Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
7b6bb8da | 5 | 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdbcmd.h" | |
24 | #include "call-cmds.h" | |
210661e7 EZ |
25 | #include "cli/cli-cmds.h" |
26 | #include "cli/cli-script.h" | |
27 | #include "cli/cli-setshow.h" | |
18a642a1 | 28 | #include "cli/cli-decode.h" |
c906108c SS |
29 | #include "symtab.h" |
30 | #include "inferior.h" | |
60250e8b | 31 | #include "exceptions.h" |
042be3a9 | 32 | #include <signal.h> |
c906108c SS |
33 | #include "target.h" |
34 | #include "breakpoint.h" | |
35 | #include "gdbtypes.h" | |
36 | #include "expression.h" | |
37 | #include "value.h" | |
38 | #include "language.h" | |
c5aa993b | 39 | #include "terminal.h" /* For job_control. */ |
c906108c | 40 | #include "annotate.h" |
c5f0f3d0 | 41 | #include "completer.h" |
c906108c | 42 | #include "top.h" |
d4f3574e | 43 | #include "version.h" |
210661e7 | 44 | #include "serial.h" |
d16aafd8 | 45 | #include "doublest.h" |
f9c696d2 | 46 | #include "gdb_assert.h" |
f17517ea | 47 | #include "main.h" |
2e03ee74 | 48 | #include "event-loop.h" |
8ea051c5 | 49 | #include "gdbthread.h" |
9dea9163 | 50 | #include "python/python.h" |
c906108c | 51 | |
371d5dec | 52 | /* readline include files. */ |
dbda9972 AC |
53 | #include "readline/readline.h" |
54 | #include "readline/history.h" | |
c906108c SS |
55 | |
56 | /* readline defines this. */ | |
57 | #undef savestring | |
58 | ||
59 | #include <sys/types.h> | |
c906108c | 60 | |
c2c6d25f | 61 | #include "event-top.h" |
c906108c SS |
62 | #include "gdb_string.h" |
63 | #include "gdb_stat.h" | |
64 | #include <ctype.h> | |
8b93c638 JM |
65 | #include "ui-out.h" |
66 | #include "cli-out.h" | |
c906108c | 67 | |
95298e72 PM |
68 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
69 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
70 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
71 | ||
371d5dec | 72 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
73 | |
74 | #ifndef DEFAULT_PROMPT | |
75 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
76 | #endif |
77 | ||
78 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
79 | ||
eaae3919 EZ |
80 | #ifndef PATH_MAX |
81 | # ifdef FILENAME_MAX | |
82 | # define PATH_MAX FILENAME_MAX | |
83 | # else | |
84 | # define PATH_MAX 512 | |
85 | # endif | |
86 | #endif | |
87 | ||
c906108c SS |
88 | #ifndef GDBINIT_FILENAME |
89 | #define GDBINIT_FILENAME ".gdbinit" | |
90 | #endif | |
eaae3919 | 91 | char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME; |
c906108c SS |
92 | |
93 | int inhibit_gdbinit = 0; | |
94 | ||
95 | /* If nonzero, and GDB has been configured to be able to use windows, | |
96 | attempt to open them upon startup. */ | |
97 | ||
f15ab4a7 | 98 | int use_windows = 0; |
c906108c | 99 | |
c906108c SS |
100 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
101 | ||
102 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
103 | ||
371d5dec | 104 | int caution = 1; /* Default is yes, sigh. */ |
920d2a44 AC |
105 | static void |
106 | show_caution (struct ui_file *file, int from_tty, | |
107 | struct cmd_list_element *c, const char *value) | |
108 | { | |
3e43a32a MS |
109 | fprintf_filtered (file, _("Whether to confirm potentially " |
110 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
111 | value); |
112 | } | |
c906108c | 113 | |
371d5dec MS |
114 | /* stdio stream that command input is being read from. Set to stdin |
115 | normally. Set by source_command to the file we are sourcing. Set | |
116 | to NULL if we are executing a user-defined command or interacting | |
117 | via a GUI. */ | |
c906108c SS |
118 | |
119 | FILE *instream; | |
120 | ||
698ba934 DJ |
121 | /* Flag to indicate whether a user defined command is currently running. */ |
122 | ||
123 | int in_user_command; | |
124 | ||
c906108c SS |
125 | /* Current working directory. */ |
126 | ||
127 | char *current_directory; | |
128 | ||
129 | /* The directory name is actually stored here (usually). */ | |
130 | char gdb_dirbuf[1024]; | |
131 | ||
132 | /* Function to call before reading a command, if nonzero. | |
133 | The function receives two args: an input stream, | |
134 | and a prompt string. */ | |
135 | ||
507f3c78 | 136 | void (*window_hook) (FILE *, char *); |
c906108c SS |
137 | |
138 | int epoch_interface; | |
139 | int xgdb_verbose; | |
140 | ||
c906108c SS |
141 | /* Buffer used for reading command lines, and the size |
142 | allocated for it so far. */ | |
143 | ||
dc7eb48e PA |
144 | char *saved_command_line; |
145 | int saved_command_line_size = 100; | |
c906108c SS |
146 | |
147 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 148 | affects things like recording into the command history, commands |
c906108c SS |
149 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
150 | whatever) can issue its own commands and also send along commands | |
151 | from the user, and have the user not notice that the user interface | |
152 | is issuing commands too. */ | |
153 | int server_command; | |
154 | ||
155 | /* Baud rate specified for talking to serial target systems. Default | |
156 | is left as -1, so targets can choose their own defaults. */ | |
371d5dec MS |
157 | /* FIXME: This means that "show remotebaud" and gr_files_info can |
158 | print -1 or (unsigned int)-1. This is a Bad User Interface. */ | |
c906108c SS |
159 | |
160 | int baud_rate = -1; | |
161 | ||
371d5dec | 162 | /* Timeout limit for response from target. */ |
c906108c | 163 | |
ce808e91 AC |
164 | /* The default value has been changed many times over the years. It |
165 | was originally 5 seconds. But that was thought to be a long time | |
166 | to sit and wait, so it was changed to 2 seconds. That was thought | |
167 | to be plenty unless the connection was going through some terminal | |
168 | server or multiplexer or other form of hairy serial connection. | |
169 | ||
170 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
171 | it began being used in other remote-* targets. It appears that the | |
172 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 173 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
174 | |
175 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
176 | 20 seconds is far worse. This demonstrates the difficulty of using | |
177 | a single variable for all protocol timeouts. | |
178 | ||
179 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 180 | back to 2 seconds in 1999. */ |
ce808e91 AC |
181 | |
182 | int remote_timeout = 2; | |
c906108c SS |
183 | |
184 | /* Non-zero tells remote* modules to output debugging info. */ | |
185 | ||
186 | int remote_debug = 0; | |
187 | ||
6dd77b81 RH |
188 | /* Sbrk location on entry to main. Used for statistics only. */ |
189 | #ifdef HAVE_SBRK | |
190 | char *lim_at_start; | |
191 | #endif | |
192 | ||
c906108c SS |
193 | /* Hooks for alternate command interfaces. */ |
194 | ||
371d5dec MS |
195 | /* Called after most modules have been initialized, but before taking |
196 | users command file. | |
1ad24239 | 197 | |
371d5dec MS |
198 | If the UI fails to initialize and it wants GDB to continue using |
199 | the default UI, then it should clear this hook before returning. */ | |
c906108c | 200 | |
9a4105ab | 201 | void (*deprecated_init_ui_hook) (char *argv0); |
7a292a7a | 202 | |
371d5dec MS |
203 | /* This hook is called from within gdb's many mini-event loops which |
204 | could steal control from a real user interface's event loop. It | |
205 | returns non-zero if the user is requesting a detach, zero | |
206 | otherwise. */ | |
7a292a7a | 207 | |
98bbd631 | 208 | int (*deprecated_ui_loop_hook) (int); |
c906108c SS |
209 | |
210 | /* Called instead of command_loop at top level. Can be invoked via | |
b5a2688f | 211 | throw_exception(). */ |
c906108c | 212 | |
9a4105ab | 213 | void (*deprecated_command_loop_hook) (void); |
c906108c SS |
214 | |
215 | ||
c906108c SS |
216 | /* Called from print_frame_info to list the line we stopped in. */ |
217 | ||
371d5dec MS |
218 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
219 | int line, | |
220 | int stopline, | |
221 | int noerror); | |
c906108c SS |
222 | /* Replaces most of query. */ |
223 | ||
9a4105ab | 224 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
225 | |
226 | /* Replaces most of warning. */ | |
227 | ||
9a4105ab | 228 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 229 | |
9a4105ab AC |
230 | /* These three functions support getting lines of text from the user. |
231 | They are used in sequence. First deprecated_readline_begin_hook is | |
232 | called with a text string that might be (for example) a message for | |
233 | the user to type in a sequence of commands to be executed at a | |
234 | breakpoint. If this function calls back to a GUI, it might take | |
235 | this opportunity to pop up a text interaction window with this | |
236 | message. Next, deprecated_readline_hook is called with a prompt | |
237 | that is emitted prior to collecting the user input. It can be | |
238 | called multiple times. Finally, deprecated_readline_end_hook is | |
239 | called to notify the GUI that we are done with the interaction | |
240 | window and it can close it. */ | |
c906108c | 241 | |
9a4105ab AC |
242 | void (*deprecated_readline_begin_hook) (char *, ...); |
243 | char *(*deprecated_readline_hook) (char *); | |
244 | void (*deprecated_readline_end_hook) (void); | |
c906108c | 245 | |
6426a772 | 246 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 247 | to or detached from an already running process. */ |
6426a772 | 248 | |
9a4105ab AC |
249 | void (*deprecated_attach_hook) (void); |
250 | void (*deprecated_detach_hook) (void); | |
6426a772 | 251 | |
371d5dec MS |
252 | /* Called during long calculations to allow GUI to repair window |
253 | damage, and to check for stop buttons, etc... */ | |
c906108c | 254 | |
9a4105ab | 255 | void (*deprecated_interactive_hook) (void); |
c906108c | 256 | |
c378eb4e | 257 | /* Tell the GUI someone changed the register REGNO. -1 means |
c906108c | 258 | that the caller does not know which register changed or |
371d5dec | 259 | that several registers have changed (see value_assign). */ |
9a4105ab | 260 | void (*deprecated_register_changed_hook) (int regno); |
c906108c | 261 | |
371d5dec MS |
262 | /* Called when going to wait for the target. Usually allows the GUI |
263 | to run while waiting for target events. */ | |
c906108c | 264 | |
9a4105ab | 265 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
266 | struct target_waitstatus *status, |
267 | int options); | |
c906108c | 268 | |
371d5dec MS |
269 | /* Used by UI as a wrapper around command execution. May do various |
270 | things like enabling/disabling buttons, etc... */ | |
c906108c | 271 | |
371d5dec MS |
272 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
273 | char *cmd, int from_tty); | |
c906108c | 274 | |
96baa820 JM |
275 | /* Called after a `set' command has finished. Is only run if the |
276 | `set' command succeeded. */ | |
277 | ||
9a4105ab | 278 | void (*deprecated_set_hook) (struct cmd_list_element * c); |
96baa820 | 279 | |
c906108c SS |
280 | /* Called when the current thread changes. Argument is thread id. */ |
281 | ||
9a4105ab | 282 | void (*deprecated_context_hook) (int id); |
c906108c | 283 | |
c906108c SS |
284 | /* Handler for SIGHUP. */ |
285 | ||
286 | #ifdef SIGHUP | |
392a587b | 287 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 288 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 289 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 290 | /* static */ int |
d0c8cdfb | 291 | quit_cover (void *s) |
c906108c | 292 | { |
c5aa993b | 293 | caution = 0; /* Throw caution to the wind -- we're exiting. |
371d5dec MS |
294 | This prevents asking the user dumb |
295 | questions. */ | |
c5aa993b | 296 | quit_command ((char *) 0, 0); |
c906108c SS |
297 | return 0; |
298 | } | |
299 | #endif /* defined SIGHUP */ | |
300 | \f | |
7a9dd1b2 | 301 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 302 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 303 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 304 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 305 | /* static */ int source_line_number; |
c906108c SS |
306 | |
307 | /* Name of the file we are sourcing. */ | |
392a587b | 308 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 309 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 310 | event-top.c into this file, top.c. */ |
05159abe | 311 | /* static */ const char *source_file_name; |
c906108c | 312 | |
c906108c SS |
313 | /* Clean up on error during a "source" command (or execution of a |
314 | user-defined command). */ | |
315 | ||
d318976c | 316 | void |
e41a3b1a | 317 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
318 | { |
319 | /* Restore the previous input stream. */ | |
320 | instream = stream; | |
321 | } | |
322 | ||
323 | /* Read commands from STREAM. */ | |
324 | void | |
fba45db2 | 325 | read_command_file (FILE *stream) |
c906108c SS |
326 | { |
327 | struct cleanup *cleanups; | |
328 | ||
e41a3b1a | 329 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 330 | instream = stream; |
c5aa993b | 331 | command_loop (); |
c906108c SS |
332 | do_cleanups (cleanups); |
333 | } | |
334 | \f | |
507f3c78 | 335 | void (*pre_init_ui_hook) (void); |
c906108c | 336 | |
e41a3b1a AC |
337 | #ifdef __MSDOS__ |
338 | void | |
339 | do_chdir_cleanup (void *old_dir) | |
340 | { | |
341 | chdir (old_dir); | |
b8c9b27d | 342 | xfree (old_dir); |
e41a3b1a AC |
343 | } |
344 | #endif | |
345 | ||
028d0ed5 | 346 | struct cleanup * |
4e5d721f DE |
347 | prepare_execute_command (void) |
348 | { | |
028d0ed5 TJB |
349 | struct value *mark; |
350 | struct cleanup *cleanup; | |
351 | ||
352 | mark = value_mark (); | |
353 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 354 | |
371d5dec MS |
355 | /* With multiple threads running while the one we're examining is |
356 | stopped, the dcache can get stale without us being able to detect | |
357 | it. For the duration of the command, though, use the dcache to | |
358 | help things like backtrace. */ | |
4e5d721f DE |
359 | if (non_stop) |
360 | target_dcache_invalidate (); | |
028d0ed5 TJB |
361 | |
362 | return cleanup; | |
4e5d721f DE |
363 | } |
364 | ||
648bf667 | 365 | /* Execute the line P as a command, in the current user context. |
d318976c | 366 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 367 | |
d318976c FN |
368 | void |
369 | execute_command (char *p, int from_tty) | |
c906108c | 370 | { |
028d0ed5 | 371 | struct cleanup *cleanup; |
52f0bd74 AC |
372 | struct cmd_list_element *c; |
373 | enum language flang; | |
d318976c FN |
374 | static int warned = 0; |
375 | char *line; | |
4e5d721f | 376 | |
028d0ed5 | 377 | cleanup = prepare_execute_command (); |
c906108c | 378 | |
d318976c FN |
379 | /* Force cleanup of any alloca areas if using C alloca instead of |
380 | a builtin alloca. */ | |
381 | alloca (0); | |
c906108c | 382 | |
d318976c FN |
383 | /* This can happen when command_line_input hits end of file. */ |
384 | if (p == NULL) | |
5fe41fbf TT |
385 | { |
386 | do_cleanups (cleanup); | |
387 | return; | |
388 | } | |
c906108c | 389 | |
49d03eab | 390 | target_log_command (p); |
8b93c638 | 391 | |
d318976c FN |
392 | while (*p == ' ' || *p == '\t') |
393 | p++; | |
394 | if (*p) | |
8b93c638 | 395 | { |
d318976c FN |
396 | char *arg; |
397 | line = p; | |
8b93c638 | 398 | |
16026cd7 AS |
399 | /* If trace-commands is set then this will print this command. */ |
400 | print_command_trace (p); | |
401 | ||
d318976c | 402 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 403 | |
d318976c FN |
404 | /* Pass null arg rather than an empty one. */ |
405 | arg = *p ? p : 0; | |
8b93c638 | 406 | |
9f60d481 AC |
407 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
408 | while the is_complete_command(cfunc) test is just plain | |
409 | bogus. They should both be replaced by a test of the form | |
410 | c->strip_trailing_white_space_p. */ | |
411 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
412 | can't be replaced with func. This is because it is the | |
413 | cfunc, and not the func, that has the value that the | |
414 | is_complete_command hack is testing for. */ | |
415 | /* Clear off trailing whitespace, except for set and complete | |
416 | command. */ | |
d318976c FN |
417 | if (arg |
418 | && c->type != set_cmd | |
bbaca940 | 419 | && !is_complete_command (c)) |
8b93c638 | 420 | { |
d318976c FN |
421 | p = arg + strlen (arg) - 1; |
422 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
423 | p--; | |
424 | *(p + 1) = '\0'; | |
8b93c638 JM |
425 | } |
426 | ||
371d5dec | 427 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 428 | execute_cmd_pre_hook (c); |
c906108c | 429 | |
d318976c FN |
430 | if (c->flags & DEPRECATED_WARN_USER) |
431 | deprecated_cmd_warning (&line); | |
c906108c | 432 | |
d318976c FN |
433 | if (c->class == class_user) |
434 | execute_user_command (c, arg); | |
435 | else if (c->type == set_cmd || c->type == show_cmd) | |
436 | do_setshow_command (arg, from_tty & caution, c); | |
f436dd25 | 437 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 438 | error (_("That is not a command, just a help topic.")); |
9a4105ab AC |
439 | else if (deprecated_call_command_hook) |
440 | deprecated_call_command_hook (c, arg, from_tty & caution); | |
d318976c | 441 | else |
f436dd25 | 442 | cmd_func (c, arg, from_tty & caution); |
d318976c | 443 | |
371d5dec | 444 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 445 | execute_cmd_post_hook (c); |
c906108c | 446 | |
c906108c SS |
447 | } |
448 | ||
52efb61a DJ |
449 | /* Tell the user if the language has changed (except first time). |
450 | First make sure that a new frame has been selected, in case this | |
451 | command or the hooks changed the program state. */ | |
452 | deprecated_safe_get_selected_frame (); | |
d318976c | 453 | if (current_language != expected_language) |
c906108c | 454 | { |
52efb61a | 455 | if (language_mode == language_mode_auto && info_verbose) |
c906108c | 456 | { |
d318976c | 457 | language_info (1); /* Print what changed. */ |
c906108c | 458 | } |
d318976c | 459 | warned = 0; |
c906108c SS |
460 | } |
461 | ||
d318976c FN |
462 | /* Warn the user if the working language does not match the |
463 | language of the current frame. Only warn the user if we are | |
371d5dec | 464 | actually running the program, i.e. there is a stack. */ |
d318976c FN |
465 | /* FIXME: This should be cacheing the frame and only running when |
466 | the frame changes. */ | |
467 | ||
d729566a | 468 | if (has_stack_frames ()) |
c906108c | 469 | { |
d318976c FN |
470 | flang = get_frame_language (); |
471 | if (!warned | |
472 | && flang != language_unknown | |
473 | && flang != current_language->la_language) | |
c906108c | 474 | { |
d318976c FN |
475 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
476 | warned = 1; | |
c906108c | 477 | } |
c906108c | 478 | } |
028d0ed5 TJB |
479 | |
480 | do_cleanups (cleanup); | |
c906108c SS |
481 | } |
482 | ||
5da1313b JK |
483 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
484 | returned string, do not display it to the screen. BATCH_FLAG will be | |
485 | temporarily set to true. */ | |
486 | ||
487 | char * | |
488 | execute_command_to_string (char *p, int from_tty) | |
489 | { | |
490 | struct ui_file *str_file; | |
491 | struct cleanup *cleanup; | |
492 | char *retval; | |
493 | ||
494 | /* GDB_STDOUT should be better already restored during these | |
495 | restoration callbacks. */ | |
496 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
497 | ||
498 | str_file = mem_fileopen (); | |
499 | ||
8d4d924b | 500 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
501 | make_cleanup_restore_ui_file (&gdb_stdout); |
502 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
503 | make_cleanup_restore_ui_file (&gdb_stdlog); |
504 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
505 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
506 | ||
79a45e25 | 507 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
508 | warning (_("Current output protocol does not support redirection")); |
509 | else | |
79a45e25 | 510 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
511 | |
512 | gdb_stdout = str_file; | |
513 | gdb_stderr = str_file; | |
8d4d924b JK |
514 | gdb_stdlog = str_file; |
515 | gdb_stdtarg = str_file; | |
516 | gdb_stdtargerr = str_file; | |
5da1313b JK |
517 | |
518 | execute_command (p, from_tty); | |
519 | ||
520 | retval = ui_file_xstrdup (str_file, NULL); | |
521 | ||
522 | do_cleanups (cleanup); | |
523 | ||
524 | return retval; | |
525 | } | |
526 | ||
d318976c FN |
527 | /* Read commands from `instream' and execute them |
528 | until end of file or error reading instream. */ | |
c906108c | 529 | |
d318976c FN |
530 | void |
531 | command_loop (void) | |
c906108c | 532 | { |
d318976c FN |
533 | struct cleanup *old_chain; |
534 | char *command; | |
535 | int stdin_is_tty = ISATTY (stdin); | |
c5aa993b | 536 | |
d318976c FN |
537 | while (instream && !feof (instream)) |
538 | { | |
d318976c | 539 | if (window_hook && instream == stdin) |
95298e72 | 540 | (*window_hook) (instream, get_prompt (0)); |
c906108c | 541 | |
d318976c FN |
542 | quit_flag = 0; |
543 | if (instream == stdin && stdin_is_tty) | |
544 | reinitialize_more_filter (); | |
545 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 546 | |
c378eb4e | 547 | /* Get a command-line. This calls the readline package. */ |
d318976c | 548 | command = command_line_input (instream == stdin ? |
95298e72 | 549 | get_prompt (0) : (char *) NULL, |
d318976c | 550 | instream == stdin, "prompt"); |
d318976c | 551 | if (command == 0) |
5fe41fbf TT |
552 | { |
553 | do_cleanups (old_chain); | |
554 | return; | |
555 | } | |
c906108c | 556 | |
0f3bb72e | 557 | make_command_stats_cleanup (1); |
9e0b60a8 | 558 | |
d318976c | 559 | execute_command (command, instream == stdin); |
347bddb7 PA |
560 | |
561 | /* Do any commands attached to breakpoint we are stopped at. */ | |
562 | bpstat_do_actions (); | |
563 | ||
d318976c | 564 | do_cleanups (old_chain); |
9e0b60a8 | 565 | } |
9e0b60a8 | 566 | } |
d318976c | 567 | \f |
47a80e90 TT |
568 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
569 | set via prevent_dont_repeat. */ | |
570 | ||
571 | static int suppress_dont_repeat = 0; | |
572 | ||
d318976c | 573 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 574 | |
d318976c FN |
575 | void |
576 | dont_repeat (void) | |
9e0b60a8 | 577 | { |
47a80e90 | 578 | if (suppress_dont_repeat || server_command) |
d318976c | 579 | return; |
9e0b60a8 | 580 | |
d318976c | 581 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
582 | thing read from stdin in line and don't want to delete it. Null |
583 | lines won't repeat here in any case. */ | |
d318976c | 584 | if (instream == stdin) |
dc7eb48e | 585 | *saved_command_line = 0; |
9e0b60a8 | 586 | } |
47a80e90 TT |
587 | |
588 | /* Prevent dont_repeat from working, and return a cleanup that | |
589 | restores the previous state. */ | |
590 | ||
591 | struct cleanup * | |
592 | prevent_dont_repeat (void) | |
593 | { | |
594 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
595 | ||
596 | suppress_dont_repeat = 1; | |
597 | return result; | |
598 | } | |
599 | ||
d318976c FN |
600 | \f |
601 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 602 | |
d318976c FN |
603 | It prints PROMPT_ARG once at the start. |
604 | Action is compatible with "readline", e.g. space for the result is | |
605 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 606 | |
d318976c FN |
607 | A NULL return means end of file. */ |
608 | char * | |
609 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 610 | { |
d318976c FN |
611 | int c; |
612 | char *result; | |
613 | int input_index = 0; | |
614 | int result_size = 80; | |
9e0b60a8 | 615 | |
d318976c | 616 | if (prompt_arg) |
9e0b60a8 | 617 | { |
d318976c FN |
618 | /* Don't use a _filtered function here. It causes the assumed |
619 | character position to be off, since the newline we read from | |
620 | the user is not accounted for. */ | |
621 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
9e0b60a8 JM |
622 | gdb_flush (gdb_stdout); |
623 | } | |
624 | ||
d318976c | 625 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
626 | |
627 | while (1) | |
628 | { | |
d318976c FN |
629 | /* Read from stdin if we are executing a user defined command. |
630 | This is the right thing for prompt_for_continue, at least. */ | |
631 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 632 | |
d318976c | 633 | if (c == EOF) |
9e0b60a8 | 634 | { |
d318976c FN |
635 | if (input_index > 0) |
636 | /* The last line does not end with a newline. Return it, and | |
637 | if we are called again fgetc will still return EOF and | |
638 | we'll return NULL then. */ | |
9e0b60a8 | 639 | break; |
b8c9b27d | 640 | xfree (result); |
d318976c | 641 | return NULL; |
9e0b60a8 | 642 | } |
c5aa993b | 643 | |
d318976c | 644 | if (c == '\n') |
9e0b60a8 | 645 | { |
d318976c FN |
646 | if (input_index > 0 && result[input_index - 1] == '\r') |
647 | input_index--; | |
648 | break; | |
9e0b60a8 | 649 | } |
9e0b60a8 | 650 | |
d318976c FN |
651 | result[input_index++] = c; |
652 | while (input_index >= result_size) | |
9e0b60a8 | 653 | { |
d318976c FN |
654 | result_size *= 2; |
655 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 656 | } |
9e0b60a8 JM |
657 | } |
658 | ||
d318976c FN |
659 | result[input_index++] = '\0'; |
660 | return result; | |
9e0b60a8 JM |
661 | } |
662 | ||
d318976c FN |
663 | /* Variables which control command line editing and history |
664 | substitution. These variables are given default values at the end | |
665 | of this file. */ | |
666 | static int command_editing_p; | |
920d2a44 | 667 | |
d318976c FN |
668 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
669 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 670 | event-top.c into this file, top.c. */ |
920d2a44 | 671 | |
d318976c | 672 | /* static */ int history_expansion_p; |
920d2a44 | 673 | |
d318976c | 674 | static int write_history_p; |
920d2a44 AC |
675 | static void |
676 | show_write_history_p (struct ui_file *file, int from_tty, | |
677 | struct cmd_list_element *c, const char *value) | |
678 | { | |
679 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
680 | value); | |
681 | } | |
682 | ||
d318976c | 683 | static int history_size; |
920d2a44 AC |
684 | static void |
685 | show_history_size (struct ui_file *file, int from_tty, | |
686 | struct cmd_list_element *c, const char *value) | |
687 | { | |
688 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
689 | value); | |
690 | } | |
691 | ||
d318976c | 692 | static char *history_filename; |
920d2a44 AC |
693 | static void |
694 | show_history_filename (struct ui_file *file, int from_tty, | |
695 | struct cmd_list_element *c, const char *value) | |
696 | { | |
3e43a32a MS |
697 | fprintf_filtered (file, _("The filename in which to record " |
698 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
699 | value); |
700 | } | |
9e0b60a8 | 701 | |
b4f5539f | 702 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 703 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
704 | a single gdb invocation. At the ordinary top-level prompt we might |
705 | be using the async readline. That means we can't use | |
706 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
707 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
708 | `define'), gdb wants a synchronous response. |
709 | ||
710 | We used to call readline() directly, running it in synchronous | |
711 | mode. But mixing modes this way is not supported, and as of | |
712 | readline 5.x it no longer works; the arrow keys come unbound during | |
713 | the synchronous call. So we make a nested call into the event | |
714 | loop. That's what gdb_readline_wrapper is for. */ | |
715 | ||
716 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
717 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
718 | the user types Control-D for EOF. */ | |
719 | static int gdb_readline_wrapper_done; | |
720 | ||
721 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
722 | is seen. */ | |
723 | static char *gdb_readline_wrapper_result; | |
724 | ||
725 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
726 | to be called after the newline is processed (which will redisplay | |
727 | the prompt). But in gdb_readline_wrapper we will not get a new | |
728 | prompt until the next call, or until we return to the event loop. | |
729 | So we disable this hook around the newline and restore it before we | |
730 | return. */ | |
731 | static void (*saved_after_char_processing_hook) (void); | |
732 | ||
733 | /* This function is called when readline has seen a complete line of | |
734 | text. */ | |
735 | ||
736 | static void | |
737 | gdb_readline_wrapper_line (char *line) | |
738 | { | |
739 | gdb_assert (!gdb_readline_wrapper_done); | |
740 | gdb_readline_wrapper_result = line; | |
741 | gdb_readline_wrapper_done = 1; | |
742 | ||
743 | /* Prevent operate-and-get-next from acting too early. */ | |
744 | saved_after_char_processing_hook = after_char_processing_hook; | |
745 | after_char_processing_hook = NULL; | |
1b05479a DJ |
746 | |
747 | /* Prevent parts of the prompt from being redisplayed if annotations | |
748 | are enabled, and readline's state getting out of sync. */ | |
749 | if (async_command_editing_p) | |
750 | rl_callback_handler_remove (); | |
2e03ee74 DJ |
751 | } |
752 | ||
753 | struct gdb_readline_wrapper_cleanup | |
754 | { | |
755 | void (*handler_orig) (char *); | |
2e03ee74 DJ |
756 | int already_prompted_orig; |
757 | }; | |
758 | ||
759 | static void | |
760 | gdb_readline_wrapper_cleanup (void *arg) | |
761 | { | |
762 | struct gdb_readline_wrapper_cleanup *cleanup = arg; | |
763 | ||
2e03ee74 | 764 | rl_already_prompted = cleanup->already_prompted_orig; |
2e03ee74 DJ |
765 | |
766 | gdb_assert (input_handler == gdb_readline_wrapper_line); | |
767 | input_handler = cleanup->handler_orig; | |
768 | gdb_readline_wrapper_result = NULL; | |
769 | gdb_readline_wrapper_done = 0; | |
770 | ||
771 | after_char_processing_hook = saved_after_char_processing_hook; | |
772 | saved_after_char_processing_hook = NULL; | |
773 | ||
774 | xfree (cleanup); | |
775 | } | |
776 | ||
b4f5539f TT |
777 | char * |
778 | gdb_readline_wrapper (char *prompt) | |
779 | { | |
2e03ee74 DJ |
780 | struct cleanup *back_to; |
781 | struct gdb_readline_wrapper_cleanup *cleanup; | |
782 | char *retval; | |
783 | ||
784 | cleanup = xmalloc (sizeof (*cleanup)); | |
785 | cleanup->handler_orig = input_handler; | |
786 | input_handler = gdb_readline_wrapper_line; | |
787 | ||
2e03ee74 DJ |
788 | cleanup->already_prompted_orig = rl_already_prompted; |
789 | ||
790 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); | |
791 | ||
792 | /* Display our prompt and prevent double prompt display. */ | |
1b05479a | 793 | display_gdb_prompt (prompt); |
2e03ee74 DJ |
794 | rl_already_prompted = 1; |
795 | ||
362646f5 | 796 | if (after_char_processing_hook) |
2e03ee74 DJ |
797 | (*after_char_processing_hook) (); |
798 | gdb_assert (after_char_processing_hook == NULL); | |
799 | ||
e0dd0826 | 800 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
801 | if (gdb_readline_wrapper_done) |
802 | break; | |
b4f5539f | 803 | |
2e03ee74 DJ |
804 | retval = gdb_readline_wrapper_result; |
805 | do_cleanups (back_to); | |
806 | return retval; | |
b4f5539f TT |
807 | } |
808 | ||
9e0b60a8 | 809 | \f |
467d8519 TT |
810 | /* The current saved history number from operate-and-get-next. |
811 | This is -1 if not valid. */ | |
812 | static int operate_saved_history = -1; | |
813 | ||
814 | /* This is put on the appropriate hook and helps operate-and-get-next | |
815 | do its work. */ | |
b9362cc7 | 816 | static void |
5ae5f592 | 817 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
818 | { |
819 | int delta = where_history () - operate_saved_history; | |
5d502164 | 820 | |
467d8519 TT |
821 | /* The `key' argument to rl_get_previous_history is ignored. */ |
822 | rl_get_previous_history (delta, 0); | |
823 | operate_saved_history = -1; | |
824 | ||
825 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 826 | rl_redisplay (); |
467d8519 TT |
827 | |
828 | after_char_processing_hook = NULL; | |
829 | rl_pre_input_hook = NULL; | |
830 | } | |
831 | ||
832 | /* This is a gdb-local readline command handler. It accepts the | |
833 | current command line (like RET does) and, if this command was taken | |
834 | from the history, arranges for the next command in the history to | |
835 | appear on the command line when the prompt returns. | |
836 | We ignore the arguments. */ | |
837 | static int | |
838 | gdb_rl_operate_and_get_next (int count, int key) | |
839 | { | |
b5686e99 MK |
840 | int where; |
841 | ||
362646f5 AC |
842 | /* Use the async hook. */ |
843 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 844 | |
b5686e99 MK |
845 | /* Find the current line, and find the next line to use. */ |
846 | where = where_history(); | |
847 | ||
848 | /* FIXME: kettenis/20020817: max_input_history is renamed into | |
849 | history_max_entries in readline-4.2. When we do a new readline | |
850 | import, we should probably change it here too, even though | |
851 | readline maintains backwards compatibility for now by still | |
852 | defining max_input_history. */ | |
853 | if ((history_is_stifled () && (history_length >= max_input_history)) || | |
854 | (where >= history_length - 1)) | |
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++; | |
917 | #ifdef STOP_SIGNAL | |
918 | if (job_control) | |
362646f5 | 919 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
920 | #endif |
921 | ||
922 | while (1) | |
9e0b60a8 | 923 | { |
371d5dec MS |
924 | /* Make sure that all output has been output. Some machines may |
925 | let you get away with leaving out some of the gdb_flush, but | |
926 | not all. */ | |
d318976c FN |
927 | wrap_here (""); |
928 | gdb_flush (gdb_stdout); | |
929 | gdb_flush (gdb_stderr); | |
930 | ||
931 | if (source_file_name != NULL) | |
637537d0 | 932 | ++source_line_number; |
d318976c FN |
933 | |
934 | if (annotation_level > 1 && instream == stdin) | |
935 | { | |
306d9ac5 DC |
936 | puts_unfiltered ("\n\032\032pre-"); |
937 | puts_unfiltered (annotation_suffix); | |
938 | puts_unfiltered ("\n"); | |
d318976c FN |
939 | } |
940 | ||
941 | /* Don't use fancy stuff if not talking to stdin. */ | |
698ba934 | 942 | if (deprecated_readline_hook && input_from_terminal_p ()) |
d318976c | 943 | { |
9a4105ab | 944 | rl = (*deprecated_readline_hook) (local_prompt); |
d318976c | 945 | } |
698ba934 | 946 | else if (command_editing_p && input_from_terminal_p ()) |
d318976c | 947 | { |
b4f5539f | 948 | rl = gdb_readline_wrapper (local_prompt); |
d318976c | 949 | } |
9e0b60a8 | 950 | else |
d318976c FN |
951 | { |
952 | rl = gdb_readline (local_prompt); | |
953 | } | |
9e0b60a8 | 954 | |
d318976c FN |
955 | if (annotation_level > 1 && instream == stdin) |
956 | { | |
306d9ac5 DC |
957 | puts_unfiltered ("\n\032\032post-"); |
958 | puts_unfiltered (annotation_suffix); | |
959 | puts_unfiltered ("\n"); | |
d318976c | 960 | } |
9e0b60a8 | 961 | |
d318976c | 962 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 963 | { |
d318976c FN |
964 | got_eof = 1; |
965 | break; | |
9e0b60a8 | 966 | } |
d318976c FN |
967 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
968 | { | |
969 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
970 | nline = (char *) xrealloc (linebuffer, linelength); | |
971 | p += nline - linebuffer; | |
972 | linebuffer = nline; | |
973 | } | |
974 | p1 = rl; | |
975 | /* Copy line. Don't copy null at end. (Leaves line alone | |
371d5dec | 976 | if this was just a newline). */ |
d318976c FN |
977 | while (*p1) |
978 | *p++ = *p1++; | |
9e0b60a8 | 979 | |
b8c9b27d | 980 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 981 | |
d318976c FN |
982 | if (p == linebuffer || *(p - 1) != '\\') |
983 | break; | |
9e0b60a8 | 984 | |
d318976c FN |
985 | p--; /* Put on top of '\'. */ |
986 | local_prompt = (char *) 0; | |
987 | } | |
9e0b60a8 | 988 | |
d318976c FN |
989 | #ifdef STOP_SIGNAL |
990 | if (job_control) | |
991 | signal (STOP_SIGNAL, SIG_DFL); | |
992 | #endif | |
993 | immediate_quit--; | |
9e0b60a8 | 994 | |
d318976c FN |
995 | if (got_eof) |
996 | return NULL; | |
9e0b60a8 | 997 | |
d318976c FN |
998 | #define SERVER_COMMAND_LENGTH 7 |
999 | server_command = | |
1000 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
bf896cb0 | 1001 | && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0; |
d318976c | 1002 | if (server_command) |
9e0b60a8 | 1003 | { |
d318976c FN |
1004 | /* Note that we don't set `line'. Between this and the check in |
1005 | dont_repeat, this insures that repeating will still do the | |
1006 | right thing. */ | |
1007 | *p = '\0'; | |
1008 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1009 | } |
9e0b60a8 | 1010 | |
d318976c FN |
1011 | /* Do history expansion if that is wished. */ |
1012 | if (history_expansion_p && instream == stdin | |
1013 | && ISATTY (instream)) | |
1014 | { | |
1015 | char *history_value; | |
1016 | int expanded; | |
9e0b60a8 | 1017 | |
d318976c FN |
1018 | *p = '\0'; /* Insert null now. */ |
1019 | expanded = history_expand (linebuffer, &history_value); | |
1020 | if (expanded) | |
1021 | { | |
1022 | /* Print the changes. */ | |
1023 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1024 | |
d318976c FN |
1025 | /* If there was an error, call this function again. */ |
1026 | if (expanded < 0) | |
1027 | { | |
b8c9b27d | 1028 | xfree (history_value); |
3e43a32a MS |
1029 | return command_line_input (prompt_arg, repeat, |
1030 | annotation_suffix); | |
d318976c FN |
1031 | } |
1032 | if (strlen (history_value) > linelength) | |
1033 | { | |
1034 | linelength = strlen (history_value) + 1; | |
1035 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1036 | } | |
1037 | strcpy (linebuffer, history_value); | |
1038 | p = linebuffer + strlen (linebuffer); | |
d318976c | 1039 | } |
91d2803c | 1040 | xfree (history_value); |
d318976c | 1041 | } |
9e0b60a8 | 1042 | |
371d5dec MS |
1043 | /* If we just got an empty line, and that is supposed to repeat the |
1044 | previous command, return the value in the global buffer. */ | |
d318976c | 1045 | if (repeat && p == linebuffer) |
dc7eb48e | 1046 | return saved_command_line; |
d318976c FN |
1047 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); |
1048 | if (repeat && !*p1) | |
dc7eb48e | 1049 | return saved_command_line; |
9e0b60a8 | 1050 | |
d318976c | 1051 | *p = 0; |
9e0b60a8 | 1052 | |
d318976c FN |
1053 | /* Add line to history if appropriate. */ |
1054 | if (instream == stdin | |
1055 | && ISATTY (stdin) && *linebuffer) | |
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 MS |
1094 | fprintf_filtered (stream, |
1095 | "Copyright (C) 2011 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 | } | |
1120 | fprintf_filtered (stream, "\"."); | |
c16158bc JM |
1121 | |
1122 | if (REPORT_BUGS_TO[0]) | |
1123 | { | |
1124 | fprintf_filtered (stream, | |
1125 | _("\nFor bug reporting instructions, please see:\n")); | |
7949220d | 1126 | fprintf_filtered (stream, "%s.", REPORT_BUGS_TO); |
c16158bc | 1127 | } |
9e0b60a8 | 1128 | } |
9e0b60a8 | 1129 | \f |
95298e72 PM |
1130 | |
1131 | /* get_prefix: access method for the GDB prefix string. */ | |
9e0b60a8 | 1132 | |
9e0b60a8 | 1133 | char * |
95298e72 | 1134 | get_prefix (int level) |
9e0b60a8 | 1135 | { |
95298e72 | 1136 | return PREFIX (level); |
9e0b60a8 JM |
1137 | } |
1138 | ||
95298e72 PM |
1139 | /* set_prefix: set method for the GDB prefix string. */ |
1140 | ||
9e0b60a8 | 1141 | void |
95298e72 PM |
1142 | set_prefix (const char *s, int level) |
1143 | { | |
1144 | /* If S is NULL, just free the PREFIX at level LEVEL and set to | |
1145 | NULL. */ | |
1146 | if (s == NULL) | |
1147 | { | |
1148 | xfree (PREFIX (level)); | |
1149 | PREFIX (level) = NULL; | |
1150 | } | |
1151 | else | |
1152 | { | |
1153 | char *p = xstrdup (s); | |
1154 | ||
1155 | xfree (PREFIX (level)); | |
1156 | PREFIX (level) = p; | |
1157 | } | |
1158 | } | |
1159 | ||
1160 | /* get_suffix: access method for the GDB suffix string. */ | |
1161 | ||
1162 | char * | |
1163 | get_suffix (int level) | |
9e0b60a8 | 1164 | { |
95298e72 PM |
1165 | return SUFFIX (level); |
1166 | } | |
d17b6f81 | 1167 | |
95298e72 | 1168 | /* set_suffix: set method for the GDB suffix string. */ |
d17b6f81 | 1169 | |
95298e72 PM |
1170 | void |
1171 | set_suffix (const char *s, int level) | |
1172 | { | |
1173 | /* If S is NULL, just free the SUFFIX at level LEVEL and set to | |
1174 | NULL. */ | |
1175 | if (s == NULL) | |
1176 | { | |
1177 | xfree (SUFFIX (level)); | |
1178 | SUFFIX (level) = NULL; | |
1179 | } | |
1180 | else | |
1181 | { | |
1182 | char *p = xstrdup (s); | |
1183 | ||
1184 | xfree (SUFFIX (level)); | |
1185 | SUFFIX (level) = p; | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | /* get_prompt: access method for the GDB prompt string. */ | |
1190 | ||
1191 | char * | |
1192 | get_prompt (int level) | |
1193 | { | |
1194 | return PROMPT (level); | |
1195 | } | |
1196 | ||
1197 | void | |
1198 | set_prompt (const char *s, int level) | |
1199 | { | |
1200 | /* If S is NULL, just free the PROMPT at level LEVEL and set to | |
1201 | NULL. */ | |
1202 | if (s == NULL) | |
1203 | { | |
1204 | xfree (PROMPT (level)); | |
1205 | PROMPT (level) = NULL; | |
1206 | } | |
1207 | else | |
1208 | { | |
1209 | char *p = xstrdup (s); | |
1210 | ||
1211 | xfree (PROMPT (0)); | |
1212 | PROMPT (0) = p; | |
1213 | ||
1214 | if (level == 0) | |
1215 | { | |
1216 | /* Also, free and set new_async_prompt so prompt changes sync up | |
1217 | with set/show prompt. */ | |
1218 | xfree (new_async_prompt); | |
1219 | new_async_prompt = xstrdup (PROMPT (0)); | |
1220 | } | |
1221 | } | |
9e0b60a8 | 1222 | } |
9e0b60a8 | 1223 | \f |
c5aa993b | 1224 | |
b0abbc58 | 1225 | struct qt_args |
9e0b60a8 | 1226 | { |
b0abbc58 JJ |
1227 | char *args; |
1228 | int from_tty; | |
1229 | }; | |
9e0b60a8 | 1230 | |
54a012c9 PA |
1231 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1232 | inferior, depending on how we originally gained control of it. */ | |
1233 | ||
1234 | static int | |
1235 | kill_or_detach (struct inferior *inf, void *args) | |
1236 | { | |
1237 | struct qt_args *qt = args; | |
1238 | struct thread_info *thread; | |
1239 | ||
6c95b8df PA |
1240 | if (inf->pid == 0) |
1241 | return 0; | |
1242 | ||
b8fa0bfa PA |
1243 | thread = any_thread_of_process (inf->pid); |
1244 | if (thread != NULL) | |
9e0b60a8 | 1245 | { |
54a012c9 | 1246 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1247 | |
1248 | /* Leave core files alone. */ | |
1249 | if (target_has_execution) | |
1250 | { | |
1251 | if (inf->attach_flag) | |
1252 | target_detach (qt->args, qt->from_tty); | |
1253 | else | |
1254 | target_kill (); | |
1255 | } | |
9e0b60a8 JM |
1256 | } |
1257 | ||
54a012c9 PA |
1258 | return 0; |
1259 | } | |
1260 | ||
b8fa0bfa PA |
1261 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1262 | will do to each inferior on a "quit". ARG points to a struct | |
1263 | ui_out where output is to be collected. */ | |
1264 | ||
1265 | static int | |
1266 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1267 | { | |
1268 | struct ui_file *stb = arg; | |
1269 | ||
6c95b8df PA |
1270 | if (inf->pid == 0) |
1271 | return 0; | |
1272 | ||
b8fa0bfa PA |
1273 | if (inf->attach_flag) |
1274 | fprintf_filtered (stb, | |
1275 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1276 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1277 | else | |
1278 | fprintf_filtered (stb, | |
1279 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1280 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1281 | ||
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | /* If necessary, make the user confirm that we should quit. Return | |
1286 | non-zero if we should quit, zero if we shouldn't. */ | |
1287 | ||
1288 | int | |
1289 | quit_confirm (void) | |
1290 | { | |
1291 | struct ui_file *stb; | |
1292 | struct cleanup *old_chain; | |
1293 | char *str; | |
1294 | int qr; | |
1295 | ||
1296 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1297 | if (!have_live_inferiors ()) | |
1298 | return 1; | |
1299 | ||
1300 | /* Build the query string as a single string. */ | |
1301 | stb = mem_fileopen (); | |
1302 | old_chain = make_cleanup_ui_file_delete (stb); | |
1303 | ||
1304 | /* This is something of a hack. But there's no reliable way to see | |
1305 | if a GUI is running. The `use_windows' variable doesn't cut | |
1306 | it. */ | |
1307 | if (deprecated_init_ui_hook) | |
1308 | fprintf_filtered (stb, _("A debugging session is active.\n" | |
1309 | "Do you still want to close the debugger?")); | |
1310 | else | |
1311 | { | |
1312 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); | |
1313 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1314 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
1315 | } | |
1316 | ||
1317 | str = ui_file_xstrdup (stb, NULL); | |
1318 | make_cleanup (xfree, str); | |
1319 | ||
1320 | qr = query ("%s", str); | |
1321 | do_cleanups (old_chain); | |
1322 | return qr; | |
1323 | } | |
1324 | ||
54a012c9 PA |
1325 | /* Helper routine for quit_force that requires error handling. */ |
1326 | ||
1327 | static int | |
1328 | quit_target (void *arg) | |
1329 | { | |
1330 | struct qt_args *qt = (struct qt_args *)arg; | |
1331 | ||
1332 | /* Kill or detach all inferiors. */ | |
c35b1492 | 1333 | iterate_over_inferiors (kill_or_detach, qt); |
54a012c9 | 1334 | |
aa76d38d PA |
1335 | /* Give all pushed targets a chance to do minimal cleanup, and pop |
1336 | them all out. */ | |
1337 | pop_all_targets (1); | |
9e0b60a8 JM |
1338 | |
1339 | /* Save the history information if it is appropriate to do so. */ | |
1340 | if (write_history_p && history_filename) | |
1341 | write_history (history_filename); | |
1342 | ||
371d5dec MS |
1343 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before |
1344 | exiting. */ | |
b0abbc58 JJ |
1345 | return 0; |
1346 | } | |
1347 | ||
1348 | /* Quit without asking for confirmation. */ | |
1349 | ||
1350 | void | |
1351 | quit_force (char *args, int from_tty) | |
1352 | { | |
1353 | int exit_code = 0; | |
365c70b1 | 1354 | struct qt_args qt; |
b0abbc58 JJ |
1355 | |
1356 | /* An optional expression may be used to cause gdb to terminate with the | |
371d5dec | 1357 | value of that expression. */ |
b0abbc58 JJ |
1358 | if (args) |
1359 | { | |
1360 | struct value *val = parse_and_eval (args); | |
1361 | ||
1362 | exit_code = (int) value_as_long (val); | |
1363 | } | |
4b0ad762 AS |
1364 | else if (return_child_result) |
1365 | exit_code = return_child_result_value; | |
b0abbc58 | 1366 | |
365c70b1 JJ |
1367 | qt.args = args; |
1368 | qt.from_tty = from_tty; | |
1369 | ||
b0abbc58 | 1370 | /* We want to handle any quit errors and exit regardless. */ |
365c70b1 | 1371 | catch_errors (quit_target, &qt, |
b0abbc58 JJ |
1372 | "Quitting: ", RETURN_MASK_ALL); |
1373 | ||
9e0b60a8 JM |
1374 | exit (exit_code); |
1375 | } | |
1376 | ||
698ba934 DJ |
1377 | /* Returns whether GDB is running on a terminal and input is |
1378 | currently coming from that terminal. */ | |
9e0b60a8 JM |
1379 | |
1380 | int | |
fba45db2 | 1381 | input_from_terminal_p (void) |
9e0b60a8 | 1382 | { |
c63a1f86 JK |
1383 | if (batch_flag) |
1384 | return 0; | |
1385 | ||
698ba934 DJ |
1386 | if (gdb_has_a_terminal () && instream == stdin) |
1387 | return 1; | |
1388 | ||
1389 | /* If INSTREAM is unset, and we are not in a user command, we | |
1390 | must be in Insight. That's like having a terminal, for our | |
1391 | purposes. */ | |
1392 | if (instream == NULL && !in_user_command) | |
1393 | return 1; | |
1394 | ||
1395 | return 0; | |
9e0b60a8 JM |
1396 | } |
1397 | \f | |
9e0b60a8 | 1398 | static void |
fba45db2 | 1399 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1400 | { |
dc7eb48e PA |
1401 | /* Can't call dont_repeat here because we're not necessarily reading |
1402 | from stdin. */ | |
1403 | *saved_command_line = 0; | |
9e0b60a8 JM |
1404 | } |
1405 | \f | |
1406 | /* Functions to manipulate command line editing control variables. */ | |
1407 | ||
1408 | /* Number of commands to print in each call to show_commands. */ | |
1409 | #define Hist_print 10 | |
d318976c | 1410 | void |
fba45db2 | 1411 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1412 | { |
1413 | /* Index for history commands. Relative to history_base. */ | |
1414 | int offset; | |
1415 | ||
1416 | /* Number of the history entry which we are planning to display next. | |
1417 | Relative to history_base. */ | |
1418 | static int num = 0; | |
1419 | ||
1420 | /* The first command in the history which doesn't exist (i.e. one more | |
1421 | than the number of the last command). Relative to history_base. */ | |
1422 | int hist_len; | |
1423 | ||
9e0b60a8 JM |
1424 | /* Print out some of the commands from the command history. */ |
1425 | /* First determine the length of the history list. */ | |
1426 | hist_len = history_size; | |
1427 | for (offset = 0; offset < history_size; offset++) | |
1428 | { | |
1429 | if (!history_get (history_base + offset)) | |
1430 | { | |
1431 | hist_len = offset; | |
1432 | break; | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | if (args) | |
1437 | { | |
1438 | if (args[0] == '+' && args[1] == '\0') | |
1439 | /* "info editing +" should print from the stored position. */ | |
1440 | ; | |
1441 | else | |
1442 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1443 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1444 | } |
1445 | /* "show commands" means print the last Hist_print commands. */ | |
1446 | else | |
1447 | { | |
1448 | num = hist_len - Hist_print; | |
1449 | } | |
1450 | ||
1451 | if (num < 0) | |
1452 | num = 0; | |
1453 | ||
1454 | /* If there are at least Hist_print commands, we want to display the last | |
1455 | Hist_print rather than, say, the last 6. */ | |
1456 | if (hist_len - num < Hist_print) | |
1457 | { | |
1458 | num = hist_len - Hist_print; | |
1459 | if (num < 0) | |
1460 | num = 0; | |
1461 | } | |
1462 | ||
1463 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1464 | { | |
1465 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1466 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1467 | } |
1468 | ||
1469 | /* The next command we want to display is the next one that we haven't | |
1470 | displayed yet. */ | |
1471 | num += Hist_print; | |
1472 | ||
1473 | /* If the user repeats this command with return, it should do what | |
1474 | "show commands +" does. This is unnecessary if arg is null, | |
1475 | because "show commands +" is not useful after "show commands". */ | |
1476 | if (from_tty && args) | |
1477 | { | |
1478 | args[0] = '+'; | |
1479 | args[1] = '\0'; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | /* Called by do_setshow_command. */ | |
9e0b60a8 | 1484 | static void |
fba45db2 | 1485 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1486 | { |
1487 | if (history_size == INT_MAX) | |
1488 | unstifle_history (); | |
1489 | else if (history_size >= 0) | |
1490 | stifle_history (history_size); | |
1491 | else | |
1492 | { | |
1493 | history_size = INT_MAX; | |
8a3fe4f8 | 1494 | error (_("History size must be non-negative")); |
9e0b60a8 JM |
1495 | } |
1496 | } | |
1497 | ||
d318976c | 1498 | void |
fba45db2 | 1499 | set_history (char *args, int from_tty) |
9e0b60a8 | 1500 | { |
3e43a32a MS |
1501 | printf_unfiltered (_("\"set history\" must be followed " |
1502 | "by the name of a history subcommand.\n")); | |
9e0b60a8 JM |
1503 | help_list (sethistlist, "set history ", -1, gdb_stdout); |
1504 | } | |
1505 | ||
d318976c | 1506 | void |
fba45db2 | 1507 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1508 | { |
1509 | cmd_show_list (showhistlist, from_tty, ""); | |
1510 | } | |
1511 | ||
371d5dec | 1512 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1513 | |
1514 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1515 | void |
fba45db2 | 1516 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1517 | { |
1518 | char *cmdname = "verbose"; | |
1519 | struct cmd_list_element *showcmd; | |
1520 | ||
1521 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1522 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1523 | |
1524 | if (info_verbose) | |
1525 | { | |
1526 | c->doc = "Set verbose printing of informational messages."; | |
1527 | showcmd->doc = "Show verbose printing of informational messages."; | |
1528 | } | |
1529 | else | |
1530 | { | |
1531 | c->doc = "Set verbosity."; | |
1532 | showcmd->doc = "Show verbosity."; | |
1533 | } | |
1534 | } | |
1535 | ||
9e0b60a8 | 1536 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1537 | have been read so that the user can change the history file via his |
1538 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1539 | overrides all of this. */ | |
9e0b60a8 JM |
1540 | |
1541 | void | |
fba45db2 | 1542 | init_history (void) |
9e0b60a8 JM |
1543 | { |
1544 | char *tmpenv; | |
1545 | ||
1546 | tmpenv = getenv ("HISTSIZE"); | |
1547 | if (tmpenv) | |
1548 | history_size = atoi (tmpenv); | |
1549 | else if (!history_size) | |
1550 | history_size = 256; | |
1551 | ||
1552 | stifle_history (history_size); | |
1553 | ||
1554 | tmpenv = getenv ("GDBHISTFILE"); | |
1555 | if (tmpenv) | |
1b36a34b | 1556 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1557 | else if (!history_filename) |
1558 | { | |
1559 | /* We include the current directory so that if the user changes | |
1560 | directories the file written will be the same as the one | |
1561 | that was read. */ | |
a0b3c4fd | 1562 | #ifdef __MSDOS__ |
eb2f494a | 1563 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1564 | history_filename = concat (current_directory, "/_gdb_history", |
1565 | (char *)NULL); | |
a0b3c4fd | 1566 | #else |
1754f103 MK |
1567 | history_filename = concat (current_directory, "/.gdb_history", |
1568 | (char *)NULL); | |
a0b3c4fd | 1569 | #endif |
c5aa993b | 1570 | } |
9e0b60a8 JM |
1571 | read_history (history_filename); |
1572 | } | |
1573 | ||
920d2a44 AC |
1574 | static void |
1575 | show_new_async_prompt (struct ui_file *file, int from_tty, | |
1576 | struct cmd_list_element *c, const char *value) | |
1577 | { | |
1578 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1579 | } | |
1580 | ||
1581 | static void | |
1582 | show_async_command_editing_p (struct ui_file *file, int from_tty, | |
1583 | struct cmd_list_element *c, const char *value) | |
1584 | { | |
3e43a32a MS |
1585 | fprintf_filtered (file, _("Editing of command lines as " |
1586 | "they are typed is %s.\n"), | |
920d2a44 AC |
1587 | value); |
1588 | } | |
1589 | ||
1590 | static void | |
1591 | show_annotation_level (struct ui_file *file, int from_tty, | |
1592 | struct cmd_list_element *c, const char *value) | |
1593 | { | |
1594 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1595 | } | |
1596 | ||
1597 | static void | |
1598 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1599 | struct cmd_list_element *c, const char *value) | |
1600 | { | |
3e43a32a MS |
1601 | fprintf_filtered (file, _("Notification of completion for " |
1602 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1603 | value); |
1604 | } | |
9e0b60a8 | 1605 | static void |
fba45db2 | 1606 | init_main (void) |
9e0b60a8 | 1607 | { |
362646f5 AC |
1608 | /* initialize the prompt stack to a simple "(gdb) " prompt or to |
1609 | whatever the DEFAULT_PROMPT is. */ | |
1610 | the_prompts.top = 0; | |
1611 | PREFIX (0) = ""; | |
95298e72 | 1612 | set_prompt (DEFAULT_PROMPT, 0); |
362646f5 AC |
1613 | SUFFIX (0) = ""; |
1614 | /* Set things up for annotation_level > 1, if the user ever decides | |
1615 | to use it. */ | |
1616 | async_annotation_suffix = "prompt"; | |
362646f5 AC |
1617 | |
1618 | /* If gdb was started with --annotate=2, this is equivalent to the | |
1619 | user entering the command 'set annotate 2' at the gdb prompt, so | |
1620 | we need to do extra processing. */ | |
1621 | if (annotation_level > 1) | |
1622 | set_async_annotation_level (NULL, 0, NULL); | |
9e0b60a8 JM |
1623 | |
1624 | /* Set the important stuff up for command editing. */ | |
1625 | command_editing_p = 1; | |
9e0b60a8 JM |
1626 | history_expansion_p = 0; |
1627 | write_history_p = 0; | |
1628 | ||
1629 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1630 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 1631 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 1632 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 1633 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
9e0b60a8 | 1634 | rl_readline_name = "gdb"; |
7cb3ec5e | 1635 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 1636 | |
467d8519 TT |
1637 | /* The name for this defun comes from Bash, where it originated. |
1638 | 15 is Control-o, the same binding this function has in Bash. */ | |
1639 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
1640 | ||
4d28ad1e | 1641 | add_setshow_string_cmd ("prompt", class_support, |
3e43a32a MS |
1642 | &new_async_prompt, |
1643 | _("Set gdb's prompt"), | |
1644 | _("Show gdb's prompt"), | |
1645 | NULL, set_async_prompt, | |
920d2a44 | 1646 | show_new_async_prompt, |
4d28ad1e | 1647 | &setlist, &showlist); |
9e0b60a8 | 1648 | |
1bedd215 | 1649 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
1650 | Don't repeat this command.\nPrimarily \ |
1651 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 1652 | hitting return.")); |
9e0b60a8 | 1653 | |
5bf193a2 AC |
1654 | add_setshow_boolean_cmd ("editing", class_support, |
1655 | &async_command_editing_p, _("\ | |
1656 | Set editing of command lines as they are typed."), _("\ | |
1657 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
1658 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
1659 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 AC |
1660 | EMACS-like or VI-like commands like control-P or ESC."), |
1661 | set_async_editing_command, | |
920d2a44 | 1662 | show_async_command_editing_p, |
5bf193a2 AC |
1663 | &setlist, &showlist); |
1664 | ||
1665 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
1666 | Set saving of the history record on exit."), _("\ | |
1667 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 1668 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
1669 | Without an argument, saving is enabled."), |
1670 | NULL, | |
920d2a44 | 1671 | show_write_history_p, |
5bf193a2 | 1672 | &sethistlist, &showhistlist); |
9e0b60a8 | 1673 | |
4d28ad1e AC |
1674 | add_setshow_integer_cmd ("size", no_class, &history_size, _("\ |
1675 | Set the size of the command history,"), _("\ | |
1676 | Show the size of the command history,"), _("\ | |
1677 | ie. the number of previous commands to keep a record of."), | |
1678 | set_history_size_command, | |
920d2a44 | 1679 | show_history_size, |
4d28ad1e AC |
1680 | &sethistlist, &showhistlist); |
1681 | ||
1682 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ | |
1683 | Set the filename in which to record the command history"), _("\ | |
1684 | Show the filename in which to record the command history"), _("\ | |
1685 | (the list of previous commands of which a record is kept)."), | |
1686 | NULL, | |
920d2a44 | 1687 | show_history_filename, |
4d28ad1e | 1688 | &sethistlist, &showhistlist); |
9e0b60a8 | 1689 | |
5bf193a2 AC |
1690 | add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\ |
1691 | Set whether to confirm potentially dangerous operations."), _("\ | |
1692 | Show whether to confirm potentially dangerous operations."), NULL, | |
1693 | NULL, | |
920d2a44 | 1694 | show_caution, |
5bf193a2 | 1695 | &setlist, &showlist); |
9e0b60a8 | 1696 | |
85c07804 AC |
1697 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
1698 | Set annotation_level."), _("\ | |
1699 | Show annotation_level."), _("\ | |
9e0b60a8 | 1700 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 AC |
1701 | 2 == output annotated suitably for use by programs that control GDB."), |
1702 | set_async_annotation_level, | |
920d2a44 | 1703 | show_annotation_level, |
85c07804 | 1704 | &setlist, &showlist); |
362646f5 | 1705 | |
5bf193a2 AC |
1706 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
1707 | &exec_done_display_p, _("\ | |
1708 | Set notification of completion for asynchronous execution commands."), _("\ | |
1709 | Show notification of completion for asynchronous execution commands."), _("\ | |
1710 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
1711 | NULL, | |
920d2a44 | 1712 | show_exec_done_display_p, |
5bf193a2 | 1713 | &setlist, &showlist); |
b14b1491 TT |
1714 | |
1715 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
1716 | &gdb_datadir, _("Set GDB's data directory."), | |
1717 | _("Show GDB's data directory."), | |
1718 | _("\ | |
1719 | When set, GDB uses the specified path to search for data files."), | |
1720 | NULL, NULL, | |
1721 | &setlist, | |
1722 | &showlist); | |
9e0b60a8 | 1723 | } |
64cdedad EZ |
1724 | |
1725 | void | |
1726 | gdb_init (char *argv0) | |
1727 | { | |
1728 | if (pre_init_ui_hook) | |
1729 | pre_init_ui_hook (); | |
1730 | ||
371d5dec | 1731 | /* Run the init function of each source file. */ |
64cdedad | 1732 | |
64cdedad EZ |
1733 | #ifdef __MSDOS__ |
1734 | /* Make sure we return to the original directory upon exit, come | |
1735 | what may, since the OS doesn't do that for us. */ | |
1736 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
1737 | #endif | |
1738 | ||
371d5dec MS |
1739 | init_cmd_lists (); /* This needs to be done first. */ |
1740 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
1741 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 DE |
1742 | |
1743 | /* Here is where we call all the _initialize_foo routines. */ | |
64cdedad | 1744 | initialize_all_files (); |
9dea9163 | 1745 | |
6c95b8df PA |
1746 | /* This creates the current_program_space. Do this after all the |
1747 | _initialize_foo routines have had a chance to install their | |
1748 | per-sspace data keys. Also do this before | |
1749 | initialize_current_architecture is called, because it accesses | |
1750 | exec_bfd of the current program space. */ | |
1751 | initialize_progspace (); | |
1752 | initialize_inferiors (); | |
64cdedad EZ |
1753 | initialize_current_architecture (); |
1754 | init_cli_cmds(); | |
371d5dec | 1755 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 1756 | |
0ea3f30e DJ |
1757 | initialize_stdin_serial (); |
1758 | ||
362646f5 | 1759 | async_init_signals (); |
64cdedad | 1760 | |
371d5dec MS |
1761 | /* We need a default language for parsing expressions, so simple |
1762 | things like "set width 0" won't fail if no language is explicitly | |
1763 | set in a config file or implicitly set by reading an executable | |
1764 | during startup. */ | |
64cdedad | 1765 | set_language (language_c); |
371d5dec | 1766 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 1767 | |
c378eb4e | 1768 | /* Allow another UI to initialize. If the UI fails to initialize, |
9a4105ab AC |
1769 | and it wants GDB to revert to the CLI, it should clear |
1770 | deprecated_init_ui_hook. */ | |
1771 | if (deprecated_init_ui_hook) | |
1772 | deprecated_init_ui_hook (argv0); | |
9dea9163 DE |
1773 | |
1774 | #ifdef HAVE_PYTHON | |
371d5dec MS |
1775 | /* Python initialization can require various commands to be |
1776 | installed. For example "info pretty-printer" needs the "info" | |
1777 | prefix to be installed. Keep things simple and just do final | |
1778 | python initialization here. */ | |
9dea9163 DE |
1779 | finish_python_initialization (); |
1780 | #endif | |
64cdedad | 1781 | } |