Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
d9fcf2fb | 2 | Copyright 1986-2000 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "gdbcmd.h" | |
23 | #include "call-cmds.h" | |
24 | #include "symtab.h" | |
25 | #include "inferior.h" | |
26 | #include "signals.h" | |
27 | #include "target.h" | |
28 | #include "breakpoint.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "expression.h" | |
31 | #include "value.h" | |
32 | #include "language.h" | |
c5aa993b | 33 | #include "terminal.h" /* For job_control. */ |
c906108c | 34 | #include "annotate.h" |
c5f0f3d0 | 35 | #include "completer.h" |
c906108c | 36 | #include "top.h" |
d4f3574e | 37 | #include "version.h" |
c906108c SS |
38 | |
39 | /* readline include files */ | |
40 | #include <readline/readline.h> | |
41 | #include <readline/history.h> | |
42 | ||
43 | /* readline defines this. */ | |
44 | #undef savestring | |
45 | ||
46 | #include <sys/types.h> | |
c906108c | 47 | |
c4093a6a | 48 | #include <setjmp.h> |
2acceee2 | 49 | |
c2c6d25f | 50 | #include "event-top.h" |
c906108c SS |
51 | #include "gdb_string.h" |
52 | #include "gdb_stat.h" | |
53 | #include <ctype.h> | |
8b93c638 JM |
54 | #ifdef UI_OUT |
55 | #include "ui-out.h" | |
56 | #include "cli-out.h" | |
57 | #endif | |
c906108c | 58 | |
d318976c | 59 | /* From completer.c */ |
c906108c | 60 | |
d318976c | 61 | extern int is_complete_command (void (*func) (char *args, int from_tty)); |
c906108c | 62 | |
d318976c | 63 | /* From cli/cli-cmds.c */ |
c906108c | 64 | |
d318976c | 65 | extern void init_cmd_lists (void); |
c906108c | 66 | |
d318976c | 67 | extern void init_cli_cmds (void); |
c906108c | 68 | |
d318976c | 69 | extern void execute_user_command (struct cmd_list_element *c, char *args); |
c906108c | 70 | |
d318976c FN |
71 | /* From cli/cli-setshow.c */ |
72 | ||
73 | extern void do_setshow_command (char *, int, struct cmd_list_element *); | |
c906108c | 74 | |
d318976c | 75 | /* Exported to CLI cli/cli-cmds.c. */ |
c906108c | 76 | |
d318976c | 77 | void set_verbose (char *, int, struct cmd_list_element *); |
c906108c | 78 | |
d318976c | 79 | void show_history (char *, int); |
c906108c | 80 | |
d318976c | 81 | void set_history (char *, int); |
c906108c | 82 | |
d318976c | 83 | void show_commands (char *, int); |
c906108c | 84 | |
d318976c | 85 | void do_restore_instream_cleanup (void *stream); |
c906108c | 86 | |
d318976c | 87 | /* Prototypes for local functions */ |
c906108c | 88 | |
d318976c | 89 | static void dont_repeat_command (char *, int); |
c906108c | 90 | |
d318976c | 91 | static void init_signals (void); |
c906108c | 92 | |
d318976c FN |
93 | #ifdef STOP_SIGNAL |
94 | static void stop_sig (int); | |
95 | #endif | |
c906108c | 96 | |
d318976c | 97 | static char *readline_line_completion_function (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void init_main (void); |
c906108c | 100 | |
a14ed312 | 101 | static void float_handler (int); |
c906108c | 102 | |
a14ed312 | 103 | static void init_signals (void); |
c906108c | 104 | |
a14ed312 | 105 | static void set_history_size_command (char *, int, struct cmd_list_element *); |
c906108c | 106 | |
a14ed312 | 107 | static void do_nothing (int); |
c906108c SS |
108 | |
109 | #ifdef SIGHUP | |
392a587b | 110 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
111 | gdb to use the event loop as the default command loop and we merge |
112 | event-top.c into this file, top.c */ | |
a14ed312 | 113 | /* static */ int quit_cover (PTR); |
c906108c | 114 | |
a14ed312 | 115 | static void disconnect (int); |
c906108c SS |
116 | #endif |
117 | ||
104c1213 JM |
118 | /* Default command line prompt. This is overriden in some configs. */ |
119 | ||
120 | #ifndef DEFAULT_PROMPT | |
121 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
122 | #endif |
123 | ||
124 | /* Initialization file name for gdb. This is overridden in some configs. */ | |
125 | ||
126 | #ifndef GDBINIT_FILENAME | |
127 | #define GDBINIT_FILENAME ".gdbinit" | |
128 | #endif | |
129 | char gdbinit[] = GDBINIT_FILENAME; | |
130 | ||
131 | int inhibit_gdbinit = 0; | |
132 | ||
133 | /* If nonzero, and GDB has been configured to be able to use windows, | |
134 | attempt to open them upon startup. */ | |
135 | ||
136 | int use_windows = 1; | |
137 | ||
c906108c SS |
138 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
139 | ||
140 | /* Flag for whether we want all the "from_tty" gubbish printed. */ | |
141 | ||
c5aa993b | 142 | int caution = 1; /* Default is yes, sigh. */ |
c906108c | 143 | |
c906108c SS |
144 | /* stdio stream that command input is being read from. Set to stdin normally. |
145 | Set by source_command to the file we are sourcing. Set to NULL if we are | |
146 | executing a user-defined command or interacting via a GUI. */ | |
147 | ||
148 | FILE *instream; | |
149 | ||
150 | /* Current working directory. */ | |
151 | ||
152 | char *current_directory; | |
153 | ||
154 | /* The directory name is actually stored here (usually). */ | |
155 | char gdb_dirbuf[1024]; | |
156 | ||
157 | /* Function to call before reading a command, if nonzero. | |
158 | The function receives two args: an input stream, | |
159 | and a prompt string. */ | |
160 | ||
507f3c78 | 161 | void (*window_hook) (FILE *, char *); |
c906108c SS |
162 | |
163 | int epoch_interface; | |
164 | int xgdb_verbose; | |
165 | ||
166 | /* gdb prints this when reading a command interactively */ | |
c5aa993b | 167 | static char *gdb_prompt_string; /* the global prompt string */ |
a14ed312 | 168 | extern char *get_prompt (void); /* access function for prompt string */ |
c906108c SS |
169 | |
170 | /* Buffer used for reading command lines, and the size | |
171 | allocated for it so far. */ | |
172 | ||
173 | char *line; | |
174 | int linesize = 100; | |
175 | ||
176 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 177 | affects things like recording into the command history, commands |
c906108c SS |
178 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
179 | whatever) can issue its own commands and also send along commands | |
180 | from the user, and have the user not notice that the user interface | |
181 | is issuing commands too. */ | |
182 | int server_command; | |
183 | ||
184 | /* Baud rate specified for talking to serial target systems. Default | |
185 | is left as -1, so targets can choose their own defaults. */ | |
186 | /* FIXME: This means that "show remotebaud" and gr_files_info can print -1 | |
187 | or (unsigned int)-1. This is a Bad User Interface. */ | |
188 | ||
189 | int baud_rate = -1; | |
190 | ||
191 | /* Timeout limit for response from target. */ | |
192 | ||
ce808e91 AC |
193 | /* The default value has been changed many times over the years. It |
194 | was originally 5 seconds. But that was thought to be a long time | |
195 | to sit and wait, so it was changed to 2 seconds. That was thought | |
196 | to be plenty unless the connection was going through some terminal | |
197 | server or multiplexer or other form of hairy serial connection. | |
198 | ||
199 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
200 | it began being used in other remote-* targets. It appears that the | |
201 | default was changed to 20 seconds at that time, perhaps because the | |
202 | Hitachi E7000 ICE didn't always respond in a timely manner. | |
203 | ||
204 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
205 | 20 seconds is far worse. This demonstrates the difficulty of using | |
206 | a single variable for all protocol timeouts. | |
207 | ||
208 | As remote.c is used much more than remote-e7000.c, it was changed | |
209 | back to 2 seconds in 1999. */ | |
210 | ||
211 | int remote_timeout = 2; | |
c906108c SS |
212 | |
213 | /* Non-zero tells remote* modules to output debugging info. */ | |
214 | ||
215 | int remote_debug = 0; | |
216 | ||
43ff13b4 JM |
217 | /* Non-zero means the target is running. Note: this is different from |
218 | saying that there is an active target and we are stopped at a | |
219 | breakpoint, for instance. This is a real indicator whether the | |
220 | target is off and running, which gdb is doing something else. */ | |
221 | int target_executing = 0; | |
222 | ||
c906108c SS |
223 | /* Level of control structure. */ |
224 | static int control_level; | |
225 | ||
226 | /* Structure for arguments to user defined functions. */ | |
227 | #define MAXUSERARGS 10 | |
228 | struct user_args | |
c5aa993b JM |
229 | { |
230 | struct user_args *next; | |
231 | struct | |
232 | { | |
233 | char *arg; | |
234 | int len; | |
235 | } | |
236 | a[MAXUSERARGS]; | |
237 | int count; | |
238 | } | |
239 | *user_args; | |
c906108c SS |
240 | |
241 | /* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */ | |
242 | ||
243 | #ifndef STOP_SIGNAL | |
244 | #ifdef SIGTSTP | |
245 | #define STOP_SIGNAL SIGTSTP | |
a14ed312 | 246 | static void stop_sig (int); |
c906108c SS |
247 | #endif |
248 | #endif | |
249 | ||
250 | /* Some System V have job control but not sigsetmask(). */ | |
251 | #if !defined (HAVE_SIGSETMASK) | |
252 | #if !defined (USG) | |
253 | #define HAVE_SIGSETMASK 1 | |
254 | #else | |
255 | #define HAVE_SIGSETMASK 0 | |
256 | #endif | |
257 | #endif | |
258 | ||
259 | #if 0 == (HAVE_SIGSETMASK) | |
260 | #define sigsetmask(n) | |
261 | #endif | |
262 | ||
263 | /* Hooks for alternate command interfaces. */ | |
264 | ||
265 | /* Called after most modules have been initialized, but before taking users | |
266 | command file. */ | |
267 | ||
507f3c78 | 268 | void (*init_ui_hook) (char *argv0); |
7a292a7a SS |
269 | |
270 | /* This hook is called from within gdb's many mini-event loops which could | |
271 | steal control from a real user interface's event loop. It returns | |
272 | non-zero if the user is requesting a detach, zero otherwise. */ | |
273 | ||
507f3c78 | 274 | int (*ui_loop_hook) (int); |
c906108c SS |
275 | |
276 | /* Called instead of command_loop at top level. Can be invoked via | |
277 | return_to_top_level. */ | |
278 | ||
507f3c78 | 279 | void (*command_loop_hook) (void); |
c906108c SS |
280 | |
281 | ||
c906108c SS |
282 | /* Called from print_frame_info to list the line we stopped in. */ |
283 | ||
507f3c78 KB |
284 | void (*print_frame_info_listing_hook) (struct symtab * s, int line, |
285 | int stopline, int noerror); | |
c906108c SS |
286 | /* Replaces most of query. */ |
287 | ||
507f3c78 | 288 | int (*query_hook) (const char *, va_list); |
c906108c SS |
289 | |
290 | /* Replaces most of warning. */ | |
291 | ||
507f3c78 | 292 | void (*warning_hook) (const char *, va_list); |
c906108c | 293 | |
c906108c SS |
294 | /* These three functions support getting lines of text from the user. They |
295 | are used in sequence. First readline_begin_hook is called with a text | |
296 | string that might be (for example) a message for the user to type in a | |
297 | sequence of commands to be executed at a breakpoint. If this function | |
298 | calls back to a GUI, it might take this opportunity to pop up a text | |
299 | interaction window with this message. Next, readline_hook is called | |
300 | with a prompt that is emitted prior to collecting the user input. | |
301 | It can be called multiple times. Finally, readline_end_hook is called | |
302 | to notify the GUI that we are done with the interaction window and it | |
303 | can close it. */ | |
304 | ||
507f3c78 KB |
305 | void (*readline_begin_hook) (char *, ...); |
306 | char *(*readline_hook) (char *); | |
307 | void (*readline_end_hook) (void); | |
c906108c SS |
308 | |
309 | /* Called as appropriate to notify the interface of the specified breakpoint | |
310 | conditions. */ | |
311 | ||
507f3c78 KB |
312 | void (*create_breakpoint_hook) (struct breakpoint * bpt); |
313 | void (*delete_breakpoint_hook) (struct breakpoint * bpt); | |
314 | void (*modify_breakpoint_hook) (struct breakpoint * bpt); | |
c906108c | 315 | |
6426a772 JM |
316 | /* Called as appropriate to notify the interface that we have attached |
317 | to or detached from an already running process. */ | |
318 | ||
507f3c78 KB |
319 | void (*attach_hook) (void); |
320 | void (*detach_hook) (void); | |
6426a772 | 321 | |
c906108c SS |
322 | /* Called during long calculations to allow GUI to repair window damage, and to |
323 | check for stop buttons, etc... */ | |
324 | ||
507f3c78 | 325 | void (*interactive_hook) (void); |
c906108c SS |
326 | |
327 | /* Called when the registers have changed, as a hint to a GUI | |
328 | to minimize window update. */ | |
329 | ||
507f3c78 | 330 | void (*registers_changed_hook) (void); |
c906108c SS |
331 | |
332 | /* Tell the GUI someone changed the register REGNO. -1 means | |
333 | that the caller does not know which register changed or | |
c5aa993b | 334 | that several registers have changed (see value_assign). */ |
507f3c78 | 335 | void (*register_changed_hook) (int regno); |
c906108c SS |
336 | |
337 | /* Tell the GUI someone changed LEN bytes of memory at ADDR */ | |
507f3c78 | 338 | void (*memory_changed_hook) (CORE_ADDR addr, int len); |
c906108c SS |
339 | |
340 | /* Called when going to wait for the target. Usually allows the GUI to run | |
341 | while waiting for target events. */ | |
342 | ||
507f3c78 | 343 | int (*target_wait_hook) (int pid, struct target_waitstatus * status); |
c906108c SS |
344 | |
345 | /* Used by UI as a wrapper around command execution. May do various things | |
346 | like enabling/disabling buttons, etc... */ | |
347 | ||
507f3c78 KB |
348 | void (*call_command_hook) (struct cmd_list_element * c, char *cmd, |
349 | int from_tty); | |
c906108c | 350 | |
96baa820 JM |
351 | /* Called after a `set' command has finished. Is only run if the |
352 | `set' command succeeded. */ | |
353 | ||
eb2f494a | 354 | void (*set_hook) (struct cmd_list_element * c); |
96baa820 | 355 | |
c906108c SS |
356 | /* Called when the current thread changes. Argument is thread id. */ |
357 | ||
507f3c78 | 358 | void (*context_hook) (int id); |
c906108c SS |
359 | |
360 | /* Takes control from error (). Typically used to prevent longjmps out of the | |
361 | middle of the GUI. Usually used in conjunction with a catch routine. */ | |
362 | ||
eb2f494a | 363 | NORETURN void (*error_hook) (void) ATTR_NORETURN; |
c906108c | 364 | \f |
c5aa993b | 365 | |
99eeeb0f ND |
366 | /* One should use catch_errors rather than manipulating these |
367 | directly. */ | |
c4093a6a JM |
368 | #if defined(HAVE_SIGSETJMP) |
369 | #define SIGJMP_BUF sigjmp_buf | |
370 | #define SIGSETJMP(buf) sigsetjmp(buf, 1) | |
371 | #define SIGLONGJMP(buf,val) siglongjmp(buf,val) | |
372 | #else | |
373 | #define SIGJMP_BUF jmp_buf | |
374 | #define SIGSETJMP(buf) setjmp(buf) | |
375 | #define SIGLONGJMP(buf,val) longjmp(buf,val) | |
376 | #endif | |
377 | ||
99eeeb0f ND |
378 | /* Where to go for return_to_top_level. */ |
379 | static SIGJMP_BUF *catch_return; | |
c906108c | 380 | |
99eeeb0f | 381 | /* Return for reason REASON to the nearest containing catch_errors(). */ |
c906108c | 382 | |
c2d11a7d | 383 | NORETURN void |
fba45db2 | 384 | return_to_top_level (enum return_reason reason) |
c906108c SS |
385 | { |
386 | quit_flag = 0; | |
387 | immediate_quit = 0; | |
388 | ||
389 | /* Perhaps it would be cleaner to do this via the cleanup chain (not sure | |
390 | I can think of a reason why that is vital, though). */ | |
c5aa993b | 391 | bpstat_clear_actions (stop_bpstat); /* Clear queued breakpoint commands */ |
c906108c SS |
392 | |
393 | disable_current_display (); | |
394 | do_cleanups (ALL_CLEANUPS); | |
c4093a6a | 395 | if (event_loop_p && target_can_async_p () && !target_executing) |
43ff13b4 | 396 | do_exec_cleanups (ALL_CLEANUPS); |
6426a772 JM |
397 | if (event_loop_p && sync_execution) |
398 | do_exec_error_cleanups (ALL_CLEANUPS); | |
c906108c SS |
399 | |
400 | if (annotation_level > 1) | |
401 | switch (reason) | |
402 | { | |
403 | case RETURN_QUIT: | |
404 | annotate_quit (); | |
405 | break; | |
406 | case RETURN_ERROR: | |
407 | annotate_error (); | |
408 | break; | |
409 | } | |
410 | ||
99eeeb0f ND |
411 | /* Jump to the containing catch_errors() call, communicating REASON |
412 | to that call via setjmp's return value. Note that REASON can't | |
413 | be zero, by definition in defs.h. */ | |
414 | ||
eb2f494a | 415 | (NORETURN void) SIGLONGJMP (*catch_return, (int) reason); |
c906108c SS |
416 | } |
417 | ||
418 | /* Call FUNC with arg ARGS, catching any errors. If there is no | |
419 | error, return the value returned by FUNC. If there is an error, | |
420 | print ERRSTRING, print the specific error message, then return | |
421 | zero. | |
422 | ||
423 | Must not be called with immediate_quit in effect (bad things might | |
424 | happen, say we got a signal in the middle of a memcpy to quit_return). | |
425 | This is an OK restriction; with very few exceptions immediate_quit can | |
426 | be replaced by judicious use of QUIT. | |
427 | ||
428 | MASK specifies what to catch; it is normally set to | |
429 | RETURN_MASK_ALL, if for no other reason than that the code which | |
430 | calls catch_errors might not be set up to deal with a quit which | |
431 | isn't caught. But if the code can deal with it, it generally | |
432 | should be RETURN_MASK_ERROR, unless for some reason it is more | |
433 | useful to abort only the portion of the operation inside the | |
434 | catch_errors. Note that quit should return to the command line | |
435 | fairly quickly, even if some further processing is being done. */ | |
436 | ||
11cf8741 JM |
437 | /* MAYBE: cagney/1999-11-05: catch_errors() in conjunction with |
438 | error() et.al. could maintain a set of flags that indicate the the | |
439 | current state of each of the longjmp buffers. This would give the | |
440 | longjmp code the chance to detect a longjmp botch (before it gets | |
441 | to longjmperror()). Prior to 1999-11-05 this wasn't possible as | |
442 | code also randomly used a SET_TOP_LEVEL macro that directly | |
443 | initialize the longjmp buffers. */ | |
444 | ||
e26cc349 | 445 | /* MAYBE: cagney/1999-11-05: Should the catch_errors and cleanups code |
11cf8741 JM |
446 | be consolidated into a single file instead of being distributed |
447 | between utils.c and top.c? */ | |
448 | ||
c906108c | 449 | int |
fba45db2 KB |
450 | catch_errors (catch_errors_ftype *func, PTR args, char *errstring, |
451 | return_mask mask) | |
c906108c | 452 | { |
99eeeb0f ND |
453 | SIGJMP_BUF *saved_catch; |
454 | SIGJMP_BUF catch; | |
c906108c SS |
455 | int val; |
456 | struct cleanup *saved_cleanup_chain; | |
457 | char *saved_error_pre_print; | |
458 | char *saved_quit_pre_print; | |
459 | ||
99eeeb0f ND |
460 | /* Return value from SIGSETJMP(): enum return_reason if error or |
461 | quit caught, 0 otherwise. */ | |
462 | int caught; | |
463 | ||
464 | /* Override error/quit messages during FUNC. */ | |
465 | ||
c906108c SS |
466 | saved_error_pre_print = error_pre_print; |
467 | saved_quit_pre_print = quit_pre_print; | |
468 | ||
469 | if (mask & RETURN_MASK_ERROR) | |
99eeeb0f | 470 | error_pre_print = errstring; |
c906108c | 471 | if (mask & RETURN_MASK_QUIT) |
99eeeb0f ND |
472 | quit_pre_print = errstring; |
473 | ||
474 | /* Prevent error/quit during FUNC from calling cleanups established | |
475 | prior to here. */ | |
476 | ||
477 | saved_cleanup_chain = save_cleanups (); | |
478 | ||
479 | /* Call FUNC, catching error/quit events. */ | |
480 | ||
481 | saved_catch = catch_return; | |
482 | catch_return = &catch; | |
483 | caught = SIGSETJMP (catch); | |
484 | if (!caught) | |
485 | val = (*func) (args); | |
7f7e9482 AC |
486 | else |
487 | val = 0; | |
99eeeb0f ND |
488 | catch_return = saved_catch; |
489 | ||
e26cc349 | 490 | /* FIXME: cagney/1999-11-05: A correct FUNC implementation will |
99eeeb0f | 491 | clean things up (restoring the cleanup chain) to the state they |
e26cc349 | 492 | were just prior to the call. Unfortunately, many FUNC's are not |
99eeeb0f ND |
493 | that well behaved. This could be fixed by adding either a |
494 | do_cleanups call (to cover the problem) or an assertion check to | |
495 | detect bad FUNCs code. */ | |
496 | ||
497 | /* Restore the cleanup chain and error/quit messages to their | |
498 | original states. */ | |
c906108c SS |
499 | |
500 | restore_cleanups (saved_cleanup_chain); | |
501 | ||
c906108c | 502 | if (mask & RETURN_MASK_QUIT) |
99eeeb0f ND |
503 | quit_pre_print = saved_quit_pre_print; |
504 | if (mask & RETURN_MASK_ERROR) | |
505 | error_pre_print = saved_error_pre_print; | |
506 | ||
507 | /* Return normally if no error/quit event occurred. */ | |
508 | ||
509 | if (!caught) | |
510 | return val; | |
511 | ||
512 | /* If the caller didn't request that the event be caught, relay the | |
513 | event to the next containing catch_errors(). */ | |
514 | ||
515 | if (!(mask & RETURN_MASK (caught))) | |
516 | return_to_top_level (caught); | |
517 | ||
518 | /* Tell the caller that an event was caught. | |
519 | ||
520 | FIXME: nsd/2000-02-22: When MASK is RETURN_MASK_ALL, the caller | |
521 | can't tell what type of event occurred. | |
522 | ||
523 | A possible fix is to add a new interface, catch_event(), that | |
524 | returns enum return_reason after catching an error or a quit. | |
525 | ||
526 | When returning normally, i.e. without catching an error or a | |
527 | quit, catch_event() could return RETURN_NORMAL, which would be | |
528 | added to enum return_reason. FUNC would return information | |
529 | exclusively via ARGS. | |
530 | ||
531 | Alternatively, normal catch_event() could return FUNC's return | |
532 | value. The caller would need to be aware of potential overlap | |
533 | with enum return_reason, which could be publicly restricted to | |
534 | negative values to simplify return value processing in FUNC and | |
535 | in the caller. */ | |
536 | ||
537 | return 0; | |
c906108c SS |
538 | } |
539 | ||
11cf8741 JM |
540 | struct captured_command_args |
541 | { | |
542 | catch_command_errors_ftype *command; | |
543 | char *arg; | |
544 | int from_tty; | |
545 | }; | |
546 | ||
547 | static int | |
548 | do_captured_command (void *data) | |
549 | { | |
550 | struct captured_command_args *context = data; | |
551 | context->command (context->arg, context->from_tty); | |
552 | /* FIXME: cagney/1999-11-07: Technically this do_cleanups() call | |
553 | isn't needed. Instead an assertion check could be made that | |
554 | simply confirmed that the called function correctly cleaned up | |
e26cc349 | 555 | after itself. Unfortunately, old code (prior to 1999-11-04) in |
11cf8741 JM |
556 | main.c was calling SET_TOP_LEVEL(), calling the command function, |
557 | and then *always* calling do_cleanups(). For the moment we | |
558 | remain ``bug compatible'' with that old code.. */ | |
559 | do_cleanups (ALL_CLEANUPS); | |
560 | return 1; | |
561 | } | |
562 | ||
563 | int | |
eb2f494a | 564 | catch_command_errors (catch_command_errors_ftype * command, |
11cf8741 JM |
565 | char *arg, int from_tty, return_mask mask) |
566 | { | |
567 | struct captured_command_args args; | |
568 | args.command = command; | |
569 | args.arg = arg; | |
570 | args.from_tty = from_tty; | |
571 | return catch_errors (do_captured_command, &args, "", mask); | |
572 | } | |
573 | ||
574 | ||
c906108c SS |
575 | /* Handler for SIGHUP. */ |
576 | ||
577 | #ifdef SIGHUP | |
578 | static void | |
fba45db2 | 579 | disconnect (int signo) |
c906108c SS |
580 | { |
581 | catch_errors (quit_cover, NULL, | |
c5aa993b | 582 | "Could not kill the program being debugged", RETURN_MASK_ALL); |
c906108c SS |
583 | signal (SIGHUP, SIG_DFL); |
584 | kill (getpid (), SIGHUP); | |
585 | } | |
586 | ||
587 | /* Just a little helper function for disconnect(). */ | |
588 | ||
392a587b | 589 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 SS |
590 | gdb to use the event loop as the default command loop and we merge |
591 | event-top.c into this file, top.c */ | |
592 | /* static */ int | |
fba45db2 | 593 | quit_cover (PTR s) |
c906108c | 594 | { |
c5aa993b JM |
595 | caution = 0; /* Throw caution to the wind -- we're exiting. |
596 | This prevents asking the user dumb questions. */ | |
597 | quit_command ((char *) 0, 0); | |
c906108c SS |
598 | return 0; |
599 | } | |
600 | #endif /* defined SIGHUP */ | |
601 | \f | |
602 | /* Line number we are currently in in a file which is being sourced. */ | |
392a587b | 603 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
604 | gdb to use the event loop as the default command loop and we merge |
605 | event-top.c into this file, top.c */ | |
606 | /* static */ int source_line_number; | |
c906108c SS |
607 | |
608 | /* Name of the file we are sourcing. */ | |
392a587b | 609 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
610 | gdb to use the event loop as the default command loop and we merge |
611 | event-top.c into this file, top.c */ | |
612 | /* static */ char *source_file_name; | |
c906108c SS |
613 | |
614 | /* Buffer containing the error_pre_print used by the source stuff. | |
615 | Malloc'd. */ | |
392a587b | 616 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
617 | gdb to use the event loop as the default command loop and we merge |
618 | event-top.c into this file, top.c */ | |
619 | /* static */ char *source_error; | |
c906108c SS |
620 | static int source_error_allocated; |
621 | ||
622 | /* Something to glom on to the start of error_pre_print if source_file_name | |
623 | is set. */ | |
392a587b | 624 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 SS |
625 | gdb to use the event loop as the default command loop and we merge |
626 | event-top.c into this file, top.c */ | |
627 | /* static */ char *source_pre_error; | |
c906108c SS |
628 | |
629 | /* Clean up on error during a "source" command (or execution of a | |
630 | user-defined command). */ | |
631 | ||
d318976c | 632 | void |
e41a3b1a | 633 | do_restore_instream_cleanup (void *stream) |
c906108c SS |
634 | { |
635 | /* Restore the previous input stream. */ | |
636 | instream = stream; | |
637 | } | |
638 | ||
639 | /* Read commands from STREAM. */ | |
640 | void | |
fba45db2 | 641 | read_command_file (FILE *stream) |
c906108c SS |
642 | { |
643 | struct cleanup *cleanups; | |
644 | ||
e41a3b1a | 645 | cleanups = make_cleanup (do_restore_instream_cleanup, instream); |
c906108c | 646 | instream = stream; |
c5aa993b | 647 | command_loop (); |
c906108c SS |
648 | do_cleanups (cleanups); |
649 | } | |
650 | \f | |
a14ed312 | 651 | extern void init_proc (void); |
c906108c | 652 | |
507f3c78 | 653 | void (*pre_init_ui_hook) (void); |
c906108c | 654 | |
e41a3b1a AC |
655 | #ifdef __MSDOS__ |
656 | void | |
657 | do_chdir_cleanup (void *old_dir) | |
658 | { | |
659 | chdir (old_dir); | |
b8c9b27d | 660 | xfree (old_dir); |
e41a3b1a AC |
661 | } |
662 | #endif | |
663 | ||
c906108c | 664 | void |
fba45db2 | 665 | gdb_init (char *argv0) |
c906108c SS |
666 | { |
667 | if (pre_init_ui_hook) | |
668 | pre_init_ui_hook (); | |
669 | ||
670 | /* Run the init function of each source file */ | |
671 | ||
672 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
673 | current_directory = gdb_dirbuf; | |
674 | ||
a0b3c4fd JM |
675 | #ifdef __MSDOS__ |
676 | /* Make sure we return to the original directory upon exit, come | |
677 | what may, since the OS doesn't do that for us. */ | |
e41a3b1a | 678 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); |
a0b3c4fd JM |
679 | #endif |
680 | ||
c5aa993b JM |
681 | init_cmd_lists (); /* This needs to be done first */ |
682 | initialize_targets (); /* Setup target_terminal macros for utils.c */ | |
683 | initialize_utils (); /* Make errors and warnings possible */ | |
c906108c | 684 | initialize_all_files (); |
e514a9d6 | 685 | initialize_current_architecture (); |
d318976c | 686 | init_cli_cmds(); |
c5aa993b | 687 | init_main (); /* But that omits this file! Do it now */ |
cd0fc7c3 SS |
688 | |
689 | /* The signal handling mechanism is different depending whether or | |
690 | not the async version is run. NOTE: in the future we plan to make | |
691 | the event loop be the default engine of gdb, and this difference | |
692 | will disappear. */ | |
6426a772 | 693 | if (event_loop_p) |
cd0fc7c3 SS |
694 | async_init_signals (); |
695 | else | |
c5aa993b | 696 | init_signals (); |
c906108c | 697 | |
c906108c SS |
698 | /* We need a default language for parsing expressions, so simple things like |
699 | "set width 0" won't fail if no language is explicitly set in a config file | |
700 | or implicitly set by reading an executable during startup. */ | |
701 | set_language (language_c); | |
c5aa993b | 702 | expected_language = current_language; /* don't warn about the change. */ |
c906108c | 703 | |
8b93c638 JM |
704 | #ifdef UI_OUT |
705 | /* Install the default UI */ | |
706 | uiout = cli_out_new (gdb_stdout); | |
707 | #endif | |
fb40c209 AC |
708 | |
709 | #ifdef UI_OUT | |
710 | /* All the interpreters should have had a look at things by now. | |
711 | Initialize the selected interpreter. */ | |
712 | if (interpreter_p && !init_ui_hook) | |
713 | { | |
714 | fprintf_unfiltered (gdb_stderr, "Interpreter `%s' unrecognized.\n", | |
715 | interpreter_p); | |
716 | exit (1); | |
717 | } | |
718 | #endif | |
8b93c638 | 719 | |
c906108c SS |
720 | if (init_ui_hook) |
721 | init_ui_hook (argv0); | |
722 | } | |
723 | ||
d318976c FN |
724 | /* Execute the line P as a command. |
725 | Pass FROM_TTY as second argument to the defining function. */ | |
c906108c | 726 | |
d318976c FN |
727 | void |
728 | execute_command (char *p, int from_tty) | |
c906108c | 729 | { |
d318976c FN |
730 | register struct cmd_list_element *c; |
731 | register enum language flang; | |
732 | static int warned = 0; | |
733 | char *line; | |
734 | /* FIXME: These should really be in an appropriate header file */ | |
735 | extern void serial_log_command (const char *); | |
c906108c | 736 | |
d318976c | 737 | free_all_values (); |
c906108c | 738 | |
d318976c FN |
739 | /* Force cleanup of any alloca areas if using C alloca instead of |
740 | a builtin alloca. */ | |
741 | alloca (0); | |
c906108c | 742 | |
d318976c FN |
743 | /* This can happen when command_line_input hits end of file. */ |
744 | if (p == NULL) | |
745 | return; | |
c906108c | 746 | |
d318976c | 747 | serial_log_command (p); |
8b93c638 | 748 | |
d318976c FN |
749 | while (*p == ' ' || *p == '\t') |
750 | p++; | |
751 | if (*p) | |
8b93c638 | 752 | { |
d318976c FN |
753 | char *arg; |
754 | line = p; | |
8b93c638 | 755 | |
d318976c | 756 | c = lookup_cmd (&p, cmdlist, "", 0, 1); |
8b93c638 | 757 | |
d318976c FN |
758 | /* If the target is running, we allow only a limited set of |
759 | commands. */ | |
760 | if (event_loop_p && target_can_async_p () && target_executing) | |
761 | if (!strcmp (c->name, "help") | |
762 | && !strcmp (c->name, "pwd") | |
763 | && !strcmp (c->name, "show") | |
764 | && !strcmp (c->name, "stop")) | |
765 | error ("Cannot execute this command while the target is running."); | |
8b93c638 | 766 | |
d318976c FN |
767 | /* Pass null arg rather than an empty one. */ |
768 | arg = *p ? p : 0; | |
8b93c638 | 769 | |
d318976c FN |
770 | /* Clear off trailing whitespace, except for set and complete command. */ |
771 | if (arg | |
772 | && c->type != set_cmd | |
773 | && !is_complete_command (c->function.cfunc)) | |
8b93c638 | 774 | { |
d318976c FN |
775 | p = arg + strlen (arg) - 1; |
776 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
777 | p--; | |
778 | *(p + 1) = '\0'; | |
8b93c638 JM |
779 | } |
780 | ||
d318976c FN |
781 | /* If this command has been pre-hooked, run the hook first. */ |
782 | if ((c->hook_pre) && (!c->hook_in)) | |
783 | { | |
784 | c->hook_in = 1; /* Prevent recursive hooking */ | |
785 | execute_user_command (c->hook_pre, (char *) 0); | |
786 | c->hook_in = 0; /* Allow hook to work again once it is complete */ | |
787 | } | |
c906108c | 788 | |
d318976c FN |
789 | if (c->flags & DEPRECATED_WARN_USER) |
790 | deprecated_cmd_warning (&line); | |
c906108c | 791 | |
d318976c FN |
792 | if (c->class == class_user) |
793 | execute_user_command (c, arg); | |
794 | else if (c->type == set_cmd || c->type == show_cmd) | |
795 | do_setshow_command (arg, from_tty & caution, c); | |
796 | else if (c->function.cfunc == NO_FUNCTION) | |
797 | error ("That is not a command, just a help topic."); | |
798 | else if (call_command_hook) | |
799 | call_command_hook (c, arg, from_tty & caution); | |
800 | else | |
801 | (*c->function.cfunc) (arg, from_tty & caution); | |
802 | ||
803 | /* If this command has been post-hooked, run the hook last. */ | |
804 | if ((c->hook_post) && (!c->hook_in)) | |
805 | { | |
806 | c->hook_in = 1; /* Prevent recursive hooking */ | |
807 | execute_user_command (c->hook_post, (char *) 0); | |
808 | c->hook_in = 0; /* allow hook to work again once it is complete */ | |
809 | } | |
c906108c | 810 | |
c906108c SS |
811 | } |
812 | ||
d318976c FN |
813 | /* Tell the user if the language has changed (except first time). */ |
814 | if (current_language != expected_language) | |
c906108c | 815 | { |
d318976c | 816 | if (language_mode == language_mode_auto) |
c906108c | 817 | { |
d318976c | 818 | language_info (1); /* Print what changed. */ |
c906108c | 819 | } |
d318976c | 820 | warned = 0; |
c906108c SS |
821 | } |
822 | ||
d318976c FN |
823 | /* Warn the user if the working language does not match the |
824 | language of the current frame. Only warn the user if we are | |
825 | actually running the program, i.e. there is a stack. */ | |
826 | /* FIXME: This should be cacheing the frame and only running when | |
827 | the frame changes. */ | |
828 | ||
829 | if (target_has_stack) | |
c906108c | 830 | { |
d318976c FN |
831 | flang = get_frame_language (); |
832 | if (!warned | |
833 | && flang != language_unknown | |
834 | && flang != current_language->la_language) | |
c906108c | 835 | { |
d318976c FN |
836 | printf_filtered ("%s\n", lang_frame_mismatch_warn); |
837 | warned = 1; | |
c906108c | 838 | } |
c906108c SS |
839 | } |
840 | } | |
841 | ||
d318976c FN |
842 | /* Read commands from `instream' and execute them |
843 | until end of file or error reading instream. */ | |
c906108c | 844 | |
d318976c FN |
845 | void |
846 | command_loop (void) | |
c906108c | 847 | { |
d318976c FN |
848 | struct cleanup *old_chain; |
849 | char *command; | |
850 | int stdin_is_tty = ISATTY (stdin); | |
851 | long time_at_cmd_start; | |
852 | #ifdef HAVE_SBRK | |
853 | long space_at_cmd_start = 0; | |
854 | #endif | |
855 | extern int display_time; | |
856 | extern int display_space; | |
c5aa993b | 857 | |
d318976c FN |
858 | while (instream && !feof (instream)) |
859 | { | |
860 | #if defined(TUI) | |
861 | extern int insert_mode; | |
862 | #endif | |
863 | if (window_hook && instream == stdin) | |
864 | (*window_hook) (instream, get_prompt ()); | |
c906108c | 865 | |
d318976c FN |
866 | quit_flag = 0; |
867 | if (instream == stdin && stdin_is_tty) | |
868 | reinitialize_more_filter (); | |
869 | old_chain = make_cleanup (null_cleanup, 0); | |
c906108c | 870 | |
d318976c FN |
871 | #if defined(TUI) |
872 | /* A bit of paranoia: I want to make sure the "insert_mode" global | |
873 | * is clear except when it is being used for command-line editing | |
874 | * (see tuiIO.c, utils.c); otherwise normal output will | |
875 | * get messed up in the TUI. So clear it before/after | |
876 | * the command-line-input call. - RT | |
877 | */ | |
878 | insert_mode = 0; | |
879 | #endif | |
880 | /* Get a command-line. This calls the readline package. */ | |
881 | command = command_line_input (instream == stdin ? | |
882 | get_prompt () : (char *) NULL, | |
883 | instream == stdin, "prompt"); | |
884 | #if defined(TUI) | |
885 | insert_mode = 0; | |
886 | #endif | |
887 | if (command == 0) | |
888 | return; | |
c906108c | 889 | |
d318976c | 890 | time_at_cmd_start = get_run_time (); |
c906108c | 891 | |
d318976c | 892 | if (display_space) |
9e0b60a8 | 893 | { |
d318976c FN |
894 | #ifdef HAVE_SBRK |
895 | extern char **environ; | |
896 | char *lim = (char *) sbrk (0); | |
9e0b60a8 | 897 | |
d318976c | 898 | space_at_cmd_start = (long) (lim - (char *) &environ); |
9e0b60a8 | 899 | #endif |
d318976c | 900 | } |
9e0b60a8 | 901 | |
d318976c FN |
902 | execute_command (command, instream == stdin); |
903 | /* Do any commands attached to breakpoint we stopped at. */ | |
904 | bpstat_do_actions (&stop_bpstat); | |
905 | do_cleanups (old_chain); | |
9e0b60a8 | 906 | |
d318976c | 907 | if (display_time) |
9e0b60a8 | 908 | { |
d318976c | 909 | long cmd_time = get_run_time () - time_at_cmd_start; |
9e0b60a8 | 910 | |
d318976c FN |
911 | printf_unfiltered ("Command execution time: %ld.%06ld\n", |
912 | cmd_time / 1000000, cmd_time % 1000000); | |
9e0b60a8 | 913 | } |
9e0b60a8 | 914 | |
d318976c | 915 | if (display_space) |
9e0b60a8 | 916 | { |
d318976c FN |
917 | #ifdef HAVE_SBRK |
918 | extern char **environ; | |
919 | char *lim = (char *) sbrk (0); | |
920 | long space_now = lim - (char *) &environ; | |
921 | long space_diff = space_now - space_at_cmd_start; | |
922 | ||
923 | printf_unfiltered ("Space used: %ld (%c%ld for this command)\n", | |
924 | space_now, | |
925 | (space_diff >= 0 ? '+' : '-'), | |
926 | space_diff); | |
927 | #endif | |
9e0b60a8 | 928 | } |
9e0b60a8 | 929 | } |
9e0b60a8 | 930 | } |
9e0b60a8 | 931 | |
d318976c FN |
932 | /* Read commands from `instream' and execute them until end of file or |
933 | error reading instream. This command loop doesnt care about any | |
934 | such things as displaying time and space usage. If the user asks | |
935 | for those, they won't work. */ | |
936 | void | |
937 | simplified_command_loop (char *(*read_input_func) (char *), | |
938 | void (*execute_command_func) (char *, int)) | |
9e0b60a8 | 939 | { |
d318976c FN |
940 | struct cleanup *old_chain; |
941 | char *command; | |
942 | int stdin_is_tty = ISATTY (stdin); | |
9e0b60a8 | 943 | |
d318976c | 944 | while (instream && !feof (instream)) |
9e0b60a8 | 945 | { |
d318976c FN |
946 | quit_flag = 0; |
947 | if (instream == stdin && stdin_is_tty) | |
948 | reinitialize_more_filter (); | |
949 | old_chain = make_cleanup (null_cleanup, 0); | |
950 | ||
951 | /* Get a command-line. */ | |
952 | command = (*read_input_func) (instream == stdin ? | |
953 | get_prompt () : (char *) NULL); | |
9e0b60a8 | 954 | |
d318976c FN |
955 | if (command == 0) |
956 | return; | |
9e0b60a8 | 957 | |
d318976c | 958 | (*execute_command_func) (command, instream == stdin); |
9e0b60a8 | 959 | |
d318976c FN |
960 | /* Do any commands attached to breakpoint we stopped at. */ |
961 | bpstat_do_actions (&stop_bpstat); | |
9e0b60a8 | 962 | |
d318976c | 963 | do_cleanups (old_chain); |
c5aa993b | 964 | } |
9e0b60a8 | 965 | } |
d318976c FN |
966 | \f |
967 | /* Commands call this if they do not want to be repeated by null lines. */ | |
9e0b60a8 | 968 | |
d318976c FN |
969 | void |
970 | dont_repeat (void) | |
9e0b60a8 | 971 | { |
d318976c FN |
972 | if (server_command) |
973 | return; | |
9e0b60a8 | 974 | |
d318976c FN |
975 | /* If we aren't reading from standard input, we are saving the last |
976 | thing read from stdin in line and don't want to delete it. Null lines | |
977 | won't repeat here in any case. */ | |
978 | if (instream == stdin) | |
979 | *line = 0; | |
9e0b60a8 | 980 | } |
d318976c FN |
981 | \f |
982 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 983 | |
d318976c FN |
984 | It prints PROMPT_ARG once at the start. |
985 | Action is compatible with "readline", e.g. space for the result is | |
986 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 987 | |
d318976c FN |
988 | A NULL return means end of file. */ |
989 | char * | |
990 | gdb_readline (char *prompt_arg) | |
9e0b60a8 | 991 | { |
d318976c FN |
992 | int c; |
993 | char *result; | |
994 | int input_index = 0; | |
995 | int result_size = 80; | |
9e0b60a8 | 996 | |
d318976c | 997 | if (prompt_arg) |
9e0b60a8 | 998 | { |
d318976c FN |
999 | /* Don't use a _filtered function here. It causes the assumed |
1000 | character position to be off, since the newline we read from | |
1001 | the user is not accounted for. */ | |
1002 | fputs_unfiltered (prompt_arg, gdb_stdout); | |
1003 | #ifdef MPW | |
1004 | /* Move to a new line so the entered line doesn't have a prompt | |
1005 | on the front of it. */ | |
1006 | fputs_unfiltered ("\n", gdb_stdout); | |
1007 | #endif /* MPW */ | |
9e0b60a8 JM |
1008 | gdb_flush (gdb_stdout); |
1009 | } | |
1010 | ||
d318976c | 1011 | result = (char *) xmalloc (result_size); |
9e0b60a8 JM |
1012 | |
1013 | while (1) | |
1014 | { | |
d318976c FN |
1015 | /* Read from stdin if we are executing a user defined command. |
1016 | This is the right thing for prompt_for_continue, at least. */ | |
1017 | c = fgetc (instream ? instream : stdin); | |
9e0b60a8 | 1018 | |
d318976c | 1019 | if (c == EOF) |
9e0b60a8 | 1020 | { |
d318976c FN |
1021 | if (input_index > 0) |
1022 | /* The last line does not end with a newline. Return it, and | |
1023 | if we are called again fgetc will still return EOF and | |
1024 | we'll return NULL then. */ | |
9e0b60a8 | 1025 | break; |
b8c9b27d | 1026 | xfree (result); |
d318976c | 1027 | return NULL; |
9e0b60a8 | 1028 | } |
c5aa993b | 1029 | |
d318976c FN |
1030 | if (c == '\n') |
1031 | #ifndef CRLF_SOURCE_FILES | |
1032 | break; | |
1033 | #else | |
9e0b60a8 | 1034 | { |
d318976c FN |
1035 | if (input_index > 0 && result[input_index - 1] == '\r') |
1036 | input_index--; | |
1037 | break; | |
9e0b60a8 | 1038 | } |
d318976c | 1039 | #endif |
9e0b60a8 | 1040 | |
d318976c FN |
1041 | result[input_index++] = c; |
1042 | while (input_index >= result_size) | |
9e0b60a8 | 1043 | { |
d318976c FN |
1044 | result_size *= 2; |
1045 | result = (char *) xrealloc (result, result_size); | |
9e0b60a8 | 1046 | } |
9e0b60a8 JM |
1047 | } |
1048 | ||
d318976c FN |
1049 | result[input_index++] = '\0'; |
1050 | return result; | |
9e0b60a8 JM |
1051 | } |
1052 | ||
d318976c FN |
1053 | /* Variables which control command line editing and history |
1054 | substitution. These variables are given default values at the end | |
1055 | of this file. */ | |
1056 | static int command_editing_p; | |
1057 | /* NOTE 1999-04-29: This variable will be static again, once we modify | |
1058 | gdb to use the event loop as the default command loop and we merge | |
1059 | event-top.c into this file, top.c */ | |
1060 | /* static */ int history_expansion_p; | |
1061 | static int write_history_p; | |
1062 | static int history_size; | |
1063 | static char *history_filename; | |
9e0b60a8 | 1064 | |
d318976c | 1065 | /* Functions that are used as part of the fancy command line editing. */ |
e41a3b1a | 1066 | |
d318976c FN |
1067 | /* This can be used for functions which don't want to complete on symbols |
1068 | but don't want to complete on anything else either. */ | |
1069 | /* ARGSUSED */ | |
1070 | char ** | |
1071 | noop_completer (char *text, char *prefix) | |
e41a3b1a | 1072 | { |
d318976c | 1073 | return NULL; |
e41a3b1a AC |
1074 | } |
1075 | ||
d318976c FN |
1076 | /* Line completion interface function for readline. */ |
1077 | ||
1078 | static char * | |
1079 | readline_line_completion_function (char *text, int matches) | |
e41a3b1a | 1080 | { |
d318976c | 1081 | return line_completion_function (text, matches, rl_line_buffer, rl_point); |
e41a3b1a | 1082 | } |
9e0b60a8 | 1083 | \f |
d318976c FN |
1084 | #ifdef STOP_SIGNAL |
1085 | static void | |
1086 | stop_sig (int signo) | |
9e0b60a8 | 1087 | { |
d318976c FN |
1088 | #if STOP_SIGNAL == SIGTSTP |
1089 | signal (SIGTSTP, SIG_DFL); | |
1090 | sigsetmask (0); | |
1091 | kill (getpid (), SIGTSTP); | |
1092 | signal (SIGTSTP, stop_sig); | |
1093 | #else | |
1094 | signal (STOP_SIGNAL, stop_sig); | |
1095 | #endif | |
1096 | printf_unfiltered ("%s", get_prompt ()); | |
1097 | gdb_flush (gdb_stdout); | |
9e0b60a8 | 1098 | |
d318976c FN |
1099 | /* Forget about any previous command -- null line now will do nothing. */ |
1100 | dont_repeat (); | |
9e0b60a8 | 1101 | } |
d318976c | 1102 | #endif /* STOP_SIGNAL */ |
9e0b60a8 | 1103 | |
d318976c | 1104 | /* Initialize signal handlers. */ |
9e0b60a8 | 1105 | static void |
d318976c | 1106 | do_nothing (int signo) |
9e0b60a8 | 1107 | { |
d318976c FN |
1108 | /* Under System V the default disposition of a signal is reinstated after |
1109 | the signal is caught and delivered to an application process. On such | |
1110 | systems one must restore the replacement signal handler if one wishes | |
1111 | to continue handling the signal in one's program. On BSD systems this | |
1112 | is not needed but it is harmless, and it simplifies the code to just do | |
1113 | it unconditionally. */ | |
1114 | signal (signo, do_nothing); | |
9e0b60a8 JM |
1115 | } |
1116 | ||
9e0b60a8 | 1117 | static void |
d318976c | 1118 | init_signals (void) |
9e0b60a8 | 1119 | { |
d318976c | 1120 | signal (SIGINT, request_quit); |
9e0b60a8 | 1121 | |
d318976c FN |
1122 | /* If SIGTRAP was set to SIG_IGN, then the SIG_IGN will get passed |
1123 | to the inferior and breakpoints will be ignored. */ | |
1124 | #ifdef SIGTRAP | |
1125 | signal (SIGTRAP, SIG_DFL); | |
1126 | #endif | |
9e0b60a8 | 1127 | |
d318976c FN |
1128 | /* If we initialize SIGQUIT to SIG_IGN, then the SIG_IGN will get |
1129 | passed to the inferior, which we don't want. It would be | |
1130 | possible to do a "signal (SIGQUIT, SIG_DFL)" after we fork, but | |
1131 | on BSD4.3 systems using vfork, that can affect the | |
1132 | GDB process as well as the inferior (the signal handling tables | |
1133 | might be in memory, shared between the two). Since we establish | |
1134 | a handler for SIGQUIT, when we call exec it will set the signal | |
1135 | to SIG_DFL for us. */ | |
1136 | signal (SIGQUIT, do_nothing); | |
1137 | #ifdef SIGHUP | |
1138 | if (signal (SIGHUP, do_nothing) != SIG_IGN) | |
1139 | signal (SIGHUP, disconnect); | |
1140 | #endif | |
1141 | signal (SIGFPE, float_handler); | |
9e0b60a8 | 1142 | |
d318976c FN |
1143 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
1144 | signal (SIGWINCH, SIGWINCH_HANDLER); | |
1145 | #endif | |
9e0b60a8 JM |
1146 | } |
1147 | \f | |
d318976c FN |
1148 | /* Read one line from the command input stream `instream' |
1149 | into the local static buffer `linebuffer' (whose current length | |
1150 | is `linelength'). | |
1151 | The buffer is made bigger as necessary. | |
1152 | Returns the address of the start of the line. | |
9e0b60a8 | 1153 | |
d318976c | 1154 | NULL is returned for end of file. |
9e0b60a8 | 1155 | |
d318976c FN |
1156 | *If* the instream == stdin & stdin is a terminal, the line read |
1157 | is copied into the file line saver (global var char *line, | |
1158 | length linesize) so that it can be duplicated. | |
9e0b60a8 | 1159 | |
d318976c FN |
1160 | This routine either uses fancy command line editing or |
1161 | simple input as the user has requested. */ | |
10689f25 | 1162 | |
d318976c FN |
1163 | char * |
1164 | command_line_input (char *prompt_arg, int repeat, char *annotation_suffix) | |
9e0b60a8 | 1165 | { |
d318976c FN |
1166 | static char *linebuffer = 0; |
1167 | static unsigned linelength = 0; | |
9e0b60a8 | 1168 | register char *p; |
d318976c FN |
1169 | char *p1; |
1170 | char *rl; | |
1171 | char *local_prompt = prompt_arg; | |
1172 | char *nline; | |
1173 | char got_eof = 0; | |
1174 | ||
1175 | /* The annotation suffix must be non-NULL. */ | |
1176 | if (annotation_suffix == NULL) | |
1177 | annotation_suffix = ""; | |
9e0b60a8 | 1178 | |
d318976c FN |
1179 | if (annotation_level > 1 && instream == stdin) |
1180 | { | |
1181 | local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg)) | |
1182 | + strlen (annotation_suffix) + 40); | |
1183 | if (prompt_arg == NULL) | |
1184 | local_prompt[0] = '\0'; | |
1185 | else | |
1186 | strcpy (local_prompt, prompt_arg); | |
1187 | strcat (local_prompt, "\n\032\032"); | |
1188 | strcat (local_prompt, annotation_suffix); | |
1189 | strcat (local_prompt, "\n"); | |
1190 | } | |
9e0b60a8 | 1191 | |
d318976c | 1192 | if (linebuffer == 0) |
9e0b60a8 | 1193 | { |
d318976c FN |
1194 | linelength = 80; |
1195 | linebuffer = (char *) xmalloc (linelength); | |
9e0b60a8 | 1196 | } |
9e0b60a8 | 1197 | |
d318976c | 1198 | p = linebuffer; |
9e0b60a8 | 1199 | |
d318976c FN |
1200 | /* Control-C quits instantly if typed while in this loop |
1201 | since it should not wait until the user types a newline. */ | |
1202 | immediate_quit++; | |
1203 | #ifdef STOP_SIGNAL | |
1204 | if (job_control) | |
73bc900d | 1205 | { |
d318976c FN |
1206 | if (event_loop_p) |
1207 | signal (STOP_SIGNAL, handle_stop_sig); | |
1208 | else | |
1209 | signal (STOP_SIGNAL, stop_sig); | |
1210 | } | |
1211 | #endif | |
1212 | ||
1213 | while (1) | |
9e0b60a8 | 1214 | { |
d318976c FN |
1215 | /* Make sure that all output has been output. Some machines may let |
1216 | you get away with leaving out some of the gdb_flush, but not all. */ | |
1217 | wrap_here (""); | |
1218 | gdb_flush (gdb_stdout); | |
1219 | gdb_flush (gdb_stderr); | |
1220 | ||
1221 | if (source_file_name != NULL) | |
1222 | { | |
1223 | ++source_line_number; | |
1224 | sprintf (source_error, | |
1225 | "%s%s:%d: Error in sourced command file:\n", | |
1226 | source_pre_error, | |
1227 | source_file_name, | |
1228 | source_line_number); | |
1229 | error_pre_print = source_error; | |
1230 | } | |
1231 | ||
1232 | if (annotation_level > 1 && instream == stdin) | |
1233 | { | |
1234 | printf_unfiltered ("\n\032\032pre-"); | |
1235 | printf_unfiltered (annotation_suffix); | |
1236 | printf_unfiltered ("\n"); | |
1237 | } | |
1238 | ||
1239 | /* Don't use fancy stuff if not talking to stdin. */ | |
1240 | if (readline_hook && instream == NULL) | |
1241 | { | |
1242 | rl = (*readline_hook) (local_prompt); | |
1243 | } | |
1244 | else if (command_editing_p && instream == stdin && ISATTY (instream)) | |
1245 | { | |
1246 | rl = readline (local_prompt); | |
1247 | } | |
9e0b60a8 | 1248 | else |
d318976c FN |
1249 | { |
1250 | rl = gdb_readline (local_prompt); | |
1251 | } | |
9e0b60a8 | 1252 | |
d318976c FN |
1253 | if (annotation_level > 1 && instream == stdin) |
1254 | { | |
1255 | printf_unfiltered ("\n\032\032post-"); | |
1256 | printf_unfiltered (annotation_suffix); | |
1257 | printf_unfiltered ("\n"); | |
1258 | } | |
9e0b60a8 | 1259 | |
d318976c | 1260 | if (!rl || rl == (char *) EOF) |
9e0b60a8 | 1261 | { |
d318976c FN |
1262 | got_eof = 1; |
1263 | break; | |
9e0b60a8 | 1264 | } |
d318976c FN |
1265 | if (strlen (rl) + 1 + (p - linebuffer) > linelength) |
1266 | { | |
1267 | linelength = strlen (rl) + 1 + (p - linebuffer); | |
1268 | nline = (char *) xrealloc (linebuffer, linelength); | |
1269 | p += nline - linebuffer; | |
1270 | linebuffer = nline; | |
1271 | } | |
1272 | p1 = rl; | |
1273 | /* Copy line. Don't copy null at end. (Leaves line alone | |
1274 | if this was just a newline) */ | |
1275 | while (*p1) | |
1276 | *p++ = *p1++; | |
9e0b60a8 | 1277 | |
b8c9b27d | 1278 | xfree (rl); /* Allocated in readline. */ |
9e0b60a8 | 1279 | |
d318976c FN |
1280 | if (p == linebuffer || *(p - 1) != '\\') |
1281 | break; | |
9e0b60a8 | 1282 | |
d318976c FN |
1283 | p--; /* Put on top of '\'. */ |
1284 | local_prompt = (char *) 0; | |
1285 | } | |
9e0b60a8 | 1286 | |
d318976c FN |
1287 | #ifdef STOP_SIGNAL |
1288 | if (job_control) | |
1289 | signal (STOP_SIGNAL, SIG_DFL); | |
1290 | #endif | |
1291 | immediate_quit--; | |
9e0b60a8 | 1292 | |
d318976c FN |
1293 | if (got_eof) |
1294 | return NULL; | |
9e0b60a8 | 1295 | |
d318976c FN |
1296 | #define SERVER_COMMAND_LENGTH 7 |
1297 | server_command = | |
1298 | (p - linebuffer > SERVER_COMMAND_LENGTH) | |
1299 | && STREQN (linebuffer, "server ", SERVER_COMMAND_LENGTH); | |
1300 | if (server_command) | |
9e0b60a8 | 1301 | { |
d318976c FN |
1302 | /* Note that we don't set `line'. Between this and the check in |
1303 | dont_repeat, this insures that repeating will still do the | |
1304 | right thing. */ | |
1305 | *p = '\0'; | |
1306 | return linebuffer + SERVER_COMMAND_LENGTH; | |
9e0b60a8 | 1307 | } |
9e0b60a8 | 1308 | |
d318976c FN |
1309 | /* Do history expansion if that is wished. */ |
1310 | if (history_expansion_p && instream == stdin | |
1311 | && ISATTY (instream)) | |
1312 | { | |
1313 | char *history_value; | |
1314 | int expanded; | |
9e0b60a8 | 1315 | |
d318976c FN |
1316 | *p = '\0'; /* Insert null now. */ |
1317 | expanded = history_expand (linebuffer, &history_value); | |
1318 | if (expanded) | |
1319 | { | |
1320 | /* Print the changes. */ | |
1321 | printf_unfiltered ("%s\n", history_value); | |
9e0b60a8 | 1322 | |
d318976c FN |
1323 | /* If there was an error, call this function again. */ |
1324 | if (expanded < 0) | |
1325 | { | |
b8c9b27d | 1326 | xfree (history_value); |
d318976c FN |
1327 | return command_line_input (prompt_arg, repeat, annotation_suffix); |
1328 | } | |
1329 | if (strlen (history_value) > linelength) | |
1330 | { | |
1331 | linelength = strlen (history_value) + 1; | |
1332 | linebuffer = (char *) xrealloc (linebuffer, linelength); | |
1333 | } | |
1334 | strcpy (linebuffer, history_value); | |
1335 | p = linebuffer + strlen (linebuffer); | |
b8c9b27d | 1336 | xfree (history_value); |
d318976c FN |
1337 | } |
1338 | } | |
9e0b60a8 | 1339 | |
d318976c FN |
1340 | /* If we just got an empty line, and that is supposed |
1341 | to repeat the previous command, return the value in the | |
1342 | global buffer. */ | |
1343 | if (repeat && p == linebuffer) | |
1344 | return line; | |
1345 | for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++); | |
1346 | if (repeat && !*p1) | |
1347 | return line; | |
9e0b60a8 | 1348 | |
d318976c | 1349 | *p = 0; |
9e0b60a8 | 1350 | |
d318976c FN |
1351 | /* Add line to history if appropriate. */ |
1352 | if (instream == stdin | |
1353 | && ISATTY (stdin) && *linebuffer) | |
1354 | add_history (linebuffer); | |
9e0b60a8 | 1355 | |
d318976c FN |
1356 | /* Note: lines consisting solely of comments are added to the command |
1357 | history. This is useful when you type a command, and then | |
1358 | realize you don't want to execute it quite yet. You can comment | |
1359 | out the command and then later fetch it from the value history | |
1360 | and remove the '#'. The kill ring is probably better, but some | |
1361 | people are in the habit of commenting things out. */ | |
1362 | if (*p1 == '#') | |
1363 | *p1 = '\0'; /* Found a comment. */ | |
9e0b60a8 | 1364 | |
d318976c FN |
1365 | /* Save into global buffer if appropriate. */ |
1366 | if (repeat) | |
1367 | { | |
1368 | if (linelength > linesize) | |
1369 | { | |
1370 | line = xrealloc (line, linelength); | |
1371 | linesize = linelength; | |
1372 | } | |
1373 | strcpy (line, linebuffer); | |
1374 | return line; | |
1375 | } | |
9e0b60a8 | 1376 | |
d318976c | 1377 | return linebuffer; |
9e0b60a8 JM |
1378 | } |
1379 | \f | |
1380 | /* Print the GDB banner. */ | |
1381 | void | |
fba45db2 | 1382 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1383 | { |
1384 | /* From GNU coding standards, first line is meant to be easy for a | |
1385 | program to parse, and is just canonical program name and version | |
1386 | number, which starts after last space. */ | |
1387 | ||
b4df4f68 | 1388 | #ifdef MI_OUT |
8b93c638 | 1389 | /* Print it console style until a format is defined */ |
b4df4f68 | 1390 | fprintf_filtered (stream, "GNU gdb %s (MI_OUT)\n", version); |
8b93c638 | 1391 | #else |
9e0b60a8 | 1392 | fprintf_filtered (stream, "GNU gdb %s\n", version); |
8b93c638 | 1393 | #endif |
9e0b60a8 JM |
1394 | |
1395 | /* Second line is a copyright notice. */ | |
1396 | ||
107b56f0 | 1397 | fprintf_filtered (stream, "Copyright 2000 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1398 | |
1399 | /* Following the copyright is a brief statement that the program is | |
1400 | free software, that users are free to copy and change it on | |
1401 | certain conditions, that it is covered by the GNU GPL, and that | |
1402 | there is no warranty. */ | |
1403 | ||
1404 | fprintf_filtered (stream, "\ | |
1405 | GDB is free software, covered by the GNU General Public License, and you are\n\ | |
1406 | welcome to change it and/or distribute copies of it under certain conditions.\n\ | |
1407 | Type \"show copying\" to see the conditions.\n\ | |
1408 | There is absolutely no warranty for GDB. Type \"show warranty\" for details.\n"); | |
1409 | ||
1410 | /* After the required info we print the configuration information. */ | |
1411 | ||
1412 | fprintf_filtered (stream, "This GDB was configured as \""); | |
1413 | if (!STREQ (host_name, target_name)) | |
1414 | { | |
1415 | fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name); | |
1416 | } | |
1417 | else | |
1418 | { | |
1419 | fprintf_filtered (stream, "%s", host_name); | |
1420 | } | |
1421 | fprintf_filtered (stream, "\"."); | |
1422 | } | |
9e0b60a8 JM |
1423 | \f |
1424 | /* get_prompt: access method for the GDB prompt string. */ | |
1425 | ||
1426 | #define MAX_PROMPT_SIZE 256 | |
1427 | ||
1428 | /* | |
1429 | * int get_prompt_1 (char * buf); | |
1430 | * | |
1431 | * Work-horse for get_prompt (called via catch_errors). | |
1432 | * Argument is buffer to hold the formatted prompt. | |
1433 | * | |
1434 | * Returns: 1 for success (use formatted prompt) | |
1435 | * 0 for failure (use gdb_prompt_string). | |
c5aa993b | 1436 | */ |
9e0b60a8 JM |
1437 | |
1438 | static int gdb_prompt_escape; | |
1439 | ||
1440 | static int | |
710b33bd | 1441 | get_prompt_1 (void *data) |
9e0b60a8 | 1442 | { |
710b33bd | 1443 | char *formatted_prompt = data; |
9e0b60a8 JM |
1444 | char *local_prompt; |
1445 | ||
6426a772 | 1446 | if (event_loop_p) |
9e0b60a8 JM |
1447 | local_prompt = PROMPT (0); |
1448 | else | |
1449 | local_prompt = gdb_prompt_string; | |
1450 | ||
1451 | ||
1452 | if (gdb_prompt_escape == 0) | |
1453 | { | |
c5aa993b | 1454 | return 0; /* do no formatting */ |
9e0b60a8 | 1455 | } |
c5aa993b JM |
1456 | else |
1457 | /* formatted prompt */ | |
9e0b60a8 | 1458 | { |
c5aa993b | 1459 | char fmt[40], *promptp, *outp, *tmp; |
9e0b60a8 | 1460 | value_ptr arg_val; |
c5aa993b JM |
1461 | DOUBLEST doubleval; |
1462 | LONGEST longval; | |
9e0b60a8 JM |
1463 | CORE_ADDR addrval; |
1464 | ||
1465 | int i, len; | |
1466 | struct type *arg_type, *elt_type; | |
1467 | ||
1468 | promptp = local_prompt; | |
c5aa993b | 1469 | outp = formatted_prompt; |
9e0b60a8 JM |
1470 | |
1471 | while (*promptp != '\0') | |
1472 | { | |
1473 | int available = MAX_PROMPT_SIZE - (outp - formatted_prompt) - 1; | |
1474 | ||
1475 | if (*promptp != gdb_prompt_escape) | |
1476 | { | |
c5aa993b | 1477 | if (available >= 1) /* overflow protect */ |
9e0b60a8 JM |
1478 | *outp++ = *promptp++; |
1479 | } | |
1480 | else | |
1481 | { | |
1482 | /* GDB prompt string contains escape char. Parse for arg. | |
c5aa993b JM |
1483 | Two consecutive escape chars followed by arg followed by |
1484 | a comma means to insert the arg using a default format. | |
1485 | Otherwise a printf format string may be included between | |
1486 | the two escape chars. eg: | |
1487 | %%foo, insert foo using default format | |
1488 | %2.2f%foo, insert foo using "%2.2f" format | |
1489 | A mismatch between the format string and the data type | |
1490 | of "foo" is an error (which we don't know how to protect | |
1491 | against). */ | |
9e0b60a8 JM |
1492 | |
1493 | fmt[0] = '\0'; /* assume null format string */ | |
1494 | if (promptp[1] == gdb_prompt_escape) /* double esc char */ | |
1495 | { | |
1496 | promptp += 2; /* skip past two escape chars. */ | |
1497 | } | |
1498 | else | |
1499 | { | |
1500 | /* extract format string from between two esc chars */ | |
1501 | i = 0; | |
c5aa993b JM |
1502 | do |
1503 | { | |
1504 | fmt[i++] = *promptp++; /* copy format string */ | |
1505 | } | |
1506 | while (i < sizeof (fmt) - 1 && | |
1507 | *promptp != gdb_prompt_escape && | |
1508 | *promptp != '\0'); | |
9e0b60a8 JM |
1509 | |
1510 | if (*promptp != gdb_prompt_escape) | |
1511 | error ("Syntax error at prompt position %d", | |
1512 | promptp - local_prompt); | |
1513 | else | |
1514 | { | |
1515 | promptp++; /* skip second escape char */ | |
1516 | fmt[i++] = '\0'; /* terminate the format string */ | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | arg_val = parse_to_comma_and_eval (&promptp); | |
1521 | if (*promptp == ',') | |
c5aa993b | 1522 | promptp++; /* skip past the comma */ |
9e0b60a8 | 1523 | arg_type = check_typedef (VALUE_TYPE (arg_val)); |
c5aa993b | 1524 | switch (TYPE_CODE (arg_type)) |
9e0b60a8 JM |
1525 | { |
1526 | case TYPE_CODE_ARRAY: | |
1527 | elt_type = check_typedef (TYPE_TARGET_TYPE (arg_type)); | |
c5aa993b | 1528 | if (TYPE_LENGTH (arg_type) > 0 && |
9e0b60a8 JM |
1529 | TYPE_LENGTH (elt_type) == 1 && |
1530 | TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1531 | { | |
1532 | int len = TYPE_LENGTH (arg_type); | |
1533 | ||
1534 | if (VALUE_LAZY (arg_val)) | |
1535 | value_fetch_lazy (arg_val); | |
1536 | tmp = VALUE_CONTENTS (arg_val); | |
1537 | ||
1538 | if (len > available) | |
c5aa993b | 1539 | len = available; /* overflow protect */ |
9e0b60a8 JM |
1540 | |
1541 | /* FIXME: how to protect GDB from crashing | |
c5aa993b | 1542 | from bad user-supplied format string? */ |
9e0b60a8 JM |
1543 | if (fmt[0] != 0) |
1544 | sprintf (outp, fmt, tmp); | |
1545 | else | |
1546 | strncpy (outp, tmp, len); | |
1547 | outp[len] = '\0'; | |
1548 | } | |
1549 | break; | |
1550 | case TYPE_CODE_PTR: | |
1551 | elt_type = check_typedef (TYPE_TARGET_TYPE (arg_type)); | |
1552 | addrval = value_as_pointer (arg_val); | |
1553 | ||
1554 | if (TYPE_LENGTH (elt_type) == 1 && | |
c5aa993b | 1555 | TYPE_CODE (elt_type) == TYPE_CODE_INT && |
9e0b60a8 JM |
1556 | addrval != 0) |
1557 | { | |
1558 | /* display it as a string */ | |
1559 | char *default_fmt = "%s"; | |
1560 | char *tmp; | |
1561 | int err = 0; | |
1562 | ||
1563 | /* Limiting the number of bytes that the following call | |
c5aa993b JM |
1564 | will read protects us from sprintf overflow later. */ |
1565 | i = target_read_string (addrval, /* src */ | |
1566 | &tmp, /* dest */ | |
1567 | available, /* len */ | |
9e0b60a8 JM |
1568 | &err); |
1569 | if (err) /* read failed */ | |
1570 | error ("%s on target_read", safe_strerror (err)); | |
1571 | ||
1572 | tmp[i] = '\0'; /* force-terminate string */ | |
1573 | /* FIXME: how to protect GDB from crashing | |
c5aa993b JM |
1574 | from bad user-supplied format string? */ |
1575 | sprintf (outp, fmt[0] == 0 ? default_fmt : fmt, | |
9e0b60a8 | 1576 | tmp); |
b8c9b27d | 1577 | xfree (tmp); |
9e0b60a8 JM |
1578 | } |
1579 | else | |
1580 | { | |
1581 | /* display it as a pointer */ | |
1582 | char *default_fmt = "0x%x"; | |
1583 | ||
1584 | /* FIXME: how to protect GDB from crashing | |
c5aa993b JM |
1585 | from bad user-supplied format string? */ |
1586 | if (available >= 16 /*? */ ) /* overflow protect */ | |
9e0b60a8 JM |
1587 | sprintf (outp, fmt[0] == 0 ? default_fmt : fmt, |
1588 | (long) addrval); | |
1589 | } | |
1590 | break; | |
1591 | case TYPE_CODE_FLT: | |
1592 | { | |
1593 | char *default_fmt = "%g"; | |
1594 | ||
1595 | doubleval = value_as_double (arg_val); | |
1596 | /* FIXME: how to protect GDB from crashing | |
1597 | from bad user-supplied format string? */ | |
c5aa993b | 1598 | if (available >= 16 /*? */ ) /* overflow protect */ |
9e0b60a8 JM |
1599 | sprintf (outp, fmt[0] == 0 ? default_fmt : fmt, |
1600 | (double) doubleval); | |
1601 | break; | |
1602 | } | |
1603 | case TYPE_CODE_INT: | |
1604 | { | |
1605 | char *default_fmt = "%d"; | |
1606 | ||
1607 | longval = value_as_long (arg_val); | |
1608 | /* FIXME: how to protect GDB from crashing | |
1609 | from bad user-supplied format string? */ | |
c5aa993b | 1610 | if (available >= 16 /*? */ ) /* overflow protect */ |
9e0b60a8 JM |
1611 | sprintf (outp, fmt[0] == 0 ? default_fmt : fmt, |
1612 | (long) longval); | |
1613 | break; | |
1614 | } | |
1615 | case TYPE_CODE_BOOL: | |
1616 | { | |
1617 | /* no default format for bool */ | |
1618 | longval = value_as_long (arg_val); | |
c5aa993b | 1619 | if (available >= 8 /*? */ ) /* overflow protect */ |
9e0b60a8 JM |
1620 | { |
1621 | if (longval) | |
1622 | strcpy (outp, "<true>"); | |
1623 | else | |
1624 | strcpy (outp, "<false>"); | |
1625 | } | |
1626 | break; | |
1627 | } | |
1628 | case TYPE_CODE_ENUM: | |
1629 | { | |
1630 | /* no default format for enum */ | |
1631 | longval = value_as_long (arg_val); | |
1632 | len = TYPE_NFIELDS (arg_type); | |
1633 | /* find enum name if possible */ | |
1634 | for (i = 0; i < len; i++) | |
1635 | if (TYPE_FIELD_BITPOS (arg_type, i) == longval) | |
c5aa993b | 1636 | break; /* match -- end loop */ |
9e0b60a8 JM |
1637 | |
1638 | if (i < len) /* enum name found */ | |
1639 | { | |
1640 | char *name = TYPE_FIELD_NAME (arg_type, i); | |
1641 | ||
1642 | strncpy (outp, name, available); | |
1643 | /* in casel available < strlen (name), */ | |
1644 | outp[available] = '\0'; | |
1645 | } | |
1646 | else | |
1647 | { | |
c5aa993b | 1648 | if (available >= 16 /*? */ ) /* overflow protect */ |
d4f3574e | 1649 | sprintf (outp, "%ld", (long) longval); |
9e0b60a8 JM |
1650 | } |
1651 | break; | |
1652 | } | |
1653 | case TYPE_CODE_VOID: | |
1654 | *outp = '\0'; | |
1655 | break; /* void type -- no output */ | |
1656 | default: | |
1657 | error ("bad data type at prompt position %d", | |
1658 | promptp - local_prompt); | |
1659 | break; | |
1660 | } | |
1661 | outp += strlen (outp); | |
1662 | } | |
1663 | } | |
1664 | *outp++ = '\0'; /* terminate prompt string */ | |
1665 | return 1; | |
1666 | } | |
1667 | } | |
1668 | ||
1669 | char * | |
fba45db2 | 1670 | get_prompt (void) |
9e0b60a8 JM |
1671 | { |
1672 | static char buf[MAX_PROMPT_SIZE]; | |
1673 | ||
c5aa993b | 1674 | if (catch_errors (get_prompt_1, buf, "bad formatted prompt: ", |
9e0b60a8 JM |
1675 | RETURN_MASK_ALL)) |
1676 | { | |
c5aa993b | 1677 | return &buf[0]; /* successful formatted prompt */ |
9e0b60a8 JM |
1678 | } |
1679 | else | |
1680 | { | |
1681 | /* Prompt could not be formatted. */ | |
6426a772 | 1682 | if (event_loop_p) |
9e0b60a8 JM |
1683 | return PROMPT (0); |
1684 | else | |
1685 | return gdb_prompt_string; | |
1686 | } | |
1687 | } | |
1688 | ||
1689 | void | |
fba45db2 | 1690 | set_prompt (char *s) |
9e0b60a8 JM |
1691 | { |
1692 | /* ??rehrauer: I don't know why this fails, since it looks as though | |
1693 | assignments to prompt are wrapped in calls to savestring... | |
c5aa993b | 1694 | if (prompt != NULL) |
b8c9b27d | 1695 | xfree (prompt); |
c5aa993b | 1696 | */ |
6426a772 | 1697 | if (event_loop_p) |
9e0b60a8 JM |
1698 | PROMPT (0) = savestring (s, strlen (s)); |
1699 | else | |
1700 | gdb_prompt_string = savestring (s, strlen (s)); | |
1701 | } | |
9e0b60a8 | 1702 | \f |
c5aa993b | 1703 | |
9e0b60a8 JM |
1704 | /* If necessary, make the user confirm that we should quit. Return |
1705 | non-zero if we should quit, zero if we shouldn't. */ | |
1706 | ||
1707 | int | |
fba45db2 | 1708 | quit_confirm (void) |
9e0b60a8 JM |
1709 | { |
1710 | if (inferior_pid != 0 && target_has_execution) | |
1711 | { | |
1712 | char *s; | |
1713 | ||
1714 | /* This is something of a hack. But there's no reliable way to | |
c5aa993b JM |
1715 | see if a GUI is running. The `use_windows' variable doesn't |
1716 | cut it. */ | |
9e0b60a8 JM |
1717 | if (init_ui_hook) |
1718 | s = "A debugging session is active.\nDo you still want to close the debugger?"; | |
1719 | else if (attach_flag) | |
1720 | s = "The program is running. Quit anyway (and detach it)? "; | |
1721 | else | |
1722 | s = "The program is running. Exit anyway? "; | |
1723 | ||
c5aa993b | 1724 | if (!query (s)) |
9e0b60a8 JM |
1725 | return 0; |
1726 | } | |
1727 | ||
1728 | return 1; | |
1729 | } | |
1730 | ||
1731 | /* Quit without asking for confirmation. */ | |
1732 | ||
1733 | void | |
fba45db2 | 1734 | quit_force (char *args, int from_tty) |
9e0b60a8 JM |
1735 | { |
1736 | int exit_code = 0; | |
1737 | ||
1738 | /* An optional expression may be used to cause gdb to terminate with the | |
1739 | value of that expression. */ | |
1740 | if (args) | |
1741 | { | |
1742 | value_ptr val = parse_and_eval (args); | |
1743 | ||
1744 | exit_code = (int) value_as_long (val); | |
1745 | } | |
1746 | ||
1747 | if (inferior_pid != 0 && target_has_execution) | |
1748 | { | |
1749 | if (attach_flag) | |
1750 | target_detach (args, from_tty); | |
1751 | else | |
1752 | target_kill (); | |
1753 | } | |
1754 | ||
1755 | /* UDI wants this, to kill the TIP. */ | |
1756 | target_close (1); | |
1757 | ||
1758 | /* Save the history information if it is appropriate to do so. */ | |
1759 | if (write_history_p && history_filename) | |
1760 | write_history (history_filename); | |
1761 | ||
c5aa993b | 1762 | do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */ |
9e0b60a8 JM |
1763 | |
1764 | #if defined(TUI) | |
1765 | /* tuiDo((TuiOpaqueFuncPtr)tuiCleanUp); */ | |
1766 | /* The above does not need to be inside a tuiDo(), since | |
1767 | * it is not manipulating the curses screen, but rather, | |
1768 | * it is tearing it down. | |
1769 | */ | |
1770 | if (tui_version) | |
c5aa993b | 1771 | tuiCleanUp (); |
9e0b60a8 JM |
1772 | #endif |
1773 | ||
1774 | exit (exit_code); | |
1775 | } | |
1776 | ||
9e0b60a8 JM |
1777 | /* Returns whether GDB is running on a terminal and whether the user |
1778 | desires that questions be asked of them on that terminal. */ | |
1779 | ||
1780 | int | |
fba45db2 | 1781 | input_from_terminal_p (void) |
9e0b60a8 JM |
1782 | { |
1783 | return gdb_has_a_terminal () && (instream == stdin) & caution; | |
1784 | } | |
1785 | \f | |
9e0b60a8 JM |
1786 | /* ARGSUSED */ |
1787 | static void | |
fba45db2 | 1788 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1789 | { |
c5aa993b JM |
1790 | *line = 0; /* Can't call dont_repeat here because we're not |
1791 | necessarily reading from stdin. */ | |
9e0b60a8 JM |
1792 | } |
1793 | \f | |
1794 | /* Functions to manipulate command line editing control variables. */ | |
1795 | ||
1796 | /* Number of commands to print in each call to show_commands. */ | |
1797 | #define Hist_print 10 | |
d318976c | 1798 | void |
fba45db2 | 1799 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1800 | { |
1801 | /* Index for history commands. Relative to history_base. */ | |
1802 | int offset; | |
1803 | ||
1804 | /* Number of the history entry which we are planning to display next. | |
1805 | Relative to history_base. */ | |
1806 | static int num = 0; | |
1807 | ||
1808 | /* The first command in the history which doesn't exist (i.e. one more | |
1809 | than the number of the last command). Relative to history_base. */ | |
1810 | int hist_len; | |
1811 | ||
a14ed312 | 1812 | extern HIST_ENTRY *history_get (int); |
9e0b60a8 JM |
1813 | |
1814 | /* Print out some of the commands from the command history. */ | |
1815 | /* First determine the length of the history list. */ | |
1816 | hist_len = history_size; | |
1817 | for (offset = 0; offset < history_size; offset++) | |
1818 | { | |
1819 | if (!history_get (history_base + offset)) | |
1820 | { | |
1821 | hist_len = offset; | |
1822 | break; | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | if (args) | |
1827 | { | |
1828 | if (args[0] == '+' && args[1] == '\0') | |
1829 | /* "info editing +" should print from the stored position. */ | |
1830 | ; | |
1831 | else | |
1832 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1833 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1834 | } |
1835 | /* "show commands" means print the last Hist_print commands. */ | |
1836 | else | |
1837 | { | |
1838 | num = hist_len - Hist_print; | |
1839 | } | |
1840 | ||
1841 | if (num < 0) | |
1842 | num = 0; | |
1843 | ||
1844 | /* If there are at least Hist_print commands, we want to display the last | |
1845 | Hist_print rather than, say, the last 6. */ | |
1846 | if (hist_len - num < Hist_print) | |
1847 | { | |
1848 | num = hist_len - Hist_print; | |
1849 | if (num < 0) | |
1850 | num = 0; | |
1851 | } | |
1852 | ||
1853 | for (offset = num; offset < num + Hist_print && offset < hist_len; offset++) | |
1854 | { | |
1855 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1856 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1857 | } |
1858 | ||
1859 | /* The next command we want to display is the next one that we haven't | |
1860 | displayed yet. */ | |
1861 | num += Hist_print; | |
1862 | ||
1863 | /* If the user repeats this command with return, it should do what | |
1864 | "show commands +" does. This is unnecessary if arg is null, | |
1865 | because "show commands +" is not useful after "show commands". */ | |
1866 | if (from_tty && args) | |
1867 | { | |
1868 | args[0] = '+'; | |
1869 | args[1] = '\0'; | |
1870 | } | |
1871 | } | |
1872 | ||
1873 | /* Called by do_setshow_command. */ | |
1874 | /* ARGSUSED */ | |
1875 | static void | |
fba45db2 | 1876 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1877 | { |
1878 | if (history_size == INT_MAX) | |
1879 | unstifle_history (); | |
1880 | else if (history_size >= 0) | |
1881 | stifle_history (history_size); | |
1882 | else | |
1883 | { | |
1884 | history_size = INT_MAX; | |
1885 | error ("History size must be non-negative"); | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | /* ARGSUSED */ | |
d318976c | 1890 | void |
fba45db2 | 1891 | set_history (char *args, int from_tty) |
9e0b60a8 JM |
1892 | { |
1893 | printf_unfiltered ("\"set history\" must be followed by the name of a history subcommand.\n"); | |
1894 | help_list (sethistlist, "set history ", -1, gdb_stdout); | |
1895 | } | |
1896 | ||
1897 | /* ARGSUSED */ | |
d318976c | 1898 | void |
fba45db2 | 1899 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1900 | { |
1901 | cmd_show_list (showhistlist, from_tty, ""); | |
1902 | } | |
1903 | ||
1904 | int info_verbose = 0; /* Default verbose msgs off */ | |
1905 | ||
1906 | /* Called by do_setshow_command. An elaborate joke. */ | |
1907 | /* ARGSUSED */ | |
d318976c | 1908 | void |
fba45db2 | 1909 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 JM |
1910 | { |
1911 | char *cmdname = "verbose"; | |
1912 | struct cmd_list_element *showcmd; | |
1913 | ||
1914 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1915 | ||
1916 | if (info_verbose) | |
1917 | { | |
1918 | c->doc = "Set verbose printing of informational messages."; | |
1919 | showcmd->doc = "Show verbose printing of informational messages."; | |
1920 | } | |
1921 | else | |
1922 | { | |
1923 | c->doc = "Set verbosity."; | |
1924 | showcmd->doc = "Show verbosity."; | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | static void | |
fba45db2 | 1929 | float_handler (int signo) |
9e0b60a8 JM |
1930 | { |
1931 | /* This message is based on ANSI C, section 4.7. Note that integer | |
1932 | divide by zero causes this, so "float" is a misnomer. */ | |
1933 | signal (SIGFPE, float_handler); | |
1934 | error ("Erroneous arithmetic operation."); | |
1935 | } | |
5d161b24 | 1936 | |
9e0b60a8 JM |
1937 | /* Init the history buffer. Note that we are called after the init file(s) |
1938 | * have been read so that the user can change the history file via his | |
1939 | * .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1940 | * overrides all of this. | |
1941 | */ | |
1942 | ||
1943 | void | |
fba45db2 | 1944 | init_history (void) |
9e0b60a8 JM |
1945 | { |
1946 | char *tmpenv; | |
1947 | ||
1948 | tmpenv = getenv ("HISTSIZE"); | |
1949 | if (tmpenv) | |
1950 | history_size = atoi (tmpenv); | |
1951 | else if (!history_size) | |
1952 | history_size = 256; | |
1953 | ||
1954 | stifle_history (history_size); | |
1955 | ||
1956 | tmpenv = getenv ("GDBHISTFILE"); | |
1957 | if (tmpenv) | |
c5aa993b JM |
1958 | history_filename = savestring (tmpenv, strlen (tmpenv)); |
1959 | else if (!history_filename) | |
1960 | { | |
1961 | /* We include the current directory so that if the user changes | |
1962 | directories the file written will be the same as the one | |
1963 | that was read. */ | |
a0b3c4fd | 1964 | #ifdef __MSDOS__ |
eb2f494a AC |
1965 | /* No leading dots in file names are allowed on MSDOS. */ |
1966 | history_filename = concat (current_directory, "/_gdb_history", NULL); | |
a0b3c4fd | 1967 | #else |
c5aa993b | 1968 | history_filename = concat (current_directory, "/.gdb_history", NULL); |
a0b3c4fd | 1969 | #endif |
c5aa993b | 1970 | } |
9e0b60a8 JM |
1971 | read_history (history_filename); |
1972 | } | |
1973 | ||
1974 | static void | |
fba45db2 | 1975 | init_main (void) |
9e0b60a8 JM |
1976 | { |
1977 | struct cmd_list_element *c; | |
1978 | ||
1979 | /* If we are running the asynchronous version, | |
1980 | we initialize the prompts differently. */ | |
6426a772 | 1981 | if (!event_loop_p) |
9e0b60a8 | 1982 | { |
c5aa993b | 1983 | gdb_prompt_string = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); |
9e0b60a8 JM |
1984 | } |
1985 | else | |
1986 | { | |
1987 | /* initialize the prompt stack to a simple "(gdb) " prompt or to | |
96baa820 | 1988 | whatever the DEFAULT_PROMPT is. */ |
9e0b60a8 | 1989 | the_prompts.top = 0; |
c5aa993b | 1990 | PREFIX (0) = ""; |
c5aa993b | 1991 | PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT)); |
c5aa993b | 1992 | SUFFIX (0) = ""; |
9e0b60a8 | 1993 | /* Set things up for annotation_level > 1, if the user ever decides |
c5aa993b | 1994 | to use it. */ |
9e0b60a8 JM |
1995 | async_annotation_suffix = "prompt"; |
1996 | /* Set the variable associated with the setshow prompt command. */ | |
1997 | new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0))); | |
1998 | } | |
1999 | gdb_prompt_escape = 0; /* default to none. */ | |
2000 | ||
2001 | /* Set the important stuff up for command editing. */ | |
2002 | command_editing_p = 1; | |
9e0b60a8 JM |
2003 | history_expansion_p = 0; |
2004 | write_history_p = 0; | |
2005 | ||
2006 | /* Setup important stuff for command line editing. */ | |
2007 | rl_completion_entry_function = (int (*)()) readline_line_completion_function; | |
d318976c FN |
2008 | rl_completer_word_break_characters = |
2009 | get_gdb_completer_word_break_characters (); | |
2010 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); | |
9e0b60a8 JM |
2011 | rl_readline_name = "gdb"; |
2012 | ||
9e0b60a8 JM |
2013 | /* The set prompt command is different depending whether or not the |
2014 | async version is run. NOTE: this difference is going to | |
2015 | disappear as we make the event loop be the default engine of | |
2016 | gdb. */ | |
6426a772 | 2017 | if (!event_loop_p) |
9e0b60a8 JM |
2018 | { |
2019 | add_show_from_set | |
c5aa993b | 2020 | (add_set_cmd ("prompt", class_support, var_string, |
9e0b60a8 JM |
2021 | (char *) &gdb_prompt_string, "Set gdb's prompt", |
2022 | &setlist), | |
2023 | &showlist); | |
2024 | } | |
2025 | else | |
2026 | { | |
c5aa993b JM |
2027 | c = add_set_cmd ("prompt", class_support, var_string, |
2028 | (char *) &new_async_prompt, "Set gdb's prompt", | |
9e0b60a8 JM |
2029 | &setlist); |
2030 | add_show_from_set (c, &showlist); | |
2031 | c->function.sfunc = set_async_prompt; | |
2032 | } | |
2033 | ||
2034 | add_show_from_set | |
c5aa993b | 2035 | (add_set_cmd ("prompt-escape-char", class_support, var_zinteger, |
9e0b60a8 JM |
2036 | (char *) &gdb_prompt_escape, |
2037 | "Set escape character for formatting of gdb's prompt", | |
2038 | &setlist), | |
2039 | &showlist); | |
2040 | ||
9e0b60a8 JM |
2041 | add_com ("dont-repeat", class_support, dont_repeat_command, "Don't repeat this command.\n\ |
2042 | Primarily used inside of user-defined commands that should not be repeated when\n\ | |
2043 | hitting return."); | |
2044 | ||
9e0b60a8 JM |
2045 | /* The set editing command is different depending whether or not the |
2046 | async version is run. NOTE: this difference is going to disappear | |
2047 | as we make the event loop be the default engine of gdb. */ | |
6426a772 | 2048 | if (!event_loop_p) |
9e0b60a8 JM |
2049 | { |
2050 | add_show_from_set | |
c5aa993b | 2051 | (add_set_cmd ("editing", class_support, var_boolean, (char *) &command_editing_p, |
9e0b60a8 JM |
2052 | "Set editing of command lines as they are typed.\n\ |
2053 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ | |
2054 | Without an argument, command line editing is enabled. To edit, use\n\ | |
2055 | EMACS-like or VI-like commands like control-P or ESC.", &setlist), | |
2056 | &showlist); | |
2057 | } | |
2058 | else | |
2059 | { | |
c5aa993b | 2060 | c = add_set_cmd ("editing", class_support, var_boolean, (char *) &async_command_editing_p, |
9e0b60a8 JM |
2061 | "Set editing of command lines as they are typed.\n\ |
2062 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ | |
2063 | Without an argument, command line editing is enabled. To edit, use\n\ | |
2064 | EMACS-like or VI-like commands like control-P or ESC.", &setlist); | |
2065 | ||
2066 | add_show_from_set (c, &showlist); | |
2067 | c->function.sfunc = set_async_editing_command; | |
2068 | } | |
2069 | ||
9e0b60a8 | 2070 | add_show_from_set |
c5aa993b JM |
2071 | (add_set_cmd ("save", no_class, var_boolean, (char *) &write_history_p, |
2072 | "Set saving of the history record on exit.\n\ | |
9e0b60a8 JM |
2073 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
2074 | Without an argument, saving is enabled.", &sethistlist), | |
2075 | &showhistlist); | |
2076 | ||
c5aa993b | 2077 | c = add_set_cmd ("size", no_class, var_integer, (char *) &history_size, |
9e0b60a8 JM |
2078 | "Set the size of the command history, \n\ |
2079 | ie. the number of previous commands to keep a record of.", &sethistlist); | |
2080 | add_show_from_set (c, &showhistlist); | |
2081 | c->function.sfunc = set_history_size_command; | |
2082 | ||
2083 | add_show_from_set | |
c5aa993b JM |
2084 | (add_set_cmd ("filename", no_class, var_filename, (char *) &history_filename, |
2085 | "Set the filename in which to record the command history\n\ | |
9e0b60a8 JM |
2086 | (the list of previous commands of which a record is kept).", &sethistlist), |
2087 | &showhistlist); | |
2088 | ||
2089 | add_show_from_set | |
2090 | (add_set_cmd ("confirm", class_support, var_boolean, | |
c5aa993b | 2091 | (char *) &caution, |
9e0b60a8 JM |
2092 | "Set whether to confirm potentially dangerous operations.", |
2093 | &setlist), | |
2094 | &showlist); | |
2095 | ||
9e0b60a8 JM |
2096 | /* The set annotate command is different depending whether or not |
2097 | the async version is run. NOTE: this difference is going to | |
2098 | disappear as we make the event loop be the default engine of | |
2099 | gdb. */ | |
6426a772 | 2100 | if (!event_loop_p) |
9e0b60a8 | 2101 | { |
c5aa993b JM |
2102 | c = add_set_cmd ("annotate", class_obscure, var_zinteger, |
2103 | (char *) &annotation_level, "Set annotation_level.\n\ | |
9e0b60a8 JM |
2104 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
2105 | 2 == output annotated suitably for use by programs that control GDB.", | |
2106 | &setlist); | |
2107 | c = add_show_from_set (c, &showlist); | |
2108 | } | |
2109 | else | |
2110 | { | |
c5aa993b JM |
2111 | c = add_set_cmd ("annotate", class_obscure, var_zinteger, |
2112 | (char *) &annotation_level, "Set annotation_level.\n\ | |
9e0b60a8 JM |
2113 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
2114 | 2 == output annotated suitably for use by programs that control GDB.", | |
c5aa993b | 2115 | &setlist); |
9e0b60a8 JM |
2116 | add_show_from_set (c, &showlist); |
2117 | c->function.sfunc = set_async_annotation_level; | |
2118 | } | |
6426a772 | 2119 | if (event_loop_p) |
104c1213 JM |
2120 | { |
2121 | add_show_from_set | |
2122 | (add_set_cmd ("exec-done-display", class_support, var_boolean, (char *) &exec_done_display_p, | |
2123 | "Set notification of completion for asynchronous execution commands.\n\ | |
2124 | Use \"on\" to enable the notification, and \"off\" to disable it.", &setlist), | |
2125 | &showlist); | |
2126 | } | |
9e0b60a8 | 2127 | } |