Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 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" |
60250e8b | 29 | #include "exceptions.h" |
042be3a9 | 30 | #include <signal.h> |
c906108c | 31 | #include "target.h" |
68c765e2 | 32 | #include "target-dcache.h" |
c906108c SS |
33 | #include "breakpoint.h" |
34 | #include "gdbtypes.h" | |
35 | #include "expression.h" | |
36 | #include "value.h" | |
37 | #include "language.h" | |
c5aa993b | 38 | #include "terminal.h" /* For job_control. */ |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
d4f3574e | 42 | #include "version.h" |
210661e7 | 43 | #include "serial.h" |
d16aafd8 | 44 | #include "doublest.h" |
f9c696d2 | 45 | #include "gdb_assert.h" |
f17517ea | 46 | #include "main.h" |
2e03ee74 | 47 | #include "event-loop.h" |
8ea051c5 | 48 | #include "gdbthread.h" |
6dddc817 | 49 | #include "extension.h" |
b4a14fd0 | 50 | #include "interps.h" |
6dea1fbd | 51 | #include "observer.h" |
bd712aed | 52 | #include "maint.h" |
97c85fc6 | 53 | #include "filenames.h" |
c906108c | 54 | |
371d5dec | 55 | /* readline include files. */ |
dbda9972 AC |
56 | #include "readline/readline.h" |
57 | #include "readline/history.h" | |
c906108c SS |
58 | |
59 | /* readline defines this. */ | |
60 | #undef savestring | |
61 | ||
62 | #include <sys/types.h> | |
c906108c | 63 | |
c2c6d25f | 64 | #include "event-top.h" |
0e9f083f | 65 | #include <string.h> |
53ce3c39 | 66 | #include <sys/stat.h> |
c906108c | 67 | #include <ctype.h> |
8b93c638 JM |
68 | #include "ui-out.h" |
69 | #include "cli-out.h" | |
2f9d54cf | 70 | #include "tracepoint.h" |
c906108c | 71 | |
ca7b0bbc TT |
72 | extern void initialize_all_files (void); |
73 | ||
95298e72 PM |
74 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
75 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
76 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
77 | ||
371d5dec | 78 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
79 | |
80 | #ifndef DEFAULT_PROMPT | |
81 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
82 | #endif |
83 | ||
e655c1a2 | 84 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 85 | |
e655c1a2 | 86 | const char gdbinit[] = GDBINIT; |
c906108c SS |
87 | |
88 | int inhibit_gdbinit = 0; | |
89 | ||
c906108c SS |
90 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
91 | ||
050a2e1d PA |
92 | /* Flag for whether we want to confirm potentially dangerous |
93 | operations. Default is yes. */ | |
94 | ||
e360902b | 95 | int confirm = 1; |
c906108c | 96 | |
920d2a44 | 97 | static void |
e360902b | 98 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
99 | struct cmd_list_element *c, const char *value) |
100 | { | |
3e43a32a MS |
101 | fprintf_filtered (file, _("Whether to confirm potentially " |
102 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
103 | value); |
104 | } | |
c906108c | 105 | |
371d5dec MS |
106 | /* stdio stream that command input is being read from. Set to stdin |
107 | normally. Set by source_command to the file we are sourcing. Set | |
108 | to NULL if we are executing a user-defined command or interacting | |
109 | via a GUI. */ | |
c906108c SS |
110 | |
111 | FILE *instream; | |
112 | ||
698ba934 DJ |
113 | /* Flag to indicate whether a user defined command is currently running. */ |
114 | ||
115 | int in_user_command; | |
116 | ||
c906108c SS |
117 | /* Current working directory. */ |
118 | ||
119 | char *current_directory; | |
120 | ||
121 | /* The directory name is actually stored here (usually). */ | |
122 | char gdb_dirbuf[1024]; | |
123 | ||
124 | /* Function to call before reading a command, if nonzero. | |
125 | The function receives two args: an input stream, | |
126 | and a prompt string. */ | |
127 | ||
507f3c78 | 128 | void (*window_hook) (FILE *, char *); |
c906108c | 129 | |
c906108c SS |
130 | /* Buffer used for reading command lines, and the size |
131 | allocated for it so far. */ | |
132 | ||
dc7eb48e PA |
133 | char *saved_command_line; |
134 | int saved_command_line_size = 100; | |
c906108c SS |
135 | |
136 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 137 | affects things like recording into the command history, commands |
c906108c SS |
138 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
139 | whatever) can issue its own commands and also send along commands | |
140 | from the user, and have the user not notice that the user interface | |
141 | is issuing commands too. */ | |
142 | int server_command; | |
143 | ||
371d5dec | 144 | /* Timeout limit for response from target. */ |
c906108c | 145 | |
ce808e91 AC |
146 | /* The default value has been changed many times over the years. It |
147 | was originally 5 seconds. But that was thought to be a long time | |
148 | to sit and wait, so it was changed to 2 seconds. That was thought | |
149 | to be plenty unless the connection was going through some terminal | |
150 | server or multiplexer or other form of hairy serial connection. | |
151 | ||
152 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
153 | it began being used in other remote-* targets. It appears that the | |
154 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 155 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
156 | |
157 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
158 | 20 seconds is far worse. This demonstrates the difficulty of using | |
159 | a single variable for all protocol timeouts. | |
160 | ||
161 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 162 | back to 2 seconds in 1999. */ |
ce808e91 AC |
163 | |
164 | int remote_timeout = 2; | |
c906108c SS |
165 | |
166 | /* Non-zero tells remote* modules to output debugging info. */ | |
167 | ||
168 | int remote_debug = 0; | |
169 | ||
6dd77b81 RH |
170 | /* Sbrk location on entry to main. Used for statistics only. */ |
171 | #ifdef HAVE_SBRK | |
172 | char *lim_at_start; | |
173 | #endif | |
174 | ||
c906108c SS |
175 | /* Hooks for alternate command interfaces. */ |
176 | ||
371d5dec MS |
177 | /* Called after most modules have been initialized, but before taking |
178 | users command file. | |
1ad24239 | 179 | |
371d5dec MS |
180 | If the UI fails to initialize and it wants GDB to continue using |
181 | the default UI, then it should clear this hook before returning. */ | |
c906108c | 182 | |
9a4105ab | 183 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a | 184 | |
371d5dec MS |
185 | /* This hook is called from within gdb's many mini-event loops which |
186 | could steal control from a real user interface's event loop. It | |
187 | returns non-zero if the user is requesting a detach, zero | |
188 | otherwise. */ | |
7a292a7a | 189 | |
98bbd631 | 190 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 191 | |
c906108c | 192 | |
c906108c SS |
193 | /* Called from print_frame_info to list the line we stopped in. */ |
194 | ||
371d5dec MS |
195 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
196 | int line, | |
197 | int stopline, | |
198 | int noerror); | |
c906108c SS |
199 | /* Replaces most of query. */ |
200 | ||
9a4105ab | 201 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
202 | |
203 | /* Replaces most of warning. */ | |
204 | ||
9a4105ab | 205 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 206 | |
9a4105ab AC |
207 | /* These three functions support getting lines of text from the user. |
208 | They are used in sequence. First deprecated_readline_begin_hook is | |
209 | called with a text string that might be (for example) a message for | |
210 | the user to type in a sequence of commands to be executed at a | |
211 | breakpoint. If this function calls back to a GUI, it might take | |
212 | this opportunity to pop up a text interaction window with this | |
213 | message. Next, deprecated_readline_hook is called with a prompt | |
214 | that is emitted prior to collecting the user input. It can be | |
215 | called multiple times. Finally, deprecated_readline_end_hook is | |
216 | called to notify the GUI that we are done with the interaction | |
217 | window and it can close it. */ | |
c906108c | 218 | |
9a4105ab AC |
219 | void (*deprecated_readline_begin_hook) (char *, ...); |
220 | char *(*deprecated_readline_hook) (char *); | |
221 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 222 | |
6426a772 | 223 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 224 | to or detached from an already running process. */ |
6426a772 | 225 | |
9a4105ab AC |
226 | void (*deprecated_attach_hook) (void); |
227 | void (*deprecated_detach_hook) (void); | |
6426a772 | 228 | |
371d5dec MS |
229 | /* Called during long calculations to allow GUI to repair window |
230 | damage, and to check for stop buttons, etc... */ | |
c906108c | 231 | |
9a4105ab | 232 | void (*deprecated_interactive_hook) (void); |
c906108c | 233 | |
c378eb4e | 234 | /* Tell the GUI someone changed the register REGNO. -1 means |
c906108c | 235 | that the caller does not know which register changed or |
371d5dec | 236 | that several registers have changed (see value_assign). */ |
9a4105ab | 237 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 238 | |
371d5dec MS |
239 | /* Called when going to wait for the target. Usually allows the GUI |
240 | to run while waiting for target events. */ | |
c906108c | 241 | |
9a4105ab | 242 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
243 | struct target_waitstatus *status, |
244 | int options); | |
c906108c | 245 | |
371d5dec MS |
246 | /* Used by UI as a wrapper around command execution. May do various |
247 | things like enabling/disabling buttons, etc... */ | |
c906108c | 248 | |
371d5dec MS |
249 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
250 | char *cmd, int from_tty); | |
c906108c SS |
251 | |
252 | /* Called when the current thread changes. Argument is thread id. */ | |
253 | ||
9a4105ab | 254 | void (*deprecated_context_hook) (int id); |
c906108c | 255 | |
c906108c SS |
256 | /* Handler for SIGHUP. */ |
257 | ||
258 | #ifdef SIGHUP | |
392a587b | 259 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 260 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 261 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
262 | /* static */ void |
263 | quit_cover (void) | |
c906108c | 264 | { |
e360902b PA |
265 | /* Stop asking user for confirmation --- we're exiting. This |
266 | prevents asking the user dumb questions. */ | |
267 | confirm = 0; | |
c5aa993b | 268 | quit_command ((char *) 0, 0); |
c906108c SS |
269 | } |
270 | #endif /* defined SIGHUP */ | |
271 | \f | |
7a9dd1b2 | 272 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 273 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 274 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 275 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 276 | /* static */ int source_line_number; |
c906108c SS |
277 | |
278 | /* Name of the file we are sourcing. */ | |
392a587b | 279 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 280 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 281 | event-top.c into this file, top.c. */ |
05159abe | 282 | /* static */ const char *source_file_name; |
c906108c | 283 | |
c906108c SS |
284 | /* Clean up on error during a "source" command (or execution of a |
285 | user-defined command). */ | |
286 | ||
d318976c | 287 | void |
e41a3b1a | 288 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
289 | { |
290 | /* Restore the previous input stream. */ | |
291 | instream = stream; | |
292 | } | |
293 | ||
294 | /* Read commands from STREAM. */ | |
295 | void | |
fba45db2 | 296 | read_command_file (FILE *stream) |
c906108c SS |
297 | { |
298 | struct cleanup *cleanups; | |
299 | ||
e41a3b1a | 300 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 301 | instream = stream; |
c5aa993b | 302 | command_loop (); |
c906108c SS |
303 | do_cleanups (cleanups); |
304 | } | |
305 | \f | |
507f3c78 | 306 | void (*pre_init_ui_hook) (void); |
c906108c | 307 | |
e41a3b1a | 308 | #ifdef __MSDOS__ |
70976b65 | 309 | static void |
e41a3b1a AC |
310 | do_chdir_cleanup (void *old_dir) |
311 | { | |
312 | chdir (old_dir); | |
b8c9b27d | 313 | xfree (old_dir); |
e41a3b1a AC |
314 | } |
315 | #endif | |
316 | ||
028d0ed5 | 317 | struct cleanup * |
4e5d721f DE |
318 | prepare_execute_command (void) |
319 | { | |
028d0ed5 TJB |
320 | struct value *mark; |
321 | struct cleanup *cleanup; | |
322 | ||
323 | mark = value_mark (); | |
324 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 325 | |
371d5dec MS |
326 | /* With multiple threads running while the one we're examining is |
327 | stopped, the dcache can get stale without us being able to detect | |
328 | it. For the duration of the command, though, use the dcache to | |
329 | help things like backtrace. */ | |
4e5d721f DE |
330 | if (non_stop) |
331 | target_dcache_invalidate (); | |
028d0ed5 TJB |
332 | |
333 | return cleanup; | |
4e5d721f DE |
334 | } |
335 | ||
77cce10f PA |
336 | /* Tell the user if the language has changed (except first time) after |
337 | executing a command. */ | |
338 | ||
339 | void | |
340 | check_frame_language_change (void) | |
341 | { | |
342 | static int warned = 0; | |
343 | ||
344 | /* First make sure that a new frame has been selected, in case the | |
345 | command or the hooks changed the program state. */ | |
346 | deprecated_safe_get_selected_frame (); | |
347 | if (current_language != expected_language) | |
348 | { | |
349 | if (language_mode == language_mode_auto && info_verbose) | |
350 | { | |
351 | language_info (1); /* Print what changed. */ | |
352 | } | |
353 | warned = 0; | |
354 | } | |
355 | ||
356 | /* Warn the user if the working language does not match the language | |
357 | of the current frame. Only warn the user if we are actually | |
358 | running the program, i.e. there is a stack. */ | |
359 | /* FIXME: This should be cacheing the frame and only running when | |
360 | the frame changes. */ | |
361 | ||
362 | if (has_stack_frames ()) | |
363 | { | |
364 | enum language flang; | |
365 | ||
366 | flang = get_frame_language (); | |
367 | if (!warned | |
368 | && flang != language_unknown | |
369 | && flang != current_language->la_language) | |
370 | { | |
371 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
372 | warned = 1; | |
373 | } | |
374 | } | |
375 | } | |
376 | ||
648bf667 | 377 | /* Execute the line P as a command, in the current user context. |
d318976c | 378 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 379 | |
d318976c FN |
380 | void |
381 | execute_command (char *p, int from_tty) | |
c906108c | 382 | { |
353d1d73 | 383 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 384 | struct cmd_list_element *c; |
d318976c | 385 | char *line; |
4e5d721f | 386 | |
353d1d73 | 387 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 388 | cleanup = prepare_execute_command (); |
c906108c | 389 | |
d318976c FN |
390 | /* Force cleanup of any alloca areas if using C alloca instead of |
391 | a builtin alloca. */ | |
392 | alloca (0); | |
c906108c | 393 | |
d318976c FN |
394 | /* This can happen when command_line_input hits end of file. */ |
395 | if (p == NULL) | |
5fe41fbf TT |
396 | { |
397 | do_cleanups (cleanup); | |
5ae85e44 | 398 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
399 | return; |
400 | } | |
c906108c | 401 | |
49d03eab | 402 | target_log_command (p); |
8b93c638 | 403 | |
d318976c FN |
404 | while (*p == ' ' || *p == '\t') |
405 | p++; | |
406 | if (*p) | |
8b93c638 | 407 | { |
6f937416 | 408 | const char *cmd = p; |
d318976c | 409 | char *arg; |
90e28950 TT |
410 | int was_sync = sync_execution; |
411 | ||
d318976c | 412 | line = p; |
8b93c638 | 413 | |
16026cd7 AS |
414 | /* If trace-commands is set then this will print this command. */ |
415 | print_command_trace (p); | |
416 | ||
6f937416 PA |
417 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
418 | p = (char *) cmd; | |
8b93c638 | 419 | |
d318976c FN |
420 | /* Pass null arg rather than an empty one. */ |
421 | arg = *p ? p : 0; | |
8b93c638 | 422 | |
9f60d481 AC |
423 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
424 | while the is_complete_command(cfunc) test is just plain | |
425 | bogus. They should both be replaced by a test of the form | |
426 | c->strip_trailing_white_space_p. */ | |
427 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
428 | can't be replaced with func. This is because it is the | |
429 | cfunc, and not the func, that has the value that the | |
430 | is_complete_command hack is testing for. */ | |
431 | /* Clear off trailing whitespace, except for set and complete | |
432 | command. */ | |
d318976c FN |
433 | if (arg |
434 | && c->type != set_cmd | |
bbaca940 | 435 | && !is_complete_command (c)) |
8b93c638 | 436 | { |
d318976c FN |
437 | p = arg + strlen (arg) - 1; |
438 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
439 | p--; | |
440 | *(p + 1) = '\0'; | |
8b93c638 JM |
441 | } |
442 | ||
371d5dec | 443 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 444 | execute_cmd_pre_hook (c); |
c906108c | 445 | |
1f2bdf09 | 446 | if (c->deprecated_warn_user) |
6f937416 | 447 | deprecated_cmd_warning (line); |
c906108c | 448 | |
7d74f244 DE |
449 | /* c->user_commands would be NULL in the case of a python command. */ |
450 | if (c->class == class_user && c->user_commands) | |
d318976c | 451 | execute_user_command (c, arg); |
5b9afe8a YQ |
452 | else if (c->type == set_cmd) |
453 | do_set_command (arg, from_tty, c); | |
454 | else if (c->type == show_cmd) | |
455 | do_show_command (arg, from_tty, c); | |
f436dd25 | 456 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 457 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 458 | else if (deprecated_call_command_hook) |
050a2e1d | 459 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 460 | else |
050a2e1d | 461 | cmd_func (c, arg, from_tty); |
b4a14fd0 PA |
462 | |
463 | /* If the interpreter is in sync mode (we're running a user | |
464 | command's list, running command hooks or similars), and we | |
465 | just ran a synchronous command that started the target, wait | |
466 | for that command to end. */ | |
90e28950 | 467 | if (!interpreter_async && !was_sync && sync_execution) |
b4a14fd0 PA |
468 | { |
469 | while (gdb_do_one_event () >= 0) | |
470 | if (!sync_execution) | |
471 | break; | |
472 | } | |
473 | ||
371d5dec | 474 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 475 | execute_cmd_post_hook (c); |
c906108c | 476 | |
c906108c SS |
477 | } |
478 | ||
77cce10f | 479 | check_frame_language_change (); |
028d0ed5 | 480 | |
353d1d73 JK |
481 | do_cleanups (cleanup); |
482 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
483 | } |
484 | ||
5da1313b JK |
485 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
486 | returned string, do not display it to the screen. BATCH_FLAG will be | |
487 | temporarily set to true. */ | |
488 | ||
489 | char * | |
490 | execute_command_to_string (char *p, int from_tty) | |
491 | { | |
492 | struct ui_file *str_file; | |
493 | struct cleanup *cleanup; | |
494 | char *retval; | |
495 | ||
496 | /* GDB_STDOUT should be better already restored during these | |
497 | restoration callbacks. */ | |
498 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
499 | ||
b4a14fd0 PA |
500 | make_cleanup_restore_integer (&interpreter_async); |
501 | interpreter_async = 0; | |
502 | ||
5da1313b JK |
503 | str_file = mem_fileopen (); |
504 | ||
8d4d924b | 505 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
506 | make_cleanup_restore_ui_file (&gdb_stdout); |
507 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
508 | make_cleanup_restore_ui_file (&gdb_stdlog); |
509 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
510 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
511 | ||
79a45e25 | 512 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
513 | warning (_("Current output protocol does not support redirection")); |
514 | else | |
79a45e25 | 515 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
516 | |
517 | gdb_stdout = str_file; | |
518 | gdb_stderr = str_file; | |
8d4d924b JK |
519 | gdb_stdlog = str_file; |
520 | gdb_stdtarg = str_file; | |
521 | gdb_stdtargerr = str_file; | |
5da1313b JK |
522 | |
523 | execute_command (p, from_tty); | |
524 | ||
525 | retval = ui_file_xstrdup (str_file, NULL); | |
526 | ||
527 | do_cleanups (cleanup); | |
528 | ||
529 | return retval; | |
530 | } | |
531 | ||
d318976c FN |
532 | /* Read commands from `instream' and execute them |
533 | until end of file or error reading instream. */ | |
c906108c | 534 | |
d318976c FN |
535 | void |
536 | command_loop (void) | |
c906108c | 537 | { |
d318976c FN |
538 | struct cleanup *old_chain; |
539 | char *command; | |
540 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 541 | |
d318976c FN |
542 | while (instream && !feof (instream)) |
543 | { | |
d318976c | 544 | if (window_hook && instream == stdin) |
ab821bc6 | 545 | (*window_hook) (instream, get_prompt ()); |
c906108c | 546 | |
522002f9 | 547 | clear_quit_flag (); |
d318976c FN |
548 | if (instream == stdin && stdin_is_tty) |
549 | reinitialize_more_filter (); | |
550 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 551 | |
c378eb4e | 552 | /* Get a command-line. This calls the readline package. */ |
d318976c | 553 | command = command_line_input (instream == stdin ? |
ab821bc6 | 554 | get_prompt () : (char *) NULL, |
d318976c | 555 | instream == stdin, "prompt"); |
d318976c | 556 | if (command == 0) |
5fe41fbf TT |
557 | { |
558 | do_cleanups (old_chain); | |
559 | return; | |
560 | } | |
c906108c | 561 | |
0f3bb72e | 562 | make_command_stats_cleanup (1); |
9e0b60a8 | 563 | |
fb1f94b0 PM |
564 | /* Do not execute commented lines. */ |
565 | if (command[0] != '#') | |
566 | { | |
567 | execute_command (command, instream == stdin); | |
347bddb7 | 568 | |
fb1f94b0 PM |
569 | /* Do any commands attached to breakpoint we are stopped at. */ |
570 | bpstat_do_actions (); | |
571 | } | |
d318976c | 572 | do_cleanups (old_chain); |
9e0b60a8 | 573 | } |
9e0b60a8 | 574 | } |
d318976c | 575 | \f |
47a80e90 TT |
576 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
577 | set via prevent_dont_repeat. */ | |
578 | ||
579 | static int suppress_dont_repeat = 0; | |
580 | ||
d318976c | 581 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 582 | |
d318976c FN |
583 | void |
584 | dont_repeat (void) | |
9e0b60a8 | 585 | { |
47a80e90 | 586 | if (suppress_dont_repeat || server_command) |
d318976c | 587 | return; |
9e0b60a8 | 588 | |
d318976c | 589 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
590 | thing read from stdin in line and don't want to delete it. Null |
591 | lines won't repeat here in any case. */ | |
d318976c | 592 | if (instream == stdin) |
dc7eb48e | 593 | *saved_command_line = 0; |
9e0b60a8 | 594 | } |
47a80e90 TT |
595 | |
596 | /* Prevent dont_repeat from working, and return a cleanup that | |
597 | restores the previous state. */ | |
598 | ||
599 | struct cleanup * | |
600 | prevent_dont_repeat (void) | |
601 | { | |
602 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
603 | ||
604 | suppress_dont_repeat = 1; | |
605 | return result; | |
606 | } | |
607 | ||
d318976c FN |
608 | \f |
609 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 610 | |
d318976c FN |
611 | It prints PROMPT_ARG once at the start. |
612 | Action is compatible with "readline", e.g. space for the result is | |
613 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 614 | |
d318976c FN |
615 | A NULL return means end of file. */ |
616 | char * | |
617 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 618 | { |
d318976c FN |
619 | int c; |
620 | char *result; | |
621 | int input_index = 0; | |
622 | int result_size = 80; | |
9e0b60a8 | 623 | |
d318976c | 624 | if (prompt_arg) |
9e0b60a8 | 625 | { |
d318976c FN |
626 | /* Don't use a _filtered function here. It causes the assumed |
627 | character position to be off, since the newline we read from | |
628 | the user is not accounted for. */ | |
629 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
630 | gdb_flush (gdb_stdout); |
631 | } | |
632 | ||
d318976c | 633 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
634 | |
635 | while (1) | |
636 | { | |
d318976c FN |
637 | /* Read from stdin if we are executing a user defined command. |
638 | This is the right thing for prompt_for_continue, at least. */ | |
639 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 640 | |
d318976c | 641 | if (c == EOF) |
9e0b60a8 | 642 | { |
d318976c FN |
643 | if (input_index > 0) |
644 | /* The last line does not end with a newline. Return it, and | |
645 | if we are called again fgetc will still return EOF and | |
646 | we'll return NULL then. */ | |
9e0b60a8 | 647 | break; |
b8c9b27d | 648 | xfree (result); |
d318976c | 649 | return NULL; |
9e0b60a8 | 650 | } |
c5aa993b | 651 | |
d318976c | 652 | if (c == '\n') |
9e0b60a8 | 653 | { |
d318976c FN |
654 | if (input_index > 0 && result[input_index - 1] == '\r') |
655 | input_index--; | |
656 | break; | |
9e0b60a8 | 657 | } |
9e0b60a8 | 658 | |
d318976c FN |
659 | result[input_index++] = c; |
660 | while (input_index >= result_size) | |
9e0b60a8 | 661 | { |
d318976c FN |
662 | result_size *= 2; |
663 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 664 | } |
9e0b60a8 JM |
665 | } |
666 | ||
d318976c FN |
667 | result[input_index++] = '\0'; |
668 | return result; | |
9e0b60a8 JM |
669 | } |
670 | ||
d318976c FN |
671 | /* Variables which control command line editing and history |
672 | substitution. These variables are given default values at the end | |
673 | of this file. */ | |
674 | static int command_editing_p; | |
920d2a44 | 675 | |
d318976c FN |
676 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
677 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 678 | event-top.c into this file, top.c. */ |
920d2a44 | 679 | |
d318976c | 680 | /* static */ int history_expansion_p; |
920d2a44 | 681 | |
d318976c | 682 | static int write_history_p; |
920d2a44 AC |
683 | static void |
684 | show_write_history_p (struct ui_file *file, int from_tty, | |
685 | struct cmd_list_element *c, const char *value) | |
686 | { | |
687 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
688 | value); | |
689 | } | |
690 | ||
840a9a1f PA |
691 | /* The variable associated with the "set/show history size" |
692 | command. */ | |
693 | static unsigned int history_size_setshow_var; | |
694 | ||
920d2a44 AC |
695 | static void |
696 | show_history_size (struct ui_file *file, int from_tty, | |
697 | struct cmd_list_element *c, const char *value) | |
698 | { | |
699 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
700 | value); | |
701 | } | |
702 | ||
d318976c | 703 | static char *history_filename; |
920d2a44 AC |
704 | static void |
705 | show_history_filename (struct ui_file *file, int from_tty, | |
706 | struct cmd_list_element *c, const char *value) | |
707 | { | |
3e43a32a MS |
708 | fprintf_filtered (file, _("The filename in which to record " |
709 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
710 | value); |
711 | } | |
9e0b60a8 | 712 | |
b4f5539f | 713 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 714 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
715 | a single gdb invocation. At the ordinary top-level prompt we might |
716 | be using the async readline. That means we can't use | |
717 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
718 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
719 | `define'), gdb wants a synchronous response. |
720 | ||
721 | We used to call readline() directly, running it in synchronous | |
722 | mode. But mixing modes this way is not supported, and as of | |
723 | readline 5.x it no longer works; the arrow keys come unbound during | |
724 | the synchronous call. So we make a nested call into the event | |
725 | loop. That's what gdb_readline_wrapper is for. */ | |
726 | ||
727 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
728 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
729 | the user types Control-D for EOF. */ | |
730 | static int gdb_readline_wrapper_done; | |
731 | ||
732 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
733 | is seen. */ | |
734 | static char *gdb_readline_wrapper_result; | |
735 | ||
736 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
737 | to be called after the newline is processed (which will redisplay | |
738 | the prompt). But in gdb_readline_wrapper we will not get a new | |
739 | prompt until the next call, or until we return to the event loop. | |
740 | So we disable this hook around the newline and restore it before we | |
741 | return. */ | |
742 | static void (*saved_after_char_processing_hook) (void); | |
743 | ||
744 | /* This function is called when readline has seen a complete line of | |
745 | text. */ | |
746 | ||
747 | static void | |
748 | gdb_readline_wrapper_line (char *line) | |
749 | { | |
750 | gdb_assert (!gdb_readline_wrapper_done); | |
751 | gdb_readline_wrapper_result = line; | |
752 | gdb_readline_wrapper_done = 1; | |
753 | ||
754 | /* Prevent operate-and-get-next from acting too early. */ | |
755 | saved_after_char_processing_hook = after_char_processing_hook; | |
756 | after_char_processing_hook = NULL; | |
1b05479a DJ |
757 | |
758 | /* Prevent parts of the prompt from being redisplayed if annotations | |
759 | are enabled, and readline's state getting out of sync. */ | |
760 | if (async_command_editing_p) | |
761 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
762 | } |
763 | ||
764 | struct gdb_readline_wrapper_cleanup | |
765 | { | |
766 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
767 | int already_prompted_orig; |
768 | }; | |
769 | ||
770 | static void | |
771 | gdb_readline_wrapper_cleanup (void *arg) | |
772 | { | |
773 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
774 | ||
2e03ee74 | 775 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
776 | |
777 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
778 | input_handler = cleanup->handler_orig; | |
779 | gdb_readline_wrapper_result = NULL; | |
780 | gdb_readline_wrapper_done = 0; | |
781 | ||
782 | after_char_processing_hook = saved_after_char_processing_hook; | |
783 | saved_after_char_processing_hook = NULL; | |
784 | ||
785 | xfree (cleanup); | |
786 | } | |
787 | ||
b4f5539f TT |
788 | char * |
789 | gdb_readline_wrapper (char *prompt) | |
790 | { | |
2e03ee74 DJ |
791 | struct cleanup *back_to; |
792 | struct gdb_readline_wrapper_cleanup *cleanup; | |
793 | char *retval; | |
794 | ||
795 | cleanup = xmalloc (sizeof (*cleanup)); | |
796 | cleanup->handler_orig = input_handler; | |
797 | input_handler = gdb_readline_wrapper_line; | |
798 | ||
2e03ee74 DJ |
799 | cleanup->already_prompted_orig = rl_already_prompted; |
800 | ||
801 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
802 | ||
803 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 804 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
805 | rl_already_prompted = 1; |
806 | ||
362646f5 | 807 | if (after_char_processing_hook) |
2e03ee74 DJ |
808 | (*after_char_processing_hook) (); |
809 | gdb_assert (after_char_processing_hook == NULL); | |
810 | ||
e0dd0826 | 811 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
812 | if (gdb_readline_wrapper_done) |
813 | break; | |
b4f5539f | 814 | |
2e03ee74 DJ |
815 | retval = gdb_readline_wrapper_result; |
816 | do_cleanups (back_to); | |
817 | return retval; | |
b4f5539f TT |
818 | } |
819 | ||
9e0b60a8 | 820 | \f |
467d8519 TT |
821 | /* The current saved history number from operate-and-get-next. |
822 | This is -1 if not valid. */ | |
823 | static int operate_saved_history = -1; | |
824 | ||
825 | /* This is put on the appropriate hook and helps operate-and-get-next | |
826 | do its work. */ | |
b9362cc7 | 827 | static void |
5ae5f592 | 828 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
829 | { |
830 | int delta = where_history () - operate_saved_history; | |
5d502164 | 831 | |
467d8519 TT |
832 | /* The `key' argument to rl_get_previous_history is ignored. */ |
833 | rl_get_previous_history (delta, 0); | |
834 | operate_saved_history = -1; | |
835 | ||
836 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 837 | rl_redisplay (); |
467d8519 TT |
838 | |
839 | after_char_processing_hook = NULL; | |
840 | rl_pre_input_hook = NULL; | |
841 | } | |
842 | ||
843 | /* This is a gdb-local readline command handler. It accepts the | |
844 | current command line (like RET does) and, if this command was taken | |
845 | from the history, arranges for the next command in the history to | |
846 | appear on the command line when the prompt returns. | |
847 | We ignore the arguments. */ | |
848 | static int | |
849 | gdb_rl_operate_and_get_next (int count, int key) | |
850 | { | |
b5686e99 MK |
851 | int where; |
852 | ||
362646f5 AC |
853 | /* Use the async hook. */ |
854 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 855 | |
b5686e99 MK |
856 | /* Find the current line, and find the next line to use. */ |
857 | where = where_history(); | |
858 | ||
1fb2e2b5 PA |
859 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
860 | || (where >= history_length - 1)) | |
b5686e99 MK |
861 | operate_saved_history = where; |
862 | else | |
863 | operate_saved_history = where + 1; | |
864 | ||
467d8519 TT |
865 | return rl_newline (1, key); |
866 | } | |
867 | \f | |
d318976c FN |
868 | /* Read one line from the command input stream `instream' |
869 | into the local static buffer `linebuffer' (whose current length | |
870 | is `linelength'). | |
871 | The buffer is made bigger as necessary. | |
872 | Returns the address of the start of the line. | |
9e0b60a8 | 873 | |
d318976c | 874 | NULL is returned for end of file. |
9e0b60a8 | 875 | |
d318976c FN |
876 | *If* the instream == stdin & stdin is a terminal, the line read |
877 | is copied into the file line saver (global var char *line, | |
878 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 879 | |
d318976c FN |
880 | This routine either uses fancy command line editing or |
881 | simple input as the user has requested. */ | |
10689f25 | 882 | |
d318976c FN |
883 | char * |
884 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 885 | { |
d318976c FN |
886 | static char *linebuffer = 0; |
887 | static unsigned linelength = 0; | |
52f0bd74 | 888 | char *p; |
d318976c FN |
889 | char *p1; |
890 | char *rl; | |
891 | char *local_prompt = prompt_arg; | |
892 | char *nline; | |
893 | char got_eof = 0; | |
894 | ||
895 | /* The annotation suffix must be non-NULL. */ | |
896 | if (annotation_suffix == NULL) | |
897 | annotation_suffix = ""; | |
9e0b60a8 | 898 | |
d318976c FN |
899 | if (annotation_level > 1 && instream == stdin) |
900 | { | |
901 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
902 | + strlen (annotation_suffix) + 40); | |
903 | if (prompt_arg == NULL) | |
904 | local_prompt[0] = '\0'; | |
905 | else | |
906 | strcpy (local_prompt, prompt_arg); | |
907 | strcat (local_prompt, "\n\032\032"); | |
908 | strcat (local_prompt, annotation_suffix); | |
909 | strcat (local_prompt, "\n"); | |
910 | } | |
9e0b60a8 | 911 | |
d318976c | 912 | if (linebuffer == 0) |
9e0b60a8 | 913 | { |
d318976c FN |
914 | linelength = 80; |
915 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 916 | } |
9e0b60a8 | 917 | |
d318976c | 918 | p = linebuffer; |
9e0b60a8 | 919 | |
d318976c FN |
920 | /* Control-C quits instantly if typed while in this loop |
921 | since it should not wait until the user types a newline. */ | |
922 | immediate_quit++; | |
522002f9 | 923 | QUIT; |
d318976c FN |
924 | #ifdef STOP_SIGNAL |
925 | if (job_control) | |
362646f5 | 926 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
927 | #endif |
928 | ||
929 | while (1) | |
9e0b60a8 | 930 | { |
371d5dec MS |
931 | /* Make sure that all output has been output. Some machines may |
932 | let you get away with leaving out some of the gdb_flush, but | |
933 | not all. */ | |
d318976c FN |
934 | wrap_here (""); |
935 | gdb_flush (gdb_stdout); | |
936 | gdb_flush (gdb_stderr); | |
937 | ||
938 | if (source_file_name != NULL) | |
637537d0 | 939 | ++source_line_number; |
d318976c FN |
940 | |
941 | if (annotation_level > 1 && instream == stdin) | |
942 | { | |
306d9ac5 DC |
943 | puts_unfiltered ("\n\032\032pre-"); |
944 | puts_unfiltered (annotation_suffix); | |
945 | puts_unfiltered ("\n"); | |
d318976c FN |
946 | } |
947 | ||
948 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 949 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 950 | { |
9a4105ab | 951 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 952 | } |
698ba934 | 953 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 954 | { |
b4f5539f | 955 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 956 | } |
9e0b60a8 | 957 | else |
d318976c FN |
958 | { |
959 | rl = gdb_readline (local_prompt); | |
960 | } | |
9e0b60a8 | 961 | |
d318976c FN |
962 | if (annotation_level > 1 && instream == stdin) |
963 | { | |
306d9ac5 DC |
964 | puts_unfiltered ("\n\032\032post-"); |
965 | puts_unfiltered (annotation_suffix); | |
966 | puts_unfiltered ("\n"); | |
d318976c | 967 | } |
9e0b60a8 | 968 | |
d318976c | 969 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 970 | { |
d318976c FN |
971 | got_eof = 1; |
972 | break; | |
9e0b60a8 | 973 | } |
d318976c FN |
974 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
975 | { | |
976 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
977 | nline = (char *) xrealloc (linebuffer, linelength); | |
978 | p += nline - linebuffer; | |
979 | linebuffer = nline; | |
980 | } | |
981 | p1 = rl; | |
982 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 983 | if this was just a newline). */ |
d318976c FN |
984 | while (*p1) |
985 | *p++ = *p1++; | |
9e0b60a8 | 986 | |
b8c9b27d | 987 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 988 | |
d318976c FN |
989 | if (p == linebuffer || *(p - 1) != '\\') |
990 | break; | |
9e0b60a8 | 991 | |
d318976c FN |
992 | p--; /* Put on top of '\'. */ |
993 | local_prompt = (char *) 0; | |
994 | } | |
9e0b60a8 | 995 | |
d318976c FN |
996 | #ifdef STOP_SIGNAL |
997 | if (job_control) | |
998 | signal (STOP_SIGNAL, SIG_DFL); | |
999 | #endif | |
1000 | immediate_quit--; | |
9e0b60a8 | 1001 | |
d318976c FN |
1002 | if (got_eof) |
1003 | return NULL; | |
9e0b60a8 | 1004 | |
d318976c FN |
1005 | #define SERVER_COMMAND_LENGTH 7 |
1006 | server_command = | |
1007 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1008 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1009 | if (server_command) |
9e0b60a8 | 1010 | { |
d318976c FN |
1011 | /* Note that we don't set `line'. Between this and the check in |
1012 | dont_repeat, this insures that repeating will still do the | |
1013 | right thing. */ | |
1014 | *p = '\0'; | |
1015 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1016 | } |
9e0b60a8 | 1017 | |
d318976c FN |
1018 | /* Do history expansion if that is wished. */ |
1019 | if (history_expansion_p && instream == stdin | |
1020 | && ISATTY (instream)) | |
1021 | { | |
1022 | char *history_value; | |
1023 | int expanded; | |
9e0b60a8 | 1024 | |
d318976c FN |
1025 | *p = '\0'; /* Insert null now. */ |
1026 | expanded = history_expand (linebuffer, &history_value); | |
1027 | if (expanded) | |
1028 | { | |
1029 | /* Print the changes. */ | |
1030 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1031 | |
d318976c FN |
1032 | /* If there was an error, call this function again. */ |
1033 | if (expanded < 0) | |
1034 | { | |
b8c9b27d | 1035 | xfree (history_value); |
3e43a32a MS |
1036 | return command_line_input (prompt_arg, repeat, |
1037 | annotation_suffix); | |
d318976c FN |
1038 | } |
1039 | if (strlen (history_value) > linelength) | |
1040 | { | |
1041 | linelength = strlen (history_value) + 1; | |
1042 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1043 | } | |
1044 | strcpy (linebuffer, history_value); | |
1045 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1046 | } |
91d2803c | 1047 | xfree (history_value); |
d318976c | 1048 | } |
9e0b60a8 | 1049 | |
371d5dec MS |
1050 | /* If we just got an empty line, and that is supposed to repeat the |
1051 | previous command, return the value in the global buffer. */ | |
d318976c | 1052 | if (repeat && p == linebuffer) |
dc7eb48e | 1053 | return saved_command_line; |
d318976c FN |
1054 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1055 | if (repeat && !*p1) | |
dc7eb48e | 1056 | return saved_command_line; |
9e0b60a8 | 1057 | |
d318976c | 1058 | *p = 0; |
9e0b60a8 | 1059 | |
d318976c | 1060 | /* Add line to history if appropriate. */ |
840da61a | 1061 | if (*linebuffer && input_from_terminal_p ()) |
d318976c | 1062 | add_history (linebuffer); |
9e0b60a8 | 1063 | |
d318976c FN |
1064 | /* Save into global buffer if appropriate. */ |
1065 | if (repeat) | |
1066 | { | |
dc7eb48e | 1067 | if (linelength > saved_command_line_size) |
d318976c | 1068 | { |
dc7eb48e PA |
1069 | saved_command_line = xrealloc (saved_command_line, linelength); |
1070 | saved_command_line_size = linelength; | |
d318976c | 1071 | } |
dc7eb48e PA |
1072 | strcpy (saved_command_line, linebuffer); |
1073 | return saved_command_line; | |
d318976c | 1074 | } |
9e0b60a8 | 1075 | |
d318976c | 1076 | return linebuffer; |
9e0b60a8 JM |
1077 | } |
1078 | \f | |
371d5dec | 1079 | /* Print the GDB banner. */ |
9e0b60a8 | 1080 | void |
fba45db2 | 1081 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1082 | { |
1083 | /* From GNU coding standards, first line is meant to be easy for a | |
1084 | program to parse, and is just canonical program name and version | |
371d5dec | 1085 | number, which starts after last space. */ |
9e0b60a8 | 1086 | |
c16158bc | 1087 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1088 | |
371d5dec | 1089 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1090 | |
3e43a32a | 1091 | fprintf_filtered (stream, |
28498c42 | 1092 | "Copyright (C) 2014 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1093 | |
1094 | /* Following the copyright is a brief statement that the program is | |
1095 | free software, that users are free to copy and change it on | |
1096 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1097 | there is no warranty. */ |
9e0b60a8 JM |
1098 | |
1099 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1100 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1101 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1102 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1103 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1104 | |
371d5dec | 1105 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1106 | |
1107 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1108 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1109 | { |
3e43a32a MS |
1110 | fprintf_filtered (stream, "--host=%s --target=%s", |
1111 | host_name, target_name); | |
9e0b60a8 JM |
1112 | } |
1113 | else | |
1114 | { | |
1115 | fprintf_filtered (stream, "%s", host_name); | |
1116 | } | |
6eaaf48b EZ |
1117 | fprintf_filtered (stream, "\".\n\ |
1118 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1119 | |
1120 | if (REPORT_BUGS_TO[0]) | |
1121 | { | |
6eaaf48b | 1122 | fprintf_filtered (stream, |
c16158bc | 1123 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1124 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1125 | } |
1cf55f60 PM |
1126 | fprintf_filtered (stream, |
1127 | _("Find the GDB manual and other documentation \ | |
1128 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1129 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1130 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1131 | commands related to \"word\".")); |
9e0b60a8 | 1132 | } |
6eaaf48b EZ |
1133 | |
1134 | /* Print the details of GDB build-time configuration. */ | |
1135 | void | |
1136 | print_gdb_configuration (struct ui_file *stream) | |
1137 | { | |
1138 | fprintf_filtered (stream, _("\ | |
1139 | This GDB was configured as follows:\n\ | |
1140 | configure --host=%s --target=%s\n\ | |
1141 | "), host_name, target_name); | |
1142 | fprintf_filtered (stream, _("\ | |
1143 | --with-auto-load-dir=%s\n\ | |
1144 | --with-auto-load-safe-path=%s\n\ | |
1145 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1146 | #if HAVE_LIBEXPAT | |
1147 | fprintf_filtered (stream, _("\ | |
1148 | --with-expat\n\ | |
1149 | ")); | |
1150 | #else | |
1151 | fprintf_filtered (stream, _("\ | |
1152 | --without-expat\n\ | |
1153 | ")); | |
1154 | #endif | |
1155 | if (GDB_DATADIR[0]) | |
1156 | fprintf_filtered (stream, _("\ | |
1157 | --with-gdb-datadir=%s%s\n\ | |
1158 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1159 | #ifdef ICONV_BIN | |
1160 | fprintf_filtered (stream, _("\ | |
1161 | --with-iconv-bin=%s%s\n\ | |
1162 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1163 | #endif | |
1164 | if (JIT_READER_DIR[0]) | |
1165 | fprintf_filtered (stream, _("\ | |
1166 | --with-jit-reader-dir=%s%s\n\ | |
1167 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1168 | #if HAVE_LIBUNWIND_IA64_H | |
1169 | fprintf_filtered (stream, _("\ | |
1170 | --with-libunwind-ia64\n\ | |
1171 | ")); | |
1172 | #else | |
1173 | fprintf_filtered (stream, _("\ | |
1174 | --without-libunwind-ia64\n\ | |
1175 | ")); | |
1176 | #endif | |
1177 | #if HAVE_LIBLZMA | |
1178 | fprintf_filtered (stream, _("\ | |
1179 | --with-lzma\n\ | |
1180 | ")); | |
1181 | #else | |
1182 | fprintf_filtered (stream, _("\ | |
1183 | --without-lzma\n\ | |
1184 | ")); | |
1185 | #endif | |
1186 | #ifdef WITH_PYTHON_PATH | |
1187 | fprintf_filtered (stream, _("\ | |
1188 | --with-python=%s%s\n\ | |
1189 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1190 | #endif | |
97d66cc6 EZ |
1191 | #if HAVE_GUILE |
1192 | fprintf_filtered (stream, _("\ | |
1193 | --with-guile\n\ | |
1194 | ")); | |
1195 | #else | |
1196 | fprintf_filtered (stream, _("\ | |
1197 | --without-guile\n\ | |
1198 | ")); | |
1199 | #endif | |
6eaaf48b EZ |
1200 | #ifdef RELOC_SRCDIR |
1201 | fprintf_filtered (stream, _("\ | |
1202 | --with-relocated-sources=%s\n\ | |
1203 | "), RELOC_SRCDIR); | |
1204 | #endif | |
1205 | if (DEBUGDIR[0]) | |
1206 | fprintf_filtered (stream, _("\ | |
1207 | --with-separate-debug-dir=%s%s\n\ | |
1208 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1209 | if (TARGET_SYSTEM_ROOT[0]) | |
1210 | fprintf_filtered (stream, _("\ | |
1211 | --with-sysroot=%s%s\n\ | |
1212 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1213 | if (SYSTEM_GDBINIT[0]) | |
1214 | fprintf_filtered (stream, _("\ | |
1215 | --with-system-gdbinit=%s%s\n\ | |
1216 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
1217 | #if HAVE_ZLIB_H | |
1218 | fprintf_filtered (stream, _("\ | |
1219 | --with-zlib\n\ | |
1220 | ")); | |
1221 | #else | |
1222 | fprintf_filtered (stream, _("\ | |
1223 | --without-zlib\n\ | |
1224 | ")); | |
1225 | #endif | |
ab116149 YQ |
1226 | #if HAVE_LIBBABELTRACE |
1227 | fprintf_filtered (stream, _("\ | |
1228 | --with-babeltrace\n\ | |
1229 | ")); | |
1230 | #else | |
1231 | fprintf_filtered (stream, _("\ | |
1232 | --without-babeltrace\n\ | |
1233 | ")); | |
1234 | #endif | |
48d1d6f5 EZ |
1235 | /* We assume "relocatable" will be printed at least once, thus we always |
1236 | print this text. It's a reasonably safe assumption for now. */ | |
1237 | fprintf_filtered (stream, _("\n\ | |
1238 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1239 | tree, and GDB will still find it.)\n\ | |
1240 | ")); | |
6eaaf48b | 1241 | } |
9e0b60a8 | 1242 | \f |
95298e72 | 1243 | |
ab821bc6 PA |
1244 | /* The current top level prompt, settable with "set prompt", and/or |
1245 | with the python `gdb.prompt_hook' hook. */ | |
1246 | static char *top_prompt; | |
9e0b60a8 | 1247 | |
ab821bc6 | 1248 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1249 | |
1250 | char * | |
ab821bc6 | 1251 | get_prompt (void) |
95298e72 | 1252 | { |
ab821bc6 | 1253 | return top_prompt; |
95298e72 PM |
1254 | } |
1255 | ||
ab821bc6 | 1256 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1257 | |
1258 | void | |
ab821bc6 | 1259 | set_prompt (const char *s) |
95298e72 | 1260 | { |
ab821bc6 | 1261 | char *p = xstrdup (s); |
95298e72 | 1262 | |
ab821bc6 PA |
1263 | xfree (top_prompt); |
1264 | top_prompt = p; | |
9e0b60a8 | 1265 | } |
9e0b60a8 | 1266 | \f |
c5aa993b | 1267 | |
b0abbc58 | 1268 | struct qt_args |
9e0b60a8 | 1269 | { |
b0abbc58 JJ |
1270 | char *args; |
1271 | int from_tty; | |
1272 | }; | |
9e0b60a8 | 1273 | |
54a012c9 PA |
1274 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1275 | inferior, depending on how we originally gained control of it. */ | |
1276 | ||
1277 | static int | |
1278 | kill_or_detach (struct inferior *inf, void *args) | |
1279 | { | |
1280 | struct qt_args *qt = args; | |
1281 | struct thread_info *thread; | |
1282 | ||
6c95b8df PA |
1283 | if (inf->pid == 0) |
1284 | return 0; | |
1285 | ||
b8fa0bfa PA |
1286 | thread = any_thread_of_process (inf->pid); |
1287 | if (thread != NULL) | |
9e0b60a8 | 1288 | { |
54a012c9 | 1289 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1290 | |
1291 | /* Leave core files alone. */ | |
1292 | if (target_has_execution) | |
1293 | { | |
1294 | if (inf->attach_flag) | |
1295 | target_detach (qt->args, qt->from_tty); | |
1296 | else | |
1297 | target_kill (); | |
1298 | } | |
9e0b60a8 JM |
1299 | } |
1300 | ||
54a012c9 PA |
1301 | return 0; |
1302 | } | |
1303 | ||
b8fa0bfa PA |
1304 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1305 | will do to each inferior on a "quit". ARG points to a struct | |
1306 | ui_out where output is to be collected. */ | |
1307 | ||
1308 | static int | |
1309 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1310 | { | |
1311 | struct ui_file *stb = arg; | |
1312 | ||
6c95b8df PA |
1313 | if (inf->pid == 0) |
1314 | return 0; | |
1315 | ||
b8fa0bfa PA |
1316 | if (inf->attach_flag) |
1317 | fprintf_filtered (stb, | |
1318 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1319 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1320 | else | |
1321 | fprintf_filtered (stb, | |
1322 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1323 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1324 | ||
1325 | return 0; | |
1326 | } | |
1327 | ||
1328 | /* If necessary, make the user confirm that we should quit. Return | |
1329 | non-zero if we should quit, zero if we shouldn't. */ | |
1330 | ||
1331 | int | |
1332 | quit_confirm (void) | |
1333 | { | |
1334 | struct ui_file *stb; | |
1335 | struct cleanup *old_chain; | |
1336 | char *str; | |
1337 | int qr; | |
1338 | ||
1339 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1340 | if (!have_live_inferiors ()) | |
1341 | return 1; | |
1342 | ||
1343 | /* Build the query string as a single string. */ | |
1344 | stb = mem_fileopen (); | |
1345 | old_chain = make_cleanup_ui_file_delete (stb); | |
1346 | ||
5a5d8ead AB |
1347 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); |
1348 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1349 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
b8fa0bfa PA |
1350 | |
1351 | str = ui_file_xstrdup (stb, NULL); | |
1352 | make_cleanup (xfree, str); | |
1353 | ||
1354 | qr = query ("%s", str); | |
1355 | do_cleanups (old_chain); | |
1356 | return qr; | |
1357 | } | |
1358 | ||
b0abbc58 JJ |
1359 | /* Quit without asking for confirmation. */ |
1360 | ||
1361 | void | |
1362 | quit_force (char *args, int from_tty) | |
1363 | { | |
1364 | int exit_code = 0; | |
365c70b1 | 1365 | struct qt_args qt; |
2f9d54cf | 1366 | volatile struct gdb_exception ex; |
b0abbc58 JJ |
1367 | |
1368 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1369 | value of that expression. */ |
b0abbc58 JJ |
1370 | if (args) |
1371 | { | |
1372 | struct value *val = parse_and_eval (args); | |
1373 | ||
1374 | exit_code = (int) value_as_long (val); | |
1375 | } | |
4b0ad762 AS |
1376 | else if (return_child_result) |
1377 | exit_code = return_child_result_value; | |
b0abbc58 | 1378 | |
365c70b1 JJ |
1379 | qt.args = args; |
1380 | qt.from_tty = from_tty; | |
1381 | ||
2f9d54cf PA |
1382 | /* Wrappers to make the code below a bit more readable. */ |
1383 | #define DO_TRY \ | |
1384 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1385 | ||
1386 | #define DO_PRINT_EX \ | |
1387 | if (ex.reason < 0) \ | |
1388 | exception_print (gdb_stderr, ex) | |
1389 | ||
b0abbc58 | 1390 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1391 | |
1392 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
1393 | DO_TRY | |
1394 | { | |
1395 | disconnect_tracing (); | |
1396 | iterate_over_inferiors (kill_or_detach, &qt); | |
1397 | } | |
1398 | DO_PRINT_EX; | |
1399 | ||
1400 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1401 | them all out. */ | |
1402 | DO_TRY | |
1403 | { | |
1404 | pop_all_targets (); | |
1405 | } | |
1406 | DO_PRINT_EX; | |
1407 | ||
1408 | /* Save the history information if it is appropriate to do so. */ | |
1409 | DO_TRY | |
1410 | { | |
35ab155d MB |
1411 | if (write_history_p && history_filename |
1412 | && input_from_terminal_p ()) | |
2f9d54cf PA |
1413 | write_history (history_filename); |
1414 | } | |
1415 | DO_PRINT_EX; | |
1416 | ||
1417 | /* Do any final cleanups before exiting. */ | |
1418 | DO_TRY | |
1419 | { | |
1420 | do_final_cleanups (all_cleanups ()); | |
1421 | } | |
1422 | DO_PRINT_EX; | |
b0abbc58 | 1423 | |
9e0b60a8 JM |
1424 | exit (exit_code); |
1425 | } | |
1426 | ||
698ba934 DJ |
1427 | /* Returns whether GDB is running on a terminal and input is |
1428 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1429 | |
1430 | int | |
fba45db2 | 1431 | input_from_terminal_p (void) |
9e0b60a8 | 1432 | { |
c63a1f86 JK |
1433 | if (batch_flag) |
1434 | return 0; | |
1435 | ||
698ba934 DJ |
1436 | if (gdb_has_a_terminal () && instream == stdin) |
1437 | return 1; | |
1438 | ||
1439 | /* If INSTREAM is unset, and we are not in a user command, we | |
1440 | must be in Insight. That's like having a terminal, for our | |
1441 | purposes. */ | |
1442 | if (instream == NULL && !in_user_command) | |
1443 | return 1; | |
1444 | ||
1445 | return 0; | |
9e0b60a8 JM |
1446 | } |
1447 | \f | |
9e0b60a8 | 1448 | static void |
fba45db2 | 1449 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1450 | { |
dc7eb48e PA |
1451 | /* Can't call dont_repeat here because we're not necessarily reading |
1452 | from stdin. */ | |
1453 | *saved_command_line = 0; | |
9e0b60a8 JM |
1454 | } |
1455 | \f | |
1456 | /* Functions to manipulate command line editing control variables. */ | |
1457 | ||
1458 | /* Number of commands to print in each call to show_commands. */ | |
1459 | #define Hist_print 10 | |
d318976c | 1460 | void |
fba45db2 | 1461 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1462 | { |
1463 | /* Index for history commands. Relative to history_base. */ | |
1464 | int offset; | |
1465 | ||
1466 | /* Number of the history entry which we are planning to display next. | |
1467 | Relative to history_base. */ | |
1468 | static int num = 0; | |
1469 | ||
9e0b60a8 | 1470 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1471 | |
1472 | if (args) | |
1473 | { | |
1474 | if (args[0] == '+' && args[1] == '\0') | |
1475 | /* "info editing +" should print from the stored position. */ | |
1476 | ; | |
1477 | else | |
1478 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1479 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1480 | } |
1481 | /* "show commands" means print the last Hist_print commands. */ | |
1482 | else | |
1483 | { | |
840a9a1f | 1484 | num = history_length - Hist_print; |
9e0b60a8 JM |
1485 | } |
1486 | ||
1487 | if (num < 0) | |
1488 | num = 0; | |
1489 | ||
1490 | /* If there are at least Hist_print commands, we want to display the last | |
1491 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1492 | if (history_length - num < Hist_print) |
9e0b60a8 | 1493 | { |
840a9a1f | 1494 | num = history_length - Hist_print; |
9e0b60a8 JM |
1495 | if (num < 0) |
1496 | num = 0; | |
1497 | } | |
1498 | ||
840a9a1f PA |
1499 | for (offset = num; |
1500 | offset < num + Hist_print && offset < history_length; | |
1501 | offset++) | |
9e0b60a8 JM |
1502 | { |
1503 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1504 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1505 | } |
1506 | ||
1507 | /* The next command we want to display is the next one that we haven't | |
1508 | displayed yet. */ | |
1509 | num += Hist_print; | |
1510 | ||
1511 | /* If the user repeats this command with return, it should do what | |
1512 | "show commands +" does. This is unnecessary if arg is null, | |
1513 | because "show commands +" is not useful after "show commands". */ | |
1514 | if (from_tty && args) | |
1515 | { | |
1516 | args[0] = '+'; | |
1517 | args[1] = '\0'; | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1522 | static void |
fba45db2 | 1523 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1524 | { |
840a9a1f PA |
1525 | /* Readline's history interface works with 'int', so it can only |
1526 | handle history sizes up to INT_MAX. The command itself is | |
1527 | uinteger, so UINT_MAX means "unlimited", but we only get that if | |
1528 | the user does "set history size 0" -- "set history size <UINT_MAX>" | |
1529 | throws out-of-range. */ | |
1530 | if (history_size_setshow_var > INT_MAX | |
1531 | && history_size_setshow_var != UINT_MAX) | |
9e0b60a8 | 1532 | { |
840a9a1f PA |
1533 | unsigned int new_value = history_size_setshow_var; |
1534 | ||
1535 | /* Restore previous value before throwing. */ | |
1536 | if (history_is_stifled ()) | |
1537 | history_size_setshow_var = history_max_entries; | |
1538 | else | |
1539 | history_size_setshow_var = UINT_MAX; | |
1540 | ||
1541 | error (_("integer %u out of range"), new_value); | |
9e0b60a8 | 1542 | } |
840a9a1f PA |
1543 | |
1544 | /* Commit the new value to readline's history. */ | |
1545 | if (history_size_setshow_var == UINT_MAX) | |
1546 | unstifle_history (); | |
883b9c6c | 1547 | else |
840a9a1f | 1548 | stifle_history (history_size_setshow_var); |
9e0b60a8 JM |
1549 | } |
1550 | ||
d318976c | 1551 | void |
fba45db2 | 1552 | set_history (char *args, int from_tty) |
9e0b60a8 | 1553 | { |
3e43a32a MS |
1554 | printf_unfiltered (_("\"set history\" must be followed " |
1555 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1556 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1557 | } |
1558 | ||
d318976c | 1559 | void |
fba45db2 | 1560 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1561 | { |
1562 | cmd_show_list (showhistlist, from_tty, ""); | |
1563 | } | |
1564 | ||
371d5dec | 1565 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1566 | |
1567 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1568 | void |
fba45db2 | 1569 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1570 | { |
6f937416 | 1571 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1572 | struct cmd_list_element *showcmd; |
1573 | ||
1574 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1575 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1576 | |
1577 | if (info_verbose) | |
1578 | { | |
1579 | c->doc = "Set verbose printing of informational messages."; | |
1580 | showcmd->doc = "Show verbose printing of informational messages."; | |
1581 | } | |
1582 | else | |
1583 | { | |
1584 | c->doc = "Set verbosity."; | |
1585 | showcmd->doc = "Show verbosity."; | |
1586 | } | |
1587 | } | |
1588 | ||
9e0b60a8 | 1589 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1590 | have been read so that the user can change the history file via his |
1591 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1592 | overrides all of this. */ | |
9e0b60a8 JM |
1593 | |
1594 | void | |
fba45db2 | 1595 | init_history (void) |
9e0b60a8 JM |
1596 | { |
1597 | char *tmpenv; | |
1598 | ||
1599 | tmpenv = getenv ("HISTSIZE"); | |
1600 | if (tmpenv) | |
840a9a1f PA |
1601 | { |
1602 | int var; | |
1603 | ||
1604 | var = atoi (tmpenv); | |
1605 | if (var < 0) | |
1606 | { | |
1607 | /* Prefer ending up with no history rather than overflowing | |
1608 | readline's history interface, which uses signed 'int' | |
1609 | everywhere. */ | |
1610 | var = 0; | |
1611 | } | |
1612 | ||
1613 | history_size_setshow_var = var; | |
1614 | } | |
1615 | /* If the init file hasn't set a size yet, pick the default. */ | |
1616 | else if (history_size_setshow_var == 0) | |
1617 | history_size_setshow_var = 256; | |
9e0b60a8 | 1618 | |
840a9a1f PA |
1619 | /* Note that unlike "set history size 0", "HISTSIZE=0" really sets |
1620 | the history size to 0... */ | |
1621 | stifle_history (history_size_setshow_var); | |
9e0b60a8 JM |
1622 | |
1623 | tmpenv = getenv ("GDBHISTFILE"); | |
1624 | if (tmpenv) | |
1b36a34b | 1625 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1626 | else if (!history_filename) |
1627 | { | |
1628 | /* We include the current directory so that if the user changes | |
1629 | directories the file written will be the same as the one | |
1630 | that was read. */ | |
a0b3c4fd | 1631 | #ifdef __MSDOS__ |
eb2f494a | 1632 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1633 | history_filename = concat (current_directory, "/_gdb_history", |
1634 | (char *)NULL); | |
a0b3c4fd | 1635 | #else |
1754f103 MK |
1636 | history_filename = concat (current_directory, "/.gdb_history", |
1637 | (char *)NULL); | |
a0b3c4fd | 1638 | #endif |
c5aa993b | 1639 | } |
9e0b60a8 JM |
1640 | read_history (history_filename); |
1641 | } | |
1642 | ||
920d2a44 | 1643 | static void |
ab821bc6 PA |
1644 | show_prompt (struct ui_file *file, int from_tty, |
1645 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1646 | { |
1647 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1648 | } | |
1649 | ||
1650 | static void | |
1651 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1652 | struct cmd_list_element *c, const char *value) | |
1653 | { | |
3e43a32a MS |
1654 | fprintf_filtered (file, _("Editing of command lines as " |
1655 | "they are typed is %s.\n"), | |
920d2a44 AC |
1656 | value); |
1657 | } | |
1658 | ||
1659 | static void | |
1660 | show_annotation_level (struct ui_file *file, int from_tty, | |
1661 | struct cmd_list_element *c, const char *value) | |
1662 | { | |
1663 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1664 | } | |
1665 | ||
1666 | static void | |
1667 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1668 | struct cmd_list_element *c, const char *value) | |
1669 | { | |
3e43a32a MS |
1670 | fprintf_filtered (file, _("Notification of completion for " |
1671 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1672 | value); |
1673 | } | |
6dea1fbd | 1674 | |
8d551b02 DE |
1675 | /* New values of the "data-directory" parameter are staged here. */ |
1676 | static char *staged_gdb_datadir; | |
1677 | ||
6dea1fbd JK |
1678 | /* "set" command for the gdb_datadir configuration variable. */ |
1679 | ||
1680 | static void | |
1681 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1682 | { | |
8d551b02 | 1683 | set_gdb_data_directory (staged_gdb_datadir); |
6dea1fbd JK |
1684 | observer_notify_gdb_datadir_changed (); |
1685 | } | |
1686 | ||
8d551b02 DE |
1687 | /* "show" command for the gdb_datadir configuration variable. */ |
1688 | ||
1689 | static void | |
1690 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
1691 | struct cmd_list_element *c, const char *value) | |
1692 | { | |
1693 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
1694 | gdb_datadir); | |
1695 | } | |
1696 | ||
97c85fc6 MB |
1697 | static void |
1698 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
1699 | { | |
1700 | /* We include the current directory so that if the user changes | |
1701 | directories the file written will be the same as the one | |
1702 | that was read. */ | |
1703 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1704 | history_filename = reconcat (history_filename, current_directory, "/", | |
1705 | history_filename, (char *) NULL); | |
1706 | } | |
1707 | ||
9e0b60a8 | 1708 | static void |
fba45db2 | 1709 | init_main (void) |
9e0b60a8 | 1710 | { |
ab821bc6 PA |
1711 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1712 | the DEFAULT_PROMPT is. */ | |
1713 | set_prompt (DEFAULT_PROMPT); | |
1714 | ||
362646f5 AC |
1715 | /* Set things up for annotation_level > 1, if the user ever decides |
1716 | to use it. */ | |
1717 | async_annotation_suffix = "prompt"; | |
362646f5 | 1718 | |
9e0b60a8 JM |
1719 | /* Set the important stuff up for command editing. */ |
1720 | command_editing_p = 1; | |
9e0b60a8 | 1721 | history_expansion_p = 0; |
452a569e | 1722 | write_history_p = 0; |
9e0b60a8 JM |
1723 | |
1724 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1725 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1726 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1727 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1728 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1729 | rl_readline_name = "gdb"; |
7cb3ec5e | 1730 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1731 | |
467d8519 TT |
1732 | /* The name for this defun comes from Bash, where it originated. |
1733 | 15 is Control-o, the same binding this function has in Bash. */ | |
1734 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1735 | ||
4d28ad1e | 1736 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 1737 | &top_prompt, |
3e43a32a MS |
1738 | _("Set gdb's prompt"), |
1739 | _("Show gdb's prompt"), | |
ab821bc6 PA |
1740 | NULL, NULL, |
1741 | show_prompt, | |
4d28ad1e | 1742 | &setlist, &showlist); |
9e0b60a8 | 1743 | |
1bedd215 | 1744 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1745 | Don't repeat this command.\nPrimarily \ |
1746 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1747 | hitting return.")); |
9e0b60a8 | 1748 | |
5bf193a2 AC |
1749 | add_setshow_boolean_cmd ("editing", class_support, |
1750 | &async_command_editing_p, _("\ | |
1751 | Set editing of command lines as they are typed."), _("\ | |
1752 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1753 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1754 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1755 | EMACS-like or VI-like commands like control-P or ESC."), |
1756 | set_async_editing_command, | |
920d2a44 | 1757 | show_async_command_editing_p, |
5bf193a2 AC |
1758 | &setlist, &showlist); |
1759 | ||
1760 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1761 | Set saving of the history record on exit."), _("\ | |
1762 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1763 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1764 | Without an argument, saving is enabled."), |
1765 | NULL, | |
920d2a44 | 1766 | show_write_history_p, |
5bf193a2 | 1767 | &sethistlist, &showhistlist); |
9e0b60a8 | 1768 | |
840a9a1f | 1769 | add_setshow_uinteger_cmd ("size", no_class, &history_size_setshow_var, _("\ |
4d28ad1e AC |
1770 | Set the size of the command history,"), _("\ |
1771 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
1772 | ie. the number of previous commands to keep a record of.\n\ |
1773 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
1774 | list is unlimited. This defaults to the value of the environment\n\ | |
1775 | variable \"HISTSIZE\", or to 256 if this variable is not set."), | |
883b9c6c YQ |
1776 | set_history_size_command, |
1777 | show_history_size, | |
1778 | &sethistlist, &showhistlist); | |
4d28ad1e AC |
1779 | |
1780 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1781 | Set the filename in which to record the command history"), _("\ | |
1782 | Show the filename in which to record the command history"), _("\ | |
1783 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 1784 | set_history_filename, |
920d2a44 | 1785 | show_history_filename, |
4d28ad1e | 1786 | &sethistlist, &showhistlist); |
9e0b60a8 | 1787 | |
e360902b | 1788 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
1789 | Set whether to confirm potentially dangerous operations."), _("\ |
1790 | Show whether to confirm potentially dangerous operations."), NULL, | |
1791 | NULL, | |
e360902b | 1792 | show_confirm, |
5bf193a2 | 1793 | &setlist, &showlist); |
9e0b60a8 | 1794 | |
85c07804 AC |
1795 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1796 | Set annotation_level."), _("\ | |
1797 | Show annotation_level."), _("\ | |
9e0b60a8 | 1798 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 1799 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 1800 | NULL, |
920d2a44 | 1801 | show_annotation_level, |
85c07804 | 1802 | &setlist, &showlist); |
362646f5 | 1803 | |
5bf193a2 AC |
1804 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1805 | &exec_done_display_p, _("\ | |
1806 | Set notification of completion for asynchronous execution commands."), _("\ | |
1807 | Show notification of completion for asynchronous execution commands."), _("\ | |
1808 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1809 | NULL, | |
920d2a44 | 1810 | show_exec_done_display_p, |
5bf193a2 | 1811 | &setlist, &showlist); |
b14b1491 TT |
1812 | |
1813 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 1814 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
1815 | _("Show GDB's data directory."), |
1816 | _("\ | |
1817 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 1818 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
1819 | &setlist, |
1820 | &showlist); | |
9e0b60a8 | 1821 | } |
64cdedad EZ |
1822 | |
1823 | void | |
1824 | gdb_init (char *argv0) | |
1825 | { | |
1826 | if (pre_init_ui_hook) | |
1827 | pre_init_ui_hook (); | |
1828 | ||
371d5dec | 1829 | /* Run the init function of each source file. */ |
64cdedad | 1830 | |
64cdedad EZ |
1831 | #ifdef __MSDOS__ |
1832 | /* Make sure we return to the original directory upon exit, come | |
1833 | what may, since the OS doesn't do that for us. */ | |
1834 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1835 | #endif | |
1836 | ||
371d5dec MS |
1837 | init_cmd_lists (); /* This needs to be done first. */ |
1838 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1839 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1840 | |
1841 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1842 | initialize_all_files (); |
9dea9163 | 1843 | |
6c95b8df PA |
1844 | /* This creates the current_program_space. Do this after all the |
1845 | _initialize_foo routines have had a chance to install their | |
1846 | per-sspace data keys. Also do this before | |
1847 | initialize_current_architecture is called, because it accesses | |
1848 | exec_bfd of the current program space. */ | |
1849 | initialize_progspace (); | |
1850 | initialize_inferiors (); | |
64cdedad EZ |
1851 | initialize_current_architecture (); |
1852 | init_cli_cmds(); | |
843b20dc | 1853 | initialize_event_loop (); |
371d5dec | 1854 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1855 | |
0ea3f30e DJ |
1856 | initialize_stdin_serial (); |
1857 | ||
362646f5 | 1858 | async_init_signals (); |
64cdedad | 1859 | |
371d5dec MS |
1860 | /* We need a default language for parsing expressions, so simple |
1861 | things like "set width 0" won't fail if no language is explicitly | |
1862 | set in a config file or implicitly set by reading an executable | |
1863 | during startup. */ | |
64cdedad | 1864 | set_language (language_c); |
371d5dec | 1865 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1866 | |
c378eb4e | 1867 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1868 | and it wants GDB to revert to the CLI, it should clear |
1869 | deprecated_init_ui_hook. */ | |
1870 | if (deprecated_init_ui_hook) | |
1871 | deprecated_init_ui_hook (argv0); | |
9dea9163 | 1872 | |
6dddc817 | 1873 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
1874 | installed. For example "info pretty-printer" needs the "info" |
1875 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
1876 | script initialization here. */ |
1877 | finish_ext_lang_initialization (); | |
64cdedad | 1878 | } |