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104c1213 | 1 | /* User Interface Events. |
349c5d5f AC |
2 | |
3 | Copyright 1999, 2001, 2002 Free Software Foundation, Inc. | |
104c1213 JM |
4 | |
5 | Contributed by Cygnus Solutions. | |
6 | ||
afbfc876 | 7 | This file is part of GDB. |
104c1213 | 8 | |
afbfc876 AC |
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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
104c1213 | 13 | |
afbfc876 AC |
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. | |
104c1213 | 18 | |
afbfc876 AC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
104c1213 JM |
22 | |
23 | /* Work in progress */ | |
24 | ||
25 | /* This file was created with the aid of ``gdb-events.sh''. | |
26 | ||
27 | The bourn shell script ``gdb-events.sh'' creates the files | |
28 | ``new-gdb-events.c'' and ``new-gdb-events.h and then compares | |
29 | them against the existing ``gdb-events.[hc]''. Any differences | |
30 | found being reported. | |
31 | ||
32 | If editing this file, please also run gdb-events.sh and merge any | |
33 | changes into that script. Conversely, when making sweeping changes | |
34 | to this file, modifying gdb-events.sh and using its output may | |
35 | prove easier. */ | |
36 | ||
37 | ||
38 | #include "defs.h" | |
39 | #include "gdb-events.h" | |
40 | #include "gdbcmd.h" | |
41 | ||
104c1213 JM |
42 | #if WITH_GDB_EVENTS |
43 | static struct gdb_events null_event_hooks; | |
44 | static struct gdb_events queue_event_hooks; | |
45 | static struct gdb_events *current_event_hooks = &null_event_hooks; | |
46 | #endif | |
47 | ||
48 | int gdb_events_debug; | |
49 | ||
50 | #if WITH_GDB_EVENTS | |
51 | ||
52 | void | |
53 | breakpoint_create_event (int b) | |
54 | { | |
55 | if (gdb_events_debug) | |
56 | fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n"); | |
57 | if (!current_event_hooks->breakpoint_create) | |
58 | return; | |
59 | current_event_hooks->breakpoint_create (b); | |
60 | } | |
61 | ||
62 | void | |
63 | breakpoint_delete_event (int b) | |
64 | { | |
65 | if (gdb_events_debug) | |
66 | fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n"); | |
67 | if (!current_event_hooks->breakpoint_delete) | |
68 | return; | |
69 | current_event_hooks->breakpoint_delete (b); | |
70 | } | |
71 | ||
72 | void | |
73 | breakpoint_modify_event (int b) | |
74 | { | |
75 | if (gdb_events_debug) | |
76 | fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n"); | |
77 | if (!current_event_hooks->breakpoint_modify) | |
78 | return; | |
79 | current_event_hooks->breakpoint_modify (b); | |
80 | } | |
81 | ||
ba9fe036 KS |
82 | void |
83 | tracepoint_create_event (int number) | |
84 | { | |
85 | if (gdb_events_debug) | |
86 | fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n"); | |
87 | if (!current_event_hooks->tracepoint_create) | |
88 | return; | |
89 | current_event_hooks->tracepoint_create (number); | |
90 | } | |
91 | ||
92 | void | |
93 | tracepoint_delete_event (int number) | |
94 | { | |
95 | if (gdb_events_debug) | |
96 | fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n"); | |
97 | if (!current_event_hooks->tracepoint_delete) | |
98 | return; | |
99 | current_event_hooks->tracepoint_delete (number); | |
100 | } | |
101 | ||
102 | void | |
103 | tracepoint_modify_event (int number) | |
104 | { | |
105 | if (gdb_events_debug) | |
106 | fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n"); | |
107 | if (!current_event_hooks->tracepoint_modify) | |
108 | return; | |
109 | current_event_hooks->tracepoint_modify (number); | |
110 | } | |
111 | ||
67c2c32c KS |
112 | void |
113 | architecture_changed_event (void) | |
114 | { | |
115 | if (gdb_events_debug) | |
116 | fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n"); | |
117 | if (!current_event_hooks->architecture_changed) | |
118 | return; | |
119 | current_event_hooks->architecture_changed (); | |
120 | } | |
121 | ||
e23792cc KS |
122 | void |
123 | target_changed_event (void) | |
124 | { | |
125 | if (gdb_events_debug) | |
126 | fprintf_unfiltered (gdb_stdlog, "target_changed_event\n"); | |
127 | if (!current_event_hooks->target_changed) | |
128 | return; | |
129 | current_event_hooks->target_changed (); | |
130 | } | |
131 | ||
104c1213 JM |
132 | #endif |
133 | ||
134 | #if WITH_GDB_EVENTS | |
ed9a39eb | 135 | struct gdb_events * |
104c1213 JM |
136 | set_gdb_event_hooks (struct gdb_events *vector) |
137 | { | |
ed9a39eb | 138 | struct gdb_events *old_events = current_event_hooks; |
104c1213 JM |
139 | if (vector == NULL) |
140 | current_event_hooks = &queue_event_hooks; | |
141 | else | |
142 | current_event_hooks = vector; | |
ed9a39eb | 143 | return old_events; |
104c1213 JM |
144 | } |
145 | #endif | |
146 | ||
63d022e0 KS |
147 | #if WITH_GDB_EVENTS |
148 | void | |
149 | clear_gdb_event_hooks (void) | |
150 | { | |
151 | set_gdb_event_hooks (&null_event_hooks); | |
152 | } | |
153 | #endif | |
154 | ||
104c1213 | 155 | enum gdb_event |
afbfc876 AC |
156 | { |
157 | breakpoint_create, | |
158 | breakpoint_delete, | |
159 | breakpoint_modify, | |
ba9fe036 KS |
160 | tracepoint_create, |
161 | tracepoint_delete, | |
162 | tracepoint_modify, | |
67c2c32c | 163 | architecture_changed, |
e23792cc | 164 | target_changed, |
afbfc876 AC |
165 | nr_gdb_events |
166 | }; | |
104c1213 JM |
167 | |
168 | struct breakpoint_create | |
169 | { | |
170 | int b; | |
171 | }; | |
172 | ||
173 | struct breakpoint_delete | |
174 | { | |
175 | int b; | |
176 | }; | |
177 | ||
178 | struct breakpoint_modify | |
179 | { | |
180 | int b; | |
181 | }; | |
182 | ||
ba9fe036 KS |
183 | struct tracepoint_create |
184 | { | |
185 | int number; | |
186 | }; | |
187 | ||
188 | struct tracepoint_delete | |
189 | { | |
190 | int number; | |
191 | }; | |
192 | ||
193 | struct tracepoint_modify | |
194 | { | |
195 | int number; | |
196 | }; | |
197 | ||
104c1213 JM |
198 | struct event |
199 | { | |
200 | enum gdb_event type; | |
201 | struct event *next; | |
202 | union | |
203 | { | |
afbfc876 AC |
204 | struct breakpoint_create breakpoint_create; |
205 | struct breakpoint_delete breakpoint_delete; | |
206 | struct breakpoint_modify breakpoint_modify; | |
ba9fe036 KS |
207 | struct tracepoint_create tracepoint_create; |
208 | struct tracepoint_delete tracepoint_delete; | |
209 | struct tracepoint_modify tracepoint_modify; | |
104c1213 JM |
210 | } |
211 | data; | |
212 | }; | |
213 | struct event *pending_events; | |
214 | struct event *delivering_events; | |
215 | ||
216 | static void | |
217 | append (struct event *new_event) | |
218 | { | |
219 | struct event **event = &pending_events; | |
220 | while ((*event) != NULL) | |
221 | event = &((*event)->next); | |
222 | (*event) = new_event; | |
223 | (*event)->next = NULL; | |
224 | } | |
225 | ||
226 | static void | |
227 | queue_breakpoint_create (int b) | |
228 | { | |
229 | struct event *event = XMALLOC (struct event); | |
230 | event->type = breakpoint_create; | |
231 | event->data.breakpoint_create.b = b; | |
232 | append (event); | |
233 | } | |
234 | ||
235 | static void | |
236 | queue_breakpoint_delete (int b) | |
237 | { | |
238 | struct event *event = XMALLOC (struct event); | |
239 | event->type = breakpoint_delete; | |
240 | event->data.breakpoint_delete.b = b; | |
241 | append (event); | |
242 | } | |
243 | ||
244 | static void | |
245 | queue_breakpoint_modify (int b) | |
246 | { | |
247 | struct event *event = XMALLOC (struct event); | |
248 | event->type = breakpoint_modify; | |
249 | event->data.breakpoint_modify.b = b; | |
250 | append (event); | |
251 | } | |
252 | ||
ba9fe036 KS |
253 | static void |
254 | queue_tracepoint_create (int number) | |
255 | { | |
256 | struct event *event = XMALLOC (struct event); | |
257 | event->type = tracepoint_create; | |
258 | event->data.tracepoint_create.number = number; | |
259 | append (event); | |
260 | } | |
261 | ||
262 | static void | |
263 | queue_tracepoint_delete (int number) | |
264 | { | |
265 | struct event *event = XMALLOC (struct event); | |
266 | event->type = tracepoint_delete; | |
267 | event->data.tracepoint_delete.number = number; | |
268 | append (event); | |
269 | } | |
270 | ||
271 | static void | |
272 | queue_tracepoint_modify (int number) | |
273 | { | |
274 | struct event *event = XMALLOC (struct event); | |
275 | event->type = tracepoint_modify; | |
276 | event->data.tracepoint_modify.number = number; | |
277 | append (event); | |
278 | } | |
279 | ||
67c2c32c KS |
280 | static void |
281 | queue_architecture_changed (void) | |
282 | { | |
283 | struct event *event = XMALLOC (struct event); | |
284 | event->type = architecture_changed; | |
285 | append (event); | |
286 | } | |
287 | ||
e23792cc KS |
288 | static void |
289 | queue_target_changed (void) | |
290 | { | |
291 | struct event *event = XMALLOC (struct event); | |
292 | event->type = target_changed; | |
293 | append (event); | |
294 | } | |
295 | ||
104c1213 JM |
296 | void |
297 | gdb_events_deliver (struct gdb_events *vector) | |
298 | { | |
299 | /* Just zap any events left around from last time. */ | |
300 | while (delivering_events != NULL) | |
301 | { | |
302 | struct event *event = delivering_events; | |
303 | delivering_events = event->next; | |
b8c9b27d | 304 | xfree (event); |
104c1213 JM |
305 | } |
306 | /* Process any pending events. Because one of the deliveries could | |
307 | bail out we move everything off of the pending queue onto an | |
308 | in-progress queue where it can, later, be cleaned up if | |
309 | necessary. */ | |
310 | delivering_events = pending_events; | |
311 | pending_events = NULL; | |
312 | while (delivering_events != NULL) | |
313 | { | |
314 | struct event *event = delivering_events; | |
315 | switch (event->type) | |
afbfc876 AC |
316 | { |
317 | case breakpoint_create: | |
318 | vector->breakpoint_create | |
319 | (event->data.breakpoint_create.b); | |
320 | break; | |
321 | case breakpoint_delete: | |
322 | vector->breakpoint_delete | |
323 | (event->data.breakpoint_delete.b); | |
324 | break; | |
325 | case breakpoint_modify: | |
326 | vector->breakpoint_modify | |
327 | (event->data.breakpoint_modify.b); | |
328 | break; | |
ba9fe036 KS |
329 | case tracepoint_create: |
330 | vector->tracepoint_create | |
331 | (event->data.tracepoint_create.number); | |
332 | break; | |
333 | case tracepoint_delete: | |
334 | vector->tracepoint_delete | |
335 | (event->data.tracepoint_delete.number); | |
336 | break; | |
337 | case tracepoint_modify: | |
338 | vector->tracepoint_modify | |
339 | (event->data.tracepoint_modify.number); | |
340 | break; | |
67c2c32c KS |
341 | case architecture_changed: |
342 | vector->architecture_changed (); | |
343 | break; | |
e23792cc KS |
344 | case target_changed: |
345 | vector->target_changed (); | |
346 | break; | |
afbfc876 | 347 | } |
104c1213 | 348 | delivering_events = event->next; |
b8c9b27d | 349 | xfree (event); |
104c1213 JM |
350 | } |
351 | } | |
352 | ||
353 | void _initialize_gdb_events (void); | |
354 | void | |
355 | _initialize_gdb_events (void) | |
356 | { | |
5d161b24 | 357 | struct cmd_list_element *c; |
104c1213 JM |
358 | #if WITH_GDB_EVENTS |
359 | queue_event_hooks.breakpoint_create = queue_breakpoint_create; | |
360 | queue_event_hooks.breakpoint_delete = queue_breakpoint_delete; | |
361 | queue_event_hooks.breakpoint_modify = queue_breakpoint_modify; | |
ba9fe036 KS |
362 | queue_event_hooks.tracepoint_create = queue_tracepoint_create; |
363 | queue_event_hooks.tracepoint_delete = queue_tracepoint_delete; | |
364 | queue_event_hooks.tracepoint_modify = queue_tracepoint_modify; | |
67c2c32c | 365 | queue_event_hooks.architecture_changed = queue_architecture_changed; |
e23792cc | 366 | queue_event_hooks.target_changed = queue_target_changed; |
afbfc876 | 367 | #endif |
5d161b24 | 368 | |
afbfc876 AC |
369 | c = add_set_cmd ("eventdebug", class_maintenance, var_zinteger, |
370 | (char *) (&gdb_events_debug), "Set event debugging.\n\ | |
5d161b24 | 371 | When non-zero, event/notify debugging is enabled.", &setlist); |
afbfc876 AC |
372 | deprecate_cmd (c, "set debug event"); |
373 | deprecate_cmd (add_show_from_set (c, &showlist), "show debug event"); | |
5d161b24 DB |
374 | |
375 | add_show_from_set (add_set_cmd ("event", | |
afbfc876 AC |
376 | class_maintenance, |
377 | var_zinteger, | |
378 | (char *) (&gdb_events_debug), | |
379 | "Set event debugging.\n\ | |
5d161b24 | 380 | When non-zero, event/notify debugging is enabled.", &setdebuglist), |
afbfc876 | 381 | &showdebuglist); |
104c1213 | 382 | } |