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 FN |
408 | char *arg; |
409 | line = p; | |
8b93c638 | 410 | |
16026cd7 AS |
411 | /* If trace-commands is set then this will print this command. */ |
412 | print_command_trace (p); | |
413 | ||
6f937416 PA |
414 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
415 | p = (char *) cmd; | |
8b93c638 | 416 | |
d318976c FN |
417 | /* Pass null arg rather than an empty one. */ |
418 | arg = *p ? p : 0; | |
8b93c638 | 419 | |
9f60d481 AC |
420 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
421 | while the is_complete_command(cfunc) test is just plain | |
422 | bogus. They should both be replaced by a test of the form | |
423 | c->strip_trailing_white_space_p. */ | |
424 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
425 | can't be replaced with func. This is because it is the | |
426 | cfunc, and not the func, that has the value that the | |
427 | is_complete_command hack is testing for. */ | |
428 | /* Clear off trailing whitespace, except for set and complete | |
429 | command. */ | |
d318976c FN |
430 | if (arg |
431 | && c->type != set_cmd | |
bbaca940 | 432 | && !is_complete_command (c)) |
8b93c638 | 433 | { |
d318976c FN |
434 | p = arg + strlen (arg) - 1; |
435 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
436 | p--; | |
437 | *(p + 1) = '\0'; | |
8b93c638 JM |
438 | } |
439 | ||
371d5dec | 440 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 441 | execute_cmd_pre_hook (c); |
c906108c | 442 | |
1f2bdf09 | 443 | if (c->deprecated_warn_user) |
6f937416 | 444 | deprecated_cmd_warning (line); |
c906108c | 445 | |
7d74f244 DE |
446 | /* c->user_commands would be NULL in the case of a python command. */ |
447 | if (c->class == class_user && c->user_commands) | |
d318976c | 448 | execute_user_command (c, arg); |
5b9afe8a YQ |
449 | else if (c->type == set_cmd) |
450 | do_set_command (arg, from_tty, c); | |
451 | else if (c->type == show_cmd) | |
452 | do_show_command (arg, from_tty, c); | |
f436dd25 | 453 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 454 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 455 | else if (deprecated_call_command_hook) |
050a2e1d | 456 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 457 | else |
050a2e1d | 458 | cmd_func (c, arg, from_tty); |
b4a14fd0 PA |
459 | |
460 | /* If the interpreter is in sync mode (we're running a user | |
461 | command's list, running command hooks or similars), and we | |
462 | just ran a synchronous command that started the target, wait | |
463 | for that command to end. */ | |
0f641c01 | 464 | if (!interpreter_async && sync_execution) |
b4a14fd0 PA |
465 | { |
466 | while (gdb_do_one_event () >= 0) | |
467 | if (!sync_execution) | |
468 | break; | |
469 | } | |
470 | ||
371d5dec | 471 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 472 | execute_cmd_post_hook (c); |
c906108c | 473 | |
c906108c SS |
474 | } |
475 | ||
77cce10f | 476 | check_frame_language_change (); |
028d0ed5 | 477 | |
353d1d73 JK |
478 | do_cleanups (cleanup); |
479 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
480 | } |
481 | ||
5da1313b JK |
482 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
483 | returned string, do not display it to the screen. BATCH_FLAG will be | |
484 | temporarily set to true. */ | |
485 | ||
486 | char * | |
487 | execute_command_to_string (char *p, int from_tty) | |
488 | { | |
489 | struct ui_file *str_file; | |
490 | struct cleanup *cleanup; | |
491 | char *retval; | |
492 | ||
493 | /* GDB_STDOUT should be better already restored during these | |
494 | restoration callbacks. */ | |
495 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
496 | ||
b4a14fd0 PA |
497 | make_cleanup_restore_integer (&interpreter_async); |
498 | interpreter_async = 0; | |
499 | ||
5da1313b JK |
500 | str_file = mem_fileopen (); |
501 | ||
8d4d924b | 502 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
503 | make_cleanup_restore_ui_file (&gdb_stdout); |
504 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
505 | make_cleanup_restore_ui_file (&gdb_stdlog); |
506 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
507 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
508 | ||
79a45e25 | 509 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
510 | warning (_("Current output protocol does not support redirection")); |
511 | else | |
79a45e25 | 512 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
513 | |
514 | gdb_stdout = str_file; | |
515 | gdb_stderr = str_file; | |
8d4d924b JK |
516 | gdb_stdlog = str_file; |
517 | gdb_stdtarg = str_file; | |
518 | gdb_stdtargerr = str_file; | |
5da1313b JK |
519 | |
520 | execute_command (p, from_tty); | |
521 | ||
522 | retval = ui_file_xstrdup (str_file, NULL); | |
523 | ||
524 | do_cleanups (cleanup); | |
525 | ||
526 | return retval; | |
527 | } | |
528 | ||
d318976c FN |
529 | /* Read commands from `instream' and execute them |
530 | until end of file or error reading instream. */ | |
c906108c | 531 | |
d318976c FN |
532 | void |
533 | command_loop (void) | |
c906108c | 534 | { |
d318976c FN |
535 | struct cleanup *old_chain; |
536 | char *command; | |
537 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 538 | |
d318976c FN |
539 | while (instream && !feof (instream)) |
540 | { | |
d318976c | 541 | if (window_hook && instream == stdin) |
ab821bc6 | 542 | (*window_hook) (instream, get_prompt ()); |
c906108c | 543 | |
522002f9 | 544 | clear_quit_flag (); |
d318976c FN |
545 | if (instream == stdin && stdin_is_tty) |
546 | reinitialize_more_filter (); | |
547 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 548 | |
c378eb4e | 549 | /* Get a command-line. This calls the readline package. */ |
d318976c | 550 | command = command_line_input (instream == stdin ? |
ab821bc6 | 551 | get_prompt () : (char *) NULL, |
d318976c | 552 | instream == stdin, "prompt"); |
d318976c | 553 | if (command == 0) |
5fe41fbf TT |
554 | { |
555 | do_cleanups (old_chain); | |
556 | return; | |
557 | } | |
c906108c | 558 | |
0f3bb72e | 559 | make_command_stats_cleanup (1); |
9e0b60a8 | 560 | |
d318976c | 561 | execute_command (command, instream == stdin); |
347bddb7 PA |
562 | |
563 | /* Do any commands attached to breakpoint we are stopped at. */ | |
564 | bpstat_do_actions (); | |
565 | ||
d318976c | 566 | do_cleanups (old_chain); |
9e0b60a8 | 567 | } |
9e0b60a8 | 568 | } |
d318976c | 569 | \f |
47a80e90 TT |
570 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
571 | set via prevent_dont_repeat. */ | |
572 | ||
573 | static int suppress_dont_repeat = 0; | |
574 | ||
d318976c | 575 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 576 | |
d318976c FN |
577 | void |
578 | dont_repeat (void) | |
9e0b60a8 | 579 | { |
47a80e90 | 580 | if (suppress_dont_repeat || server_command) |
d318976c | 581 | return; |
9e0b60a8 | 582 | |
d318976c | 583 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
584 | thing read from stdin in line and don't want to delete it. Null |
585 | lines won't repeat here in any case. */ | |
d318976c | 586 | if (instream == stdin) |
dc7eb48e | 587 | *saved_command_line = 0; |
9e0b60a8 | 588 | } |
47a80e90 TT |
589 | |
590 | /* Prevent dont_repeat from working, and return a cleanup that | |
591 | restores the previous state. */ | |
592 | ||
593 | struct cleanup * | |
594 | prevent_dont_repeat (void) | |
595 | { | |
596 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
597 | ||
598 | suppress_dont_repeat = 1; | |
599 | return result; | |
600 | } | |
601 | ||
d318976c FN |
602 | \f |
603 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 604 | |
d318976c FN |
605 | It prints PROMPT_ARG once at the start. |
606 | Action is compatible with "readline", e.g. space for the result is | |
607 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 608 | |
d318976c FN |
609 | A NULL return means end of file. */ |
610 | char * | |
611 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 612 | { |
d318976c FN |
613 | int c; |
614 | char *result; | |
615 | int input_index = 0; | |
616 | int result_size = 80; | |
9e0b60a8 | 617 | |
d318976c | 618 | if (prompt_arg) |
9e0b60a8 | 619 | { |
d318976c FN |
620 | /* Don't use a _filtered function here. It causes the assumed |
621 | character position to be off, since the newline we read from | |
622 | the user is not accounted for. */ | |
623 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
624 | gdb_flush (gdb_stdout); |
625 | } | |
626 | ||
d318976c | 627 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
628 | |
629 | while (1) | |
630 | { | |
d318976c FN |
631 | /* Read from stdin if we are executing a user defined command. |
632 | This is the right thing for prompt_for_continue, at least. */ | |
633 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 634 | |
d318976c | 635 | if (c == EOF) |
9e0b60a8 | 636 | { |
d318976c FN |
637 | if (input_index > 0) |
638 | /* The last line does not end with a newline. Return it, and | |
639 | if we are called again fgetc will still return EOF and | |
640 | we'll return NULL then. */ | |
9e0b60a8 | 641 | break; |
b8c9b27d | 642 | xfree (result); |
d318976c | 643 | return NULL; |
9e0b60a8 | 644 | } |
c5aa993b | 645 | |
d318976c | 646 | if (c == '\n') |
9e0b60a8 | 647 | { |
d318976c FN |
648 | if (input_index > 0 && result[input_index - 1] == '\r') |
649 | input_index--; | |
650 | break; | |
9e0b60a8 | 651 | } |
9e0b60a8 | 652 | |
d318976c FN |
653 | result[input_index++] = c; |
654 | while (input_index >= result_size) | |
9e0b60a8 | 655 | { |
d318976c FN |
656 | result_size *= 2; |
657 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 658 | } |
9e0b60a8 JM |
659 | } |
660 | ||
d318976c FN |
661 | result[input_index++] = '\0'; |
662 | return result; | |
9e0b60a8 JM |
663 | } |
664 | ||
d318976c FN |
665 | /* Variables which control command line editing and history |
666 | substitution. These variables are given default values at the end | |
667 | of this file. */ | |
668 | static int command_editing_p; | |
920d2a44 | 669 | |
d318976c FN |
670 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
671 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 672 | event-top.c into this file, top.c. */ |
920d2a44 | 673 | |
d318976c | 674 | /* static */ int history_expansion_p; |
920d2a44 | 675 | |
d318976c | 676 | static int write_history_p; |
920d2a44 AC |
677 | static void |
678 | show_write_history_p (struct ui_file *file, int from_tty, | |
679 | struct cmd_list_element *c, const char *value) | |
680 | { | |
681 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
682 | value); | |
683 | } | |
684 | ||
840a9a1f PA |
685 | /* The variable associated with the "set/show history size" |
686 | command. */ | |
687 | static unsigned int history_size_setshow_var; | |
688 | ||
920d2a44 AC |
689 | static void |
690 | show_history_size (struct ui_file *file, int from_tty, | |
691 | struct cmd_list_element *c, const char *value) | |
692 | { | |
693 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
694 | value); | |
695 | } | |
696 | ||
d318976c | 697 | static char *history_filename; |
920d2a44 AC |
698 | static void |
699 | show_history_filename (struct ui_file *file, int from_tty, | |
700 | struct cmd_list_element *c, const char *value) | |
701 | { | |
3e43a32a MS |
702 | fprintf_filtered (file, _("The filename in which to record " |
703 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
704 | value); |
705 | } | |
9e0b60a8 | 706 | |
b4f5539f | 707 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 708 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
709 | a single gdb invocation. At the ordinary top-level prompt we might |
710 | be using the async readline. That means we can't use | |
711 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
712 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
713 | `define'), gdb wants a synchronous response. |
714 | ||
715 | We used to call readline() directly, running it in synchronous | |
716 | mode. But mixing modes this way is not supported, and as of | |
717 | readline 5.x it no longer works; the arrow keys come unbound during | |
718 | the synchronous call. So we make a nested call into the event | |
719 | loop. That's what gdb_readline_wrapper is for. */ | |
720 | ||
721 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
722 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
723 | the user types Control-D for EOF. */ | |
724 | static int gdb_readline_wrapper_done; | |
725 | ||
726 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
727 | is seen. */ | |
728 | static char *gdb_readline_wrapper_result; | |
729 | ||
730 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
731 | to be called after the newline is processed (which will redisplay | |
732 | the prompt). But in gdb_readline_wrapper we will not get a new | |
733 | prompt until the next call, or until we return to the event loop. | |
734 | So we disable this hook around the newline and restore it before we | |
735 | return. */ | |
736 | static void (*saved_after_char_processing_hook) (void); | |
737 | ||
738 | /* This function is called when readline has seen a complete line of | |
739 | text. */ | |
740 | ||
741 | static void | |
742 | gdb_readline_wrapper_line (char *line) | |
743 | { | |
744 | gdb_assert (!gdb_readline_wrapper_done); | |
745 | gdb_readline_wrapper_result = line; | |
746 | gdb_readline_wrapper_done = 1; | |
747 | ||
748 | /* Prevent operate-and-get-next from acting too early. */ | |
749 | saved_after_char_processing_hook = after_char_processing_hook; | |
750 | after_char_processing_hook = NULL; | |
1b05479a DJ |
751 | |
752 | /* Prevent parts of the prompt from being redisplayed if annotations | |
753 | are enabled, and readline's state getting out of sync. */ | |
754 | if (async_command_editing_p) | |
755 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
756 | } |
757 | ||
758 | struct gdb_readline_wrapper_cleanup | |
759 | { | |
760 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
761 | int already_prompted_orig; |
762 | }; | |
763 | ||
764 | static void | |
765 | gdb_readline_wrapper_cleanup (void *arg) | |
766 | { | |
767 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
768 | ||
2e03ee74 | 769 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
770 | |
771 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
772 | input_handler = cleanup->handler_orig; | |
773 | gdb_readline_wrapper_result = NULL; | |
774 | gdb_readline_wrapper_done = 0; | |
775 | ||
776 | after_char_processing_hook = saved_after_char_processing_hook; | |
777 | saved_after_char_processing_hook = NULL; | |
778 | ||
779 | xfree (cleanup); | |
780 | } | |
781 | ||
b4f5539f TT |
782 | char * |
783 | gdb_readline_wrapper (char *prompt) | |
784 | { | |
2e03ee74 DJ |
785 | struct cleanup *back_to; |
786 | struct gdb_readline_wrapper_cleanup *cleanup; | |
787 | char *retval; | |
788 | ||
789 | cleanup = xmalloc (sizeof (*cleanup)); | |
790 | cleanup->handler_orig = input_handler; | |
791 | input_handler = gdb_readline_wrapper_line; | |
792 | ||
2e03ee74 DJ |
793 | cleanup->already_prompted_orig = rl_already_prompted; |
794 | ||
795 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
796 | ||
797 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 798 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
799 | rl_already_prompted = 1; |
800 | ||
362646f5 | 801 | if (after_char_processing_hook) |
2e03ee74 DJ |
802 | (*after_char_processing_hook) (); |
803 | gdb_assert (after_char_processing_hook == NULL); | |
804 | ||
e0dd0826 | 805 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
806 | if (gdb_readline_wrapper_done) |
807 | break; | |
b4f5539f | 808 | |
2e03ee74 DJ |
809 | retval = gdb_readline_wrapper_result; |
810 | do_cleanups (back_to); | |
811 | return retval; | |
b4f5539f TT |
812 | } |
813 | ||
9e0b60a8 | 814 | \f |
467d8519 TT |
815 | /* The current saved history number from operate-and-get-next. |
816 | This is -1 if not valid. */ | |
817 | static int operate_saved_history = -1; | |
818 | ||
819 | /* This is put on the appropriate hook and helps operate-and-get-next | |
820 | do its work. */ | |
b9362cc7 | 821 | static void |
5ae5f592 | 822 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
823 | { |
824 | int delta = where_history () - operate_saved_history; | |
5d502164 | 825 | |
467d8519 TT |
826 | /* The `key' argument to rl_get_previous_history is ignored. */ |
827 | rl_get_previous_history (delta, 0); | |
828 | operate_saved_history = -1; | |
829 | ||
830 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 831 | rl_redisplay (); |
467d8519 TT |
832 | |
833 | after_char_processing_hook = NULL; | |
834 | rl_pre_input_hook = NULL; | |
835 | } | |
836 | ||
837 | /* This is a gdb-local readline command handler. It accepts the | |
838 | current command line (like RET does) and, if this command was taken | |
839 | from the history, arranges for the next command in the history to | |
840 | appear on the command line when the prompt returns. | |
841 | We ignore the arguments. */ | |
842 | static int | |
843 | gdb_rl_operate_and_get_next (int count, int key) | |
844 | { | |
b5686e99 MK |
845 | int where; |
846 | ||
362646f5 AC |
847 | /* Use the async hook. */ |
848 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 849 | |
b5686e99 MK |
850 | /* Find the current line, and find the next line to use. */ |
851 | where = where_history(); | |
852 | ||
1fb2e2b5 PA |
853 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
854 | || (where >= history_length - 1)) | |
b5686e99 MK |
855 | operate_saved_history = where; |
856 | else | |
857 | operate_saved_history = where + 1; | |
858 | ||
467d8519 TT |
859 | return rl_newline (1, key); |
860 | } | |
861 | \f | |
d318976c FN |
862 | /* Read one line from the command input stream `instream' |
863 | into the local static buffer `linebuffer' (whose current length | |
864 | is `linelength'). | |
865 | The buffer is made bigger as necessary. | |
866 | Returns the address of the start of the line. | |
9e0b60a8 | 867 | |
d318976c | 868 | NULL is returned for end of file. |
9e0b60a8 | 869 | |
d318976c FN |
870 | *If* the instream == stdin & stdin is a terminal, the line read |
871 | is copied into the file line saver (global var char *line, | |
872 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 873 | |
d318976c FN |
874 | This routine either uses fancy command line editing or |
875 | simple input as the user has requested. */ | |
10689f25 | 876 | |
d318976c FN |
877 | char * |
878 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 879 | { |
d318976c FN |
880 | static char *linebuffer = 0; |
881 | static unsigned linelength = 0; | |
52f0bd74 | 882 | char *p; |
d318976c FN |
883 | char *p1; |
884 | char *rl; | |
885 | char *local_prompt = prompt_arg; | |
886 | char *nline; | |
887 | char got_eof = 0; | |
888 | ||
889 | /* The annotation suffix must be non-NULL. */ | |
890 | if (annotation_suffix == NULL) | |
891 | annotation_suffix = ""; | |
9e0b60a8 | 892 | |
d318976c FN |
893 | if (annotation_level > 1 && instream == stdin) |
894 | { | |
895 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
896 | + strlen (annotation_suffix) + 40); | |
897 | if (prompt_arg == NULL) | |
898 | local_prompt[0] = '\0'; | |
899 | else | |
900 | strcpy (local_prompt, prompt_arg); | |
901 | strcat (local_prompt, "\n\032\032"); | |
902 | strcat (local_prompt, annotation_suffix); | |
903 | strcat (local_prompt, "\n"); | |
904 | } | |
9e0b60a8 | 905 | |
d318976c | 906 | if (linebuffer == 0) |
9e0b60a8 | 907 | { |
d318976c FN |
908 | linelength = 80; |
909 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 910 | } |
9e0b60a8 | 911 | |
d318976c | 912 | p = linebuffer; |
9e0b60a8 | 913 | |
d318976c FN |
914 | /* Control-C quits instantly if typed while in this loop |
915 | since it should not wait until the user types a newline. */ | |
916 | immediate_quit++; | |
522002f9 | 917 | QUIT; |
d318976c FN |
918 | #ifdef STOP_SIGNAL |
919 | if (job_control) | |
362646f5 | 920 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
921 | #endif |
922 | ||
923 | while (1) | |
9e0b60a8 | 924 | { |
371d5dec MS |
925 | /* Make sure that all output has been output. Some machines may |
926 | let you get away with leaving out some of the gdb_flush, but | |
927 | not all. */ | |
d318976c FN |
928 | wrap_here (""); |
929 | gdb_flush (gdb_stdout); | |
930 | gdb_flush (gdb_stderr); | |
931 | ||
932 | if (source_file_name != NULL) | |
637537d0 | 933 | ++source_line_number; |
d318976c FN |
934 | |
935 | if (annotation_level > 1 && instream == stdin) | |
936 | { | |
306d9ac5 DC |
937 | puts_unfiltered ("\n\032\032pre-"); |
938 | puts_unfiltered (annotation_suffix); | |
939 | puts_unfiltered ("\n"); | |
d318976c FN |
940 | } |
941 | ||
942 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 943 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 944 | { |
9a4105ab | 945 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 946 | } |
698ba934 | 947 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 948 | { |
b4f5539f | 949 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 950 | } |
9e0b60a8 | 951 | else |
d318976c FN |
952 | { |
953 | rl = gdb_readline (local_prompt); | |
954 | } | |
9e0b60a8 | 955 | |
d318976c FN |
956 | if (annotation_level > 1 && instream == stdin) |
957 | { | |
306d9ac5 DC |
958 | puts_unfiltered ("\n\032\032post-"); |
959 | puts_unfiltered (annotation_suffix); | |
960 | puts_unfiltered ("\n"); | |
d318976c | 961 | } |
9e0b60a8 | 962 | |
d318976c | 963 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 964 | { |
d318976c FN |
965 | got_eof = 1; |
966 | break; | |
9e0b60a8 | 967 | } |
d318976c FN |
968 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
969 | { | |
970 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
971 | nline = (char *) xrealloc (linebuffer, linelength); | |
972 | p += nline - linebuffer; | |
973 | linebuffer = nline; | |
974 | } | |
975 | p1 = rl; | |
976 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 977 | if this was just a newline). */ |
d318976c FN |
978 | while (*p1) |
979 | *p++ = *p1++; | |
9e0b60a8 | 980 | |
b8c9b27d | 981 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 982 | |
d318976c FN |
983 | if (p == linebuffer || *(p - 1) != '\\') |
984 | break; | |
9e0b60a8 | 985 | |
d318976c FN |
986 | p--; /* Put on top of '\'. */ |
987 | local_prompt = (char *) 0; | |
988 | } | |
9e0b60a8 | 989 | |
d318976c FN |
990 | #ifdef STOP_SIGNAL |
991 | if (job_control) | |
992 | signal (STOP_SIGNAL, SIG_DFL); | |
993 | #endif | |
994 | immediate_quit--; | |
9e0b60a8 | 995 | |
d318976c FN |
996 | if (got_eof) |
997 | return NULL; | |
9e0b60a8 | 998 | |
d318976c FN |
999 | #define SERVER_COMMAND_LENGTH 7 |
1000 | server_command = | |
1001 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1002 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1003 | if (server_command) |
9e0b60a8 | 1004 | { |
d318976c FN |
1005 | /* Note that we don't set `line'. Between this and the check in |
1006 | dont_repeat, this insures that repeating will still do the | |
1007 | right thing. */ | |
1008 | *p = '\0'; | |
1009 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1010 | } |
9e0b60a8 | 1011 | |
d318976c FN |
1012 | /* Do history expansion if that is wished. */ |
1013 | if (history_expansion_p && instream == stdin | |
1014 | && ISATTY (instream)) | |
1015 | { | |
1016 | char *history_value; | |
1017 | int expanded; | |
9e0b60a8 | 1018 | |
d318976c FN |
1019 | *p = '\0'; /* Insert null now. */ |
1020 | expanded = history_expand (linebuffer, &history_value); | |
1021 | if (expanded) | |
1022 | { | |
1023 | /* Print the changes. */ | |
1024 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1025 | |
d318976c FN |
1026 | /* If there was an error, call this function again. */ |
1027 | if (expanded < 0) | |
1028 | { | |
b8c9b27d | 1029 | xfree (history_value); |
3e43a32a MS |
1030 | return command_line_input (prompt_arg, repeat, |
1031 | annotation_suffix); | |
d318976c FN |
1032 | } |
1033 | if (strlen (history_value) > linelength) | |
1034 | { | |
1035 | linelength = strlen (history_value) + 1; | |
1036 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1037 | } | |
1038 | strcpy (linebuffer, history_value); | |
1039 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1040 | } |
91d2803c | 1041 | xfree (history_value); |
d318976c | 1042 | } |
9e0b60a8 | 1043 | |
371d5dec MS |
1044 | /* If we just got an empty line, and that is supposed to repeat the |
1045 | previous command, return the value in the global buffer. */ | |
d318976c | 1046 | if (repeat && p == linebuffer) |
dc7eb48e | 1047 | return saved_command_line; |
d318976c FN |
1048 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1049 | if (repeat && !*p1) | |
dc7eb48e | 1050 | return saved_command_line; |
9e0b60a8 | 1051 | |
d318976c | 1052 | *p = 0; |
9e0b60a8 | 1053 | |
d318976c | 1054 | /* Add line to history if appropriate. */ |
840da61a | 1055 | if (*linebuffer && input_from_terminal_p ()) |
d318976c | 1056 | add_history (linebuffer); |
9e0b60a8 | 1057 | |
d318976c FN |
1058 | /* Note: lines consisting solely of comments are added to the command |
1059 | history. This is useful when you type a command, and then | |
1060 | realize you don't want to execute it quite yet. You can comment | |
1061 | out the command and then later fetch it from the value history | |
1062 | and remove the '#'. The kill ring is probably better, but some | |
1063 | people are in the habit of commenting things out. */ | |
1064 | if (*p1 == '#') | |
371d5dec | 1065 | *p1 = '\0'; /* Found a comment. */ |
9e0b60a8 | 1066 | |
d318976c FN |
1067 | /* Save into global buffer if appropriate. */ |
1068 | if (repeat) | |
1069 | { | |
dc7eb48e | 1070 | if (linelength > saved_command_line_size) |
d318976c | 1071 | { |
dc7eb48e PA |
1072 | saved_command_line = xrealloc (saved_command_line, linelength); |
1073 | saved_command_line_size = linelength; | |
d318976c | 1074 | } |
dc7eb48e PA |
1075 | strcpy (saved_command_line, linebuffer); |
1076 | return saved_command_line; | |
d318976c | 1077 | } |
9e0b60a8 | 1078 | |
d318976c | 1079 | return linebuffer; |
9e0b60a8 JM |
1080 | } |
1081 | \f | |
371d5dec | 1082 | /* Print the GDB banner. */ |
9e0b60a8 | 1083 | void |
fba45db2 | 1084 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1085 | { |
1086 | /* From GNU coding standards, first line is meant to be easy for a | |
1087 | program to parse, and is just canonical program name and version | |
371d5dec | 1088 | number, which starts after last space. */ |
9e0b60a8 | 1089 | |
c16158bc | 1090 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1091 | |
371d5dec | 1092 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1093 | |
3e43a32a | 1094 | fprintf_filtered (stream, |
28498c42 | 1095 | "Copyright (C) 2014 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1096 | |
1097 | /* Following the copyright is a brief statement that the program is | |
1098 | free software, that users are free to copy and change it on | |
1099 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1100 | there is no warranty. */ |
9e0b60a8 JM |
1101 | |
1102 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1103 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1104 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1105 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1106 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1107 | |
371d5dec | 1108 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1109 | |
1110 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1111 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1112 | { |
3e43a32a MS |
1113 | fprintf_filtered (stream, "--host=%s --target=%s", |
1114 | host_name, target_name); | |
9e0b60a8 JM |
1115 | } |
1116 | else | |
1117 | { | |
1118 | fprintf_filtered (stream, "%s", host_name); | |
1119 | } | |
6eaaf48b EZ |
1120 | fprintf_filtered (stream, "\".\n\ |
1121 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1122 | |
1123 | if (REPORT_BUGS_TO[0]) | |
1124 | { | |
6eaaf48b | 1125 | fprintf_filtered (stream, |
c16158bc | 1126 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1127 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1128 | } |
1cf55f60 PM |
1129 | fprintf_filtered (stream, |
1130 | _("Find the GDB manual and other documentation \ | |
1131 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1132 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1133 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1134 | commands related to \"word\".")); |
9e0b60a8 | 1135 | } |
6eaaf48b EZ |
1136 | |
1137 | /* Print the details of GDB build-time configuration. */ | |
1138 | void | |
1139 | print_gdb_configuration (struct ui_file *stream) | |
1140 | { | |
1141 | fprintf_filtered (stream, _("\ | |
1142 | This GDB was configured as follows:\n\ | |
1143 | configure --host=%s --target=%s\n\ | |
1144 | "), host_name, target_name); | |
1145 | fprintf_filtered (stream, _("\ | |
1146 | --with-auto-load-dir=%s\n\ | |
1147 | --with-auto-load-safe-path=%s\n\ | |
1148 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1149 | #if HAVE_LIBEXPAT | |
1150 | fprintf_filtered (stream, _("\ | |
1151 | --with-expat\n\ | |
1152 | ")); | |
1153 | #else | |
1154 | fprintf_filtered (stream, _("\ | |
1155 | --without-expat\n\ | |
1156 | ")); | |
1157 | #endif | |
1158 | if (GDB_DATADIR[0]) | |
1159 | fprintf_filtered (stream, _("\ | |
1160 | --with-gdb-datadir=%s%s\n\ | |
1161 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1162 | #ifdef ICONV_BIN | |
1163 | fprintf_filtered (stream, _("\ | |
1164 | --with-iconv-bin=%s%s\n\ | |
1165 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1166 | #endif | |
1167 | if (JIT_READER_DIR[0]) | |
1168 | fprintf_filtered (stream, _("\ | |
1169 | --with-jit-reader-dir=%s%s\n\ | |
1170 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1171 | #if HAVE_LIBUNWIND_IA64_H | |
1172 | fprintf_filtered (stream, _("\ | |
1173 | --with-libunwind-ia64\n\ | |
1174 | ")); | |
1175 | #else | |
1176 | fprintf_filtered (stream, _("\ | |
1177 | --without-libunwind-ia64\n\ | |
1178 | ")); | |
1179 | #endif | |
1180 | #if HAVE_LIBLZMA | |
1181 | fprintf_filtered (stream, _("\ | |
1182 | --with-lzma\n\ | |
1183 | ")); | |
1184 | #else | |
1185 | fprintf_filtered (stream, _("\ | |
1186 | --without-lzma\n\ | |
1187 | ")); | |
1188 | #endif | |
1189 | #ifdef WITH_PYTHON_PATH | |
1190 | fprintf_filtered (stream, _("\ | |
1191 | --with-python=%s%s\n\ | |
1192 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1193 | #endif | |
1194 | #ifdef RELOC_SRCDIR | |
1195 | fprintf_filtered (stream, _("\ | |
1196 | --with-relocated-sources=%s\n\ | |
1197 | "), RELOC_SRCDIR); | |
1198 | #endif | |
1199 | if (DEBUGDIR[0]) | |
1200 | fprintf_filtered (stream, _("\ | |
1201 | --with-separate-debug-dir=%s%s\n\ | |
1202 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1203 | if (TARGET_SYSTEM_ROOT[0]) | |
1204 | fprintf_filtered (stream, _("\ | |
1205 | --with-sysroot=%s%s\n\ | |
1206 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1207 | if (SYSTEM_GDBINIT[0]) | |
1208 | fprintf_filtered (stream, _("\ | |
1209 | --with-system-gdbinit=%s%s\n\ | |
1210 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
1211 | #if HAVE_ZLIB_H | |
1212 | fprintf_filtered (stream, _("\ | |
1213 | --with-zlib\n\ | |
1214 | ")); | |
1215 | #else | |
1216 | fprintf_filtered (stream, _("\ | |
1217 | --without-zlib\n\ | |
1218 | ")); | |
1219 | #endif | |
ab116149 YQ |
1220 | #if HAVE_LIBBABELTRACE |
1221 | fprintf_filtered (stream, _("\ | |
1222 | --with-babeltrace\n\ | |
1223 | ")); | |
1224 | #else | |
1225 | fprintf_filtered (stream, _("\ | |
1226 | --without-babeltrace\n\ | |
1227 | ")); | |
1228 | #endif | |
48d1d6f5 EZ |
1229 | /* We assume "relocatable" will be printed at least once, thus we always |
1230 | print this text. It's a reasonably safe assumption for now. */ | |
1231 | fprintf_filtered (stream, _("\n\ | |
1232 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1233 | tree, and GDB will still find it.)\n\ | |
1234 | ")); | |
6eaaf48b | 1235 | } |
9e0b60a8 | 1236 | \f |
95298e72 | 1237 | |
ab821bc6 PA |
1238 | /* The current top level prompt, settable with "set prompt", and/or |
1239 | with the python `gdb.prompt_hook' hook. */ | |
1240 | static char *top_prompt; | |
9e0b60a8 | 1241 | |
ab821bc6 | 1242 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1243 | |
1244 | char * | |
ab821bc6 | 1245 | get_prompt (void) |
95298e72 | 1246 | { |
ab821bc6 | 1247 | return top_prompt; |
95298e72 PM |
1248 | } |
1249 | ||
ab821bc6 | 1250 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1251 | |
1252 | void | |
ab821bc6 | 1253 | set_prompt (const char *s) |
95298e72 | 1254 | { |
ab821bc6 | 1255 | char *p = xstrdup (s); |
95298e72 | 1256 | |
ab821bc6 PA |
1257 | xfree (top_prompt); |
1258 | top_prompt = p; | |
9e0b60a8 | 1259 | } |
9e0b60a8 | 1260 | \f |
c5aa993b | 1261 | |
b0abbc58 | 1262 | struct qt_args |
9e0b60a8 | 1263 | { |
b0abbc58 JJ |
1264 | char *args; |
1265 | int from_tty; | |
1266 | }; | |
9e0b60a8 | 1267 | |
54a012c9 PA |
1268 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1269 | inferior, depending on how we originally gained control of it. */ | |
1270 | ||
1271 | static int | |
1272 | kill_or_detach (struct inferior *inf, void *args) | |
1273 | { | |
1274 | struct qt_args *qt = args; | |
1275 | struct thread_info *thread; | |
1276 | ||
6c95b8df PA |
1277 | if (inf->pid == 0) |
1278 | return 0; | |
1279 | ||
b8fa0bfa PA |
1280 | thread = any_thread_of_process (inf->pid); |
1281 | if (thread != NULL) | |
9e0b60a8 | 1282 | { |
54a012c9 | 1283 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1284 | |
1285 | /* Leave core files alone. */ | |
1286 | if (target_has_execution) | |
1287 | { | |
1288 | if (inf->attach_flag) | |
1289 | target_detach (qt->args, qt->from_tty); | |
1290 | else | |
1291 | target_kill (); | |
1292 | } | |
9e0b60a8 JM |
1293 | } |
1294 | ||
54a012c9 PA |
1295 | return 0; |
1296 | } | |
1297 | ||
b8fa0bfa PA |
1298 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1299 | will do to each inferior on a "quit". ARG points to a struct | |
1300 | ui_out where output is to be collected. */ | |
1301 | ||
1302 | static int | |
1303 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1304 | { | |
1305 | struct ui_file *stb = arg; | |
1306 | ||
6c95b8df PA |
1307 | if (inf->pid == 0) |
1308 | return 0; | |
1309 | ||
b8fa0bfa PA |
1310 | if (inf->attach_flag) |
1311 | fprintf_filtered (stb, | |
1312 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1313 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1314 | else | |
1315 | fprintf_filtered (stb, | |
1316 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1317 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | /* If necessary, make the user confirm that we should quit. Return | |
1323 | non-zero if we should quit, zero if we shouldn't. */ | |
1324 | ||
1325 | int | |
1326 | quit_confirm (void) | |
1327 | { | |
1328 | struct ui_file *stb; | |
1329 | struct cleanup *old_chain; | |
1330 | char *str; | |
1331 | int qr; | |
1332 | ||
1333 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1334 | if (!have_live_inferiors ()) | |
1335 | return 1; | |
1336 | ||
1337 | /* Build the query string as a single string. */ | |
1338 | stb = mem_fileopen (); | |
1339 | old_chain = make_cleanup_ui_file_delete (stb); | |
1340 | ||
5a5d8ead AB |
1341 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); |
1342 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1343 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
b8fa0bfa PA |
1344 | |
1345 | str = ui_file_xstrdup (stb, NULL); | |
1346 | make_cleanup (xfree, str); | |
1347 | ||
1348 | qr = query ("%s", str); | |
1349 | do_cleanups (old_chain); | |
1350 | return qr; | |
1351 | } | |
1352 | ||
b0abbc58 JJ |
1353 | /* Quit without asking for confirmation. */ |
1354 | ||
1355 | void | |
1356 | quit_force (char *args, int from_tty) | |
1357 | { | |
1358 | int exit_code = 0; | |
365c70b1 | 1359 | struct qt_args qt; |
2f9d54cf | 1360 | volatile struct gdb_exception ex; |
b0abbc58 JJ |
1361 | |
1362 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1363 | value of that expression. */ |
b0abbc58 JJ |
1364 | if (args) |
1365 | { | |
1366 | struct value *val = parse_and_eval (args); | |
1367 | ||
1368 | exit_code = (int) value_as_long (val); | |
1369 | } | |
4b0ad762 AS |
1370 | else if (return_child_result) |
1371 | exit_code = return_child_result_value; | |
b0abbc58 | 1372 | |
365c70b1 JJ |
1373 | qt.args = args; |
1374 | qt.from_tty = from_tty; | |
1375 | ||
2f9d54cf PA |
1376 | /* Wrappers to make the code below a bit more readable. */ |
1377 | #define DO_TRY \ | |
1378 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1379 | ||
1380 | #define DO_PRINT_EX \ | |
1381 | if (ex.reason < 0) \ | |
1382 | exception_print (gdb_stderr, ex) | |
1383 | ||
b0abbc58 | 1384 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1385 | |
1386 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
1387 | DO_TRY | |
1388 | { | |
1389 | disconnect_tracing (); | |
1390 | iterate_over_inferiors (kill_or_detach, &qt); | |
1391 | } | |
1392 | DO_PRINT_EX; | |
1393 | ||
1394 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1395 | them all out. */ | |
1396 | DO_TRY | |
1397 | { | |
1398 | pop_all_targets (); | |
1399 | } | |
1400 | DO_PRINT_EX; | |
1401 | ||
1402 | /* Save the history information if it is appropriate to do so. */ | |
1403 | DO_TRY | |
1404 | { | |
35ab155d MB |
1405 | if (write_history_p && history_filename |
1406 | && input_from_terminal_p ()) | |
2f9d54cf PA |
1407 | write_history (history_filename); |
1408 | } | |
1409 | DO_PRINT_EX; | |
1410 | ||
1411 | /* Do any final cleanups before exiting. */ | |
1412 | DO_TRY | |
1413 | { | |
1414 | do_final_cleanups (all_cleanups ()); | |
1415 | } | |
1416 | DO_PRINT_EX; | |
b0abbc58 | 1417 | |
9e0b60a8 JM |
1418 | exit (exit_code); |
1419 | } | |
1420 | ||
698ba934 DJ |
1421 | /* Returns whether GDB is running on a terminal and input is |
1422 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1423 | |
1424 | int | |
fba45db2 | 1425 | input_from_terminal_p (void) |
9e0b60a8 | 1426 | { |
c63a1f86 JK |
1427 | if (batch_flag) |
1428 | return 0; | |
1429 | ||
698ba934 DJ |
1430 | if (gdb_has_a_terminal () && instream == stdin) |
1431 | return 1; | |
1432 | ||
1433 | /* If INSTREAM is unset, and we are not in a user command, we | |
1434 | must be in Insight. That's like having a terminal, for our | |
1435 | purposes. */ | |
1436 | if (instream == NULL && !in_user_command) | |
1437 | return 1; | |
1438 | ||
1439 | return 0; | |
9e0b60a8 JM |
1440 | } |
1441 | \f | |
9e0b60a8 | 1442 | static void |
fba45db2 | 1443 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1444 | { |
dc7eb48e PA |
1445 | /* Can't call dont_repeat here because we're not necessarily reading |
1446 | from stdin. */ | |
1447 | *saved_command_line = 0; | |
9e0b60a8 JM |
1448 | } |
1449 | \f | |
1450 | /* Functions to manipulate command line editing control variables. */ | |
1451 | ||
1452 | /* Number of commands to print in each call to show_commands. */ | |
1453 | #define Hist_print 10 | |
d318976c | 1454 | void |
fba45db2 | 1455 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1456 | { |
1457 | /* Index for history commands. Relative to history_base. */ | |
1458 | int offset; | |
1459 | ||
1460 | /* Number of the history entry which we are planning to display next. | |
1461 | Relative to history_base. */ | |
1462 | static int num = 0; | |
1463 | ||
9e0b60a8 | 1464 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1465 | |
1466 | if (args) | |
1467 | { | |
1468 | if (args[0] == '+' && args[1] == '\0') | |
1469 | /* "info editing +" should print from the stored position. */ | |
1470 | ; | |
1471 | else | |
1472 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1473 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1474 | } |
1475 | /* "show commands" means print the last Hist_print commands. */ | |
1476 | else | |
1477 | { | |
840a9a1f | 1478 | num = history_length - Hist_print; |
9e0b60a8 JM |
1479 | } |
1480 | ||
1481 | if (num < 0) | |
1482 | num = 0; | |
1483 | ||
1484 | /* If there are at least Hist_print commands, we want to display the last | |
1485 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1486 | if (history_length - num < Hist_print) |
9e0b60a8 | 1487 | { |
840a9a1f | 1488 | num = history_length - Hist_print; |
9e0b60a8 JM |
1489 | if (num < 0) |
1490 | num = 0; | |
1491 | } | |
1492 | ||
840a9a1f PA |
1493 | for (offset = num; |
1494 | offset < num + Hist_print && offset < history_length; | |
1495 | offset++) | |
9e0b60a8 JM |
1496 | { |
1497 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1498 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1499 | } |
1500 | ||
1501 | /* The next command we want to display is the next one that we haven't | |
1502 | displayed yet. */ | |
1503 | num += Hist_print; | |
1504 | ||
1505 | /* If the user repeats this command with return, it should do what | |
1506 | "show commands +" does. This is unnecessary if arg is null, | |
1507 | because "show commands +" is not useful after "show commands". */ | |
1508 | if (from_tty && args) | |
1509 | { | |
1510 | args[0] = '+'; | |
1511 | args[1] = '\0'; | |
1512 | } | |
1513 | } | |
1514 | ||
1515 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1516 | static void |
fba45db2 | 1517 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1518 | { |
840a9a1f PA |
1519 | /* Readline's history interface works with 'int', so it can only |
1520 | handle history sizes up to INT_MAX. The command itself is | |
1521 | uinteger, so UINT_MAX means "unlimited", but we only get that if | |
1522 | the user does "set history size 0" -- "set history size <UINT_MAX>" | |
1523 | throws out-of-range. */ | |
1524 | if (history_size_setshow_var > INT_MAX | |
1525 | && history_size_setshow_var != UINT_MAX) | |
9e0b60a8 | 1526 | { |
840a9a1f PA |
1527 | unsigned int new_value = history_size_setshow_var; |
1528 | ||
1529 | /* Restore previous value before throwing. */ | |
1530 | if (history_is_stifled ()) | |
1531 | history_size_setshow_var = history_max_entries; | |
1532 | else | |
1533 | history_size_setshow_var = UINT_MAX; | |
1534 | ||
1535 | error (_("integer %u out of range"), new_value); | |
9e0b60a8 | 1536 | } |
840a9a1f PA |
1537 | |
1538 | /* Commit the new value to readline's history. */ | |
1539 | if (history_size_setshow_var == UINT_MAX) | |
1540 | unstifle_history (); | |
883b9c6c | 1541 | else |
840a9a1f | 1542 | stifle_history (history_size_setshow_var); |
9e0b60a8 JM |
1543 | } |
1544 | ||
d318976c | 1545 | void |
fba45db2 | 1546 | set_history (char *args, int from_tty) |
9e0b60a8 | 1547 | { |
3e43a32a MS |
1548 | printf_unfiltered (_("\"set history\" must be followed " |
1549 | "by the name of a history subcommand.\n")); | |
9e0b60a8 JM |
1550 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1551 | } | |
1552 | ||
d318976c | 1553 | void |
fba45db2 | 1554 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1555 | { |
1556 | cmd_show_list (showhistlist, from_tty, ""); | |
1557 | } | |
1558 | ||
371d5dec | 1559 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1560 | |
1561 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1562 | void |
fba45db2 | 1563 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1564 | { |
6f937416 | 1565 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1566 | struct cmd_list_element *showcmd; |
1567 | ||
1568 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1569 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1570 | |
1571 | if (info_verbose) | |
1572 | { | |
1573 | c->doc = "Set verbose printing of informational messages."; | |
1574 | showcmd->doc = "Show verbose printing of informational messages."; | |
1575 | } | |
1576 | else | |
1577 | { | |
1578 | c->doc = "Set verbosity."; | |
1579 | showcmd->doc = "Show verbosity."; | |
1580 | } | |
1581 | } | |
1582 | ||
9e0b60a8 | 1583 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1584 | have been read so that the user can change the history file via his |
1585 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1586 | overrides all of this. */ | |
9e0b60a8 JM |
1587 | |
1588 | void | |
fba45db2 | 1589 | init_history (void) |
9e0b60a8 JM |
1590 | { |
1591 | char *tmpenv; | |
1592 | ||
1593 | tmpenv = getenv ("HISTSIZE"); | |
1594 | if (tmpenv) | |
840a9a1f PA |
1595 | { |
1596 | int var; | |
1597 | ||
1598 | var = atoi (tmpenv); | |
1599 | if (var < 0) | |
1600 | { | |
1601 | /* Prefer ending up with no history rather than overflowing | |
1602 | readline's history interface, which uses signed 'int' | |
1603 | everywhere. */ | |
1604 | var = 0; | |
1605 | } | |
1606 | ||
1607 | history_size_setshow_var = var; | |
1608 | } | |
1609 | /* If the init file hasn't set a size yet, pick the default. */ | |
1610 | else if (history_size_setshow_var == 0) | |
1611 | history_size_setshow_var = 256; | |
9e0b60a8 | 1612 | |
840a9a1f PA |
1613 | /* Note that unlike "set history size 0", "HISTSIZE=0" really sets |
1614 | the history size to 0... */ | |
1615 | stifle_history (history_size_setshow_var); | |
9e0b60a8 JM |
1616 | |
1617 | tmpenv = getenv ("GDBHISTFILE"); | |
1618 | if (tmpenv) | |
1b36a34b | 1619 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1620 | else if (!history_filename) |
1621 | { | |
1622 | /* We include the current directory so that if the user changes | |
1623 | directories the file written will be the same as the one | |
1624 | that was read. */ | |
a0b3c4fd | 1625 | #ifdef __MSDOS__ |
eb2f494a | 1626 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1627 | history_filename = concat (current_directory, "/_gdb_history", |
1628 | (char *)NULL); | |
a0b3c4fd | 1629 | #else |
1754f103 MK |
1630 | history_filename = concat (current_directory, "/.gdb_history", |
1631 | (char *)NULL); | |
a0b3c4fd | 1632 | #endif |
c5aa993b | 1633 | } |
9e0b60a8 JM |
1634 | read_history (history_filename); |
1635 | } | |
1636 | ||
920d2a44 | 1637 | static void |
ab821bc6 PA |
1638 | show_prompt (struct ui_file *file, int from_tty, |
1639 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1640 | { |
1641 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1642 | } | |
1643 | ||
1644 | static void | |
1645 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1646 | struct cmd_list_element *c, const char *value) | |
1647 | { | |
3e43a32a MS |
1648 | fprintf_filtered (file, _("Editing of command lines as " |
1649 | "they are typed is %s.\n"), | |
920d2a44 AC |
1650 | value); |
1651 | } | |
1652 | ||
1653 | static void | |
1654 | show_annotation_level (struct ui_file *file, int from_tty, | |
1655 | struct cmd_list_element *c, const char *value) | |
1656 | { | |
1657 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1658 | } | |
1659 | ||
1660 | static void | |
1661 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1662 | struct cmd_list_element *c, const char *value) | |
1663 | { | |
3e43a32a MS |
1664 | fprintf_filtered (file, _("Notification of completion for " |
1665 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1666 | value); |
1667 | } | |
6dea1fbd JK |
1668 | |
1669 | /* "set" command for the gdb_datadir configuration variable. */ | |
1670 | ||
1671 | static void | |
1672 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1673 | { | |
1674 | observer_notify_gdb_datadir_changed (); | |
1675 | } | |
1676 | ||
97c85fc6 MB |
1677 | static void |
1678 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
1679 | { | |
1680 | /* We include the current directory so that if the user changes | |
1681 | directories the file written will be the same as the one | |
1682 | that was read. */ | |
1683 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1684 | history_filename = reconcat (history_filename, current_directory, "/", | |
1685 | history_filename, (char *) NULL); | |
1686 | } | |
1687 | ||
9e0b60a8 | 1688 | static void |
fba45db2 | 1689 | init_main (void) |
9e0b60a8 | 1690 | { |
ab821bc6 PA |
1691 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1692 | the DEFAULT_PROMPT is. */ | |
1693 | set_prompt (DEFAULT_PROMPT); | |
1694 | ||
362646f5 AC |
1695 | /* Set things up for annotation_level > 1, if the user ever decides |
1696 | to use it. */ | |
1697 | async_annotation_suffix = "prompt"; | |
362646f5 | 1698 | |
9e0b60a8 JM |
1699 | /* Set the important stuff up for command editing. */ |
1700 | command_editing_p = 1; | |
9e0b60a8 | 1701 | history_expansion_p = 0; |
452a569e | 1702 | write_history_p = 0; |
9e0b60a8 JM |
1703 | |
1704 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1705 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1706 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1707 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1708 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1709 | rl_readline_name = "gdb"; |
7cb3ec5e | 1710 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1711 | |
467d8519 TT |
1712 | /* The name for this defun comes from Bash, where it originated. |
1713 | 15 is Control-o, the same binding this function has in Bash. */ | |
1714 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1715 | ||
4d28ad1e | 1716 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 1717 | &top_prompt, |
3e43a32a MS |
1718 | _("Set gdb's prompt"), |
1719 | _("Show gdb's prompt"), | |
ab821bc6 PA |
1720 | NULL, NULL, |
1721 | show_prompt, | |
4d28ad1e | 1722 | &setlist, &showlist); |
9e0b60a8 | 1723 | |
1bedd215 | 1724 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1725 | Don't repeat this command.\nPrimarily \ |
1726 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1727 | hitting return.")); |
9e0b60a8 | 1728 | |
5bf193a2 AC |
1729 | add_setshow_boolean_cmd ("editing", class_support, |
1730 | &async_command_editing_p, _("\ | |
1731 | Set editing of command lines as they are typed."), _("\ | |
1732 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1733 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1734 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1735 | EMACS-like or VI-like commands like control-P or ESC."), |
1736 | set_async_editing_command, | |
920d2a44 | 1737 | show_async_command_editing_p, |
5bf193a2 AC |
1738 | &setlist, &showlist); |
1739 | ||
1740 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1741 | Set saving of the history record on exit."), _("\ | |
1742 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1743 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1744 | Without an argument, saving is enabled."), |
1745 | NULL, | |
920d2a44 | 1746 | show_write_history_p, |
5bf193a2 | 1747 | &sethistlist, &showhistlist); |
9e0b60a8 | 1748 | |
840a9a1f | 1749 | add_setshow_uinteger_cmd ("size", no_class, &history_size_setshow_var, _("\ |
4d28ad1e AC |
1750 | Set the size of the command history,"), _("\ |
1751 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
1752 | ie. the number of previous commands to keep a record of.\n\ |
1753 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
1754 | list is unlimited. This defaults to the value of the environment\n\ | |
1755 | variable \"HISTSIZE\", or to 256 if this variable is not set."), | |
883b9c6c YQ |
1756 | set_history_size_command, |
1757 | show_history_size, | |
1758 | &sethistlist, &showhistlist); | |
4d28ad1e AC |
1759 | |
1760 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1761 | Set the filename in which to record the command history"), _("\ | |
1762 | Show the filename in which to record the command history"), _("\ | |
1763 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 1764 | set_history_filename, |
920d2a44 | 1765 | show_history_filename, |
4d28ad1e | 1766 | &sethistlist, &showhistlist); |
9e0b60a8 | 1767 | |
e360902b | 1768 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
1769 | Set whether to confirm potentially dangerous operations."), _("\ |
1770 | Show whether to confirm potentially dangerous operations."), NULL, | |
1771 | NULL, | |
e360902b | 1772 | show_confirm, |
5bf193a2 | 1773 | &setlist, &showlist); |
9e0b60a8 | 1774 | |
85c07804 AC |
1775 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1776 | Set annotation_level."), _("\ | |
1777 | Show annotation_level."), _("\ | |
9e0b60a8 | 1778 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 1779 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 1780 | NULL, |
920d2a44 | 1781 | show_annotation_level, |
85c07804 | 1782 | &setlist, &showlist); |
362646f5 | 1783 | |
5bf193a2 AC |
1784 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1785 | &exec_done_display_p, _("\ | |
1786 | Set notification of completion for asynchronous execution commands."), _("\ | |
1787 | Show notification of completion for asynchronous execution commands."), _("\ | |
1788 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1789 | NULL, | |
920d2a44 | 1790 | show_exec_done_display_p, |
5bf193a2 | 1791 | &setlist, &showlist); |
b14b1491 TT |
1792 | |
1793 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1794 | &gdb_datadir, _("Set GDB's data directory."), | |
1795 | _("Show GDB's data directory."), | |
1796 | _("\ | |
1797 | When set, GDB uses the specified path to search for data files."), | |
6dea1fbd | 1798 | set_gdb_datadir, NULL, |
b14b1491 TT |
1799 | &setlist, |
1800 | &showlist); | |
9e0b60a8 | 1801 | } |
64cdedad EZ |
1802 | |
1803 | void | |
1804 | gdb_init (char *argv0) | |
1805 | { | |
1806 | if (pre_init_ui_hook) | |
1807 | pre_init_ui_hook (); | |
1808 | ||
371d5dec | 1809 | /* Run the init function of each source file. */ |
64cdedad | 1810 | |
64cdedad EZ |
1811 | #ifdef __MSDOS__ |
1812 | /* Make sure we return to the original directory upon exit, come | |
1813 | what may, since the OS doesn't do that for us. */ | |
1814 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1815 | #endif | |
1816 | ||
371d5dec MS |
1817 | init_cmd_lists (); /* This needs to be done first. */ |
1818 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1819 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1820 | |
1821 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1822 | initialize_all_files (); |
9dea9163 | 1823 | |
6c95b8df PA |
1824 | /* This creates the current_program_space. Do this after all the |
1825 | _initialize_foo routines have had a chance to install their | |
1826 | per-sspace data keys. Also do this before | |
1827 | initialize_current_architecture is called, because it accesses | |
1828 | exec_bfd of the current program space. */ | |
1829 | initialize_progspace (); | |
1830 | initialize_inferiors (); | |
64cdedad EZ |
1831 | initialize_current_architecture (); |
1832 | init_cli_cmds(); | |
843b20dc | 1833 | initialize_event_loop (); |
371d5dec | 1834 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1835 | |
0ea3f30e DJ |
1836 | initialize_stdin_serial (); |
1837 | ||
362646f5 | 1838 | async_init_signals (); |
64cdedad | 1839 | |
371d5dec MS |
1840 | /* We need a default language for parsing expressions, so simple |
1841 | things like "set width 0" won't fail if no language is explicitly | |
1842 | set in a config file or implicitly set by reading an executable | |
1843 | during startup. */ | |
64cdedad | 1844 | set_language (language_c); |
371d5dec | 1845 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1846 | |
c378eb4e | 1847 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1848 | and it wants GDB to revert to the CLI, it should clear |
1849 | deprecated_init_ui_hook. */ | |
1850 | if (deprecated_init_ui_hook) | |
1851 | deprecated_init_ui_hook (argv0); | |
9dea9163 | 1852 | |
6dddc817 | 1853 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
1854 | installed. For example "info pretty-printer" needs the "info" |
1855 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
1856 | script initialization here. */ |
1857 | finish_ext_lang_initialization (); | |
64cdedad | 1858 | } |