Commit | Line | Data |
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104c1213 | 1 | /* User Interface Events. |
349c5d5f | 2 | |
85c07804 AC |
3 | Copyright 1999, 2001, 2002, 2004, 2005 Free Software Foundation, |
4 | Inc. | |
104c1213 JM |
5 | |
6 | Contributed by Cygnus Solutions. | |
7 | ||
afbfc876 | 8 | This file is part of GDB. |
104c1213 | 9 | |
afbfc876 AC |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
104c1213 | 14 | |
afbfc876 AC |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
104c1213 | 19 | |
afbfc876 AC |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software | |
11dced61 | 22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
104c1213 JM |
23 | |
24 | /* Work in progress */ | |
25 | ||
26 | /* This file was created with the aid of ``gdb-events.sh''. | |
27 | ||
28 | The bourn shell script ``gdb-events.sh'' creates the files | |
29 | ``new-gdb-events.c'' and ``new-gdb-events.h and then compares | |
30 | them against the existing ``gdb-events.[hc]''. Any differences | |
31 | found being reported. | |
32 | ||
33 | If editing this file, please also run gdb-events.sh and merge any | |
34 | changes into that script. Conversely, when making sweeping changes | |
35 | to this file, modifying gdb-events.sh and using its output may | |
30867156 | 36 | prove easier. */ |
104c1213 JM |
37 | |
38 | ||
39 | #include "defs.h" | |
40 | #include "gdb-events.h" | |
41 | #include "gdbcmd.h" | |
42 | ||
104c1213 JM |
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; | |
104c1213 JM |
46 | |
47 | int gdb_events_debug; | |
920d2a44 AC |
48 | static void |
49 | show_gdb_events_debug (struct ui_file *file, int from_tty, | |
50 | struct cmd_list_element *c, const char *value) | |
51 | { | |
52 | fprintf_filtered (file, _("Event debugging is %s.\n"), value); | |
53 | } | |
54 | ||
104c1213 | 55 | |
104c1213 JM |
56 | void |
57 | breakpoint_create_event (int b) | |
58 | { | |
59 | if (gdb_events_debug) | |
60 | fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n"); | |
61 | if (!current_event_hooks->breakpoint_create) | |
62 | return; | |
63 | current_event_hooks->breakpoint_create (b); | |
64 | } | |
65 | ||
66 | void | |
67 | breakpoint_delete_event (int b) | |
68 | { | |
69 | if (gdb_events_debug) | |
70 | fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n"); | |
71 | if (!current_event_hooks->breakpoint_delete) | |
72 | return; | |
73 | current_event_hooks->breakpoint_delete (b); | |
74 | } | |
75 | ||
76 | void | |
77 | breakpoint_modify_event (int b) | |
78 | { | |
79 | if (gdb_events_debug) | |
80 | fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n"); | |
81 | if (!current_event_hooks->breakpoint_modify) | |
82 | return; | |
83 | current_event_hooks->breakpoint_modify (b); | |
84 | } | |
85 | ||
ba9fe036 KS |
86 | void |
87 | tracepoint_create_event (int number) | |
88 | { | |
89 | if (gdb_events_debug) | |
90 | fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n"); | |
91 | if (!current_event_hooks->tracepoint_create) | |
92 | return; | |
93 | current_event_hooks->tracepoint_create (number); | |
94 | } | |
95 | ||
96 | void | |
97 | tracepoint_delete_event (int number) | |
98 | { | |
99 | if (gdb_events_debug) | |
100 | fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n"); | |
101 | if (!current_event_hooks->tracepoint_delete) | |
102 | return; | |
103 | current_event_hooks->tracepoint_delete (number); | |
104 | } | |
105 | ||
106 | void | |
107 | tracepoint_modify_event (int number) | |
108 | { | |
109 | if (gdb_events_debug) | |
110 | fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n"); | |
111 | if (!current_event_hooks->tracepoint_modify) | |
112 | return; | |
113 | current_event_hooks->tracepoint_modify (number); | |
114 | } | |
115 | ||
67c2c32c KS |
116 | void |
117 | architecture_changed_event (void) | |
118 | { | |
119 | if (gdb_events_debug) | |
120 | fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n"); | |
121 | if (!current_event_hooks->architecture_changed) | |
122 | return; | |
123 | current_event_hooks->architecture_changed (); | |
124 | } | |
125 | ||
ed9a39eb | 126 | struct gdb_events * |
2726dafc | 127 | deprecated_set_gdb_event_hooks (struct gdb_events *vector) |
104c1213 | 128 | { |
ed9a39eb | 129 | struct gdb_events *old_events = current_event_hooks; |
104c1213 JM |
130 | if (vector == NULL) |
131 | current_event_hooks = &queue_event_hooks; | |
132 | else | |
133 | current_event_hooks = vector; | |
ed9a39eb | 134 | return old_events; |
104c1213 | 135 | } |
104c1213 | 136 | |
63d022e0 KS |
137 | void |
138 | clear_gdb_event_hooks (void) | |
139 | { | |
2726dafc | 140 | deprecated_set_gdb_event_hooks (&null_event_hooks); |
63d022e0 | 141 | } |
63d022e0 | 142 | |
104c1213 | 143 | enum gdb_event |
afbfc876 AC |
144 | { |
145 | breakpoint_create, | |
146 | breakpoint_delete, | |
147 | breakpoint_modify, | |
ba9fe036 KS |
148 | tracepoint_create, |
149 | tracepoint_delete, | |
150 | tracepoint_modify, | |
67c2c32c | 151 | architecture_changed, |
afbfc876 AC |
152 | nr_gdb_events |
153 | }; | |
104c1213 JM |
154 | |
155 | struct breakpoint_create | |
156 | { | |
157 | int b; | |
158 | }; | |
159 | ||
160 | struct breakpoint_delete | |
161 | { | |
162 | int b; | |
163 | }; | |
164 | ||
165 | struct breakpoint_modify | |
166 | { | |
167 | int b; | |
168 | }; | |
169 | ||
ba9fe036 KS |
170 | struct tracepoint_create |
171 | { | |
172 | int number; | |
173 | }; | |
174 | ||
175 | struct tracepoint_delete | |
176 | { | |
177 | int number; | |
178 | }; | |
179 | ||
180 | struct tracepoint_modify | |
181 | { | |
182 | int number; | |
183 | }; | |
184 | ||
104c1213 JM |
185 | struct event |
186 | { | |
187 | enum gdb_event type; | |
188 | struct event *next; | |
189 | union | |
190 | { | |
afbfc876 AC |
191 | struct breakpoint_create breakpoint_create; |
192 | struct breakpoint_delete breakpoint_delete; | |
193 | struct breakpoint_modify breakpoint_modify; | |
ba9fe036 KS |
194 | struct tracepoint_create tracepoint_create; |
195 | struct tracepoint_delete tracepoint_delete; | |
196 | struct tracepoint_modify tracepoint_modify; | |
104c1213 JM |
197 | } |
198 | data; | |
199 | }; | |
200 | struct event *pending_events; | |
201 | struct event *delivering_events; | |
202 | ||
203 | static void | |
204 | append (struct event *new_event) | |
205 | { | |
206 | struct event **event = &pending_events; | |
207 | while ((*event) != NULL) | |
208 | event = &((*event)->next); | |
209 | (*event) = new_event; | |
210 | (*event)->next = NULL; | |
211 | } | |
212 | ||
213 | static void | |
214 | queue_breakpoint_create (int b) | |
215 | { | |
216 | struct event *event = XMALLOC (struct event); | |
217 | event->type = breakpoint_create; | |
218 | event->data.breakpoint_create.b = b; | |
219 | append (event); | |
220 | } | |
221 | ||
222 | static void | |
223 | queue_breakpoint_delete (int b) | |
224 | { | |
225 | struct event *event = XMALLOC (struct event); | |
226 | event->type = breakpoint_delete; | |
227 | event->data.breakpoint_delete.b = b; | |
228 | append (event); | |
229 | } | |
230 | ||
231 | static void | |
232 | queue_breakpoint_modify (int b) | |
233 | { | |
234 | struct event *event = XMALLOC (struct event); | |
235 | event->type = breakpoint_modify; | |
236 | event->data.breakpoint_modify.b = b; | |
237 | append (event); | |
238 | } | |
239 | ||
ba9fe036 KS |
240 | static void |
241 | queue_tracepoint_create (int number) | |
242 | { | |
243 | struct event *event = XMALLOC (struct event); | |
244 | event->type = tracepoint_create; | |
245 | event->data.tracepoint_create.number = number; | |
246 | append (event); | |
247 | } | |
248 | ||
249 | static void | |
250 | queue_tracepoint_delete (int number) | |
251 | { | |
252 | struct event *event = XMALLOC (struct event); | |
253 | event->type = tracepoint_delete; | |
254 | event->data.tracepoint_delete.number = number; | |
255 | append (event); | |
256 | } | |
257 | ||
258 | static void | |
259 | queue_tracepoint_modify (int number) | |
260 | { | |
261 | struct event *event = XMALLOC (struct event); | |
262 | event->type = tracepoint_modify; | |
263 | event->data.tracepoint_modify.number = number; | |
264 | append (event); | |
265 | } | |
266 | ||
67c2c32c KS |
267 | static void |
268 | queue_architecture_changed (void) | |
269 | { | |
270 | struct event *event = XMALLOC (struct event); | |
271 | event->type = architecture_changed; | |
272 | append (event); | |
273 | } | |
274 | ||
104c1213 JM |
275 | void |
276 | gdb_events_deliver (struct gdb_events *vector) | |
277 | { | |
278 | /* Just zap any events left around from last time. */ | |
279 | while (delivering_events != NULL) | |
280 | { | |
281 | struct event *event = delivering_events; | |
282 | delivering_events = event->next; | |
b8c9b27d | 283 | xfree (event); |
104c1213 JM |
284 | } |
285 | /* Process any pending events. Because one of the deliveries could | |
286 | bail out we move everything off of the pending queue onto an | |
287 | in-progress queue where it can, later, be cleaned up if | |
288 | necessary. */ | |
289 | delivering_events = pending_events; | |
290 | pending_events = NULL; | |
291 | while (delivering_events != NULL) | |
292 | { | |
293 | struct event *event = delivering_events; | |
294 | switch (event->type) | |
afbfc876 AC |
295 | { |
296 | case breakpoint_create: | |
297 | vector->breakpoint_create | |
298 | (event->data.breakpoint_create.b); | |
299 | break; | |
300 | case breakpoint_delete: | |
301 | vector->breakpoint_delete | |
302 | (event->data.breakpoint_delete.b); | |
303 | break; | |
304 | case breakpoint_modify: | |
305 | vector->breakpoint_modify | |
306 | (event->data.breakpoint_modify.b); | |
307 | break; | |
ba9fe036 KS |
308 | case tracepoint_create: |
309 | vector->tracepoint_create | |
310 | (event->data.tracepoint_create.number); | |
311 | break; | |
312 | case tracepoint_delete: | |
313 | vector->tracepoint_delete | |
314 | (event->data.tracepoint_delete.number); | |
315 | break; | |
316 | case tracepoint_modify: | |
317 | vector->tracepoint_modify | |
318 | (event->data.tracepoint_modify.number); | |
319 | break; | |
67c2c32c KS |
320 | case architecture_changed: |
321 | vector->architecture_changed (); | |
322 | break; | |
afbfc876 | 323 | } |
104c1213 | 324 | delivering_events = event->next; |
b8c9b27d | 325 | xfree (event); |
104c1213 JM |
326 | } |
327 | } | |
328 | ||
329 | void _initialize_gdb_events (void); | |
330 | void | |
331 | _initialize_gdb_events (void) | |
332 | { | |
5d161b24 | 333 | struct cmd_list_element *c; |
104c1213 JM |
334 | queue_event_hooks.breakpoint_create = queue_breakpoint_create; |
335 | queue_event_hooks.breakpoint_delete = queue_breakpoint_delete; | |
336 | queue_event_hooks.breakpoint_modify = queue_breakpoint_modify; | |
ba9fe036 KS |
337 | queue_event_hooks.tracepoint_create = queue_tracepoint_create; |
338 | queue_event_hooks.tracepoint_delete = queue_tracepoint_delete; | |
339 | queue_event_hooks.tracepoint_modify = queue_tracepoint_modify; | |
67c2c32c | 340 | queue_event_hooks.architecture_changed = queue_architecture_changed; |
5d161b24 | 341 | |
85c07804 AC |
342 | add_setshow_zinteger_cmd ("event", class_maintenance, |
343 | &gdb_events_debug, _("\ | |
344 | Set event debugging."), _("\ | |
345 | Show event debugging."), _("\ | |
346 | When non-zero, event/notify debugging is enabled."), | |
347 | NULL, | |
920d2a44 | 348 | show_gdb_events_debug, |
85c07804 | 349 | &setdebuglist, &showdebuglist); |
104c1213 | 350 | } |