg is null, | |
1853 | because "show commands +" is not useful after "show commands". */ | |
1854 | if (from_tty && args) | |
85c4be7c | 1855 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1856 | } |
1857 | ||
ebfd00d2 | 1858 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1859 | |
ebfd00d2 | 1860 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1861 | |
ebfd00d2 PP |
1862 | static void |
1863 | set_readline_history_size (int history_size) | |
1864 | { | |
1865 | gdb_assert (history_size >= -1); | |
840a9a1f | 1866 | |
ebfd00d2 | 1867 | if (history_size == -1) |
840a9a1f | 1868 | unstifle_history (); |
883b9c6c | 1869 | else |
ebfd00d2 PP |
1870 | stifle_history (history_size); |
1871 | } | |
1872 | ||
1873 | /* Called by do_setshow_command. */ | |
1874 | static void | |
eb4c3f4a TT |
1875 | set_history_size_command (const char *args, |
1876 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1877 | { |
1878 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1879 | } |
1880 | ||
d318976c | 1881 | void |
981a3fb3 | 1882 | set_history (const char *args, int from_tty) |
9e0b60a8 | 1883 | { |
3e43a32a MS |
1884 | printf_unfiltered (_("\"set history\" must be followed " |
1885 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1886 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1887 | } |
1888 | ||
d318976c | 1889 | void |
981a3fb3 | 1890 | show_history (const char *args, int from_tty) |
9e0b60a8 JM |
1891 | { |
1892 | cmd_show_list (showhistlist, from_tty, ""); | |
1893 | } | |
1894 | ||
371d5dec | 1895 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 | 1896 | |
94f2c730 | 1897 | /* Called by do_set_command. An elaborate joke. */ |
d318976c | 1898 | void |
eb4c3f4a | 1899 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1900 | { |
6f937416 | 1901 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1902 | struct cmd_list_element *showcmd; |
1903 | ||
1904 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1905 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 | 1906 | |
94f2c730 PW |
1907 | if (c->doc && c->doc_allocated) |
1908 | xfree ((char *) c->doc); | |
1909 | if (showcmd->doc && showcmd->doc_allocated) | |
1910 | xfree ((char *) showcmd->doc); | |
9e0b60a8 JM |
1911 | if (info_verbose) |
1912 | { | |
94f2c730 PW |
1913 | c->doc = _("Set verbose printing of informational messages."); |
1914 | showcmd->doc = _("Show verbose printing of informational messages."); | |
9e0b60a8 JM |
1915 | } |
1916 | else | |
1917 | { | |
94f2c730 PW |
1918 | c->doc = _("Set verbosity."); |
1919 | showcmd->doc = _("Show verbosity."); | |
9e0b60a8 | 1920 | } |
94f2c730 PW |
1921 | c->doc_allocated = 0; |
1922 | showcmd->doc_allocated = 0; | |
9e0b60a8 JM |
1923 | } |
1924 | ||
9e0b60a8 | 1925 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1926 | have been read so that the user can change the history file via his |
1927 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1928 | overrides all of this. */ | |
9e0b60a8 JM |
1929 | |
1930 | void | |
fba45db2 | 1931 | init_history (void) |
9e0b60a8 | 1932 | { |
b5a9bfbe | 1933 | const char *tmpenv; |
9e0b60a8 | 1934 | |
b58c513b | 1935 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1936 | if (tmpenv) |
840a9a1f | 1937 | { |
bc460514 | 1938 | long var; |
0fc26caf | 1939 | int saved_errno; |
bc460514 PP |
1940 | char *endptr; |
1941 | ||
1942 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1943 | errno = 0; |
bc460514 | 1944 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1945 | saved_errno = errno; |
bc460514 PP |
1946 | endptr = skip_spaces (endptr); |
1947 | ||
1948 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1949 | empty string, a negative number or a huge positive number (larger than | |
1950 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1951 | history size to the number we have read. This behavior is consistent | |
1952 | with how bash handles HISTSIZE. */ | |
1953 | if (*endptr != '\0') | |
1954 | ; | |
1955 | else if (*tmpenv == '\0' | |
1956 | || var < 0 | |
0fc26caf PP |
1957 | || var > INT_MAX |
1958 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1959 | errno after calling strtol to distinguish between a value that | |
1960 | is exactly INT_MAX and an overflowing value that was clamped | |
1961 | to INT_MAX. */ | |
1962 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1963 | history_size_setshow_var = -1; |
1964 | else | |
1965 | history_size_setshow_var = var; | |
840a9a1f | 1966 | } |
bc460514 PP |
1967 | |
1968 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1969 | default. */ | |
1970 | if (history_size_setshow_var == -2) | |
840a9a1f | 1971 | history_size_setshow_var = 256; |
9e0b60a8 | 1972 | |
ebfd00d2 | 1973 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1974 | |
1975 | tmpenv = getenv ("GDBHISTFILE"); | |
1976 | if (tmpenv) | |
1b36a34b | 1977 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1978 | else if (!history_filename) |
1979 | { | |
1980 | /* We include the current directory so that if the user changes | |
1981 | directories the file written will be the same as the one | |
1982 | that was read. */ | |
a0b3c4fd | 1983 | #ifdef __MSDOS__ |
eb2f494a | 1984 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1985 | history_filename = concat (current_directory, "/_gdb_history", |
1986 | (char *)NULL); | |
a0b3c4fd | 1987 | #else |
1754f103 MK |
1988 | history_filename = concat (current_directory, "/.gdb_history", |
1989 | (char *)NULL); | |
a0b3c4fd | 1990 | #endif |
c5aa993b | 1991 | } |
9e0b60a8 JM |
1992 | read_history (history_filename); |
1993 | } | |
1994 | ||
920d2a44 | 1995 | static void |
ab821bc6 PA |
1996 | show_prompt (struct ui_file *file, int from_tty, |
1997 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1998 | { |
1999 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
2000 | } | |
2001 | ||
3c216924 PA |
2002 | /* "set editing" command. */ |
2003 | ||
2004 | static void | |
eb4c3f4a | 2005 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
2006 | { |
2007 | change_line_handler (set_editing_cmd_var); | |
2008 | /* Update the control variable so that MI's =cmd-param-changed event | |
2009 | shows the correct value. */ | |
2010 | set_editing_cmd_var = current_ui->command_editing; | |
2011 | } | |
2012 | ||
920d2a44 | 2013 | static void |
3c216924 PA |
2014 | show_editing (struct ui_file *file, int from_tty, |
2015 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2016 | { |
3e43a32a MS |
2017 | fprintf_filtered (file, _("Editing of command lines as " |
2018 | "they are typed is %s.\n"), | |
3c216924 | 2019 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
2020 | } |
2021 | ||
2022 | static void | |
2023 | show_annotation_level (struct ui_file *file, int from_tty, | |
2024 | struct cmd_list_element *c, const char *value) | |
2025 | { | |
2026 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
2027 | } | |
2028 | ||
2029 | static void | |
2030 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
2031 | struct cmd_list_element *c, const char *value) | |
2032 | { | |
3e43a32a MS |
2033 | fprintf_filtered (file, _("Notification of completion for " |
2034 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
2035 | value); |
2036 | } | |
6dea1fbd | 2037 | |
8d551b02 DE |
2038 | /* New values of the "data-directory" parameter are staged here. */ |
2039 | static char *staged_gdb_datadir; | |
2040 | ||
6dea1fbd JK |
2041 | /* "set" command for the gdb_datadir configuration variable. */ |
2042 | ||
2043 | static void | |
eb4c3f4a | 2044 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 2045 | { |
8d551b02 | 2046 | set_gdb_data_directory (staged_gdb_datadir); |
76727919 | 2047 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
2048 | } |
2049 | ||
8d551b02 DE |
2050 | /* "show" command for the gdb_datadir configuration variable. */ |
2051 | ||
2052 | static void | |
2053 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2054 | struct cmd_list_element *c, const char *value) | |
2055 | { | |
2056 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
2057 | gdb_datadir); | |
2058 | } | |
2059 | ||
97c85fc6 | 2060 | static void |
eb4c3f4a TT |
2061 | set_history_filename (const char *args, |
2062 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
2063 | { |
2064 | /* We include the current directory so that if the user changes | |
2065 | directories the file written will be the same as the one | |
2066 | that was read. */ | |
2067 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
2068 | history_filename = reconcat (history_filename, current_directory, "/", | |
2069 | history_filename, (char *) NULL); | |
2070 | } | |
2071 | ||
7734102d EZ |
2072 | static void |
2073 | init_gdb_version_vars (void) | |
2074 | { | |
2075 | struct internalvar *major_version_var = create_internalvar ("_gdb_major"); | |
2076 | struct internalvar *minor_version_var = create_internalvar ("_gdb_minor"); | |
2077 | int vmajor = 0, vminor = 0, vrevision = 0; | |
2078 | sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision); | |
2079 | set_internalvar_integer (major_version_var, vmajor); | |
2080 | set_internalvar_integer (minor_version_var, vminor + (vrevision > 0)); | |
2081 | } | |
2082 | ||
9e0b60a8 | 2083 | static void |
fba45db2 | 2084 | init_main (void) |
9e0b60a8 | 2085 | { |
60eb5395 PA |
2086 | struct cmd_list_element *c; |
2087 | ||
ab821bc6 PA |
2088 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2089 | the DEFAULT_PROMPT is. */ | |
2090 | set_prompt (DEFAULT_PROMPT); | |
2091 | ||
9e0b60a8 JM |
2092 | /* Set the important stuff up for command editing. */ |
2093 | command_editing_p = 1; | |
9e0b60a8 | 2094 | history_expansion_p = 0; |
452a569e | 2095 | write_history_p = 0; |
9e0b60a8 JM |
2096 | |
2097 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2098 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2099 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2100 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2101 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2102 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2103 | rl_readline_name = "gdb"; |
7cb3ec5e | 2104 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2105 | |
467d8519 TT |
2106 | /* The name for this defun comes from Bash, where it originated. |
2107 | 15 is Control-o, the same binding this function has in Bash. */ | |
2108 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2109 | ||
4d28ad1e | 2110 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2111 | &top_prompt, |
3e43a32a MS |
2112 | _("Set gdb's prompt"), |
2113 | _("Show gdb's prompt"), | |
ab821bc6 PA |
2114 | NULL, NULL, |
2115 | show_prompt, | |
4d28ad1e | 2116 | &setlist, &showlist); |
9e0b60a8 | 2117 | |
1bedd215 | 2118 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2119 | Don't repeat this command.\nPrimarily \ |
2120 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2121 | hitting return.")); |
9e0b60a8 | 2122 | |
5bf193a2 | 2123 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2124 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2125 | Set editing of command lines as they are typed."), _("\ |
2126 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2127 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2128 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2129 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2130 | set_editing, |
2131 | show_editing, | |
5bf193a2 AC |
2132 | &setlist, &showlist); |
2133 | ||
2134 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2135 | Set saving of the history record on exit."), _("\ | |
2136 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2137 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2138 | Without an argument, saving is enabled."), |
2139 | NULL, | |
920d2a44 | 2140 | show_write_history_p, |
5bf193a2 | 2141 | &sethistlist, &showhistlist); |
9e0b60a8 | 2142 | |
ebfd00d2 PP |
2143 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2144 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2145 | Set the size of the command history,"), _("\ |
2146 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2147 | ie. the number of previous commands to keep a record of.\n\ |
2148 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2149 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2150 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2151 | set_history_size_command, |
2152 | show_history_size, | |
2153 | &sethistlist, &showhistlist); | |
4d28ad1e | 2154 | |
fc637f04 PP |
2155 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2156 | &history_remove_duplicates, _("\ | |
2157 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2158 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2159 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2160 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2161 | entry, each time a new history entry is added.\n\ | |
2162 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2163 | Only history entries added during this session are considered for removal.\n\ | |
2164 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2165 | By default this option is set to 0."), | |
2166 | NULL, | |
2167 | show_history_remove_duplicates, | |
2168 | &sethistlist, &showhistlist); | |
2169 | ||
4d28ad1e AC |
2170 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2171 | Set the filename in which to record the command history"), _("\ | |
2172 | Show the filename in which to record the command history"), _("\ | |
2173 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2174 | set_history_filename, |
920d2a44 | 2175 | show_history_filename, |
4d28ad1e | 2176 | &sethistlist, &showhistlist); |
9e0b60a8 | 2177 | |
e360902b | 2178 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2179 | Set whether to confirm potentially dangerous operations."), _("\ |
2180 | Show whether to confirm potentially dangerous operations."), NULL, | |
2181 | NULL, | |
e360902b | 2182 | show_confirm, |
5bf193a2 | 2183 | &setlist, &showlist); |
9e0b60a8 | 2184 | |
85c07804 AC |
2185 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2186 | Set annotation_level."), _("\ | |
2187 | Show annotation_level."), _("\ | |
9e0b60a8 | 2188 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2189 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2190 | NULL, |
920d2a44 | 2191 | show_annotation_level, |
85c07804 | 2192 | &setlist, &showlist); |
362646f5 | 2193 | |
5bf193a2 AC |
2194 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2195 | &exec_done_display_p, _("\ | |
2196 | Set notification of completion for asynchronous execution commands."), _("\ | |
2197 | Show notification of completion for asynchronous execution commands."), _("\ | |
2198 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2199 | NULL, | |
920d2a44 | 2200 | show_exec_done_display_p, |
5bf193a2 | 2201 | &setlist, &showlist); |
b14b1491 TT |
2202 | |
2203 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2204 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2205 | _("Show GDB's data directory."), |
2206 | _("\ | |
2207 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2208 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2209 | &setlist, |
2210 | &showlist); | |
268a799a PA |
2211 | |
2212 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2213 | &interactive_mode, _("\ | |
2214 | Set whether GDB's standard input is a terminal."), _("\ | |
2215 | Show whether GDB's standard input is a terminal."), _("\ | |
2216 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2217 | means that GDB should wait for the user to answer queries associated to\n\ | |
2218 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2219 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2220 | If auto (the default), determine which mode to use based on the standard\n\ | |
2221 | input settings."), | |
2222 | NULL, | |
2223 | show_interactive_mode, | |
2224 | &setlist, &showlist); | |
60eb5395 PA |
2225 | |
2226 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2227 | Create a new UI. It takes two arguments:\n\ | |
2228 | The first argument is the name of the interpreter to run.\n\ | |
89549d7f | 2229 | The second argument is the terminal the UI runs on."), &cmdlist); |
60eb5395 | 2230 | set_cmd_completer (c, interpreter_completer); |
9e0b60a8 | 2231 | } |
64cdedad EZ |
2232 | |
2233 | void | |
2234 | gdb_init (char *argv0) | |
2235 | { | |
68bb5386 PW |
2236 | saved_command_line = xstrdup (""); |
2237 | previous_saved_command_line = xstrdup (""); | |
2238 | ||
64cdedad EZ |
2239 | if (pre_init_ui_hook) |
2240 | pre_init_ui_hook (); | |
2241 | ||
371d5dec | 2242 | /* Run the init function of each source file. */ |
64cdedad | 2243 | |
64cdedad EZ |
2244 | #ifdef __MSDOS__ |
2245 | /* Make sure we return to the original directory upon exit, come | |
2246 | what may, since the OS doesn't do that for us. */ | |
2247 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2248 | #endif | |
2249 | ||
371d5dec MS |
2250 | init_cmd_lists (); /* This needs to be done first. */ |
2251 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2252 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2253 | |
24b73f8e PP |
2254 | init_page_info (); |
2255 | ||
9dea9163 | 2256 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2257 | initialize_all_files (); |
9dea9163 | 2258 | |
6c95b8df PA |
2259 | /* This creates the current_program_space. Do this after all the |
2260 | _initialize_foo routines have had a chance to install their | |
2261 | per-sspace data keys. Also do this before | |
2262 | initialize_current_architecture is called, because it accesses | |
2263 | exec_bfd of the current program space. */ | |
2264 | initialize_progspace (); | |
2265 | initialize_inferiors (); | |
64cdedad EZ |
2266 | initialize_current_architecture (); |
2267 | init_cli_cmds(); | |
371d5dec | 2268 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2269 | |
0ea3f30e DJ |
2270 | initialize_stdin_serial (); |
2271 | ||
6a06d660 PP |
2272 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2273 | to alter it. */ | |
2274 | set_initial_gdb_ttystate (); | |
2275 | ||
362646f5 | 2276 | async_init_signals (); |
64cdedad | 2277 | |
371d5dec MS |
2278 | /* We need a default language for parsing expressions, so simple |
2279 | things like "set width 0" won't fail if no language is explicitly | |
2280 | set in a config file or implicitly set by reading an executable | |
2281 | during startup. */ | |
64cdedad | 2282 | set_language (language_c); |
371d5dec | 2283 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2284 | |
6dddc817 | 2285 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2286 | installed. For example "info pretty-printer" needs the "info" |
2287 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2288 | script initialization here. */ |
2289 | finish_ext_lang_initialization (); | |
7734102d EZ |
2290 | |
2291 | /* Create $_gdb_major and $_gdb_minor convenience variables. */ | |
2292 | init_gdb_version_vars (); | |
64cdedad | 2293 | } |