Commit | Line | Data |
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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" | |
60250e8b | 28 | #include "exceptions.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" | |
c5aa993b | 37 | #include "terminal.h" /* For job_control. */ |
c906108c | 38 | #include "annotate.h" |
c5f0f3d0 | 39 | #include "completer.h" |
c906108c | 40 | #include "top.h" |
d4f3574e | 41 | #include "version.h" |
210661e7 | 42 | #include "serial.h" |
d16aafd8 | 43 | #include "doublest.h" |
f9c696d2 | 44 | #include "gdb_assert.h" |
f17517ea | 45 | #include "main.h" |
2e03ee74 | 46 | #include "event-loop.h" |
8ea051c5 | 47 | #include "gdbthread.h" |
6dddc817 | 48 | #include "extension.h" |
b4a14fd0 | 49 | #include "interps.h" |
6dea1fbd | 50 | #include "observer.h" |
bd712aed | 51 | #include "maint.h" |
97c85fc6 | 52 | #include "filenames.h" |
c906108c | 53 | |
371d5dec | 54 | /* readline include files. */ |
dbda9972 AC |
55 | #include "readline/readline.h" |
56 | #include "readline/history.h" | |
c906108c SS |
57 | |
58 | /* readline defines this. */ | |
59 | #undef savestring | |
60 | ||
61 | #include <sys/types.h> | |
c906108c | 62 | |
c2c6d25f | 63 | #include "event-top.h" |
0e9f083f | 64 | #include <string.h> |
53ce3c39 | 65 | #include <sys/stat.h> |
c906108c | 66 | #include <ctype.h> |
8b93c638 JM |
67 | #include "ui-out.h" |
68 | #include "cli-out.h" | |
2f9d54cf | 69 | #include "tracepoint.h" |
c906108c | 70 | |
ca7b0bbc TT |
71 | extern void initialize_all_files (void); |
72 | ||
95298e72 PM |
73 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
74 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
75 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
76 | ||
371d5dec | 77 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
78 | |
79 | #ifndef DEFAULT_PROMPT | |
80 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
81 | #endif |
82 | ||
e655c1a2 | 83 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 84 | |
e655c1a2 | 85 | const char gdbinit[] = GDBINIT; |
c906108c SS |
86 | |
87 | int inhibit_gdbinit = 0; | |
88 | ||
c906108c SS |
89 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
90 | ||
050a2e1d PA |
91 | /* Flag for whether we want to confirm potentially dangerous |
92 | operations. Default is yes. */ | |
93 | ||
e360902b | 94 | int confirm = 1; |
c906108c | 95 | |
920d2a44 | 96 | static void |
e360902b | 97 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
98 | struct cmd_list_element *c, const char *value) |
99 | { | |
3e43a32a MS |
100 | fprintf_filtered (file, _("Whether to confirm potentially " |
101 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
102 | value); |
103 | } | |
c906108c | 104 | |
371d5dec MS |
105 | /* stdio stream that command input is being read from. Set to stdin |
106 | normally. Set by source_command to the file we are sourcing. Set | |
107 | to NULL if we are executing a user-defined command or interacting | |
108 | via a GUI. */ | |
c906108c SS |
109 | |
110 | FILE *instream; | |
111 | ||
698ba934 DJ |
112 | /* Flag to indicate whether a user defined command is currently running. */ |
113 | ||
114 | int in_user_command; | |
115 | ||
c906108c SS |
116 | /* Current working directory. */ |
117 | ||
118 | char *current_directory; | |
119 | ||
120 | /* The directory name is actually stored here (usually). */ | |
121 | char gdb_dirbuf[1024]; | |
122 | ||
123 | /* Function to call before reading a command, if nonzero. | |
124 | The function receives two args: an input stream, | |
125 | and a prompt string. */ | |
126 | ||
507f3c78 | 127 | void (*window_hook) (FILE *, char *); |
c906108c | 128 | |
c906108c SS |
129 | /* Buffer used for reading command lines, and the size |
130 | allocated for it so far. */ | |
131 | ||
dc7eb48e PA |
132 | char *saved_command_line; |
133 | int saved_command_line_size = 100; | |
c906108c SS |
134 | |
135 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 136 | affects things like recording into the command history, commands |
c906108c SS |
137 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
138 | whatever) can issue its own commands and also send along commands | |
139 | from the user, and have the user not notice that the user interface | |
140 | is issuing commands too. */ | |
141 | int server_command; | |
142 | ||
371d5dec | 143 | /* Timeout limit for response from target. */ |
c906108c | 144 | |
ce808e91 AC |
145 | /* The default value has been changed many times over the years. It |
146 | was originally 5 seconds. But that was thought to be a long time | |
147 | to sit and wait, so it was changed to 2 seconds. That was thought | |
148 | to be plenty unless the connection was going through some terminal | |
149 | server or multiplexer or other form of hairy serial connection. | |
150 | ||
151 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
152 | it began being used in other remote-* targets. It appears that the | |
153 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 154 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
155 | |
156 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
157 | 20 seconds is far worse. This demonstrates the difficulty of using | |
158 | a single variable for all protocol timeouts. | |
159 | ||
160 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 161 | back to 2 seconds in 1999. */ |
ce808e91 AC |
162 | |
163 | int remote_timeout = 2; | |
c906108c SS |
164 | |
165 | /* Non-zero tells remote* modules to output debugging info. */ | |
166 | ||
167 | int remote_debug = 0; | |
168 | ||
6dd77b81 RH |
169 | /* Sbrk location on entry to main. Used for statistics only. */ |
170 | #ifdef HAVE_SBRK | |
171 | char *lim_at_start; | |
172 | #endif | |
173 | ||
c906108c SS |
174 | /* Hooks for alternate command interfaces. */ |
175 | ||
371d5dec MS |
176 | /* Called after most modules have been initialized, but before taking |
177 | users command file. | |
1ad24239 | 178 | |
371d5dec MS |
179 | If the UI fails to initialize and it wants GDB to continue using |
180 | the default UI, then it should clear this hook before returning. */ | |
c906108c | 181 | |
9a4105ab | 182 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a | 183 | |
371d5dec MS |
184 | /* This hook is called from within gdb's many mini-event loops which |
185 | could steal control from a real user interface's event loop. It | |
186 | returns non-zero if the user is requesting a detach, zero | |
187 | otherwise. */ | |
7a292a7a | 188 | |
98bbd631 | 189 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 190 | |
c906108c | 191 | |
c906108c SS |
192 | /* Called from print_frame_info to list the line we stopped in. */ |
193 | ||
371d5dec MS |
194 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
195 | int line, | |
196 | int stopline, | |
197 | int noerror); | |
c906108c SS |
198 | /* Replaces most of query. */ |
199 | ||
9a4105ab | 200 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
201 | |
202 | /* Replaces most of warning. */ | |
203 | ||
9a4105ab | 204 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 205 | |
9a4105ab AC |
206 | /* These three functions support getting lines of text from the user. |
207 | They are used in sequence. First deprecated_readline_begin_hook is | |
208 | called with a text string that might be (for example) a message for | |
209 | the user to type in a sequence of commands to be executed at a | |
210 | breakpoint. If this function calls back to a GUI, it might take | |
211 | this opportunity to pop up a text interaction window with this | |
212 | message. Next, deprecated_readline_hook is called with a prompt | |
213 | that is emitted prior to collecting the user input. It can be | |
214 | called multiple times. Finally, deprecated_readline_end_hook is | |
215 | called to notify the GUI that we are done with the interaction | |
216 | window and it can close it. */ | |
c906108c | 217 | |
9a4105ab AC |
218 | void (*deprecated_readline_begin_hook) (char *, ...); |
219 | char *(*deprecated_readline_hook) (char *); | |
220 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 221 | |
6426a772 | 222 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 223 | to or detached from an already running process. */ |
6426a772 | 224 | |
9a4105ab AC |
225 | void (*deprecated_attach_hook) (void); |
226 | void (*deprecated_detach_hook) (void); | |
6426a772 | 227 | |
371d5dec MS |
228 | /* Called during long calculations to allow GUI to repair window |
229 | damage, and to check for stop buttons, etc... */ | |
c906108c | 230 | |
9a4105ab | 231 | void (*deprecated_interactive_hook) (void); |
c906108c | 232 | |
c378eb4e | 233 | /* Tell the GUI someone changed the register REGNO. -1 means |
c906108c | 234 | that the caller does not know which register changed or |
371d5dec | 235 | that several registers have changed (see value_assign). */ |
9a4105ab | 236 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 237 | |
371d5dec MS |
238 | /* Called when going to wait for the target. Usually allows the GUI |
239 | to run while waiting for target events. */ | |
c906108c | 240 | |
9a4105ab | 241 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
242 | struct target_waitstatus *status, |
243 | int options); | |
c906108c | 244 | |
371d5dec MS |
245 | /* Used by UI as a wrapper around command execution. May do various |
246 | things like enabling/disabling buttons, etc... */ | |
c906108c | 247 | |
371d5dec MS |
248 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
249 | char *cmd, int from_tty); | |
c906108c SS |
250 | |
251 | /* Called when the current thread changes. Argument is thread id. */ | |
252 | ||
9a4105ab | 253 | void (*deprecated_context_hook) (int id); |
c906108c | 254 | |
c906108c SS |
255 | /* Handler for SIGHUP. */ |
256 | ||
257 | #ifdef SIGHUP | |
392a587b | 258 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 259 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 260 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
261 | /* static */ void |
262 | quit_cover (void) | |
c906108c | 263 | { |
e360902b PA |
264 | /* Stop asking user for confirmation --- we're exiting. This |
265 | prevents asking the user dumb questions. */ | |
266 | confirm = 0; | |
c5aa993b | 267 | quit_command ((char *) 0, 0); |
c906108c SS |
268 | } |
269 | #endif /* defined SIGHUP */ | |
270 | \f | |
7a9dd1b2 | 271 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 272 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 273 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 274 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 275 | /* static */ int source_line_number; |
c906108c SS |
276 | |
277 | /* Name of the file we are sourcing. */ | |
392a587b | 278 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 279 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 280 | event-top.c into this file, top.c. */ |
05159abe | 281 | /* static */ const char *source_file_name; |
c906108c | 282 | |
c906108c SS |
283 | /* Clean up on error during a "source" command (or execution of a |
284 | user-defined command). */ | |
285 | ||
d318976c | 286 | void |
e41a3b1a | 287 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
288 | { |
289 | /* Restore the previous input stream. */ | |
290 | instream = stream; | |
291 | } | |
292 | ||
293 | /* Read commands from STREAM. */ | |
294 | void | |
fba45db2 | 295 | read_command_file (FILE *stream) |
c906108c SS |
296 | { |
297 | struct cleanup *cleanups; | |
298 | ||
e41a3b1a | 299 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 300 | instream = stream; |
c5aa993b | 301 | command_loop (); |
c906108c SS |
302 | do_cleanups (cleanups); |
303 | } | |
304 | \f | |
507f3c78 | 305 | void (*pre_init_ui_hook) (void); |
c906108c | 306 | |
e41a3b1a | 307 | #ifdef __MSDOS__ |
70976b65 | 308 | static void |
e41a3b1a AC |
309 | do_chdir_cleanup (void *old_dir) |
310 | { | |
311 | chdir (old_dir); | |
b8c9b27d | 312 | xfree (old_dir); |
e41a3b1a AC |
313 | } |
314 | #endif | |
315 | ||
028d0ed5 | 316 | struct cleanup * |
4e5d721f DE |
317 | prepare_execute_command (void) |
318 | { | |
028d0ed5 TJB |
319 | struct value *mark; |
320 | struct cleanup *cleanup; | |
321 | ||
322 | mark = value_mark (); | |
323 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 324 | |
371d5dec MS |
325 | /* With multiple threads running while the one we're examining is |
326 | stopped, the dcache can get stale without us being able to detect | |
327 | it. For the duration of the command, though, use the dcache to | |
328 | help things like backtrace. */ | |
4e5d721f DE |
329 | if (non_stop) |
330 | target_dcache_invalidate (); | |
028d0ed5 TJB |
331 | |
332 | return cleanup; | |
4e5d721f DE |
333 | } |
334 | ||
77cce10f PA |
335 | /* Tell the user if the language has changed (except first time) after |
336 | executing a command. */ | |
337 | ||
338 | void | |
339 | check_frame_language_change (void) | |
340 | { | |
341 | static int warned = 0; | |
342 | ||
343 | /* First make sure that a new frame has been selected, in case the | |
344 | command or the hooks changed the program state. */ | |
345 | deprecated_safe_get_selected_frame (); | |
346 | if (current_language != expected_language) | |
347 | { | |
348 | if (language_mode == language_mode_auto && info_verbose) | |
349 | { | |
350 | language_info (1); /* Print what changed. */ | |
351 | } | |
352 | warned = 0; | |
353 | } | |
354 | ||
355 | /* Warn the user if the working language does not match the language | |
356 | of the current frame. Only warn the user if we are actually | |
357 | running the program, i.e. there is a stack. */ | |
358 | /* FIXME: This should be cacheing the frame and only running when | |
359 | the frame changes. */ | |
360 | ||
361 | if (has_stack_frames ()) | |
362 | { | |
363 | enum language flang; | |
364 | ||
365 | flang = get_frame_language (); | |
366 | if (!warned | |
367 | && flang != language_unknown | |
368 | && flang != current_language->la_language) | |
369 | { | |
370 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
371 | warned = 1; | |
372 | } | |
373 | } | |
374 | } | |
375 | ||
648bf667 | 376 | /* Execute the line P as a command, in the current user context. |
d318976c | 377 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 378 | |
d318976c FN |
379 | void |
380 | execute_command (char *p, int from_tty) | |
c906108c | 381 | { |
353d1d73 | 382 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 383 | struct cmd_list_element *c; |
d318976c | 384 | char *line; |
4e5d721f | 385 | |
353d1d73 | 386 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 387 | cleanup = prepare_execute_command (); |
c906108c | 388 | |
d318976c FN |
389 | /* Force cleanup of any alloca areas if using C alloca instead of |
390 | a builtin alloca. */ | |
391 | alloca (0); | |
c906108c | 392 | |
d318976c FN |
393 | /* This can happen when command_line_input hits end of file. */ |
394 | if (p == NULL) | |
5fe41fbf TT |
395 | { |
396 | do_cleanups (cleanup); | |
5ae85e44 | 397 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
398 | return; |
399 | } | |
c906108c | 400 | |
49d03eab | 401 | target_log_command (p); |
8b93c638 | 402 | |
d318976c FN |
403 | while (*p == ' ' || *p == '\t') |
404 | p++; | |
405 | if (*p) | |
8b93c638 | 406 | { |
6f937416 | 407 | const char *cmd = p; |
d318976c | 408 | char *arg; |
90e28950 TT |
409 | int was_sync = sync_execution; |
410 | ||
d318976c | 411 | line = p; |
8b93c638 | 412 | |
16026cd7 AS |
413 | /* If trace-commands is set then this will print this command. */ |
414 | print_command_trace (p); | |
415 | ||
6f937416 PA |
416 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
417 | p = (char *) cmd; | |
8b93c638 | 418 | |
d318976c FN |
419 | /* Pass null arg rather than an empty one. */ |
420 | arg = *p ? p : 0; | |
8b93c638 | 421 | |
9f60d481 AC |
422 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
423 | while the is_complete_command(cfunc) test is just plain | |
424 | bogus. They should both be replaced by a test of the form | |
425 | c->strip_trailing_white_space_p. */ | |
426 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
427 | can't be replaced with func. This is because it is the | |
428 | cfunc, and not the func, that has the value that the | |
429 | is_complete_command hack is testing for. */ | |
430 | /* Clear off trailing whitespace, except for set and complete | |
431 | command. */ | |
d318976c FN |
432 | if (arg |
433 | && c->type != set_cmd | |
bbaca940 | 434 | && !is_complete_command (c)) |
8b93c638 | 435 | { |
d318976c FN |
436 | p = arg + strlen (arg) - 1; |
437 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
438 | p--; | |
439 | *(p + 1) = '\0'; | |
8b93c638 JM |
440 | } |
441 | ||
371d5dec | 442 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 443 | execute_cmd_pre_hook (c); |
c906108c | 444 | |
1f2bdf09 | 445 | if (c->deprecated_warn_user) |
6f937416 | 446 | deprecated_cmd_warning (line); |
c906108c | 447 | |
7d74f244 DE |
448 | /* c->user_commands would be NULL in the case of a python command. */ |
449 | if (c->class == class_user && c->user_commands) | |
d318976c | 450 | execute_user_command (c, arg); |
5b9afe8a YQ |
451 | else if (c->type == set_cmd) |
452 | do_set_command (arg, from_tty, c); | |
453 | else if (c->type == show_cmd) | |
454 | do_show_command (arg, from_tty, c); | |
f436dd25 | 455 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 456 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 457 | else if (deprecated_call_command_hook) |
050a2e1d | 458 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 459 | else |
050a2e1d | 460 | cmd_func (c, arg, from_tty); |
b4a14fd0 PA |
461 | |
462 | /* If the interpreter is in sync mode (we're running a user | |
463 | command's list, running command hooks or similars), and we | |
464 | just ran a synchronous command that started the target, wait | |
465 | for that command to end. */ | |
90e28950 | 466 | if (!interpreter_async && !was_sync && sync_execution) |
b4a14fd0 PA |
467 | { |
468 | while (gdb_do_one_event () >= 0) | |
469 | if (!sync_execution) | |
470 | break; | |
471 | } | |
472 | ||
371d5dec | 473 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 474 | execute_cmd_post_hook (c); |
c906108c | 475 | |
c906108c SS |
476 | } |
477 | ||
77cce10f | 478 | check_frame_language_change (); |
028d0ed5 | 479 | |
353d1d73 JK |
480 | do_cleanups (cleanup); |
481 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
482 | } |
483 | ||
5da1313b JK |
484 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
485 | returned string, do not display it to the screen. BATCH_FLAG will be | |
486 | temporarily set to true. */ | |
487 | ||
488 | char * | |
489 | execute_command_to_string (char *p, int from_tty) | |
490 | { | |
491 | struct ui_file *str_file; | |
492 | struct cleanup *cleanup; | |
493 | char *retval; | |
494 | ||
495 | /* GDB_STDOUT should be better already restored during these | |
496 | restoration callbacks. */ | |
497 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
498 | ||
b4a14fd0 PA |
499 | make_cleanup_restore_integer (&interpreter_async); |
500 | interpreter_async = 0; | |
501 | ||
5da1313b JK |
502 | str_file = mem_fileopen (); |
503 | ||
8d4d924b | 504 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
505 | make_cleanup_restore_ui_file (&gdb_stdout); |
506 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
507 | make_cleanup_restore_ui_file (&gdb_stdlog); |
508 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
509 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
510 | ||
79a45e25 | 511 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
512 | warning (_("Current output protocol does not support redirection")); |
513 | else | |
79a45e25 | 514 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
515 | |
516 | gdb_stdout = str_file; | |
517 | gdb_stderr = str_file; | |
8d4d924b JK |
518 | gdb_stdlog = str_file; |
519 | gdb_stdtarg = str_file; | |
520 | gdb_stdtargerr = str_file; | |
5da1313b JK |
521 | |
522 | execute_command (p, from_tty); | |
523 | ||
524 | retval = ui_file_xstrdup (str_file, NULL); | |
525 | ||
526 | do_cleanups (cleanup); | |
527 | ||
528 | return retval; | |
529 | } | |
530 | ||
d318976c FN |
531 | /* Read commands from `instream' and execute them |
532 | until end of file or error reading instream. */ | |
c906108c | 533 | |
d318976c FN |
534 | void |
535 | command_loop (void) | |
c906108c | 536 | { |
d318976c FN |
537 | struct cleanup *old_chain; |
538 | char *command; | |
539 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 540 | |
d318976c FN |
541 | while (instream && !feof (instream)) |
542 | { | |
d318976c | 543 | if (window_hook && instream == stdin) |
ab821bc6 | 544 | (*window_hook) (instream, get_prompt ()); |
c906108c | 545 | |
522002f9 | 546 | clear_quit_flag (); |
d318976c FN |
547 | if (instream == stdin && stdin_is_tty) |
548 | reinitialize_more_filter (); | |
549 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 550 | |
c378eb4e | 551 | /* Get a command-line. This calls the readline package. */ |
d318976c | 552 | command = command_line_input (instream == stdin ? |
ab821bc6 | 553 | get_prompt () : (char *) NULL, |
d318976c | 554 | instream == stdin, "prompt"); |
d318976c | 555 | if (command == 0) |
5fe41fbf TT |
556 | { |
557 | do_cleanups (old_chain); | |
558 | return; | |
559 | } | |
c906108c | 560 | |
0f3bb72e | 561 | make_command_stats_cleanup (1); |
9e0b60a8 | 562 | |
d318976c | 563 | execute_command (command, instream == stdin); |
347bddb7 PA |
564 | |
565 | /* Do any commands attached to breakpoint we are stopped at. */ | |
566 | bpstat_do_actions (); | |
567 | ||
d318976c | 568 | do_cleanups (old_chain); |
9e0b60a8 | 569 | } |
9e0b60a8 | 570 | } |
d318976c | 571 | \f |
47a80e90 TT |
572 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
573 | set via prevent_dont_repeat. */ | |
574 | ||
575 | static int suppress_dont_repeat = 0; | |
576 | ||
d318976c | 577 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 578 | |
d318976c FN |
579 | void |
580 | dont_repeat (void) | |
9e0b60a8 | 581 | { |
47a80e90 | 582 | if (suppress_dont_repeat || server_command) |
d318976c | 583 | return; |
9e0b60a8 | 584 | |
d318976c | 585 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
586 | thing read from stdin in line and don't want to delete it. Null |
587 | lines won't repeat here in any case. */ | |
d318976c | 588 | if (instream == stdin) |
dc7eb48e | 589 | *saved_command_line = 0; |
9e0b60a8 | 590 | } |
47a80e90 TT |
591 | |
592 | /* Prevent dont_repeat from working, and return a cleanup that | |
593 | restores the previous state. */ | |
594 | ||
595 | struct cleanup * | |
596 | prevent_dont_repeat (void) | |
597 | { | |
598 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
599 | ||
600 | suppress_dont_repeat = 1; | |
601 | return result; | |
602 | } | |
603 | ||
d318976c FN |
604 | \f |
605 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 606 | |
d318976c FN |
607 | It prints PROMPT_ARG once at the start. |
608 | Action is compatible with "readline", e.g. space for the result is | |
609 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 610 | |
d318976c FN |
611 | A NULL return means end of file. */ |
612 | char * | |
613 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 614 | { |
d318976c FN |
615 | int c; |
616 | char *result; | |
617 | int input_index = 0; | |
618 | int result_size = 80; | |
9e0b60a8 | 619 | |
d318976c | 620 | if (prompt_arg) |
9e0b60a8 | 621 | { |
d318976c FN |
622 | /* Don't use a _filtered function here. It causes the assumed |
623 | character position to be off, since the newline we read from | |
624 | the user is not accounted for. */ | |
625 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
626 | gdb_flush (gdb_stdout); |
627 | } | |
628 | ||
d318976c | 629 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
630 | |
631 | while (1) | |
632 | { | |
d318976c FN |
633 | /* Read from stdin if we are executing a user defined command. |
634 | This is the right thing for prompt_for_continue, at least. */ | |
635 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 636 | |
d318976c | 637 | if (c == EOF) |
9e0b60a8 | 638 | { |
d318976c FN |
639 | if (input_index > 0) |
640 | /* The last line does not end with a newline. Return it, and | |
641 | if we are called again fgetc will still return EOF and | |
642 | we'll return NULL then. */ | |
9e0b60a8 | 643 | break; |
b8c9b27d | 644 | xfree (result); |
d318976c | 645 | return NULL; |
9e0b60a8 | 646 | } |
c5aa993b | 647 | |
d318976c | 648 | if (c == '\n') |
9e0b60a8 | 649 | { |
d318976c FN |
650 | if (input_index > 0 && result[input_index - 1] == '\r') |
651 | input_index--; | |
652 | break; | |
9e0b60a8 | 653 | } |
9e0b60a8 | 654 | |
d318976c FN |
655 | result[input_index++] = c; |
656 | while (input_index >= result_size) | |
9e0b60a8 | 657 | { |
d318976c FN |
658 | result_size *= 2; |
659 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 660 | } |
9e0b60a8 JM |
661 | } |
662 | ||
d318976c FN |
663 | result[input_index++] = '\0'; |
664 | return result; | |
9e0b60a8 JM |
665 | } |
666 | ||
d318976c FN |
667 | /* Variables which control command line editing and history |
668 | substitution. These variables are given default values at the end | |
669 | of this file. */ | |
670 | static int command_editing_p; | |
920d2a44 | 671 | |
d318976c FN |
672 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
673 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 674 | event-top.c into this file, top.c. */ |
920d2a44 | 675 | |
d318976c | 676 | /* static */ int history_expansion_p; |
920d2a44 | 677 | |
d318976c | 678 | static int write_history_p; |
920d2a44 AC |
679 | static void |
680 | show_write_history_p (struct ui_file *file, int from_tty, | |
681 | struct cmd_list_element *c, const char *value) | |
682 | { | |
683 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
684 | value); | |
685 | } | |
686 | ||
840a9a1f PA |
687 | /* The variable associated with the "set/show history size" |
688 | command. */ | |
689 | static unsigned int history_size_setshow_var; | |
690 | ||
920d2a44 AC |
691 | static void |
692 | show_history_size (struct ui_file *file, int from_tty, | |
693 | struct cmd_list_element *c, const char *value) | |
694 | { | |
695 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
696 | value); | |
697 | } | |
698 | ||
d318976c | 699 | static char *history_filename; |
920d2a44 AC |
700 | static void |
701 | show_history_filename (struct ui_file *file, int from_tty, | |
702 | struct cmd_list_element *c, const char *value) | |
703 | { | |
3e43a32a MS |
704 | fprintf_filtered (file, _("The filename in which to record " |
705 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
706 | value); |
707 | } | |
9e0b60a8 | 708 | |
b4f5539f | 709 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 710 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
711 | a single gdb invocation. At the ordinary top-level prompt we might |
712 | be using the async readline. That means we can't use | |
713 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
714 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
715 | `define'), gdb wants a synchronous response. |
716 | ||
717 | We used to call readline() directly, running it in synchronous | |
718 | mode. But mixing modes this way is not supported, and as of | |
719 | readline 5.x it no longer works; the arrow keys come unbound during | |
720 | the synchronous call. So we make a nested call into the event | |
721 | loop. That's what gdb_readline_wrapper is for. */ | |
722 | ||
723 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
724 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
725 | the user types Control-D for EOF. */ | |
726 | static int gdb_readline_wrapper_done; | |
727 | ||
728 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
729 | is seen. */ | |
730 | static char *gdb_readline_wrapper_result; | |
731 | ||
732 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
733 | to be called after the newline is processed (which will redisplay | |
734 | the prompt). But in gdb_readline_wrapper we will not get a new | |
735 | prompt until the next call, or until we return to the event loop. | |
736 | So we disable this hook around the newline and restore it before we | |
737 | return. */ | |
738 | static void (*saved_after_char_processing_hook) (void); | |
739 | ||
740 | /* This function is called when readline has seen a complete line of | |
741 | text. */ | |
742 | ||
743 | static void | |
744 | gdb_readline_wrapper_line (char *line) | |
745 | { | |
746 | gdb_assert (!gdb_readline_wrapper_done); | |
747 | gdb_readline_wrapper_result = line; | |
748 | gdb_readline_wrapper_done = 1; | |
749 | ||
750 | /* Prevent operate-and-get-next from acting too early. */ | |
751 | saved_after_char_processing_hook = after_char_processing_hook; | |
752 | after_char_processing_hook = NULL; | |
1b05479a DJ |
753 | |
754 | /* Prevent parts of the prompt from being redisplayed if annotations | |
755 | are enabled, and readline's state getting out of sync. */ | |
756 | if (async_command_editing_p) | |
757 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
758 | } |
759 | ||
760 | struct gdb_readline_wrapper_cleanup | |
761 | { | |
762 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
763 | int already_prompted_orig; |
764 | }; | |
765 | ||
766 | static void | |
767 | gdb_readline_wrapper_cleanup (void *arg) | |
768 | { | |
769 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
770 | ||
2e03ee74 | 771 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
772 | |
773 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
774 | input_handler = cleanup->handler_orig; | |
775 | gdb_readline_wrapper_result = NULL; | |
776 | gdb_readline_wrapper_done = 0; | |
777 | ||
778 | after_char_processing_hook = saved_after_char_processing_hook; | |
779 | saved_after_char_processing_hook = NULL; | |
780 | ||
781 | xfree (cleanup); | |
782 | } | |
783 | ||
b4f5539f TT |
784 | char * |
785 | gdb_readline_wrapper (char *prompt) | |
786 | { | |
2e03ee74 DJ |
787 | struct cleanup *back_to; |
788 | struct gdb_readline_wrapper_cleanup *cleanup; | |
789 | char *retval; | |
790 | ||
791 | cleanup = xmalloc (sizeof (*cleanup)); | |
792 | cleanup->handler_orig = input_handler; | |
793 | input_handler = gdb_readline_wrapper_line; | |
794 | ||
2e03ee74 DJ |
795 | cleanup->already_prompted_orig = rl_already_prompted; |
796 | ||
797 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
798 | ||
799 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 800 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
801 | rl_already_prompted = 1; |
802 | ||
362646f5 | 803 | if (after_char_processing_hook) |
2e03ee74 DJ |
804 | (*after_char_processing_hook) (); |
805 | gdb_assert (after_char_processing_hook == NULL); | |
806 | ||
e0dd0826 | 807 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
808 | if (gdb_readline_wrapper_done) |
809 | break; | |
b4f5539f | 810 | |
2e03ee74 DJ |
811 | retval = gdb_readline_wrapper_result; |
812 | do_cleanups (back_to); | |
813 | return retval; | |
b4f5539f TT |
814 | } |
815 | ||
9e0b60a8 | 816 | \f |
467d8519 TT |
817 | /* The current saved history number from operate-and-get-next. |
818 | This is -1 if not valid. */ | |
819 | static int operate_saved_history = -1; | |
820 | ||
821 | /* This is put on the appropriate hook and helps operate-and-get-next | |
822 | do its work. */ | |
b9362cc7 | 823 | static void |
5ae5f592 | 824 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
825 | { |
826 | int delta = where_history () - operate_saved_history; | |
5d502164 | 827 | |
467d8519 TT |
828 | /* The `key' argument to rl_get_previous_history is ignored. */ |
829 | rl_get_previous_history (delta, 0); | |
830 | operate_saved_history = -1; | |
831 | ||
832 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 833 | rl_redisplay (); |
467d8519 TT |
834 | |
835 | after_char_processing_hook = NULL; | |
836 | rl_pre_input_hook = NULL; | |
837 | } | |
838 | ||
839 | /* This is a gdb-local readline command handler. It accepts the | |
840 | current command line (like RET does) and, if this command was taken | |
841 | from the history, arranges for the next command in the history to | |
842 | appear on the command line when the prompt returns. | |
843 | We ignore the arguments. */ | |
844 | static int | |
845 | gdb_rl_operate_and_get_next (int count, int key) | |
846 | { | |
b5686e99 MK |
847 | int where; |
848 | ||
362646f5 AC |
849 | /* Use the async hook. */ |
850 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 851 | |
b5686e99 MK |
852 | /* Find the current line, and find the next line to use. */ |
853 | where = where_history(); | |
854 | ||
1fb2e2b5 PA |
855 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
856 | || (where >= history_length - 1)) | |
b5686e99 MK |
857 | operate_saved_history = where; |
858 | else | |
859 | operate_saved_history = where + 1; | |
860 | ||
467d8519 TT |
861 | return rl_newline (1, key); |
862 | } | |
863 | \f | |
d318976c FN |
864 | /* Read one line from the command input stream `instream' |
865 | into the local static buffer `linebuffer' (whose current length | |
866 | is `linelength'). | |
867 | The buffer is made bigger as necessary. | |
868 | Returns the address of the start of the line. | |
9e0b60a8 | 869 | |
d318976c | 870 | NULL is returned for end of file. |
9e0b60a8 | 871 | |
d318976c FN |
872 | *If* the instream == stdin & stdin is a terminal, the line read |
873 | is copied into the file line saver (global var char *line, | |
874 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 875 | |
d318976c FN |
876 | This routine either uses fancy command line editing or |
877 | simple input as the user has requested. */ | |
10689f25 | 878 | |
d318976c FN |
879 | char * |
880 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 881 | { |
d318976c FN |
882 | static char *linebuffer = 0; |
883 | static unsigned linelength = 0; | |
52f0bd74 | 884 | char *p; |
d318976c FN |
885 | char *p1; |
886 | char *rl; | |
887 | char *local_prompt = prompt_arg; | |
888 | char *nline; | |
889 | char got_eof = 0; | |
890 | ||
891 | /* The annotation suffix must be non-NULL. */ | |
892 | if (annotation_suffix == NULL) | |
893 | annotation_suffix = ""; | |
9e0b60a8 | 894 | |
d318976c FN |
895 | if (annotation_level > 1 && instream == stdin) |
896 | { | |
897 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
898 | + strlen (annotation_suffix) + 40); | |
899 | if (prompt_arg == NULL) | |
900 | local_prompt[0] = '\0'; | |
901 | else | |
902 | strcpy (local_prompt, prompt_arg); | |
903 | strcat (local_prompt, "\n\032\032"); | |
904 | strcat (local_prompt, annotation_suffix); | |
905 | strcat (local_prompt, "\n"); | |
906 | } | |
9e0b60a8 | 907 | |
d318976c | 908 | if (linebuffer == 0) |
9e0b60a8 | 909 | { |
d318976c FN |
910 | linelength = 80; |
911 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 912 | } |
9e0b60a8 | 913 | |
d318976c | 914 | p = linebuffer; |
9e0b60a8 | 915 | |
d318976c FN |
916 | /* Control-C quits instantly if typed while in this loop |
917 | since it should not wait until the user types a newline. */ | |
918 | immediate_quit++; | |
522002f9 | 919 | QUIT; |
d318976c FN |
920 | #ifdef STOP_SIGNAL |
921 | if (job_control) | |
362646f5 | 922 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
923 | #endif |
924 | ||
925 | while (1) | |
9e0b60a8 | 926 | { |
371d5dec MS |
927 | /* Make sure that all output has been output. Some machines may |
928 | let you get away with leaving out some of the gdb_flush, but | |
929 | not all. */ | |
d318976c FN |
930 | wrap_here (""); |
931 | gdb_flush (gdb_stdout); | |
932 | gdb_flush (gdb_stderr); | |
933 | ||
934 | if (source_file_name != NULL) | |
637537d0 | 935 | ++source_line_number; |
d318976c FN |
936 | |
937 | if (annotation_level > 1 && instream == stdin) | |
938 | { | |
306d9ac5 DC |
939 | puts_unfiltered ("\n\032\032pre-"); |
940 | puts_unfiltered (annotation_suffix); | |
941 | puts_unfiltered ("\n"); | |
d318976c FN |
942 | } |
943 | ||
944 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 945 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 946 | { |
9a4105ab | 947 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 948 | } |
698ba934 | 949 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 950 | { |
b4f5539f | 951 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 952 | } |
9e0b60a8 | 953 | else |
d318976c FN |
954 | { |
955 | rl = gdb_readline (local_prompt); | |
956 | } | |
9e0b60a8 | 957 | |
d318976c FN |
958 | if (annotation_level > 1 && instream == stdin) |
959 | { | |
306d9ac5 DC |
960 | puts_unfiltered ("\n\032\032post-"); |
961 | puts_unfiltered (annotation_suffix); | |
962 | puts_unfiltered ("\n"); | |
d318976c | 963 | } |
9e0b60a8 | 964 | |
d318976c | 965 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 966 | { |
d318976c FN |
967 | got_eof = 1; |
968 | break; | |
9e0b60a8 | 969 | } |
d318976c FN |
970 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
971 | { | |
972 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
973 | nline = (char *) xrealloc (linebuffer, linelength); | |
974 | p += nline - linebuffer; | |
975 | linebuffer = nline; | |
976 | } | |
977 | p1 = rl; | |
978 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 979 | if this was just a newline). */ |
d318976c FN |
980 | while (*p1) |
981 | *p++ = *p1++; | |
9e0b60a8 | 982 | |
b8c9b27d | 983 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 984 | |
d318976c FN |
985 | if (p == linebuffer || *(p - 1) != '\\') |
986 | break; | |
9e0b60a8 | 987 | |
d318976c FN |
988 | p--; /* Put on top of '\'. */ |
989 | local_prompt = (char *) 0; | |
990 | } | |
9e0b60a8 | 991 | |
d318976c FN |
992 | #ifdef STOP_SIGNAL |
993 | if (job_control) | |
994 | signal (STOP_SIGNAL, SIG_DFL); | |
995 | #endif | |
996 | immediate_quit--; | |
9e0b60a8 | 997 | |
d318976c FN |
998 | if (got_eof) |
999 | return NULL; | |
9e0b60a8 | 1000 | |
d318976c FN |
1001 | #define SERVER_COMMAND_LENGTH 7 |
1002 | server_command = | |
1003 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1004 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1005 | if (server_command) |
9e0b60a8 | 1006 | { |
d318976c FN |
1007 | /* Note that we don't set `line'. Between this and the check in |
1008 | dont_repeat, this insures that repeating will still do the | |
1009 | right thing. */ | |
1010 | *p = '\0'; | |
1011 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1012 | } |
9e0b60a8 | 1013 | |
d318976c FN |
1014 | /* Do history expansion if that is wished. */ |
1015 | if (history_expansion_p && instream == stdin | |
1016 | && ISATTY (instream)) | |
1017 | { | |
1018 | char *history_value; | |
1019 | int expanded; | |
9e0b60a8 | 1020 | |
d318976c FN |
1021 | *p = '\0'; /* Insert null now. */ |
1022 | expanded = history_expand (linebuffer, &history_value); | |
1023 | if (expanded) | |
1024 | { | |
1025 | /* Print the changes. */ | |
1026 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1027 | |
d318976c FN |
1028 | /* If there was an error, call this function again. */ |
1029 | if (expanded < 0) | |
1030 | { | |
b8c9b27d | 1031 | xfree (history_value); |
3e43a32a MS |
1032 | return command_line_input (prompt_arg, repeat, |
1033 | annotation_suffix); | |
d318976c FN |
1034 | } |
1035 | if (strlen (history_value) > linelength) | |
1036 | { | |
1037 | linelength = strlen (history_value) + 1; | |
1038 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1039 | } | |
1040 | strcpy (linebuffer, history_value); | |
1041 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1042 | } |
91d2803c | 1043 | xfree (history_value); |
d318976c | 1044 | } |
9e0b60a8 | 1045 | |
371d5dec MS |
1046 | /* If we just got an empty line, and that is supposed to repeat the |
1047 | previous command, return the value in the global buffer. */ | |
d318976c | 1048 | if (repeat && p == linebuffer) |
dc7eb48e | 1049 | return saved_command_line; |
d318976c FN |
1050 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1051 | if (repeat && !*p1) | |
dc7eb48e | 1052 | return saved_command_line; |
9e0b60a8 | 1053 | |
d318976c | 1054 | *p = 0; |
9e0b60a8 | 1055 | |
d318976c | 1056 | /* Add line to history if appropriate. */ |
840da61a | 1057 | if (*linebuffer && input_from_terminal_p ()) |
d318976c | 1058 | add_history (linebuffer); |
9e0b60a8 | 1059 | |
d318976c FN |
1060 | /* Note: lines consisting solely of comments are added to the command |
1061 | history. This is useful when you type a command, and then | |
1062 | realize you don't want to execute it quite yet. You can comment | |
1063 | out the command and then later fetch it from the value history | |
1064 | and remove the '#'. The kill ring is probably better, but some | |
1065 | people are in the habit of commenting things out. */ | |
1066 | if (*p1 == '#') | |
371d5dec | 1067 | *p1 = '\0'; /* Found a comment. */ |
9e0b60a8 | 1068 | |
d318976c FN |
1069 | /* Save into global buffer if appropriate. */ |
1070 | if (repeat) | |
1071 | { | |
dc7eb48e | 1072 | if (linelength > saved_command_line_size) |
d318976c | 1073 | { |
dc7eb48e PA |
1074 | saved_command_line = xrealloc (saved_command_line, linelength); |
1075 | saved_command_line_size = linelength; | |
d318976c | 1076 | } |
dc7eb48e PA |
1077 | strcpy (saved_command_line, linebuffer); |
1078 | return saved_command_line; | |
d318976c | 1079 | } |
9e0b60a8 | 1080 | |
d318976c | 1081 | return linebuffer; |
9e0b60a8 JM |
1082 | } |
1083 | \f | |
371d5dec | 1084 | /* Print the GDB banner. */ |
9e0b60a8 | 1085 | void |
fba45db2 | 1086 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1087 | { |
1088 | /* From GNU coding standards, first line is meant to be easy for a | |
1089 | program to parse, and is just canonical program name and version | |
371d5dec | 1090 | number, which starts after last space. */ |
9e0b60a8 | 1091 | |
c16158bc | 1092 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1093 | |
371d5dec | 1094 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1095 | |
3e43a32a | 1096 | fprintf_filtered (stream, |
28498c42 | 1097 | "Copyright (C) 2014 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1098 | |
1099 | /* Following the copyright is a brief statement that the program is | |
1100 | free software, that users are free to copy and change it on | |
1101 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1102 | there is no warranty. */ |
9e0b60a8 JM |
1103 | |
1104 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1105 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1106 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1107 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1108 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1109 | |
371d5dec | 1110 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1111 | |
1112 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1113 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1114 | { |
3e43a32a MS |
1115 | fprintf_filtered (stream, "--host=%s --target=%s", |
1116 | host_name, target_name); | |
9e0b60a8 JM |
1117 | } |
1118 | else | |
1119 | { | |
1120 | fprintf_filtered (stream, "%s", host_name); | |
1121 | } | |
6eaaf48b EZ |
1122 | fprintf_filtered (stream, "\".\n\ |
1123 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1124 | |
1125 | if (REPORT_BUGS_TO[0]) | |
1126 | { | |
6eaaf48b | 1127 | fprintf_filtered (stream, |
c16158bc | 1128 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1129 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1130 | } |
1cf55f60 PM |
1131 | fprintf_filtered (stream, |
1132 | _("Find the GDB manual and other documentation \ | |
1133 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1134 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1135 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1136 | commands related to \"word\".")); |
9e0b60a8 | 1137 | } |
6eaaf48b EZ |
1138 | |
1139 | /* Print the details of GDB build-time configuration. */ | |
1140 | void | |
1141 | print_gdb_configuration (struct ui_file *stream) | |
1142 | { | |
1143 | fprintf_filtered (stream, _("\ | |
1144 | This GDB was configured as follows:\n\ | |
1145 | configure --host=%s --target=%s\n\ | |
1146 | "), host_name, target_name); | |
1147 | fprintf_filtered (stream, _("\ | |
1148 | --with-auto-load-dir=%s\n\ | |
1149 | --with-auto-load-safe-path=%s\n\ | |
1150 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1151 | #if HAVE_LIBEXPAT | |
1152 | fprintf_filtered (stream, _("\ | |
1153 | --with-expat\n\ | |
1154 | ")); | |
1155 | #else | |
1156 | fprintf_filtered (stream, _("\ | |
1157 | --without-expat\n\ | |
1158 | ")); | |
1159 | #endif | |
1160 | if (GDB_DATADIR[0]) | |
1161 | fprintf_filtered (stream, _("\ | |
1162 | --with-gdb-datadir=%s%s\n\ | |
1163 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1164 | #ifdef ICONV_BIN | |
1165 | fprintf_filtered (stream, _("\ | |
1166 | --with-iconv-bin=%s%s\n\ | |
1167 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1168 | #endif | |
1169 | if (JIT_READER_DIR[0]) | |
1170 | fprintf_filtered (stream, _("\ | |
1171 | --with-jit-reader-dir=%s%s\n\ | |
1172 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1173 | #if HAVE_LIBUNWIND_IA64_H | |
1174 | fprintf_filtered (stream, _("\ | |
1175 | --with-libunwind-ia64\n\ | |
1176 | ")); | |
1177 | #else | |
1178 | fprintf_filtered (stream, _("\ | |
1179 | --without-libunwind-ia64\n\ | |
1180 | ")); | |
1181 | #endif | |
1182 | #if HAVE_LIBLZMA | |
1183 | fprintf_filtered (stream, _("\ | |
1184 | --with-lzma\n\ | |
1185 | ")); | |
1186 | #else | |
1187 | fprintf_filtered (stream, _("\ | |
1188 | --without-lzma\n\ | |
1189 | ")); | |
1190 | #endif | |
1191 | #ifdef WITH_PYTHON_PATH | |
1192 | fprintf_filtered (stream, _("\ | |
1193 | --with-python=%s%s\n\ | |
1194 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1195 | #endif | |
1196 | #ifdef RELOC_SRCDIR | |
1197 | fprintf_filtered (stream, _("\ | |
1198 | --with-relocated-sources=%s\n\ | |
1199 | "), RELOC_SRCDIR); | |
1200 | #endif | |
1201 | if (DEBUGDIR[0]) | |
1202 | fprintf_filtered (stream, _("\ | |
1203 | --with-separate-debug-dir=%s%s\n\ | |
1204 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1205 | if (TARGET_SYSTEM_ROOT[0]) | |
1206 | fprintf_filtered (stream, _("\ | |
1207 | --with-sysroot=%s%s\n\ | |
1208 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1209 | if (SYSTEM_GDBINIT[0]) | |
1210 | fprintf_filtered (stream, _("\ | |
1211 | --with-system-gdbinit=%s%s\n\ | |
1212 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
1213 | #if HAVE_ZLIB_H | |
1214 | fprintf_filtered (stream, _("\ | |
1215 | --with-zlib\n\ | |
1216 | ")); | |
1217 | #else | |
1218 | fprintf_filtered (stream, _("\ | |
1219 | --without-zlib\n\ | |
1220 | ")); | |
1221 | #endif | |
ab116149 YQ |
1222 | #if HAVE_LIBBABELTRACE |
1223 | fprintf_filtered (stream, _("\ | |
1224 | --with-babeltrace\n\ | |
1225 | ")); | |
1226 | #else | |
1227 | fprintf_filtered (stream, _("\ | |
1228 | --without-babeltrace\n\ | |
1229 | ")); | |
1230 | #endif | |
48d1d6f5 EZ |
1231 | /* We assume "relocatable" will be printed at least once, thus we always |
1232 | print this text. It's a reasonably safe assumption for now. */ | |
1233 | fprintf_filtered (stream, _("\n\ | |
1234 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1235 | tree, and GDB will still find it.)\n\ | |
1236 | ")); | |
6eaaf48b | 1237 | } |
9e0b60a8 | 1238 | \f |
95298e72 | 1239 | |
ab821bc6 PA |
1240 | /* The current top level prompt, settable with "set prompt", and/or |
1241 | with the python `gdb.prompt_hook' hook. */ | |
1242 | static char *top_prompt; | |
9e0b60a8 | 1243 | |
ab821bc6 | 1244 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1245 | |
1246 | char * | |
ab821bc6 | 1247 | get_prompt (void) |
95298e72 | 1248 | { |
ab821bc6 | 1249 | return top_prompt; |
95298e72 PM |
1250 | } |
1251 | ||
ab821bc6 | 1252 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1253 | |
1254 | void | |
ab821bc6 | 1255 | set_prompt (const char *s) |
95298e72 | 1256 | { |
ab821bc6 | 1257 | char *p = xstrdup (s); |
95298e72 | 1258 | |
ab821bc6 PA |
1259 | xfree (top_prompt); |
1260 | top_prompt = p; | |
9e0b60a8 | 1261 | } |
9e0b60a8 | 1262 | \f |
c5aa993b | 1263 | |
b0abbc58 | 1264 | struct qt_args |
9e0b60a8 | 1265 | { |
b0abbc58 JJ |
1266 | char *args; |
1267 | int from_tty; | |
1268 | }; | |
9e0b60a8 | 1269 | |
54a012c9 PA |
1270 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1271 | inferior, depending on how we originally gained control of it. */ | |
1272 | ||
1273 | static int | |
1274 | kill_or_detach (struct inferior *inf, void *args) | |
1275 | { | |
1276 | struct qt_args *qt = args; | |
1277 | struct thread_info *thread; | |
1278 | ||
6c95b8df PA |
1279 | if (inf->pid == 0) |
1280 | return 0; | |
1281 | ||
b8fa0bfa PA |
1282 | thread = any_thread_of_process (inf->pid); |
1283 | if (thread != NULL) | |
9e0b60a8 | 1284 | { |
54a012c9 | 1285 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1286 | |
1287 | /* Leave core files alone. */ | |
1288 | if (target_has_execution) | |
1289 | { | |
1290 | if (inf->attach_flag) | |
1291 | target_detach (qt->args, qt->from_tty); | |
1292 | else | |
1293 | target_kill (); | |
1294 | } | |
9e0b60a8 JM |
1295 | } |
1296 | ||
54a012c9 PA |
1297 | return 0; |
1298 | } | |
1299 | ||
b8fa0bfa PA |
1300 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1301 | will do to each inferior on a "quit". ARG points to a struct | |
1302 | ui_out where output is to be collected. */ | |
1303 | ||
1304 | static int | |
1305 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1306 | { | |
1307 | struct ui_file *stb = arg; | |
1308 | ||
6c95b8df PA |
1309 | if (inf->pid == 0) |
1310 | return 0; | |
1311 | ||
b8fa0bfa PA |
1312 | if (inf->attach_flag) |
1313 | fprintf_filtered (stb, | |
1314 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1315 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1316 | else | |
1317 | fprintf_filtered (stb, | |
1318 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1319 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1320 | ||
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | /* If necessary, make the user confirm that we should quit. Return | |
1325 | non-zero if we should quit, zero if we shouldn't. */ | |
1326 | ||
1327 | int | |
1328 | quit_confirm (void) | |
1329 | { | |
1330 | struct ui_file *stb; | |
1331 | struct cleanup *old_chain; | |
1332 | char *str; | |
1333 | int qr; | |
1334 | ||
1335 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1336 | if (!have_live_inferiors ()) | |
1337 | return 1; | |
1338 | ||
1339 | /* Build the query string as a single string. */ | |
1340 | stb = mem_fileopen (); | |
1341 | old_chain = make_cleanup_ui_file_delete (stb); | |
1342 | ||
5a5d8ead AB |
1343 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); |
1344 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1345 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
b8fa0bfa PA |
1346 | |
1347 | str = ui_file_xstrdup (stb, NULL); | |
1348 | make_cleanup (xfree, str); | |
1349 | ||
1350 | qr = query ("%s", str); | |
1351 | do_cleanups (old_chain); | |
1352 | return qr; | |
1353 | } | |
1354 | ||
b0abbc58 JJ |
1355 | /* Quit without asking for confirmation. */ |
1356 | ||
1357 | void | |
1358 | quit_force (char *args, int from_tty) | |
1359 | { | |
1360 | int exit_code = 0; | |
365c70b1 | 1361 | struct qt_args qt; |
2f9d54cf | 1362 | volatile struct gdb_exception ex; |
b0abbc58 JJ |
1363 | |
1364 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1365 | value of that expression. */ |
b0abbc58 JJ |
1366 | if (args) |
1367 | { | |
1368 | struct value *val = parse_and_eval (args); | |
1369 | ||
1370 | exit_code = (int) value_as_long (val); | |
1371 | } | |
4b0ad762 AS |
1372 | else if (return_child_result) |
1373 | exit_code = return_child_result_value; | |
b0abbc58 | 1374 | |
365c70b1 JJ |
1375 | qt.args = args; |
1376 | qt.from_tty = from_tty; | |
1377 | ||
2f9d54cf PA |
1378 | /* Wrappers to make the code below a bit more readable. */ |
1379 | #define DO_TRY \ | |
1380 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1381 | ||
1382 | #define DO_PRINT_EX \ | |
1383 | if (ex.reason < 0) \ | |
1384 | exception_print (gdb_stderr, ex) | |
1385 | ||
b0abbc58 | 1386 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1387 | |
1388 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
1389 | DO_TRY | |
1390 | { | |
1391 | disconnect_tracing (); | |
1392 | iterate_over_inferiors (kill_or_detach, &qt); | |
1393 | } | |
1394 | DO_PRINT_EX; | |
1395 | ||
1396 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1397 | them all out. */ | |
1398 | DO_TRY | |
1399 | { | |
1400 | pop_all_targets (); | |
1401 | } | |
1402 | DO_PRINT_EX; | |
1403 | ||
1404 | /* Save the history information if it is appropriate to do so. */ | |
1405 | DO_TRY | |
1406 | { | |
35ab155d MB |
1407 | if (write_history_p && history_filename |
1408 | && input_from_terminal_p ()) | |
2f9d54cf PA |
1409 | write_history (history_filename); |
1410 | } | |
1411 | DO_PRINT_EX; | |
1412 | ||
1413 | /* Do any final cleanups before exiting. */ | |
1414 | DO_TRY | |
1415 | { | |
1416 | do_final_cleanups (all_cleanups ()); | |
1417 | } | |
1418 | DO_PRINT_EX; | |
b0abbc58 | 1419 | |
9e0b60a8 JM |
1420 | exit (exit_code); |
1421 | } | |
1422 | ||
698ba934 DJ |
1423 | /* Returns whether GDB is running on a terminal and input is |
1424 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1425 | |
1426 | int | |
fba45db2 | 1427 | input_from_terminal_p (void) |
9e0b60a8 | 1428 | { |
c63a1f86 JK |
1429 | if (batch_flag) |
1430 | return 0; | |
1431 | ||
698ba934 DJ |
1432 | if (gdb_has_a_terminal () && instream == stdin) |
1433 | return 1; | |
1434 | ||
1435 | /* If INSTREAM is unset, and we are not in a user command, we | |
1436 | must be in Insight. That's like having a terminal, for our | |
1437 | purposes. */ | |
1438 | if (instream == NULL && !in_user_command) | |
1439 | return 1; | |
1440 | ||
1441 | return 0; | |
9e0b60a8 JM |
1442 | } |
1443 | \f | |
9e0b60a8 | 1444 | static void |
fba45db2 | 1445 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1446 | { |
dc7eb48e PA |
1447 | /* Can't call dont_repeat here because we're not necessarily reading |
1448 | from stdin. */ | |
1449 | *saved_command_line = 0; | |
9e0b60a8 JM |
1450 | } |
1451 | \f | |
1452 | /* Functions to manipulate command line editing control variables. */ | |
1453 | ||
1454 | /* Number of commands to print in each call to show_commands. */ | |
1455 | #define Hist_print 10 | |
d318976c | 1456 | void |
fba45db2 | 1457 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1458 | { |
1459 | /* Index for history commands. Relative to history_base. */ | |
1460 | int offset; | |
1461 | ||
1462 | /* Number of the history entry which we are planning to display next. | |
1463 | Relative to history_base. */ | |
1464 | static int num = 0; | |
1465 | ||
9e0b60a8 | 1466 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1467 | |
1468 | if (args) | |
1469 | { | |
1470 | if (args[0] == '+' && args[1] == '\0') | |
1471 | /* "info editing +" should print from the stored position. */ | |
1472 | ; | |
1473 | else | |
1474 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1475 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1476 | } |
1477 | /* "show commands" means print the last Hist_print commands. */ | |
1478 | else | |
1479 | { | |
840a9a1f | 1480 | num = history_length - Hist_print; |
9e0b60a8 JM |
1481 | } |
1482 | ||
1483 | if (num < 0) | |
1484 | num = 0; | |
1485 | ||
1486 | /* If there are at least Hist_print commands, we want to display the last | |
1487 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1488 | if (history_length - num < Hist_print) |
9e0b60a8 | 1489 | { |
840a9a1f | 1490 | num = history_length - Hist_print; |
9e0b60a8 JM |
1491 | if (num < 0) |
1492 | num = 0; | |
1493 | } | |
1494 | ||
840a9a1f PA |
1495 | for (offset = num; |
1496 | offset < num + Hist_print && offset < history_length; | |
1497 | offset++) | |
9e0b60a8 JM |
1498 | { |
1499 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1500 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1501 | } |
1502 | ||
1503 | /* The next command we want to display is the next one that we haven't | |
1504 | displayed yet. */ | |
1505 | num += Hist_print; | |
1506 | ||
1507 | /* If the user repeats this command with return, it should do what | |
1508 | "show commands +" does. This is unnecessary if arg is null, | |
1509 | because "show commands +" is not useful after "show commands". */ | |
1510 | if (from_tty && args) | |
1511 | { | |
1512 | args[0] = '+'; | |
1513 | args[1] = '\0'; | |
1514 | } | |
1515 | } | |
1516 | ||
1517 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1518 | static void |
fba45db2 | 1519 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1520 | { |
840a9a1f PA |
1521 | /* Readline's history interface works with 'int', so it can only |
1522 | handle history sizes up to INT_MAX. The command itself is | |
1523 | uinteger, so UINT_MAX means "unlimited", but we only get that if | |
1524 | the user does "set history size 0" -- "set history size <UINT_MAX>" | |
1525 | throws out-of-range. */ | |
1526 | if (history_size_setshow_var > INT_MAX | |
1527 | && history_size_setshow_var != UINT_MAX) | |
9e0b60a8 | 1528 | { |
840a9a1f PA |
1529 | unsigned int new_value = history_size_setshow_var; |
1530 | ||
1531 | /* Restore previous value before throwing. */ | |
1532 | if (history_is_stifled ()) | |
1533 | history_size_setshow_var = history_max_entries; | |
1534 | else | |
1535 | history_size_setshow_var = UINT_MAX; | |
1536 | ||
1537 | error (_("integer %u out of range"), new_value); | |
9e0b60a8 | 1538 | } |
840a9a1f PA |
1539 | |
1540 | /* Commit the new value to readline's history. */ | |
1541 | if (history_size_setshow_var == UINT_MAX) | |
1542 | unstifle_history (); | |
883b9c6c | 1543 | else |
840a9a1f | 1544 | stifle_history (history_size_setshow_var); |
9e0b60a8 JM |
1545 | } |
1546 | ||
d318976c | 1547 | void |
fba45db2 | 1548 | set_history (char *args, int from_tty) |
9e0b60a8 | 1549 | { |
3e43a32a MS |
1550 | printf_unfiltered (_("\"set history\" must be followed " |
1551 | "by the name of a history subcommand.\n")); | |
9e0b60a8 JM |
1552 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1553 | } | |
1554 | ||
d318976c | 1555 | void |
fba45db2 | 1556 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1557 | { |
1558 | cmd_show_list (showhistlist, from_tty, ""); | |
1559 | } | |
1560 | ||
371d5dec | 1561 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1562 | |
1563 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1564 | void |
fba45db2 | 1565 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1566 | { |
6f937416 | 1567 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1568 | struct cmd_list_element *showcmd; |
1569 | ||
1570 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1571 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1572 | |
1573 | if (info_verbose) | |
1574 | { | |
1575 | c->doc = "Set verbose printing of informational messages."; | |
1576 | showcmd->doc = "Show verbose printing of informational messages."; | |
1577 | } | |
1578 | else | |
1579 | { | |
1580 | c->doc = "Set verbosity."; | |
1581 | showcmd->doc = "Show verbosity."; | |
1582 | } | |
1583 | } | |
1584 | ||
9e0b60a8 | 1585 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1586 | have been read so that the user can change the history file via his |
1587 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1588 | overrides all of this. */ | |
9e0b60a8 JM |
1589 | |
1590 | void | |
fba45db2 | 1591 | init_history (void) |
9e0b60a8 JM |
1592 | { |
1593 | char *tmpenv; | |
1594 | ||
1595 | tmpenv = getenv ("HISTSIZE"); | |
1596 | if (tmpenv) | |
840a9a1f PA |
1597 | { |
1598 | int var; | |
1599 | ||
1600 | var = atoi (tmpenv); | |
1601 | if (var < 0) | |
1602 | { | |
1603 | /* Prefer ending up with no history rather than overflowing | |
1604 | readline's history interface, which uses signed 'int' | |
1605 | everywhere. */ | |
1606 | var = 0; | |
1607 | } | |
1608 | ||
1609 | history_size_setshow_var = var; | |
1610 | } | |
1611 | /* If the init file hasn't set a size yet, pick the default. */ | |
1612 | else if (history_size_setshow_var == 0) | |
1613 | history_size_setshow_var = 256; | |
9e0b60a8 | 1614 | |
840a9a1f PA |
1615 | /* Note that unlike "set history size 0", "HISTSIZE=0" really sets |
1616 | the history size to 0... */ | |
1617 | stifle_history (history_size_setshow_var); | |
9e0b60a8 JM |
1618 | |
1619 | tmpenv = getenv ("GDBHISTFILE"); | |
1620 | if (tmpenv) | |
1b36a34b | 1621 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1622 | else if (!history_filename) |
1623 | { | |
1624 | /* We include the current directory so that if the user changes | |
1625 | directories the file written will be the same as the one | |
1626 | that was read. */ | |
a0b3c4fd | 1627 | #ifdef __MSDOS__ |
eb2f494a | 1628 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1629 | history_filename = concat (current_directory, "/_gdb_history", |
1630 | (char *)NULL); | |
a0b3c4fd | 1631 | #else |
1754f103 MK |
1632 | history_filename = concat (current_directory, "/.gdb_history", |
1633 | (char *)NULL); | |
a0b3c4fd | 1634 | #endif |
c5aa993b | 1635 | } |
9e0b60a8 JM |
1636 | read_history (history_filename); |
1637 | } | |
1638 | ||
920d2a44 | 1639 | static void |
ab821bc6 PA |
1640 | show_prompt (struct ui_file *file, int from_tty, |
1641 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1642 | { |
1643 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1644 | } | |
1645 | ||
1646 | static void | |
1647 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1648 | struct cmd_list_element *c, const char *value) | |
1649 | { | |
3e43a32a MS |
1650 | fprintf_filtered (file, _("Editing of command lines as " |
1651 | "they are typed is %s.\n"), | |
920d2a44 AC |
1652 | value); |
1653 | } | |
1654 | ||
1655 | static void | |
1656 | show_annotation_level (struct ui_file *file, int from_tty, | |
1657 | struct cmd_list_element *c, const char *value) | |
1658 | { | |
1659 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1660 | } | |
1661 | ||
1662 | static void | |
1663 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1664 | struct cmd_list_element *c, const char *value) | |
1665 | { | |
3e43a32a MS |
1666 | fprintf_filtered (file, _("Notification of completion for " |
1667 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1668 | value); |
1669 | } | |
6dea1fbd JK |
1670 | |
1671 | /* "set" command for the gdb_datadir configuration variable. */ | |
1672 | ||
1673 | static void | |
1674 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1675 | { | |
1676 | observer_notify_gdb_datadir_changed (); | |
1677 | } | |
1678 | ||
97c85fc6 MB |
1679 | static void |
1680 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
1681 | { | |
1682 | /* We include the current directory so that if the user changes | |
1683 | directories the file written will be the same as the one | |
1684 | that was read. */ | |
1685 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1686 | history_filename = reconcat (history_filename, current_directory, "/", | |
1687 | history_filename, (char *) NULL); | |
1688 | } | |
1689 | ||
9e0b60a8 | 1690 | static void |
fba45db2 | 1691 | init_main (void) |
9e0b60a8 | 1692 | { |
ab821bc6 PA |
1693 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1694 | the DEFAULT_PROMPT is. */ | |
1695 | set_prompt (DEFAULT_PROMPT); | |
1696 | ||
362646f5 AC |
1697 | /* Set things up for annotation_level > 1, if the user ever decides |
1698 | to use it. */ | |
1699 | async_annotation_suffix = "prompt"; | |
362646f5 | 1700 | |
9e0b60a8 JM |
1701 | /* Set the important stuff up for command editing. */ |
1702 | command_editing_p = 1; | |
9e0b60a8 | 1703 | history_expansion_p = 0; |
452a569e | 1704 | write_history_p = 0; |
9e0b60a8 JM |
1705 | |
1706 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1707 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1708 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1709 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1710 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1711 | rl_readline_name = "gdb"; |
7cb3ec5e | 1712 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1713 | |
467d8519 TT |
1714 | /* The name for this defun comes from Bash, where it originated. |
1715 | 15 is Control-o, the same binding this function has in Bash. */ | |
1716 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1717 | ||
4d28ad1e | 1718 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 1719 | &top_prompt, |
3e43a32a MS |
1720 | _("Set gdb's prompt"), |
1721 | _("Show gdb's prompt"), | |
ab821bc6 PA |
1722 | NULL, NULL, |
1723 | show_prompt, | |
4d28ad1e | 1724 | &setlist, &showlist); |
9e0b60a8 | 1725 | |
1bedd215 | 1726 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1727 | Don't repeat this command.\nPrimarily \ |
1728 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1729 | hitting return.")); |
9e0b60a8 | 1730 | |
5bf193a2 AC |
1731 | add_setshow_boolean_cmd ("editing", class_support, |
1732 | &async_command_editing_p, _("\ | |
1733 | Set editing of command lines as they are typed."), _("\ | |
1734 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1735 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1736 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1737 | EMACS-like or VI-like commands like control-P or ESC."), |
1738 | set_async_editing_command, | |
920d2a44 | 1739 | show_async_command_editing_p, |
5bf193a2 AC |
1740 | &setlist, &showlist); |
1741 | ||
1742 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1743 | Set saving of the history record on exit."), _("\ | |
1744 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1745 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1746 | Without an argument, saving is enabled."), |
1747 | NULL, | |
920d2a44 | 1748 | show_write_history_p, |
5bf193a2 | 1749 | &sethistlist, &showhistlist); |
9e0b60a8 | 1750 | |
840a9a1f | 1751 | add_setshow_uinteger_cmd ("size", no_class, &history_size_setshow_var, _("\ |
4d28ad1e AC |
1752 | Set the size of the command history,"), _("\ |
1753 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
1754 | ie. the number of previous commands to keep a record of.\n\ |
1755 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
1756 | list is unlimited. This defaults to the value of the environment\n\ | |
1757 | variable \"HISTSIZE\", or to 256 if this variable is not set."), | |
883b9c6c YQ |
1758 | set_history_size_command, |
1759 | show_history_size, | |
1760 | &sethistlist, &showhistlist); | |
4d28ad1e AC |
1761 | |
1762 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1763 | Set the filename in which to record the command history"), _("\ | |
1764 | Show the filename in which to record the command history"), _("\ | |
1765 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 1766 | set_history_filename, |
920d2a44 | 1767 | show_history_filename, |
4d28ad1e | 1768 | &sethistlist, &showhistlist); |
9e0b60a8 | 1769 | |
e360902b | 1770 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
1771 | Set whether to confirm potentially dangerous operations."), _("\ |
1772 | Show whether to confirm potentially dangerous operations."), NULL, | |
1773 | NULL, | |
e360902b | 1774 | show_confirm, |
5bf193a2 | 1775 | &setlist, &showlist); |
9e0b60a8 | 1776 | |
85c07804 AC |
1777 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1778 | Set annotation_level."), _("\ | |
1779 | Show annotation_level."), _("\ | |
9e0b60a8 | 1780 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 1781 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 1782 | NULL, |
920d2a44 | 1783 | show_annotation_level, |
85c07804 | 1784 | &setlist, &showlist); |
362646f5 | 1785 | |
5bf193a2 AC |
1786 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1787 | &exec_done_display_p, _("\ | |
1788 | Set notification of completion for asynchronous execution commands."), _("\ | |
1789 | Show notification of completion for asynchronous execution commands."), _("\ | |
1790 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1791 | NULL, | |
920d2a44 | 1792 | show_exec_done_display_p, |
5bf193a2 | 1793 | &setlist, &showlist); |
b14b1491 TT |
1794 | |
1795 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1796 | &gdb_datadir, _("Set GDB's data directory."), | |
1797 | _("Show GDB's data directory."), | |
1798 | _("\ | |
1799 | When set, GDB uses the specified path to search for data files."), | |
6dea1fbd | 1800 | set_gdb_datadir, NULL, |
b14b1491 TT |
1801 | &setlist, |
1802 | &showlist); | |
9e0b60a8 | 1803 | } |
64cdedad EZ |
1804 | |
1805 | void | |
1806 | gdb_init (char *argv0) | |
1807 | { | |
1808 | if (pre_init_ui_hook) | |
1809 | pre_init_ui_hook (); | |
1810 | ||
371d5dec | 1811 | /* Run the init function of each source file. */ |
64cdedad | 1812 | |
64cdedad EZ |
1813 | #ifdef __MSDOS__ |
1814 | /* Make sure we return to the original directory upon exit, come | |
1815 | what may, since the OS doesn't do that for us. */ | |
1816 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1817 | #endif | |
1818 | ||
371d5dec MS |
1819 | init_cmd_lists (); /* This needs to be done first. */ |
1820 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1821 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1822 | |
1823 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1824 | initialize_all_files (); |
9dea9163 | 1825 | |
6c95b8df PA |
1826 | /* This creates the current_program_space. Do this after all the |
1827 | _initialize_foo routines have had a chance to install their | |
1828 | per-sspace data keys. Also do this before | |
1829 | initialize_current_architecture is called, because it accesses | |
1830 | exec_bfd of the current program space. */ | |
1831 | initialize_progspace (); | |
1832 | initialize_inferiors (); | |
64cdedad EZ |
1833 | initialize_current_architecture (); |
1834 | init_cli_cmds(); | |
843b20dc | 1835 | initialize_event_loop (); |
371d5dec | 1836 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1837 | |
0ea3f30e DJ |
1838 | initialize_stdin_serial (); |
1839 | ||
362646f5 | 1840 | async_init_signals (); |
64cdedad | 1841 | |
371d5dec MS |
1842 | /* We need a default language for parsing expressions, so simple |
1843 | things like "set width 0" won't fail if no language is explicitly | |
1844 | set in a config file or implicitly set by reading an executable | |
1845 | during startup. */ | |
64cdedad | 1846 | set_language (language_c); |
371d5dec | 1847 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1848 | |
c378eb4e | 1849 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1850 | and it wants GDB to revert to the CLI, it should clear |
1851 | deprecated_init_ui_hook. */ | |
1852 | if (deprecated_init_ui_hook) | |
1853 | deprecated_init_ui_hook (argv0); | |
9dea9163 | 1854 | |
6dddc817 | 1855 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
1856 | installed. For example "info pretty-printer" needs the "info" |
1857 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
1858 | script initialization here. */ |
1859 | finish_ext_lang_initialization (); | |
64cdedad | 1860 | } |