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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
1d506c26 | 3 | Copyright (C) 1986-2024 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "gdbcmd.h" | |
210661e7 EZ |
22 | #include "cli/cli-cmds.h" |
23 | #include "cli/cli-script.h" | |
24 | #include "cli/cli-setshow.h" | |
18a642a1 | 25 | #include "cli/cli-decode.h" |
c906108c SS |
26 | #include "symtab.h" |
27 | #include "inferior.h" | |
45741a9c | 28 | #include "infrun.h" |
042be3a9 | 29 | #include <signal.h> |
c906108c | 30 | #include "target.h" |
68c765e2 | 31 | #include "target-dcache.h" |
c906108c SS |
32 | #include "breakpoint.h" |
33 | #include "gdbtypes.h" | |
34 | #include "expression.h" | |
35 | #include "value.h" | |
36 | #include "language.h" | |
766f8836 | 37 | #include "terminal.h" |
268a13a5 | 38 | #include "gdbsupport/job-control.h" |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
13d03262 | 42 | #include "ui.h" |
268a13a5 | 43 | #include "gdbsupport/version.h" |
210661e7 | 44 | #include "serial.h" |
f17517ea | 45 | #include "main.h" |
400b5eca | 46 | #include "gdbsupport/event-loop.h" |
8ea051c5 | 47 | #include "gdbthread.h" |
6dddc817 | 48 | #include "extension.h" |
b4a14fd0 | 49 | #include "interps.h" |
76727919 | 50 | #include "observable.h" |
bd712aed | 51 | #include "maint.h" |
97c85fc6 | 52 | #include "filenames.h" |
06096720 | 53 | #include "frame.h" |
06cc9596 | 54 | #include "gdbsupport/gdb_select.h" |
268a13a5 | 55 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 56 | #include "gdbarch.h" |
ff8577f6 | 57 | #include "gdbsupport/pathstuff.h" |
6ec1d75e | 58 | #include "cli/cli-style.h" |
3cd52293 | 59 | #include "pager.h" |
c906108c | 60 | |
371d5dec | 61 | /* readline include files. */ |
dbda9972 AC |
62 | #include "readline/readline.h" |
63 | #include "readline/history.h" | |
c906108c SS |
64 | |
65 | /* readline defines this. */ | |
66 | #undef savestring | |
67 | ||
68 | #include <sys/types.h> | |
c906108c | 69 | |
c2c6d25f | 70 | #include "event-top.h" |
53ce3c39 | 71 | #include <sys/stat.h> |
c906108c | 72 | #include <ctype.h> |
8b93c638 JM |
73 | #include "ui-out.h" |
74 | #include "cli-out.h" | |
2f9d54cf | 75 | #include "tracepoint.h" |
93d6eb10 | 76 | #include "inf-loop.h" |
c906108c | 77 | |
18206ca3 PP |
78 | #if defined(TUI) |
79 | # include "tui/tui.h" | |
87c9b028 | 80 | # include "tui/tui-io.h" |
18206ca3 PP |
81 | #endif |
82 | ||
60eb5395 PA |
83 | #ifndef O_NOCTTY |
84 | # define O_NOCTTY 0 | |
85 | #endif | |
86 | ||
ca7b0bbc TT |
87 | extern void initialize_all_files (void); |
88 | ||
95298e72 PM |
89 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
90 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
91 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
92 | ||
405feb71 | 93 | /* Default command line prompt. This is overridden in some configs. */ |
104c1213 JM |
94 | |
95 | #ifndef DEFAULT_PROMPT | |
96 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
97 | #endif |
98 | ||
87fb00ea SM |
99 | struct ui_file ** |
100 | current_ui_gdb_stdout_ptr () | |
101 | { | |
102 | return ¤t_ui->m_gdb_stdout; | |
79aa2fe8 PA |
103 | } |
104 | ||
87fb00ea SM |
105 | struct ui_file ** |
106 | current_ui_gdb_stdin_ptr () | |
107 | { | |
108 | return ¤t_ui->m_gdb_stdin; | |
109 | } | |
110 | ||
111 | struct ui_file ** | |
112 | current_ui_gdb_stderr_ptr () | |
113 | { | |
114 | return ¤t_ui->m_gdb_stderr; | |
115 | } | |
116 | ||
117 | struct ui_file ** | |
118 | current_ui_gdb_stdlog_ptr () | |
119 | { | |
120 | return ¤t_ui->m_gdb_stdlog; | |
121 | } | |
122 | ||
123 | struct ui_out ** | |
124 | current_ui_current_uiout_ptr () | |
125 | { | |
126 | return ¤t_ui->m_current_uiout; | |
127 | } | |
79aa2fe8 | 128 | |
c906108c SS |
129 | int inhibit_gdbinit = 0; |
130 | ||
050a2e1d PA |
131 | /* Flag for whether we want to confirm potentially dangerous |
132 | operations. Default is yes. */ | |
133 | ||
491144b5 | 134 | bool confirm = true; |
c906108c | 135 | |
920d2a44 | 136 | static void |
e360902b | 137 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
138 | struct cmd_list_element *c, const char *value) |
139 | { | |
6cb06a8c TT |
140 | gdb_printf (file, _("Whether to confirm potentially " |
141 | "dangerous operations is %s.\n"), | |
142 | value); | |
920d2a44 | 143 | } |
c906108c | 144 | |
2669cade | 145 | /* The last command line executed on the console. Used for command |
68bb5386 PW |
146 | repetitions when the user enters an empty line. */ |
147 | ||
148 | static char *saved_command_line; | |
149 | ||
150 | /* If not NULL, the arguments that should be passed if | |
151 | saved_command_line is repeated. */ | |
152 | ||
153 | static const char *repeat_arguments; | |
154 | ||
155 | /* The previous last command line executed on the console. Used for command | |
156 | repetitions when a command wants to relaunch the previously launched | |
157 | command. We need this as when a command is running, saved_command_line | |
158 | already contains the line of the currently executing command. */ | |
159 | ||
6bd434d6 | 160 | static char *previous_saved_command_line; |
68bb5386 PW |
161 | |
162 | /* If not NULL, the arguments that should be passed if the | |
163 | previous_saved_command_line is repeated. */ | |
164 | ||
165 | static const char *previous_repeat_arguments; | |
c906108c SS |
166 | |
167 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 168 | affects things like recording into the command history, commands |
c906108c SS |
169 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
170 | whatever) can issue its own commands and also send along commands | |
171 | from the user, and have the user not notice that the user interface | |
172 | is issuing commands too. */ | |
2f78cffc | 173 | bool server_command; |
c906108c | 174 | |
371d5dec | 175 | /* Timeout limit for response from target. */ |
c906108c | 176 | |
7734102d EZ |
177 | /* The default value has been changed many times over the years. It |
178 | was originally 5 seconds. But that was thought to be a long time | |
ce808e91 | 179 | to sit and wait, so it was changed to 2 seconds. That was thought |
7734102d | 180 | to be plenty unless the connection was going through some terminal |
ce808e91 AC |
181 | server or multiplexer or other form of hairy serial connection. |
182 | ||
7734102d | 183 | In mid-1996, remote_timeout was moved from remote.c to top.c and |
ce808e91 AC |
184 | it began being used in other remote-* targets. It appears that the |
185 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 186 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
187 | |
188 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
7734102d | 189 | 20 seconds is far worse. This demonstrates the difficulty of using |
ce808e91 AC |
190 | a single variable for all protocol timeouts. |
191 | ||
7734102d | 192 | As remote.c is used much more than remote-e7000.c, it was changed |
371d5dec | 193 | back to 2 seconds in 1999. */ |
ce808e91 AC |
194 | |
195 | int remote_timeout = 2; | |
c906108c | 196 | |
6dd77b81 | 197 | /* Sbrk location on entry to main. Used for statistics only. */ |
6242c6a6 | 198 | #ifdef HAVE_USEFUL_SBRK |
6dd77b81 RH |
199 | char *lim_at_start; |
200 | #endif | |
201 | ||
c906108c SS |
202 | /* Hooks for alternate command interfaces. */ |
203 | ||
371d5dec MS |
204 | /* This hook is called from within gdb's many mini-event loops which |
205 | could steal control from a real user interface's event loop. It | |
206 | returns non-zero if the user is requesting a detach, zero | |
207 | otherwise. */ | |
7a292a7a | 208 | |
98bbd631 | 209 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 210 | |
c906108c | 211 | |
c906108c SS |
212 | /* Called from print_frame_info to list the line we stopped in. */ |
213 | ||
7734102d | 214 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
371d5dec | 215 | int line, |
7734102d | 216 | int stopline, |
371d5dec | 217 | int noerror); |
c906108c SS |
218 | /* Replaces most of query. */ |
219 | ||
9a4105ab | 220 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
221 | |
222 | /* Replaces most of warning. */ | |
223 | ||
54b815dd | 224 | thread_local void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 225 | |
9a4105ab AC |
226 | /* These three functions support getting lines of text from the user. |
227 | They are used in sequence. First deprecated_readline_begin_hook is | |
228 | called with a text string that might be (for example) a message for | |
229 | the user to type in a sequence of commands to be executed at a | |
230 | breakpoint. If this function calls back to a GUI, it might take | |
231 | this opportunity to pop up a text interaction window with this | |
232 | message. Next, deprecated_readline_hook is called with a prompt | |
233 | that is emitted prior to collecting the user input. It can be | |
234 | called multiple times. Finally, deprecated_readline_end_hook is | |
235 | called to notify the GUI that we are done with the interaction | |
236 | window and it can close it. */ | |
c906108c | 237 | |
a121b7c1 | 238 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 239 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 240 | void (*deprecated_readline_end_hook) (void); |
c906108c | 241 | |
6426a772 | 242 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 243 | to or detached from an already running process. */ |
6426a772 | 244 | |
9a4105ab AC |
245 | void (*deprecated_attach_hook) (void); |
246 | void (*deprecated_detach_hook) (void); | |
6426a772 | 247 | |
371d5dec MS |
248 | /* Used by UI as a wrapper around command execution. May do various |
249 | things like enabling/disabling buttons, etc... */ | |
c906108c | 250 | |
7734102d | 251 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
95a6b0a1 | 252 | const char *cmd, int from_tty); |
c906108c SS |
253 | |
254 | /* Called when the current thread changes. Argument is thread id. */ | |
255 | ||
9a4105ab | 256 | void (*deprecated_context_hook) (int id); |
c906108c | 257 | |
13d03262 | 258 | /* See top.h. */ |
ac16b09d | 259 | |
13d03262 | 260 | void |
ac16b09d AB |
261 | unbuffer_stream (FILE *stream) |
262 | { | |
263 | /* Unbuffer the input stream so that in gdb_readline_no_editing_callback, | |
264 | the calls to fgetc fetch only one char at the time from STREAM. | |
265 | ||
266 | This is important because gdb_readline_no_editing_callback will read | |
267 | from STREAM up to the first '\n' character, after this GDB returns to | |
268 | the event loop and relies on a select on STREAM indicating that more | |
269 | input is pending. | |
270 | ||
271 | If STREAM is buffered then the fgetc calls may have moved all the | |
272 | pending input from the kernel into a local buffer, after which the | |
273 | select will not indicate that more input is pending, and input after | |
274 | the first '\n' will not be processed immediately. | |
275 | ||
276 | Please ensure that any changes in this area run the MI tests with the | |
277 | FORCE_SEPARATE_MI_TTY=1 flag being passed. */ | |
278 | ||
279 | #ifdef __MINGW32__ | |
280 | /* With MS-Windows runtime, making stdin unbuffered when it's | |
281 | connected to the terminal causes it to misbehave. */ | |
282 | if (!ISATTY (stream)) | |
283 | setbuf (stream, nullptr); | |
284 | #else | |
285 | /* On GNU/Linux the issues described above can impact GDB even when | |
286 | dealing with input from a terminal. For now we unbuffer the input | |
287 | stream for everyone except MS-Windows. */ | |
288 | setbuf (stream, nullptr); | |
289 | #endif | |
290 | } | |
291 | ||
c906108c SS |
292 | /* Handler for SIGHUP. */ |
293 | ||
294 | #ifdef SIGHUP | |
392a587b | 295 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 296 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 297 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
298 | /* static */ void |
299 | quit_cover (void) | |
c906108c | 300 | { |
e360902b PA |
301 | /* Stop asking user for confirmation --- we're exiting. This |
302 | prevents asking the user dumb questions. */ | |
303 | confirm = 0; | |
c5aa993b | 304 | quit_command ((char *) 0, 0); |
c906108c SS |
305 | } |
306 | #endif /* defined SIGHUP */ | |
307 | \f | |
7a9dd1b2 | 308 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 309 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 310 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 311 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 312 | /* static */ int source_line_number; |
c906108c SS |
313 | |
314 | /* Name of the file we are sourcing. */ | |
392a587b | 315 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 316 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 317 | event-top.c into this file, top.c. */ |
6caa91b6 | 318 | /* static */ std::string source_file_name; |
c906108c | 319 | |
c906108c SS |
320 | /* Read commands from STREAM. */ |
321 | void | |
fba45db2 | 322 | read_command_file (FILE *stream) |
c906108c | 323 | { |
f38d3ad1 | 324 | struct ui *ui = current_ui; |
c906108c | 325 | |
ac16b09d AB |
326 | unbuffer_stream (stream); |
327 | ||
3c9ebddd TT |
328 | scoped_restore save_instream |
329 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
330 | |
331 | /* Read commands from `instream' and execute them until end of file | |
332 | or error reading instream. */ | |
333 | ||
f38d3ad1 | 334 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 | 335 | { |
faa4ebe1 | 336 | /* Get a command-line. This calls the readline package. */ |
f8631e5e SM |
337 | std::string command_buffer; |
338 | const char *command | |
339 | = command_line_input (command_buffer, nullptr, nullptr); | |
340 | if (command == nullptr) | |
faa4ebe1 PA |
341 | break; |
342 | command_handler (command); | |
343 | } | |
c906108c | 344 | } |
c906108c | 345 | |
e41a3b1a | 346 | #ifdef __MSDOS__ |
70976b65 | 347 | static void |
e41a3b1a AC |
348 | do_chdir_cleanup (void *old_dir) |
349 | { | |
f515a1d6 | 350 | chdir ((const char *) old_dir); |
b8c9b27d | 351 | xfree (old_dir); |
e41a3b1a AC |
352 | } |
353 | #endif | |
354 | ||
54f70bc1 TT |
355 | scoped_value_mark |
356 | prepare_execute_command () | |
4e5d721f | 357 | { |
371d5dec MS |
358 | /* With multiple threads running while the one we're examining is |
359 | stopped, the dcache can get stale without us being able to detect | |
360 | it. For the duration of the command, though, use the dcache to | |
361 | help things like backtrace. */ | |
4e5d721f | 362 | if (non_stop) |
41336620 | 363 | target_dcache_invalidate (current_program_space->aspace); |
028d0ed5 | 364 | |
54f70bc1 | 365 | return scoped_value_mark (); |
4e5d721f DE |
366 | } |
367 | ||
77cce10f PA |
368 | /* Tell the user if the language has changed (except first time) after |
369 | executing a command. */ | |
370 | ||
371 | void | |
372 | check_frame_language_change (void) | |
373 | { | |
374 | static int warned = 0; | |
bd2b40ac | 375 | frame_info_ptr frame; |
77cce10f PA |
376 | |
377 | /* First make sure that a new frame has been selected, in case the | |
378 | command or the hooks changed the program state. */ | |
7ff38b1c | 379 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
380 | if (current_language != expected_language) |
381 | { | |
382 | if (language_mode == language_mode_auto && info_verbose) | |
383 | { | |
9f67fc59 TT |
384 | /* Print what changed. */ |
385 | language_info (); | |
77cce10f PA |
386 | } |
387 | warned = 0; | |
388 | } | |
389 | ||
390 | /* Warn the user if the working language does not match the language | |
391 | of the current frame. Only warn the user if we are actually | |
392 | running the program, i.e. there is a stack. */ | |
393 | /* FIXME: This should be cacheing the frame and only running when | |
394 | the frame changes. */ | |
395 | ||
396 | if (has_stack_frames ()) | |
397 | { | |
398 | enum language flang; | |
399 | ||
7ff38b1c | 400 | flang = get_frame_language (frame); |
77cce10f PA |
401 | if (!warned |
402 | && flang != language_unknown | |
403 | && flang != current_language->la_language) | |
404 | { | |
6cb06a8c | 405 | gdb_printf ("%s\n", _(lang_frame_mismatch_warn)); |
77cce10f PA |
406 | warned = 1; |
407 | } | |
408 | } | |
409 | } | |
410 | ||
98880d46 PA |
411 | /* See top.h. */ |
412 | ||
0b333c5e PA |
413 | void |
414 | wait_sync_command_done (void) | |
415 | { | |
4295e285 | 416 | /* Processing events may change the current UI. */ |
4b6749b9 | 417 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
418 | struct ui *ui = current_ui; |
419 | ||
1192f124 SM |
420 | /* We're about to wait until the target stops after having resumed |
421 | it so must force-commit resumptions, in case we're being called | |
422 | in some context where a scoped_disable_commit_resumed object is | |
423 | active. I.e., this function is a commit-resumed sync/flush | |
424 | point. */ | |
425 | scoped_enable_commit_resumed enable ("sync wait"); | |
426 | ||
0b333c5e | 427 | while (gdb_do_one_event () >= 0) |
4295e285 | 428 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
429 | break; |
430 | } | |
431 | ||
432 | /* See top.h. */ | |
433 | ||
98880d46 PA |
434 | void |
435 | maybe_wait_sync_command_done (int was_sync) | |
436 | { | |
437 | /* If the interpreter is in sync mode (we're running a user | |
438 | command's list, running command hooks or similars), and we | |
439 | just ran a synchronous command that started the target, wait | |
440 | for that command to end. */ | |
3b12939d PA |
441 | if (!current_ui->async |
442 | && !was_sync | |
443 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 444 | wait_sync_command_done (); |
98880d46 PA |
445 | } |
446 | ||
85c4be7c TT |
447 | /* See command.h. */ |
448 | ||
449 | void | |
450 | set_repeat_arguments (const char *args) | |
451 | { | |
452 | repeat_arguments = args; | |
453 | } | |
454 | ||
648bf667 | 455 | /* Execute the line P as a command, in the current user context. |
d318976c | 456 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 457 | |
d318976c | 458 | void |
95a6b0a1 | 459 | execute_command (const char *p, int from_tty) |
c906108c | 460 | { |
52f0bd74 | 461 | struct cmd_list_element *c; |
95a6b0a1 TT |
462 | const char *line; |
463 | const char *cmd_start = p; | |
4e5d721f | 464 | |
694c6bf5 | 465 | auto cleanup_if_error = make_scope_exit (bpstat_clear_actions); |
54f70bc1 | 466 | scoped_value_mark cleanup = prepare_execute_command (); |
c906108c | 467 | |
d318976c FN |
468 | /* This can happen when command_line_input hits end of file. */ |
469 | if (p == NULL) | |
5fe41fbf | 470 | { |
694c6bf5 | 471 | cleanup_if_error.release (); |
5fe41fbf TT |
472 | return; |
473 | } | |
c906108c | 474 | |
b69378ce JV |
475 | std::string cmd_copy = p; |
476 | ||
49d03eab | 477 | target_log_command (p); |
8b93c638 | 478 | |
d318976c FN |
479 | while (*p == ' ' || *p == '\t') |
480 | p++; | |
481 | if (*p) | |
8b93c638 | 482 | { |
6f937416 | 483 | const char *cmd = p; |
95a6b0a1 | 484 | const char *arg; |
cf00cd6f PW |
485 | std::string default_args; |
486 | std::string default_args_and_arg; | |
3b12939d | 487 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 488 | |
d318976c | 489 | line = p; |
8b93c638 | 490 | |
16026cd7 | 491 | /* If trace-commands is set then this will print this command. */ |
1263a9d5 | 492 | print_command_trace ("%s", p); |
16026cd7 | 493 | |
cf00cd6f | 494 | c = lookup_cmd (&cmd, cmdlist, "", &default_args, 0, 1); |
95a6b0a1 | 495 | p = cmd; |
8b93c638 | 496 | |
85c4be7c TT |
497 | scoped_restore save_repeat_args |
498 | = make_scoped_restore (&repeat_arguments, nullptr); | |
95a6b0a1 | 499 | const char *args_pointer = p; |
85c4be7c | 500 | |
cf00cd6f PW |
501 | if (!default_args.empty ()) |
502 | { | |
503 | if (*p != '\0') | |
504 | default_args_and_arg = default_args + ' ' + p; | |
505 | else | |
506 | default_args_and_arg = default_args; | |
507 | arg = default_args_and_arg.c_str (); | |
508 | } | |
509 | else | |
510 | { | |
511 | /* Pass null arg rather than an empty one. */ | |
512 | arg = *p == '\0' ? nullptr : p; | |
513 | } | |
8b93c638 | 514 | |
9f60d481 | 515 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
dda83cd7 SM |
516 | while the is_complete_command(cfunc) test is just plain |
517 | bogus. They should both be replaced by a test of the form | |
518 | c->strip_trailing_white_space_p. */ | |
9f60d481 | 519 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below |
dda83cd7 SM |
520 | can't be replaced with func. This is because it is the |
521 | cfunc, and not the func, that has the value that the | |
522 | is_complete_command hack is testing for. */ | |
9f60d481 | 523 | /* Clear off trailing whitespace, except for set and complete |
dda83cd7 | 524 | command. */ |
95a6b0a1 | 525 | std::string without_whitespace; |
d318976c FN |
526 | if (arg |
527 | && c->type != set_cmd | |
bbaca940 | 528 | && !is_complete_command (c)) |
8b93c638 | 529 | { |
95a6b0a1 TT |
530 | const char *old_end = arg + strlen (arg) - 1; |
531 | p = old_end; | |
d318976c FN |
532 | while (p >= arg && (*p == ' ' || *p == '\t')) |
533 | p--; | |
95a6b0a1 TT |
534 | if (p != old_end) |
535 | { | |
536 | without_whitespace = std::string (arg, p + 1); | |
537 | arg = without_whitespace.c_str (); | |
538 | } | |
8b93c638 JM |
539 | } |
540 | ||
371d5dec | 541 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 542 | execute_cmd_pre_hook (c); |
c906108c | 543 | |
1f2bdf09 | 544 | if (c->deprecated_warn_user) |
9ef6d4a1 | 545 | deprecated_cmd_warning (line, cmdlist); |
c906108c | 546 | |
7d74f244 | 547 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 548 | if (c->theclass == class_user && c->user_commands) |
d318976c | 549 | execute_user_command (c, arg); |
c6ac7fc9 | 550 | else if (c->theclass == class_user |
3d0b3564 | 551 | && c->is_prefix () && !c->allow_unknown) |
c6ac7fc9 PW |
552 | /* If this is a user defined prefix that does not allow unknown |
553 | (in other words, C is a prefix command and not a command | |
554 | that can be followed by its args), report the list of | |
555 | subcommands. */ | |
556 | { | |
2f822da5 | 557 | std::string prefixname = c->prefixname (); |
287de656 | 558 | std::string prefixname_no_space |
2f822da5 | 559 | = prefixname.substr (0, prefixname.length () - 1); |
6cb06a8c | 560 | gdb_printf |
2f822da5 MB |
561 | ("\"%s\" must be followed by the name of a subcommand.\n", |
562 | prefixname_no_space.c_str ()); | |
14b42fc4 | 563 | help_list (*c->subcommands, prefixname.c_str (), all_commands, |
2f822da5 | 564 | gdb_stdout); |
c6ac7fc9 | 565 | } |
5b9afe8a YQ |
566 | else if (c->type == set_cmd) |
567 | do_set_command (arg, from_tty, c); | |
568 | else if (c->type == show_cmd) | |
569 | do_show_command (arg, from_tty, c); | |
034dce7a | 570 | else if (c->is_command_class_help ()) |
8a3fe4f8 | 571 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 572 | else if (deprecated_call_command_hook) |
050a2e1d | 573 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 574 | else |
050a2e1d | 575 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 576 | |
98880d46 | 577 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 578 | |
b5661ff2 JV |
579 | /* If this command has been post-hooked, run the hook last. |
580 | We need to lookup the command again since during its execution, | |
581 | a command may redefine itself. In this case, C pointer | |
582 | becomes invalid so we need to look it up again. */ | |
b69378ce | 583 | const char *cmd2 = cmd_copy.c_str (); |
37e5833d | 584 | c = lookup_cmd (&cmd2, cmdlist, "", nullptr, 1, 1); |
b5661ff2 JV |
585 | if (c != nullptr) |
586 | execute_cmd_post_hook (c); | |
c906108c | 587 | |
95a6b0a1 | 588 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
589 | { |
590 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
591 | strcpy (saved_command_line + (args_pointer - cmd_start), |
592 | repeat_arguments); | |
85c4be7c | 593 | } |
c906108c SS |
594 | } |
595 | ||
0ca1fc29 JB |
596 | /* Only perform the frame-language-change check if the command |
597 | we just finished executing did not resume the inferior's execution. | |
598 | If it did resume the inferior, we will do that check after | |
599 | the inferior stopped. */ | |
00431a78 | 600 | if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING) |
0ca1fc29 | 601 | check_frame_language_change (); |
028d0ed5 | 602 | |
694c6bf5 | 603 | cleanup_if_error.release (); |
c906108c SS |
604 | } |
605 | ||
86fe51fc | 606 | /* See gdbcmd.h. */ |
5da1313b | 607 | |
b8fd0918 | 608 | void |
86fe51fc | 609 | execute_fn_to_ui_file (struct ui_file *file, std::function<void(void)> fn) |
5da1313b | 610 | { |
5da1313b JK |
611 | /* GDB_STDOUT should be better already restored during these |
612 | restoration callbacks. */ | |
b95de2b7 | 613 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 614 | |
b7b633e9 | 615 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 616 | |
ca5909c7 | 617 | { |
992aeed8 | 618 | ui_out_redirect_pop redirect_popper (current_uiout, file); |
ca5909c7 TT |
619 | |
620 | scoped_restore save_stdout | |
b8fd0918 | 621 | = make_scoped_restore (&gdb_stdout, file); |
ca5909c7 | 622 | scoped_restore save_stderr |
b8fd0918 | 623 | = make_scoped_restore (&gdb_stderr, file); |
ca5909c7 | 624 | scoped_restore save_stdlog |
b8fd0918 | 625 | = make_scoped_restore (&gdb_stdlog, file); |
ca5909c7 | 626 | scoped_restore save_stdtarg |
b8fd0918 | 627 | = make_scoped_restore (&gdb_stdtarg, file); |
ca5909c7 | 628 | scoped_restore save_stdtargerr |
b8fd0918 | 629 | = make_scoped_restore (&gdb_stdtargerr, file); |
ca5909c7 | 630 | |
86fe51fc | 631 | fn (); |
ca5909c7 | 632 | } |
b8fd0918 PW |
633 | } |
634 | ||
24cf6389 | 635 | /* See gdbcmd.h. */ |
b8fd0918 | 636 | |
84a6adfd TV |
637 | void |
638 | execute_fn_to_string (std::string &res, std::function<void(void)> fn, | |
639 | bool term_out) | |
b8fd0918 PW |
640 | { |
641 | string_file str_file (term_out); | |
5da1313b | 642 | |
84a6adfd TV |
643 | try |
644 | { | |
645 | execute_fn_to_ui_file (&str_file, fn); | |
646 | } | |
647 | catch (...) | |
648 | { | |
649 | /* Finally. */ | |
01285426 | 650 | res = str_file.release (); |
84a6adfd TV |
651 | throw; |
652 | } | |
653 | ||
654 | /* And finally. */ | |
01285426 | 655 | res = str_file.release (); |
5da1313b JK |
656 | } |
657 | ||
86fe51fc TV |
658 | /* See gdbcmd.h. */ |
659 | ||
660 | void | |
661 | execute_command_to_ui_file (struct ui_file *file, | |
662 | const char *p, int from_tty) | |
663 | { | |
664 | execute_fn_to_ui_file (file, [=]() { execute_command (p, from_tty); }); | |
665 | } | |
666 | ||
667 | /* See gdbcmd.h. */ | |
668 | ||
84a6adfd TV |
669 | void |
670 | execute_command_to_string (std::string &res, const char *p, int from_tty, | |
671 | bool term_out) | |
672 | { | |
673 | execute_fn_to_string (res, [=]() { execute_command (p, from_tty); }, | |
674 | term_out); | |
675 | } | |
676 | ||
677 | /* See gdbcmd.h. */ | |
678 | ||
679 | void | |
86fe51fc TV |
680 | execute_command_to_string (const char *p, int from_tty, |
681 | bool term_out) | |
682 | { | |
84a6adfd TV |
683 | std::string dummy; |
684 | execute_fn_to_string (dummy, [=]() { execute_command (p, from_tty); }, | |
685 | term_out); | |
86fe51fc | 686 | } |
d318976c | 687 | \f |
47a80e90 TT |
688 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
689 | set via prevent_dont_repeat. */ | |
690 | ||
691 | static int suppress_dont_repeat = 0; | |
692 | ||
68bb5386 | 693 | /* See command.h */ |
9e0b60a8 | 694 | |
d318976c FN |
695 | void |
696 | dont_repeat (void) | |
9e0b60a8 | 697 | { |
f38d3ad1 PA |
698 | struct ui *ui = current_ui; |
699 | ||
47a80e90 | 700 | if (suppress_dont_repeat || server_command) |
d318976c | 701 | return; |
9e0b60a8 | 702 | |
d318976c | 703 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
704 | thing read from stdin in line and don't want to delete it. Null |
705 | lines won't repeat here in any case. */ | |
268a799a | 706 | if (ui->instream == ui->stdin_stream) |
68bb5386 PW |
707 | { |
708 | *saved_command_line = 0; | |
709 | repeat_arguments = NULL; | |
710 | } | |
711 | } | |
712 | ||
713 | /* See command.h */ | |
714 | ||
fdbc9870 | 715 | const char * |
68bb5386 PW |
716 | repeat_previous () |
717 | { | |
718 | /* Do not repeat this command, as this command is a repeating command. */ | |
719 | dont_repeat (); | |
720 | ||
721 | /* We cannot free saved_command_line, as this line is being executed, | |
722 | so swap it with previous_saved_command_line. */ | |
723 | std::swap (previous_saved_command_line, saved_command_line); | |
724 | std::swap (previous_repeat_arguments, repeat_arguments); | |
fdbc9870 PA |
725 | |
726 | const char *prev = skip_spaces (get_saved_command_line ()); | |
727 | if (*prev == '\0') | |
728 | error (_("No previous command to relaunch")); | |
729 | return prev; | |
9e0b60a8 | 730 | } |
47a80e90 | 731 | |
68bb5386 | 732 | /* See command.h. */ |
47a80e90 | 733 | |
1ac32117 | 734 | scoped_restore_tmpl<int> |
47a80e90 TT |
735 | prevent_dont_repeat (void) |
736 | { | |
1ac32117 | 737 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
738 | } |
739 | ||
68bb5386 PW |
740 | /* See command.h. */ |
741 | ||
742 | char * | |
743 | get_saved_command_line () | |
744 | { | |
745 | return saved_command_line; | |
746 | } | |
747 | ||
748 | /* See command.h. */ | |
749 | ||
750 | void | |
751 | save_command_line (const char *cmd) | |
752 | { | |
753 | xfree (previous_saved_command_line); | |
754 | previous_saved_command_line = saved_command_line; | |
755 | previous_repeat_arguments = repeat_arguments; | |
756 | saved_command_line = xstrdup (cmd); | |
757 | repeat_arguments = NULL; | |
758 | } | |
759 | ||
d318976c FN |
760 | \f |
761 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 762 | |
7a3bde34 | 763 | It prints PROMPT once at the start. |
d318976c FN |
764 | Action is compatible with "readline", e.g. space for the result is |
765 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 766 | |
d318976c | 767 | A NULL return means end of file. */ |
c5c136ea | 768 | |
1293ecd8 | 769 | static gdb::unique_xmalloc_ptr<char> |
7a3bde34 | 770 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 771 | { |
1293ecd8 | 772 | std::string line_buffer; |
f38d3ad1 | 773 | struct ui *ui = current_ui; |
3212b858 PA |
774 | /* Read from stdin if we are executing a user defined command. This |
775 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 776 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 777 | int fd = fileno (stream); |
9e0b60a8 | 778 | |
7a3bde34 | 779 | if (prompt != NULL) |
9e0b60a8 | 780 | { |
d318976c | 781 | /* Don't use a _filtered function here. It causes the assumed |
dda83cd7 SM |
782 | character position to be off, since the newline we read from |
783 | the user is not accounted for. */ | |
dcf1a2c8 | 784 | printf_unfiltered ("%s", prompt); |
9e0b60a8 JM |
785 | gdb_flush (gdb_stdout); |
786 | } | |
787 | ||
9e0b60a8 JM |
788 | while (1) |
789 | { | |
7a3bde34 | 790 | int c; |
3212b858 | 791 | fd_set readfds; |
7a3bde34 | 792 | |
3212b858 PA |
793 | QUIT; |
794 | ||
795 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 796 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
797 | FD_ZERO (&readfds); |
798 | FD_SET (fd, &readfds); | |
f0881b37 | 799 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
800 | { |
801 | if (errno == EINTR) | |
802 | { | |
803 | /* If this was ctrl-c, the QUIT above handles it. */ | |
804 | continue; | |
805 | } | |
806 | perror_with_name (("select")); | |
807 | } | |
808 | ||
809 | c = fgetc (stream); | |
9e0b60a8 | 810 | |
d318976c | 811 | if (c == EOF) |
9e0b60a8 | 812 | { |
1293ecd8 | 813 | if (!line_buffer.empty ()) |
d318976c FN |
814 | /* The last line does not end with a newline. Return it, and |
815 | if we are called again fgetc will still return EOF and | |
816 | we'll return NULL then. */ | |
9e0b60a8 | 817 | break; |
d318976c | 818 | return NULL; |
9e0b60a8 | 819 | } |
c5aa993b | 820 | |
d318976c | 821 | if (c == '\n') |
9e0b60a8 | 822 | { |
1293ecd8 TT |
823 | if (!line_buffer.empty () && line_buffer.back () == '\r') |
824 | line_buffer.pop_back (); | |
d318976c | 825 | break; |
9e0b60a8 | 826 | } |
9e0b60a8 | 827 | |
1293ecd8 | 828 | line_buffer += c; |
9e0b60a8 JM |
829 | } |
830 | ||
1293ecd8 | 831 | return make_unique_xstrdup (line_buffer.c_str ()); |
9e0b60a8 JM |
832 | } |
833 | ||
d318976c FN |
834 | /* Variables which control command line editing and history |
835 | substitution. These variables are given default values at the end | |
836 | of this file. */ | |
491144b5 | 837 | static bool command_editing_p; |
920d2a44 | 838 | |
d318976c FN |
839 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
840 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 841 | event-top.c into this file, top.c. */ |
920d2a44 | 842 | |
491144b5 | 843 | /* static */ bool history_expansion_p; |
920d2a44 | 844 | |
63e163f2 AB |
845 | /* Should we write out the command history on exit? In order to write out |
846 | the history both this flag must be true, and the history_filename | |
847 | variable must be set to something sensible. */ | |
491144b5 | 848 | static bool write_history_p; |
63e163f2 | 849 | |
e0700ba4 SM |
850 | /* The name of the file in which GDB history will be written. If this is |
851 | set to NULL, of the empty string then history will not be written. */ | |
852 | static std::string history_filename; | |
853 | ||
63e163f2 | 854 | /* Implement 'show history save'. */ |
920d2a44 AC |
855 | static void |
856 | show_write_history_p (struct ui_file *file, int from_tty, | |
857 | struct cmd_list_element *c, const char *value) | |
858 | { | |
e0700ba4 | 859 | if (!write_history_p || !history_filename.empty ()) |
6cb06a8c TT |
860 | gdb_printf (file, _("Saving of the history record on exit is %s.\n"), |
861 | value); | |
63e163f2 | 862 | else |
6cb06a8c TT |
863 | gdb_printf (file, _("Saving of the history is disabled due to " |
864 | "the value of 'history filename'.\n")); | |
920d2a44 AC |
865 | } |
866 | ||
840a9a1f | 867 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
868 | command. The value -1 means unlimited, and -2 means undefined. */ |
869 | static int history_size_setshow_var = -2; | |
840a9a1f | 870 | |
920d2a44 AC |
871 | static void |
872 | show_history_size (struct ui_file *file, int from_tty, | |
873 | struct cmd_list_element *c, const char *value) | |
874 | { | |
6cb06a8c TT |
875 | gdb_printf (file, _("The size of the command history is %s.\n"), |
876 | value); | |
920d2a44 AC |
877 | } |
878 | ||
fc637f04 PP |
879 | /* Variable associated with the "history remove-duplicates" option. |
880 | The value -1 means unlimited. */ | |
881 | static int history_remove_duplicates = 0; | |
882 | ||
883 | static void | |
884 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
885 | struct cmd_list_element *c, const char *value) | |
886 | { | |
6cb06a8c TT |
887 | gdb_printf (file, |
888 | _("The number of history entries to look back at for " | |
889 | "duplicates is %s.\n"), | |
890 | value); | |
fc637f04 PP |
891 | } |
892 | ||
63e163f2 | 893 | /* Implement 'show history filename'. */ |
920d2a44 AC |
894 | static void |
895 | show_history_filename (struct ui_file *file, int from_tty, | |
896 | struct cmd_list_element *c, const char *value) | |
897 | { | |
e0700ba4 | 898 | if (!history_filename.empty ()) |
6cb06a8c TT |
899 | gdb_printf (file, _("The filename in which to record " |
900 | "the command history is \"%ps\".\n"), | |
901 | styled_string (file_name_style.style (), value)); | |
63e163f2 | 902 | else |
6cb06a8c TT |
903 | gdb_printf (file, _("There is no filename currently set for " |
904 | "recording the command history in.\n")); | |
920d2a44 | 905 | } |
9e0b60a8 | 906 | |
b4f5539f | 907 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 908 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
909 | a single gdb invocation. At the ordinary top-level prompt we might |
910 | be using the async readline. That means we can't use | |
911 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
912 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
913 | `define'), gdb wants a synchronous response. |
914 | ||
915 | We used to call readline() directly, running it in synchronous | |
916 | mode. But mixing modes this way is not supported, and as of | |
917 | readline 5.x it no longer works; the arrow keys come unbound during | |
918 | the synchronous call. So we make a nested call into the event | |
919 | loop. That's what gdb_readline_wrapper is for. */ | |
920 | ||
921 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
922 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
923 | the user types Control-D for EOF. */ | |
924 | static int gdb_readline_wrapper_done; | |
925 | ||
926 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
927 | is seen. */ | |
928 | static char *gdb_readline_wrapper_result; | |
929 | ||
930 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
931 | to be called after the newline is processed (which will redisplay | |
932 | the prompt). But in gdb_readline_wrapper we will not get a new | |
933 | prompt until the next call, or until we return to the event loop. | |
934 | So we disable this hook around the newline and restore it before we | |
935 | return. */ | |
936 | static void (*saved_after_char_processing_hook) (void); | |
937 | ||
948578a9 | 938 | |
948578a9 PP |
939 | /* See top.h. */ |
940 | ||
941 | int | |
dbf30ca3 | 942 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 943 | { |
dbf30ca3 | 944 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
945 | } |
946 | ||
947 | ||
2e03ee74 DJ |
948 | /* This function is called when readline has seen a complete line of |
949 | text. */ | |
950 | ||
951 | static void | |
95bc9f0b | 952 | gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line) |
2e03ee74 DJ |
953 | { |
954 | gdb_assert (!gdb_readline_wrapper_done); | |
95bc9f0b | 955 | gdb_readline_wrapper_result = line.release (); |
2e03ee74 DJ |
956 | gdb_readline_wrapper_done = 1; |
957 | ||
958 | /* Prevent operate-and-get-next from acting too early. */ | |
959 | saved_after_char_processing_hook = after_char_processing_hook; | |
960 | after_char_processing_hook = NULL; | |
1b05479a | 961 | |
87c9b028 TV |
962 | #if defined(TUI) |
963 | if (tui_active) | |
964 | tui_inject_newline_into_command_window (); | |
965 | #endif | |
966 | ||
1b05479a | 967 | /* Prevent parts of the prompt from being redisplayed if annotations |
0017922d | 968 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
969 | reinstall the callback handler, which puts the terminal in raw |
970 | mode (or in readline lingo, in prepped state), when we're next | |
971 | ready to process user input, either in display_gdb_prompt, or if | |
972 | we're handling an asynchronous target event and running in the | |
973 | background, just before returning to the event loop to process | |
974 | further input (or more target events). */ | |
3c216924 | 975 | if (current_ui->command_editing) |
d3d4baed | 976 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
977 | } |
978 | ||
1dbeed45 | 979 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 980 | { |
1dbeed45 TT |
981 | public: |
982 | gdb_readline_wrapper_cleanup () | |
983 | : m_handler_orig (current_ui->input_handler), | |
984 | m_already_prompted_orig (current_ui->command_editing | |
985 | ? rl_already_prompted : 0), | |
986 | m_target_is_async_orig (target_is_async_p ()), | |
987 | m_save_ui (¤t_ui) | |
988 | { | |
989 | current_ui->input_handler = gdb_readline_wrapper_line; | |
990 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 991 | |
1dbeed45 | 992 | if (m_target_is_async_orig) |
4a570176 | 993 | target_async (false); |
1dbeed45 | 994 | } |
2e03ee74 | 995 | |
1dbeed45 TT |
996 | ~gdb_readline_wrapper_cleanup () |
997 | { | |
998 | struct ui *ui = current_ui; | |
0017922d | 999 | |
1dbeed45 TT |
1000 | if (ui->command_editing) |
1001 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 1002 | |
1dbeed45 TT |
1003 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
1004 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 1005 | |
1dbeed45 TT |
1006 | /* Don't restore our input handler in readline yet. That would make |
1007 | readline prep the terminal (putting it in raw mode), while the | |
1008 | line we just read may trigger execution of a command that expects | |
1009 | the terminal in the default cooked/canonical mode, such as e.g., | |
1010 | running Python's interactive online help utility. See | |
1011 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 1012 | |
1dbeed45 TT |
1013 | gdb_readline_wrapper_result = NULL; |
1014 | gdb_readline_wrapper_done = 0; | |
1015 | ui->secondary_prompt_depth--; | |
1016 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 1017 | |
1dbeed45 TT |
1018 | after_char_processing_hook = saved_after_char_processing_hook; |
1019 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 1020 | |
1dbeed45 | 1021 | if (m_target_is_async_orig) |
4a570176 | 1022 | target_async (true); |
1dbeed45 | 1023 | } |
2e03ee74 | 1024 | |
1dbeed45 | 1025 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 1026 | |
1dbeed45 | 1027 | private: |
2e03ee74 | 1028 | |
95bc9f0b | 1029 | void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&); |
1dbeed45 | 1030 | int m_already_prompted_orig; |
93d6eb10 | 1031 | |
1dbeed45 TT |
1032 | /* Whether the target was async. */ |
1033 | int m_target_is_async_orig; | |
2e03ee74 | 1034 | |
4295e285 | 1035 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
1036 | scoped_restore_tmpl<struct ui *> m_save_ui; |
1037 | }; | |
1038 | ||
1039 | char * | |
1040 | gdb_readline_wrapper (const char *prompt) | |
1041 | { | |
1042 | struct ui *ui = current_ui; | |
4295e285 | 1043 | |
1dbeed45 | 1044 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 1045 | |
6e5d74e7 PA |
1046 | /* Display our prompt and prevent double prompt display. Don't pass |
1047 | down a NULL prompt, since that has special meaning for | |
1048 | display_gdb_prompt -- it indicates a request to print the primary | |
1049 | prompt, while we want a secondary prompt here. */ | |
1050 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1051 | if (ui->command_editing) |
1052 | rl_already_prompted = 1; | |
2e03ee74 | 1053 | |
362646f5 | 1054 | if (after_char_processing_hook) |
2e03ee74 DJ |
1055 | (*after_char_processing_hook) (); |
1056 | gdb_assert (after_char_processing_hook == NULL); | |
1057 | ||
e0dd0826 | 1058 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1059 | if (gdb_readline_wrapper_done) |
1060 | break; | |
b4f5539f | 1061 | |
1dbeed45 | 1062 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1063 | } |
1064 | ||
9e0b60a8 | 1065 | \f |
467d8519 TT |
1066 | /* The current saved history number from operate-and-get-next. |
1067 | This is -1 if not valid. */ | |
1068 | static int operate_saved_history = -1; | |
1069 | ||
1070 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1071 | do its work. */ | |
b9362cc7 | 1072 | static void |
5ae5f592 | 1073 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1074 | { |
1075 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1076 | |
467d8519 TT |
1077 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1078 | rl_get_previous_history (delta, 0); | |
1079 | operate_saved_history = -1; | |
1080 | ||
1081 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1082 | rl_redisplay (); |
467d8519 TT |
1083 | |
1084 | after_char_processing_hook = NULL; | |
1085 | rl_pre_input_hook = NULL; | |
1086 | } | |
1087 | ||
1088 | /* This is a gdb-local readline command handler. It accepts the | |
1089 | current command line (like RET does) and, if this command was taken | |
1090 | from the history, arranges for the next command in the history to | |
1091 | appear on the command line when the prompt returns. | |
1092 | We ignore the arguments. */ | |
1093 | static int | |
1094 | gdb_rl_operate_and_get_next (int count, int key) | |
1095 | { | |
b5686e99 MK |
1096 | int where; |
1097 | ||
362646f5 AC |
1098 | /* Use the async hook. */ |
1099 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1100 | |
b5686e99 MK |
1101 | /* Find the current line, and find the next line to use. */ |
1102 | where = where_history(); | |
1103 | ||
1fb2e2b5 PA |
1104 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1105 | || (where >= history_length - 1)) | |
b5686e99 MK |
1106 | operate_saved_history = where; |
1107 | else | |
1108 | operate_saved_history = where + 1; | |
1109 | ||
467d8519 TT |
1110 | return rl_newline (1, key); |
1111 | } | |
08b13bdd PP |
1112 | |
1113 | /* Number of user commands executed during this session. */ | |
1114 | ||
1115 | static int command_count = 0; | |
1116 | ||
1117 | /* Add the user command COMMAND to the input history list. */ | |
1118 | ||
1119 | void | |
1120 | gdb_add_history (const char *command) | |
1121 | { | |
08b13bdd | 1122 | command_count++; |
fc637f04 PP |
1123 | |
1124 | if (history_remove_duplicates != 0) | |
1125 | { | |
1126 | int lookbehind; | |
1127 | int lookbehind_threshold; | |
1128 | ||
1129 | /* The lookbehind threshold for finding a duplicate history entry is | |
1130 | bounded by command_count because we can't meaningfully delete | |
1131 | history entries that are already stored in the history file since | |
1132 | the history file is appended to. */ | |
1133 | if (history_remove_duplicates == -1 | |
1134 | || history_remove_duplicates > command_count) | |
1135 | lookbehind_threshold = command_count; | |
1136 | else | |
1137 | lookbehind_threshold = history_remove_duplicates; | |
1138 | ||
1139 | using_history (); | |
1140 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1141 | { | |
1142 | HIST_ENTRY *temp = previous_history (); | |
1143 | ||
1144 | if (temp == NULL) | |
1145 | break; | |
1146 | ||
1147 | if (strcmp (temp->line, command) == 0) | |
1148 | { | |
1149 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1150 | command_count--; | |
1151 | free_history_entry (prev); | |
1152 | break; | |
1153 | } | |
1154 | } | |
1155 | using_history (); | |
1156 | } | |
1157 | ||
1158 | add_history (command); | |
08b13bdd PP |
1159 | } |
1160 | ||
1161 | /* Safely append new history entries to the history file in a corruption-free | |
1162 | way using an intermediate local history file. */ | |
1163 | ||
1164 | static void | |
1165 | gdb_safe_append_history (void) | |
1166 | { | |
1167 | int ret, saved_errno; | |
08b13bdd | 1168 | |
8cff8730 | 1169 | std::string local_history_filename |
e0700ba4 | 1170 | = string_printf ("%s-gdb%ld~", history_filename.c_str (), (long) getpid ()); |
08b13bdd | 1171 | |
e0700ba4 | 1172 | ret = rename (history_filename.c_str (), local_history_filename.c_str ()); |
08b13bdd PP |
1173 | saved_errno = errno; |
1174 | if (ret < 0 && saved_errno != ENOENT) | |
1175 | { | |
6ec1d75e | 1176 | warning (_("Could not rename %ps to %ps: %s"), |
e0700ba4 SM |
1177 | styled_string (file_name_style.style (), |
1178 | history_filename.c_str ()), | |
6ec1d75e PW |
1179 | styled_string (file_name_style.style (), |
1180 | local_history_filename.c_str ()), | |
08b13bdd PP |
1181 | safe_strerror (saved_errno)); |
1182 | } | |
1183 | else | |
1184 | { | |
1185 | if (ret < 0) | |
1186 | { | |
1187 | /* If the rename failed with ENOENT then either the global history | |
1188 | file never existed in the first place or another GDB process is | |
1189 | currently appending to it (and has thus temporarily renamed it). | |
1190 | Since we can't distinguish between these two cases, we have to | |
1191 | conservatively assume the first case and therefore must write out | |
1192 | (not append) our known history to our local history file and try | |
1193 | to move it back anyway. Otherwise a global history file would | |
1194 | never get created! */ | |
1195 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1196 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1197 | } |
1198 | else | |
1199 | { | |
8cff8730 | 1200 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1201 | if (history_is_stifled ()) |
8cff8730 TT |
1202 | history_truncate_file (local_history_filename.c_str (), |
1203 | history_max_entries); | |
08b13bdd PP |
1204 | } |
1205 | ||
e0700ba4 | 1206 | ret = rename (local_history_filename.c_str (), history_filename.c_str ()); |
08b13bdd PP |
1207 | saved_errno = errno; |
1208 | if (ret < 0 && saved_errno != EEXIST) | |
dda83cd7 | 1209 | warning (_("Could not rename %s to %s: %s"), |
e0700ba4 | 1210 | local_history_filename.c_str (), history_filename.c_str (), |
08b13bdd PP |
1211 | safe_strerror (saved_errno)); |
1212 | } | |
08b13bdd PP |
1213 | } |
1214 | ||
f8631e5e SM |
1215 | /* Read one line from the command input stream `instream'. |
1216 | ||
1217 | CMD_LINE_BUFFER is a buffer that the function may use to store the result, if | |
1218 | it needs to be dynamically-allocated. Otherwise, it is unused.string | |
9e0b60a8 | 1219 | |
f8631e5e | 1220 | Return nullptr for end of file. |
9e0b60a8 | 1221 | |
b69d38af PA |
1222 | This routine either uses fancy command line editing or simple input |
1223 | as the user has requested. */ | |
10689f25 | 1224 | |
992a7040 | 1225 | const char * |
f8631e5e SM |
1226 | command_line_input (std::string &cmd_line_buffer, const char *prompt_arg, |
1227 | const char *annotation_suffix) | |
9e0b60a8 | 1228 | { |
f38d3ad1 | 1229 | struct ui *ui = current_ui; |
38bcc89d | 1230 | const char *prompt = prompt_arg; |
f8631e5e | 1231 | const char *cmd; |
268a799a | 1232 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1233 | |
1234 | /* The annotation suffix must be non-NULL. */ | |
1235 | if (annotation_suffix == NULL) | |
1236 | annotation_suffix = ""; | |
9e0b60a8 | 1237 | |
268a799a | 1238 | if (from_tty && annotation_level > 1) |
d318976c | 1239 | { |
38bcc89d SM |
1240 | char *local_prompt; |
1241 | ||
224c3ddb SM |
1242 | local_prompt |
1243 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1244 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1245 | if (prompt == NULL) |
d318976c FN |
1246 | local_prompt[0] = '\0'; |
1247 | else | |
38bcc89d | 1248 | strcpy (local_prompt, prompt); |
d318976c FN |
1249 | strcat (local_prompt, "\n\032\032"); |
1250 | strcat (local_prompt, annotation_suffix); | |
1251 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1252 | |
1253 | prompt = local_prompt; | |
d318976c | 1254 | } |
9e0b60a8 | 1255 | |
6aa899ce | 1256 | #ifdef SIGTSTP |
d318976c | 1257 | if (job_control) |
6aa899ce | 1258 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1259 | #endif |
1260 | ||
1261 | while (1) | |
9e0b60a8 | 1262 | { |
2139e8dc | 1263 | gdb::unique_xmalloc_ptr<char> rl; |
b69d38af | 1264 | |
371d5dec | 1265 | /* Make sure that all output has been output. Some machines may |
dda83cd7 SM |
1266 | let you get away with leaving out some of the gdb_flush, but |
1267 | not all. */ | |
d318976c FN |
1268 | gdb_flush (gdb_stdout); |
1269 | gdb_flush (gdb_stderr); | |
1270 | ||
6caa91b6 | 1271 | if (!source_file_name.empty ()) |
637537d0 | 1272 | ++source_line_number; |
d318976c | 1273 | |
268a799a | 1274 | if (from_tty && annotation_level > 1) |
dcf1a2c8 | 1275 | printf_unfiltered ("\n\032\032pre-%s\n", annotation_suffix); |
d318976c FN |
1276 | |
1277 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1278 | if (deprecated_readline_hook |
1279 | && from_tty | |
efd3baf0 | 1280 | && current_ui->input_interactive_p ()) |
d318976c | 1281 | { |
2139e8dc | 1282 | rl.reset ((*deprecated_readline_hook) (prompt)); |
d318976c | 1283 | } |
268a799a PA |
1284 | else if (command_editing_p |
1285 | && from_tty | |
efd3baf0 | 1286 | && current_ui->input_interactive_p ()) |
d318976c | 1287 | { |
2139e8dc | 1288 | rl.reset (gdb_readline_wrapper (prompt)); |
d318976c | 1289 | } |
9e0b60a8 | 1290 | else |
d318976c | 1291 | { |
1293ecd8 | 1292 | rl = gdb_readline_no_editing (prompt); |
d318976c | 1293 | } |
9e0b60a8 | 1294 | |
f8631e5e | 1295 | cmd = handle_line_of_input (cmd_line_buffer, rl.get (), |
89fbedf3 | 1296 | 0, annotation_suffix); |
b69d38af | 1297 | if (cmd == (char *) EOF) |
d318976c | 1298 | { |
b69d38af | 1299 | cmd = NULL; |
d318976c | 1300 | break; |
9e0b60a8 | 1301 | } |
b69d38af | 1302 | if (cmd != NULL) |
d318976c | 1303 | break; |
9e0b60a8 | 1304 | |
6e5d74e7 PA |
1305 | /* Got partial input. I.e., got a line that ends with a |
1306 | continuation character (backslash). Suppress printing the | |
1307 | prompt again. */ | |
38bcc89d | 1308 | prompt = NULL; |
d318976c | 1309 | } |
9e0b60a8 | 1310 | |
6aa899ce | 1311 | #ifdef SIGTSTP |
d318976c | 1312 | if (job_control) |
6aa899ce | 1313 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1314 | #endif |
9e0b60a8 | 1315 | |
b69d38af | 1316 | return cmd; |
9e0b60a8 JM |
1317 | } |
1318 | \f | |
c61b06a1 | 1319 | /* See top.h. */ |
9e0b60a8 | 1320 | void |
c61b06a1 | 1321 | print_gdb_version (struct ui_file *stream, bool interactive) |
9e0b60a8 JM |
1322 | { |
1323 | /* From GNU coding standards, first line is meant to be easy for a | |
1324 | program to parse, and is just canonical program name and version | |
371d5dec | 1325 | number, which starts after last space. */ |
9e0b60a8 | 1326 | |
9d2d8a16 | 1327 | std::string v_str = string_printf ("GNU gdb %s%s", PKGVERSION, version); |
6cb06a8c TT |
1328 | gdb_printf (stream, "%ps\n", |
1329 | styled_string (version_style.style (), v_str.c_str ())); | |
9e0b60a8 | 1330 | |
371d5dec | 1331 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1332 | |
6cb06a8c | 1333 | gdb_printf (stream, |
1d506c26 | 1334 | "Copyright (C) 2024 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1335 | |
1336 | /* Following the copyright is a brief statement that the program is | |
1337 | free software, that users are free to copy and change it on | |
1338 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1339 | there is no warranty. */ |
9e0b60a8 | 1340 | |
6cb06a8c | 1341 | gdb_printf (stream, "\ |
8839e3f3 | 1342 | License GPLv3+: GNU GPL version 3 or later <%ps>\ |
3e43a32a | 1343 | \nThis is free software: you are free to change and redistribute it.\n\ |
8839e3f3 TT |
1344 | There is NO WARRANTY, to the extent permitted by law.", |
1345 | styled_string (file_name_style.style (), | |
1346 | "http://gnu.org/licenses/gpl.html")); | |
c61b06a1 TT |
1347 | |
1348 | if (!interactive) | |
1349 | return; | |
1350 | ||
6cb06a8c TT |
1351 | gdb_printf (stream, ("\nType \"show copying\" and " |
1352 | "\"show warranty\" for details.\n")); | |
9e0b60a8 | 1353 | |
371d5dec | 1354 | /* After the required info we print the configuration information. */ |
9e0b60a8 | 1355 | |
6cb06a8c | 1356 | gdb_printf (stream, "This GDB was configured as \""); |
6314a349 | 1357 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1358 | { |
6cb06a8c TT |
1359 | gdb_printf (stream, "--host=%s --target=%s", |
1360 | host_name, target_name); | |
9e0b60a8 JM |
1361 | } |
1362 | else | |
1363 | { | |
6cb06a8c | 1364 | gdb_printf (stream, "%s", host_name); |
9e0b60a8 | 1365 | } |
6cb06a8c | 1366 | gdb_printf (stream, "\".\n"); |
c61b06a1 | 1367 | |
6cb06a8c TT |
1368 | gdb_printf (stream, _("Type \"show configuration\" " |
1369 | "for configuration details.\n")); | |
c16158bc JM |
1370 | |
1371 | if (REPORT_BUGS_TO[0]) | |
1372 | { | |
6cb06a8c TT |
1373 | gdb_printf (stream, |
1374 | _("For bug reporting instructions, please see:\n")); | |
8839e3f3 TT |
1375 | gdb_printf (stream, "%ps.\n", |
1376 | styled_string (file_name_style.style (), | |
1377 | REPORT_BUGS_TO)); | |
c16158bc | 1378 | } |
6cb06a8c TT |
1379 | gdb_printf (stream, |
1380 | _("Find the GDB manual and other documentation \ | |
8839e3f3 TT |
1381 | resources online at:\n <%ps>."), |
1382 | styled_string (file_name_style.style (), | |
1383 | "http://www.gnu.org/software/gdb/documentation/")); | |
6cb06a8c TT |
1384 | gdb_printf (stream, "\n\n"); |
1385 | gdb_printf (stream, _("For help, type \"help\".\n")); | |
1386 | gdb_printf (stream, | |
1387 | _("Type \"apropos word\" to search for commands \ | |
7734102d | 1388 | related to \"word\".")); |
9e0b60a8 | 1389 | } |
6eaaf48b EZ |
1390 | |
1391 | /* Print the details of GDB build-time configuration. */ | |
1392 | void | |
1393 | print_gdb_configuration (struct ui_file *stream) | |
1394 | { | |
6cb06a8c | 1395 | gdb_printf (stream, _("\ |
6eaaf48b EZ |
1396 | This GDB was configured as follows:\n\ |
1397 | configure --host=%s --target=%s\n\ | |
1398 | "), host_name, target_name); | |
bbde7025 | 1399 | |
6cb06a8c | 1400 | gdb_printf (stream, _("\ |
dda83cd7 SM |
1401 | --with-auto-load-dir=%s\n\ |
1402 | --with-auto-load-safe-path=%s\n\ | |
6eaaf48b | 1403 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); |
bbde7025 | 1404 | |
6eaaf48b | 1405 | #if HAVE_LIBEXPAT |
6cb06a8c | 1406 | gdb_printf (stream, _("\ |
dda83cd7 | 1407 | --with-expat\n\ |
6eaaf48b EZ |
1408 | ")); |
1409 | #else | |
6cb06a8c | 1410 | gdb_printf (stream, _("\ |
dda83cd7 | 1411 | --without-expat\n\ |
6eaaf48b EZ |
1412 | ")); |
1413 | #endif | |
bbde7025 | 1414 | |
6eaaf48b | 1415 | if (GDB_DATADIR[0]) |
6cb06a8c | 1416 | gdb_printf (stream, _("\ |
dda83cd7 | 1417 | --with-gdb-datadir=%s%s\n\ |
6eaaf48b | 1418 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); |
bbde7025 | 1419 | |
6eaaf48b | 1420 | #ifdef ICONV_BIN |
6cb06a8c | 1421 | gdb_printf (stream, _("\ |
dda83cd7 | 1422 | --with-iconv-bin=%s%s\n\ |
6eaaf48b EZ |
1423 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); |
1424 | #endif | |
bbde7025 | 1425 | |
6eaaf48b | 1426 | if (JIT_READER_DIR[0]) |
6cb06a8c | 1427 | gdb_printf (stream, _("\ |
dda83cd7 | 1428 | --with-jit-reader-dir=%s%s\n\ |
6eaaf48b | 1429 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); |
bbde7025 | 1430 | |
6eaaf48b | 1431 | #if HAVE_LIBUNWIND_IA64_H |
6cb06a8c | 1432 | gdb_printf (stream, _("\ |
dda83cd7 | 1433 | --with-libunwind-ia64\n\ |
6eaaf48b EZ |
1434 | ")); |
1435 | #else | |
6cb06a8c | 1436 | gdb_printf (stream, _("\ |
dda83cd7 | 1437 | --without-libunwind-ia64\n\ |
6eaaf48b EZ |
1438 | ")); |
1439 | #endif | |
bbde7025 | 1440 | |
6eaaf48b | 1441 | #if HAVE_LIBLZMA |
6cb06a8c | 1442 | gdb_printf (stream, _("\ |
dda83cd7 | 1443 | --with-lzma\n\ |
6eaaf48b EZ |
1444 | ")); |
1445 | #else | |
6cb06a8c | 1446 | gdb_printf (stream, _("\ |
dda83cd7 | 1447 | --without-lzma\n\ |
6eaaf48b EZ |
1448 | ")); |
1449 | #endif | |
bbde7025 | 1450 | |
9bd8e0b0 | 1451 | #if HAVE_LIBBABELTRACE |
6cb06a8c | 1452 | gdb_printf (stream, _("\ |
dda83cd7 | 1453 | --with-babeltrace\n\ |
9bd8e0b0 EZ |
1454 | ")); |
1455 | #else | |
6cb06a8c | 1456 | gdb_printf (stream, _("\ |
dda83cd7 | 1457 | --without-babeltrace\n\ |
9bd8e0b0 EZ |
1458 | ")); |
1459 | #endif | |
bbde7025 | 1460 | |
9bd8e0b0 | 1461 | #if HAVE_LIBIPT |
6cb06a8c | 1462 | gdb_printf (stream, _("\ |
dda83cd7 | 1463 | --with-intel-pt\n\ |
9bd8e0b0 EZ |
1464 | ")); |
1465 | #else | |
6cb06a8c | 1466 | gdb_printf (stream, _("\ |
dda83cd7 | 1467 | --without-intel-pt\n\ |
9bd8e0b0 EZ |
1468 | ")); |
1469 | #endif | |
bbde7025 | 1470 | |
15b07e4f | 1471 | #if HAVE_LIBXXHASH |
6cb06a8c | 1472 | gdb_printf (stream, _("\ |
dda83cd7 | 1473 | --with-xxhash\n\ |
15b07e4f EZ |
1474 | ")); |
1475 | #else | |
6cb06a8c | 1476 | gdb_printf (stream, _("\ |
dda83cd7 | 1477 | --without-xxhash\n\ |
15b07e4f EZ |
1478 | ")); |
1479 | #endif | |
6eaaf48b | 1480 | #ifdef WITH_PYTHON_PATH |
6cb06a8c | 1481 | gdb_printf (stream, _("\ |
dda83cd7 | 1482 | --with-python=%s%s\n\ |
6eaaf48b | 1483 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); |
50c7c5b8 | 1484 | #else |
6cb06a8c | 1485 | gdb_printf (stream, _("\ |
dda83cd7 | 1486 | --without-python\n\ |
50c7c5b8 | 1487 | ")); |
6eaaf48b | 1488 | #endif |
37825800 | 1489 | #ifdef WITH_PYTHON_LIBDIR |
6cb06a8c | 1490 | gdb_printf (stream, _("\ |
dda83cd7 | 1491 | --with-python-libdir=%s%s\n\ |
37825800 AB |
1492 | "), WITH_PYTHON_LIBDIR, PYTHON_LIBDIR_RELOCATABLE ? " (relocatable)" : ""); |
1493 | #else | |
6cb06a8c | 1494 | gdb_printf (stream, _("\ |
dda83cd7 | 1495 | --without-python-libdir\n\ |
37825800 AB |
1496 | ")); |
1497 | #endif | |
bbde7025 | 1498 | |
0d79cdc4 | 1499 | #if HAVE_LIBDEBUGINFOD |
6cb06a8c | 1500 | gdb_printf (stream, _("\ |
dda83cd7 | 1501 | --with-debuginfod\n\ |
0d79cdc4 AM |
1502 | ")); |
1503 | #else | |
6cb06a8c | 1504 | gdb_printf (stream, _("\ |
dda83cd7 | 1505 | --without-debuginfod\n\ |
0d79cdc4 AM |
1506 | ")); |
1507 | #endif | |
1508 | ||
4c9066e3 PB |
1509 | #if HAVE_LIBCURSES |
1510 | gdb_printf (stream, _("\ | |
1511 | --with-curses\n\ | |
1512 | ")); | |
1513 | #else | |
1514 | gdb_printf (stream, _("\ | |
1515 | --without-curses\n\ | |
1516 | ")); | |
1517 | #endif | |
1518 | ||
97d66cc6 | 1519 | #if HAVE_GUILE |
6cb06a8c | 1520 | gdb_printf (stream, _("\ |
dda83cd7 | 1521 | --with-guile\n\ |
97d66cc6 EZ |
1522 | ")); |
1523 | #else | |
6cb06a8c | 1524 | gdb_printf (stream, _("\ |
dda83cd7 | 1525 | --without-guile\n\ |
97d66cc6 EZ |
1526 | ")); |
1527 | #endif | |
bbde7025 | 1528 | |
08d8af48 LS |
1529 | #if HAVE_AMD_DBGAPI |
1530 | gdb_printf (stream, _("\ | |
1531 | --with-amd-dbgapi\n\ | |
1532 | ")); | |
1533 | #else | |
1534 | gdb_printf (stream, _("\ | |
1535 | --without-amd-dbgapi\n\ | |
1536 | ")); | |
1537 | #endif | |
1538 | ||
189b8c2e | 1539 | #if HAVE_SOURCE_HIGHLIGHT |
6cb06a8c | 1540 | gdb_printf (stream, _("\ |
dda83cd7 | 1541 | --enable-source-highlight\n\ |
189b8c2e ST |
1542 | ")); |
1543 | #else | |
6cb06a8c | 1544 | gdb_printf (stream, _("\ |
dda83cd7 | 1545 | --disable-source-highlight\n\ |
189b8c2e ST |
1546 | ")); |
1547 | #endif | |
bbde7025 | 1548 | |
fa8a0804 | 1549 | #if CXX_STD_THREAD |
29d21001 | 1550 | gdb_printf (stream, _("\ |
fa8a0804 EZ |
1551 | --enable-threading\n\ |
1552 | ")); | |
1553 | #else | |
6e348286 | 1554 | gdb_printf (stream, _("\ |
fa8a0804 EZ |
1555 | --disable-threading\n\ |
1556 | ")); | |
1557 | #endif | |
1558 | ||
b5075fb6 TT |
1559 | #ifdef TUI |
1560 | gdb_printf (stream, _("\ | |
1561 | --enable-tui\n\ | |
1562 | ")); | |
1563 | #else | |
1564 | gdb_printf (stream, _("\ | |
1565 | --disable-tui\n\ | |
1566 | ")); | |
1567 | #endif | |
1568 | ||
37d9880d TV |
1569 | #ifdef HAVE_READLINE_READLINE_H |
1570 | gdb_printf (stream, _("\ | |
1571 | --with-system-readline\n\ | |
1572 | ")); | |
1573 | #else | |
1574 | gdb_printf (stream, _("\ | |
1575 | --without-system-readline\n\ | |
1576 | ")); | |
1577 | #endif | |
1578 | ||
6eaaf48b | 1579 | #ifdef RELOC_SRCDIR |
6cb06a8c | 1580 | gdb_printf (stream, _("\ |
dda83cd7 | 1581 | --with-relocated-sources=%s\n\ |
6eaaf48b EZ |
1582 | "), RELOC_SRCDIR); |
1583 | #endif | |
bbde7025 | 1584 | |
6eaaf48b | 1585 | if (DEBUGDIR[0]) |
6cb06a8c | 1586 | gdb_printf (stream, _("\ |
dda83cd7 | 1587 | --with-separate-debug-dir=%s%s\n\ |
6eaaf48b | 1588 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); |
bbde7025 | 1589 | |
740ce350 TJB |
1590 | #ifdef ADDITIONAL_DEBUG_DIRS |
1591 | gdb_printf (stream, _ ("\ | |
1592 | --with-additional-debug-dirs=%s\n\ | |
1593 | "), ADDITIONAL_DEBUG_DIRS); | |
1594 | #endif | |
1595 | ||
6eaaf48b | 1596 | if (TARGET_SYSTEM_ROOT[0]) |
6cb06a8c | 1597 | gdb_printf (stream, _("\ |
dda83cd7 | 1598 | --with-sysroot=%s%s\n\ |
6eaaf48b | 1599 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); |
bbde7025 | 1600 | |
6eaaf48b | 1601 | if (SYSTEM_GDBINIT[0]) |
6cb06a8c | 1602 | gdb_printf (stream, _("\ |
dda83cd7 | 1603 | --with-system-gdbinit=%s%s\n\ |
6eaaf48b | 1604 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); |
bbde7025 | 1605 | |
ed2a2229 | 1606 | if (SYSTEM_GDBINIT_DIR[0]) |
6cb06a8c | 1607 | gdb_printf (stream, _("\ |
dda83cd7 | 1608 | --with-system-gdbinit-dir=%s%s\n\ |
ed2a2229 | 1609 | "), SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE ? " (relocatable)" : ""); |
bbde7025 SM |
1610 | |
1611 | /* We assume "relocatable" will be printed at least once, thus we always | |
1612 | print this text. It's a reasonably safe assumption for now. */ | |
6cb06a8c | 1613 | gdb_printf (stream, _("\n\ |
48d1d6f5 EZ |
1614 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ |
1615 | tree, and GDB will still find it.)\n\ | |
1616 | ")); | |
6eaaf48b | 1617 | } |
9e0b60a8 | 1618 | \f |
95298e72 | 1619 | |
ab821bc6 PA |
1620 | /* The current top level prompt, settable with "set prompt", and/or |
1621 | with the python `gdb.prompt_hook' hook. */ | |
e0700ba4 | 1622 | static std::string top_prompt; |
9e0b60a8 | 1623 | |
ab821bc6 | 1624 | /* Access method for the GDB prompt string. */ |
95298e72 | 1625 | |
e0700ba4 SM |
1626 | const std::string & |
1627 | get_prompt () | |
95298e72 | 1628 | { |
ab821bc6 | 1629 | return top_prompt; |
95298e72 PM |
1630 | } |
1631 | ||
ab821bc6 | 1632 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1633 | |
1634 | void | |
ab821bc6 | 1635 | set_prompt (const char *s) |
95298e72 | 1636 | { |
e0700ba4 | 1637 | top_prompt = s; |
9e0b60a8 | 1638 | } |
9e0b60a8 | 1639 | \f |
c5aa993b | 1640 | |
26f42329 SM |
1641 | /* Kills or detaches the given inferior, depending on how we originally |
1642 | gained control of it. */ | |
9e0b60a8 | 1643 | |
26f42329 SM |
1644 | static void |
1645 | kill_or_detach (inferior *inf, int from_tty) | |
54a012c9 | 1646 | { |
6c95b8df | 1647 | if (inf->pid == 0) |
26f42329 | 1648 | return; |
6c95b8df | 1649 | |
00431a78 | 1650 | thread_info *thread = any_thread_of_inferior (inf); |
b8fa0bfa | 1651 | if (thread != NULL) |
9e0b60a8 | 1652 | { |
00431a78 | 1653 | switch_to_thread (thread); |
c35b1492 PA |
1654 | |
1655 | /* Leave core files alone. */ | |
55f6301a | 1656 | if (target_has_execution ()) |
c35b1492 PA |
1657 | { |
1658 | if (inf->attach_flag) | |
26f42329 | 1659 | target_detach (inf, from_tty); |
c35b1492 PA |
1660 | else |
1661 | target_kill (); | |
1662 | } | |
9e0b60a8 | 1663 | } |
54a012c9 PA |
1664 | } |
1665 | ||
26f42329 SM |
1666 | /* Prints info about what GDB will do to inferior INF on a "quit". OUT is |
1667 | where to collect the output. */ | |
b8fa0bfa | 1668 | |
26f42329 SM |
1669 | static void |
1670 | print_inferior_quit_action (inferior *inf, ui_file *out) | |
b8fa0bfa | 1671 | { |
6c95b8df | 1672 | if (inf->pid == 0) |
26f42329 | 1673 | return; |
6c95b8df | 1674 | |
b8fa0bfa | 1675 | if (inf->attach_flag) |
6cb06a8c TT |
1676 | gdb_printf (out, |
1677 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1678 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); | |
b8fa0bfa | 1679 | else |
6cb06a8c TT |
1680 | gdb_printf (out, |
1681 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1682 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); | |
b8fa0bfa PA |
1683 | } |
1684 | ||
1685 | /* If necessary, make the user confirm that we should quit. Return | |
1686 | non-zero if we should quit, zero if we shouldn't. */ | |
1687 | ||
1688 | int | |
1689 | quit_confirm (void) | |
1690 | { | |
b8fa0bfa PA |
1691 | /* Don't even ask if we're only debugging a core file inferior. */ |
1692 | if (!have_live_inferiors ()) | |
1693 | return 1; | |
1694 | ||
1695 | /* Build the query string as a single string. */ | |
d7e74731 | 1696 | string_file stb; |
b8fa0bfa | 1697 | |
d7e74731 | 1698 | stb.puts (_("A debugging session is active.\n\n")); |
26f42329 SM |
1699 | |
1700 | for (inferior *inf : all_inferiors ()) | |
1701 | print_inferior_quit_action (inf, &stb); | |
1702 | ||
d7e74731 | 1703 | stb.puts (_("\nQuit anyway? ")); |
7b01d34b | 1704 | |
d7e74731 | 1705 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1706 | } |
1707 | ||
18206ca3 PP |
1708 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1709 | terminal so that we leave the terminal in the state we acquired it. */ | |
1710 | ||
1711 | static void | |
1712 | undo_terminal_modifications_before_exit (void) | |
1713 | { | |
3c216924 PA |
1714 | struct ui *saved_top_level = current_ui; |
1715 | ||
223ffa71 | 1716 | target_terminal::ours (); |
3c216924 PA |
1717 | |
1718 | current_ui = main_ui; | |
1719 | ||
18206ca3 PP |
1720 | #if defined(TUI) |
1721 | tui_disable (); | |
1722 | #endif | |
3c216924 PA |
1723 | gdb_disable_readline (); |
1724 | ||
1725 | current_ui = saved_top_level; | |
18206ca3 PP |
1726 | } |
1727 | ||
1728 | ||
b0abbc58 JJ |
1729 | /* Quit without asking for confirmation. */ |
1730 | ||
1731 | void | |
36cf1806 | 1732 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1733 | { |
1734 | int exit_code = 0; | |
1735 | ||
3b431a3c KB |
1736 | /* Clear the quit flag and sync_quit_force_run so that a |
1737 | gdb_exception_forced_quit isn't inadvertently triggered by a QUIT | |
1738 | check while running the various cleanup/exit code below. Note | |
1739 | that the call to 'check_quit_flag' clears the quit flag as a side | |
1740 | effect. */ | |
1741 | check_quit_flag (); | |
1742 | sync_quit_force_run = false; | |
1743 | ||
7734102d | 1744 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1745 | value of that expression. */ |
36cf1806 TT |
1746 | if (exit_arg) |
1747 | exit_code = *exit_arg; | |
4b0ad762 AS |
1748 | else if (return_child_result) |
1749 | exit_code = return_child_result_value; | |
b0abbc58 | 1750 | |
b1f0f284 AB |
1751 | gdb::observers::gdb_exiting.notify (exit_code); |
1752 | ||
1753 | undo_terminal_modifications_before_exit (); | |
1754 | ||
b0abbc58 | 1755 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1756 | |
1757 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
a70b8144 | 1758 | try |
2f9d54cf PA |
1759 | { |
1760 | disconnect_tracing (); | |
26f42329 SM |
1761 | for (inferior *inf : all_inferiors ()) |
1762 | kill_or_detach (inf, from_tty); | |
2f9d54cf | 1763 | } |
230d2906 | 1764 | catch (const gdb_exception &ex) |
492d29ea PA |
1765 | { |
1766 | exception_print (gdb_stderr, ex); | |
1767 | } | |
2f9d54cf PA |
1768 | |
1769 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1770 | them all out. */ | |
5b6d1e4f | 1771 | for (inferior *inf : all_inferiors ()) |
2f9d54cf | 1772 | { |
5b6d1e4f PA |
1773 | try |
1774 | { | |
c8181f70 | 1775 | inf->pop_all_targets (); |
5b6d1e4f PA |
1776 | } |
1777 | catch (const gdb_exception &ex) | |
1778 | { | |
1779 | exception_print (gdb_stderr, ex); | |
1780 | } | |
492d29ea | 1781 | } |
2f9d54cf PA |
1782 | |
1783 | /* Save the history information if it is appropriate to do so. */ | |
a70b8144 | 1784 | try |
2f9d54cf | 1785 | { |
e0700ba4 | 1786 | if (write_history_p && !history_filename.empty ()) |
268a799a | 1787 | { |
268a799a PA |
1788 | int save = 0; |
1789 | ||
1790 | /* History is currently shared between all UIs. If there's | |
1791 | any UI with a terminal, save history. */ | |
2dab0c7b | 1792 | for (ui *ui : all_uis ()) |
268a799a | 1793 | { |
efd3baf0 | 1794 | if (ui->input_interactive_p ()) |
268a799a PA |
1795 | { |
1796 | save = 1; | |
1797 | break; | |
1798 | } | |
1799 | } | |
1800 | ||
1801 | if (save) | |
1802 | gdb_safe_append_history (); | |
1803 | } | |
2f9d54cf | 1804 | } |
230d2906 | 1805 | catch (const gdb_exception &ex) |
492d29ea PA |
1806 | { |
1807 | exception_print (gdb_stderr, ex); | |
1808 | } | |
2f9d54cf | 1809 | |
9d1447e0 SDJ |
1810 | /* Destroy any values currently allocated now instead of leaving it |
1811 | to global destructors, because that may be too late. For | |
1812 | example, the destructors of xmethod values call into the Python | |
1813 | runtime, which is finalized via a final cleanup. */ | |
1814 | finalize_values (); | |
1815 | ||
2f9d54cf | 1816 | /* Do any final cleanups before exiting. */ |
a70b8144 | 1817 | try |
2f9d54cf | 1818 | { |
fe7b42e5 | 1819 | do_final_cleanups (); |
2f9d54cf | 1820 | } |
230d2906 | 1821 | catch (const gdb_exception &ex) |
492d29ea PA |
1822 | { |
1823 | exception_print (gdb_stderr, ex); | |
1824 | } | |
b0abbc58 | 1825 | |
9e0b60a8 JM |
1826 | exit (exit_code); |
1827 | } | |
1828 | ||
13d03262 SM |
1829 | /* See top.h. */ |
1830 | ||
1831 | auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1832 | |
268a799a PA |
1833 | /* Implement the "show interactive-mode" option. */ |
1834 | ||
1835 | static void | |
1836 | show_interactive_mode (struct ui_file *file, int from_tty, | |
dda83cd7 SM |
1837 | struct cmd_list_element *c, |
1838 | const char *value) | |
9e0b60a8 | 1839 | { |
268a799a | 1840 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
6cb06a8c TT |
1841 | gdb_printf (file, "Debugger's interactive mode " |
1842 | "is %s (currently %s).\n", | |
efd3baf0 | 1843 | value, current_ui->input_interactive_p () ? "on" : "off"); |
268a799a | 1844 | else |
6cb06a8c | 1845 | gdb_printf (file, "Debugger's interactive mode is %s.\n", value); |
268a799a PA |
1846 | } |
1847 | ||
9e0b60a8 | 1848 | static void |
0b39b52e | 1849 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1850 | { |
dc7eb48e PA |
1851 | /* Can't call dont_repeat here because we're not necessarily reading |
1852 | from stdin. */ | |
1853 | *saved_command_line = 0; | |
9e0b60a8 JM |
1854 | } |
1855 | \f | |
1856 | /* Functions to manipulate command line editing control variables. */ | |
1857 | ||
1858 | /* Number of commands to print in each call to show_commands. */ | |
1859 | #define Hist_print 10 | |
d318976c | 1860 | void |
85c4be7c | 1861 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1862 | { |
1863 | /* Index for history commands. Relative to history_base. */ | |
1864 | int offset; | |
1865 | ||
1866 | /* Number of the history entry which we are planning to display next. | |
1867 | Relative to history_base. */ | |
1868 | static int num = 0; | |
1869 | ||
9e0b60a8 | 1870 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1871 | |
1872 | if (args) | |
1873 | { | |
1874 | if (args[0] == '+' && args[1] == '\0') | |
1875 | /* "info editing +" should print from the stored position. */ | |
1876 | ; | |
1877 | else | |
1878 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1879 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1880 | } |
1881 | /* "show commands" means print the last Hist_print commands. */ | |
1882 | else | |
1883 | { | |
840a9a1f | 1884 | num = history_length - Hist_print; |
9e0b60a8 JM |
1885 | } |
1886 | ||
1887 | if (num < 0) | |
1888 | num = 0; | |
1889 | ||
1890 | /* If there are at least Hist_print commands, we want to display the last | |
1891 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1892 | if (history_length - num < Hist_print) |
9e0b60a8 | 1893 | { |
840a9a1f | 1894 | num = history_length - Hist_print; |
9e0b60a8 JM |
1895 | if (num < 0) |
1896 | num = 0; | |
1897 | } | |
1898 | ||
840a9a1f PA |
1899 | for (offset = num; |
1900 | offset < num + Hist_print && offset < history_length; | |
1901 | offset++) | |
9e0b60a8 | 1902 | { |
6cb06a8c TT |
1903 | gdb_printf ("%5d %s\n", history_base + offset, |
1904 | (history_get (history_base + offset))->line); | |
9e0b60a8 JM |
1905 | } |
1906 | ||
1907 | /* The next command we want to display is the next one that we haven't | |
1908 | displayed yet. */ | |
1909 | num += Hist_print; | |
1910 | ||
1911 | /* If the user repeats this command with return, it should do what | |
1912 | "show commands +" does. This is unnecessary if arg is null, | |
1913 | because "show commands +" is not useful after "show commands". */ | |
1914 | if (from_tty && args) | |
85c4be7c | 1915 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1916 | } |
1917 | ||
ebfd00d2 | 1918 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1919 | |
ebfd00d2 | 1920 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1921 | |
ebfd00d2 PP |
1922 | static void |
1923 | set_readline_history_size (int history_size) | |
1924 | { | |
1925 | gdb_assert (history_size >= -1); | |
840a9a1f | 1926 | |
ebfd00d2 | 1927 | if (history_size == -1) |
840a9a1f | 1928 | unstifle_history (); |
883b9c6c | 1929 | else |
ebfd00d2 PP |
1930 | stifle_history (history_size); |
1931 | } | |
1932 | ||
1933 | /* Called by do_setshow_command. */ | |
1934 | static void | |
eb4c3f4a TT |
1935 | set_history_size_command (const char *args, |
1936 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1937 | { |
1938 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1939 | } |
1940 | ||
491144b5 | 1941 | bool info_verbose = false; /* Default verbose msgs off. */ |
9e0b60a8 | 1942 | |
94f2c730 | 1943 | /* Called by do_set_command. An elaborate joke. */ |
d318976c | 1944 | void |
eb4c3f4a | 1945 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1946 | { |
6f937416 | 1947 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1948 | struct cmd_list_element *showcmd; |
1949 | ||
cf00cd6f | 1950 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, NULL, 1); |
1427fe5e | 1951 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 | 1952 | |
94f2c730 PW |
1953 | if (c->doc && c->doc_allocated) |
1954 | xfree ((char *) c->doc); | |
1955 | if (showcmd->doc && showcmd->doc_allocated) | |
1956 | xfree ((char *) showcmd->doc); | |
9e0b60a8 JM |
1957 | if (info_verbose) |
1958 | { | |
94f2c730 PW |
1959 | c->doc = _("Set verbose printing of informational messages."); |
1960 | showcmd->doc = _("Show verbose printing of informational messages."); | |
9e0b60a8 JM |
1961 | } |
1962 | else | |
1963 | { | |
94f2c730 PW |
1964 | c->doc = _("Set verbosity."); |
1965 | showcmd->doc = _("Show verbosity."); | |
9e0b60a8 | 1966 | } |
94f2c730 PW |
1967 | c->doc_allocated = 0; |
1968 | showcmd->doc_allocated = 0; | |
9e0b60a8 JM |
1969 | } |
1970 | ||
9e0b60a8 | 1971 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1972 | have been read so that the user can change the history file via his |
1973 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1974 | overrides all of this. */ | |
9e0b60a8 JM |
1975 | |
1976 | void | |
fba45db2 | 1977 | init_history (void) |
9e0b60a8 | 1978 | { |
b5a9bfbe | 1979 | const char *tmpenv; |
9e0b60a8 | 1980 | |
b58c513b | 1981 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1982 | if (tmpenv) |
840a9a1f | 1983 | { |
bc460514 | 1984 | long var; |
0fc26caf | 1985 | int saved_errno; |
bc460514 PP |
1986 | char *endptr; |
1987 | ||
1988 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1989 | errno = 0; |
bc460514 | 1990 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1991 | saved_errno = errno; |
bc460514 PP |
1992 | endptr = skip_spaces (endptr); |
1993 | ||
1994 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1995 | empty string, a negative number or a huge positive number (larger than | |
1996 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1997 | history size to the number we have read. This behavior is consistent | |
1998 | with how bash handles HISTSIZE. */ | |
1999 | if (*endptr != '\0') | |
2000 | ; | |
2001 | else if (*tmpenv == '\0' | |
2002 | || var < 0 | |
0fc26caf PP |
2003 | || var > INT_MAX |
2004 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
2005 | errno after calling strtol to distinguish between a value that | |
2006 | is exactly INT_MAX and an overflowing value that was clamped | |
2007 | to INT_MAX. */ | |
2008 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
2009 | history_size_setshow_var = -1; |
2010 | else | |
2011 | history_size_setshow_var = var; | |
840a9a1f | 2012 | } |
bc460514 PP |
2013 | |
2014 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
2015 | default. */ | |
2016 | if (history_size_setshow_var == -2) | |
840a9a1f | 2017 | history_size_setshow_var = 256; |
9e0b60a8 | 2018 | |
ebfd00d2 | 2019 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 | 2020 | |
e0700ba4 SM |
2021 | if (!history_filename.empty ()) |
2022 | read_history (history_filename.c_str ()); | |
9e0b60a8 JM |
2023 | } |
2024 | ||
920d2a44 | 2025 | static void |
ab821bc6 PA |
2026 | show_prompt (struct ui_file *file, int from_tty, |
2027 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2028 | { |
6cb06a8c | 2029 | gdb_printf (file, _("Gdb's prompt is \"%s\".\n"), value); |
920d2a44 AC |
2030 | } |
2031 | ||
3c216924 PA |
2032 | /* "set editing" command. */ |
2033 | ||
2034 | static void | |
eb4c3f4a | 2035 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
2036 | { |
2037 | change_line_handler (set_editing_cmd_var); | |
2038 | /* Update the control variable so that MI's =cmd-param-changed event | |
2039 | shows the correct value. */ | |
2040 | set_editing_cmd_var = current_ui->command_editing; | |
2041 | } | |
2042 | ||
920d2a44 | 2043 | static void |
3c216924 PA |
2044 | show_editing (struct ui_file *file, int from_tty, |
2045 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2046 | { |
6cb06a8c TT |
2047 | gdb_printf (file, _("Editing of command lines as " |
2048 | "they are typed is %s.\n"), | |
2049 | current_ui->command_editing ? _("on") : _("off")); | |
920d2a44 AC |
2050 | } |
2051 | ||
2052 | static void | |
2053 | show_annotation_level (struct ui_file *file, int from_tty, | |
2054 | struct cmd_list_element *c, const char *value) | |
2055 | { | |
6cb06a8c | 2056 | gdb_printf (file, _("Annotation_level is %s.\n"), value); |
920d2a44 AC |
2057 | } |
2058 | ||
2059 | static void | |
2060 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
2061 | struct cmd_list_element *c, const char *value) | |
2062 | { | |
6cb06a8c TT |
2063 | gdb_printf (file, _("Notification of completion for " |
2064 | "asynchronous execution commands is %s.\n"), | |
2065 | value); | |
920d2a44 | 2066 | } |
6dea1fbd | 2067 | |
79c02443 AB |
2068 | /* New values of the "data-directory" parameter are staged here. |
2069 | Extension languages, for example Python's gdb.parameter API, will read | |
2070 | the value directory from this variable, so we must ensure that this | |
2071 | always contains the correct value. */ | |
e0700ba4 | 2072 | static std::string staged_gdb_datadir; |
8d551b02 | 2073 | |
6dea1fbd JK |
2074 | /* "set" command for the gdb_datadir configuration variable. */ |
2075 | ||
2076 | static void | |
eb4c3f4a | 2077 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 2078 | { |
e0700ba4 | 2079 | set_gdb_data_directory (staged_gdb_datadir.c_str ()); |
79c02443 AB |
2080 | |
2081 | /* SET_GDB_DATA_DIRECTORY will resolve relative paths in | |
2082 | STAGED_GDB_DATADIR, so we now copy the value from GDB_DATADIR | |
2083 | back into STAGED_GDB_DATADIR so the extension languages can read the | |
2084 | correct value. */ | |
e0700ba4 | 2085 | staged_gdb_datadir = gdb_datadir; |
79c02443 | 2086 | |
76727919 | 2087 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
2088 | } |
2089 | ||
8d551b02 DE |
2090 | /* "show" command for the gdb_datadir configuration variable. */ |
2091 | ||
2092 | static void | |
2093 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2094 | struct cmd_list_element *c, const char *value) | |
2095 | { | |
6cb06a8c TT |
2096 | gdb_printf (file, _("GDB's data directory is \"%ps\".\n"), |
2097 | styled_string (file_name_style.style (), | |
2098 | gdb_datadir.c_str ())); | |
8d551b02 DE |
2099 | } |
2100 | ||
63e163f2 AB |
2101 | /* Implement 'set history filename'. */ |
2102 | ||
97c85fc6 | 2103 | static void |
eb4c3f4a TT |
2104 | set_history_filename (const char *args, |
2105 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
2106 | { |
2107 | /* We include the current directory so that if the user changes | |
2108 | directories the file written will be the same as the one | |
2109 | that was read. */ | |
e0700ba4 SM |
2110 | if (!history_filename.empty () |
2111 | && !IS_ABSOLUTE_PATH (history_filename.c_str ())) | |
7ab2607f | 2112 | history_filename = gdb_abspath (history_filename.c_str ()); |
97c85fc6 MB |
2113 | } |
2114 | ||
5809fbf2 TT |
2115 | /* Whether we're in quiet startup mode. */ |
2116 | ||
2117 | static bool startup_quiet; | |
2118 | ||
2119 | /* See top.h. */ | |
2120 | ||
2121 | bool | |
2122 | check_quiet_mode () | |
2123 | { | |
2124 | return startup_quiet; | |
2125 | } | |
2126 | ||
2127 | /* Show whether GDB should start up in quiet mode. */ | |
2128 | ||
2129 | static void | |
2130 | show_startup_quiet (struct ui_file *file, int from_tty, | |
2131 | struct cmd_list_element *c, const char *value) | |
2132 | { | |
6cb06a8c TT |
2133 | gdb_printf (file, _("Whether to start up quietly is %s.\n"), |
2134 | value); | |
5809fbf2 TT |
2135 | } |
2136 | ||
9e0b60a8 | 2137 | static void |
fba45db2 | 2138 | init_main (void) |
9e0b60a8 | 2139 | { |
ab821bc6 PA |
2140 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2141 | the DEFAULT_PROMPT is. */ | |
2142 | set_prompt (DEFAULT_PROMPT); | |
2143 | ||
9e0b60a8 JM |
2144 | /* Set the important stuff up for command editing. */ |
2145 | command_editing_p = 1; | |
9e0b60a8 | 2146 | history_expansion_p = 0; |
452a569e | 2147 | write_history_p = 0; |
9e0b60a8 JM |
2148 | |
2149 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2150 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2151 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2152 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2153 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2154 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2155 | rl_readline_name = "gdb"; |
7cb3ec5e | 2156 | rl_terminal_name = getenv ("TERM"); |
91395d97 | 2157 | rl_deprep_term_function = gdb_rl_deprep_term_function; |
9e0b60a8 | 2158 | |
467d8519 TT |
2159 | /* The name for this defun comes from Bash, where it originated. |
2160 | 15 is Control-o, the same binding this function has in Bash. */ | |
2161 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2162 | ||
4d28ad1e | 2163 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2164 | &top_prompt, |
590042fc PW |
2165 | _("Set gdb's prompt."), |
2166 | _("Show gdb's prompt."), | |
ab821bc6 PA |
2167 | NULL, NULL, |
2168 | show_prompt, | |
4d28ad1e | 2169 | &setlist, &showlist); |
9e0b60a8 | 2170 | |
1bedd215 | 2171 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2172 | Don't repeat this command.\nPrimarily \ |
2173 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2174 | hitting return.")); |
9e0b60a8 | 2175 | |
5bf193a2 | 2176 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2177 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2178 | Set editing of command lines as they are typed."), _("\ |
2179 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2180 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2181 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2182 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2183 | set_editing, |
2184 | show_editing, | |
5bf193a2 AC |
2185 | &setlist, &showlist); |
2186 | ||
2187 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2188 | Set saving of the history record on exit."), _("\ | |
2189 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2190 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2191 | Without an argument, saving is enabled."), |
2192 | NULL, | |
920d2a44 | 2193 | show_write_history_p, |
5bf193a2 | 2194 | &sethistlist, &showhistlist); |
9e0b60a8 | 2195 | |
ebfd00d2 PP |
2196 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2197 | &history_size_setshow_var, _("\ | |
590042fc PW |
2198 | Set the size of the command history."), _("\ |
2199 | Show the size of the command history."), _("\ | |
2200 | This is the number of previous commands to keep a record of.\n\ | |
f81d1120 PA |
2201 | If set to \"unlimited\", the number of commands kept in the history\n\ |
2202 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2203 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2204 | set_history_size_command, |
2205 | show_history_size, | |
2206 | &sethistlist, &showhistlist); | |
4d28ad1e | 2207 | |
fc637f04 PP |
2208 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2209 | &history_remove_duplicates, _("\ | |
2210 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2211 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2212 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2213 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2214 | entry, each time a new history entry is added.\n\ | |
2215 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2216 | Only history entries added during this session are considered for removal.\n\ | |
2217 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2218 | By default this option is set to 0."), | |
2219 | NULL, | |
2220 | show_history_remove_duplicates, | |
2221 | &sethistlist, &showhistlist); | |
2222 | ||
63e163f2 | 2223 | add_setshow_optional_filename_cmd ("filename", no_class, &history_filename, _("\ |
590042fc PW |
2224 | Set the filename in which to record the command history."), _("\ |
2225 | Show the filename in which to record the command history."), _("\ | |
4d28ad1e | 2226 | (the list of previous commands of which a record is kept)."), |
97c85fc6 | 2227 | set_history_filename, |
920d2a44 | 2228 | show_history_filename, |
4d28ad1e | 2229 | &sethistlist, &showhistlist); |
9e0b60a8 | 2230 | |
e360902b | 2231 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2232 | Set whether to confirm potentially dangerous operations."), _("\ |
2233 | Show whether to confirm potentially dangerous operations."), NULL, | |
2234 | NULL, | |
e360902b | 2235 | show_confirm, |
5bf193a2 | 2236 | &setlist, &showlist); |
9e0b60a8 | 2237 | |
85c07804 AC |
2238 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2239 | Set annotation_level."), _("\ | |
2240 | Show annotation_level."), _("\ | |
9e0b60a8 | 2241 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2242 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2243 | NULL, |
920d2a44 | 2244 | show_annotation_level, |
85c07804 | 2245 | &setlist, &showlist); |
362646f5 | 2246 | |
5bf193a2 AC |
2247 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2248 | &exec_done_display_p, _("\ | |
2249 | Set notification of completion for asynchronous execution commands."), _("\ | |
2250 | Show notification of completion for asynchronous execution commands."), _("\ | |
2251 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2252 | NULL, | |
920d2a44 | 2253 | show_exec_done_display_p, |
5bf193a2 | 2254 | &setlist, &showlist); |
b14b1491 TT |
2255 | |
2256 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
dda83cd7 SM |
2257 | &staged_gdb_datadir, _("Set GDB's data directory."), |
2258 | _("Show GDB's data directory."), | |
2259 | _("\ | |
b14b1491 | 2260 | When set, GDB uses the specified path to search for data files."), |
dda83cd7 SM |
2261 | set_gdb_datadir, show_gdb_datadir, |
2262 | &setlist, | |
79c02443 AB |
2263 | &showlist); |
2264 | /* Prime the initial value for data-directory. */ | |
e0700ba4 | 2265 | staged_gdb_datadir = gdb_datadir; |
268a799a PA |
2266 | |
2267 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
dda83cd7 | 2268 | &interactive_mode, _("\ |
268a799a PA |
2269 | Set whether GDB's standard input is a terminal."), _("\ |
2270 | Show whether GDB's standard input is a terminal."), _("\ | |
2271 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2272 | means that GDB should wait for the user to answer queries associated to\n\ | |
2273 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2274 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2275 | If auto (the default), determine which mode to use based on the standard\n\ | |
2276 | input settings."), | |
dda83cd7 SM |
2277 | NULL, |
2278 | show_interactive_mode, | |
2279 | &setlist, &showlist); | |
60eb5395 | 2280 | |
af7f8f52 | 2281 | add_setshow_boolean_cmd ("startup-quietly", class_support, |
5809fbf2 TT |
2282 | &startup_quiet, _("\ |
2283 | Set whether GDB should start up quietly."), _(" \ | |
2284 | Show whether GDB should start up quietly."), _("\ | |
2285 | This setting will not affect the current session. Instead this command\n\ | |
2286 | should be added to the .gdbearlyinit file in the users home directory to\n\ | |
2287 | affect future GDB sessions."), | |
2288 | NULL, | |
2289 | show_startup_quiet, | |
2290 | &setlist, &showlist); | |
2291 | ||
37163dcf TT |
2292 | struct internalvar *major_version_var = create_internalvar ("_gdb_major"); |
2293 | struct internalvar *minor_version_var = create_internalvar ("_gdb_minor"); | |
2294 | int vmajor = 0, vminor = 0, vrevision = 0; | |
2295 | sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision); | |
2296 | set_internalvar_integer (major_version_var, vmajor); | |
2297 | set_internalvar_integer (minor_version_var, vminor + (vrevision > 0)); | |
9e0b60a8 | 2298 | } |
64cdedad | 2299 | |
a3b5ef3e AB |
2300 | /* See top.h. */ |
2301 | ||
64cdedad | 2302 | void |
a3b5ef3e | 2303 | gdb_init () |
64cdedad | 2304 | { |
68bb5386 PW |
2305 | saved_command_line = xstrdup (""); |
2306 | previous_saved_command_line = xstrdup (""); | |
2307 | ||
371d5dec | 2308 | /* Run the init function of each source file. */ |
64cdedad | 2309 | |
64cdedad EZ |
2310 | #ifdef __MSDOS__ |
2311 | /* Make sure we return to the original directory upon exit, come | |
2312 | what may, since the OS doesn't do that for us. */ | |
2313 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2314 | #endif | |
2315 | ||
24b73f8e PP |
2316 | init_page_info (); |
2317 | ||
9dea9163 | 2318 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2319 | initialize_all_files (); |
9dea9163 | 2320 | |
6c95b8df PA |
2321 | /* This creates the current_program_space. Do this after all the |
2322 | _initialize_foo routines have had a chance to install their | |
2323 | per-sspace data keys. Also do this before | |
2324 | initialize_current_architecture is called, because it accesses | |
2325 | exec_bfd of the current program space. */ | |
2326 | initialize_progspace (); | |
2327 | initialize_inferiors (); | |
64cdedad | 2328 | initialize_current_architecture (); |
371d5dec | 2329 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2330 | |
0ea3f30e DJ |
2331 | initialize_stdin_serial (); |
2332 | ||
6a06d660 PP |
2333 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2334 | to alter it. */ | |
2335 | set_initial_gdb_ttystate (); | |
2336 | ||
27013564 | 2337 | gdb_init_signals (); |
64cdedad | 2338 | |
371d5dec MS |
2339 | /* We need a default language for parsing expressions, so simple |
2340 | things like "set width 0" won't fail if no language is explicitly | |
2341 | set in a config file or implicitly set by reading an executable | |
2342 | during startup. */ | |
64cdedad | 2343 | set_language (language_c); |
371d5dec | 2344 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2345 | } |
e0700ba4 SM |
2346 | |
2347 | void _initialize_top (); | |
2348 | void | |
2349 | _initialize_top () | |
2350 | { | |
2351 | /* Determine a default value for the history filename. */ | |
2352 | const char *tmpenv = getenv ("GDBHISTFILE"); | |
2353 | if (tmpenv != nullptr) | |
2354 | history_filename = tmpenv; | |
2355 | else | |
2356 | { | |
2357 | /* We include the current directory so that if the user changes | |
2358 | directories the file written will be the same as the one | |
2359 | that was read. */ | |
2360 | #ifdef __MSDOS__ | |
2361 | /* No leading dots in file names are allowed on MSDOS. */ | |
2362 | const char *fname = "_gdb_history"; | |
2363 | #else | |
2364 | const char *fname = ".gdb_history"; | |
2365 | #endif | |
2366 | ||
7ab2607f | 2367 | history_filename = gdb_abspath (fname); |
e0700ba4 SM |
2368 | } |
2369 | } |