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b85e4829 AC |
1 | /* The common simulator framework for GDB, the GNU Debugger. |
2 | ||
1d506c26 | 3 | Copyright 2002-2024 Free Software Foundation, Inc. |
b85e4829 AC |
4 | |
5 | Contributed by Andrew Cagney and Red Hat. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
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 | |
4744ac1b | 11 | the Free Software Foundation; either version 3 of the License, or |
b85e4829 AC |
12 | (at your option) any later version. |
13 | ||
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. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
4744ac1b | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | ||
23 | #ifndef _SIM_EVENTS_C_ | |
24 | #define _SIM_EVENTS_C_ | |
25 | ||
6df01ab8 MF |
26 | /* This must come before any other includes. */ |
27 | #include "defs.h" | |
28 | ||
20a8e078 | 29 | #include <signal.h> /* For SIGPROCMASK et al. */ |
2c29882f | 30 | #include <stdarg.h> |
20a8e078 MF |
31 | #include <stdlib.h> |
32 | #include <string.h> | |
33 | ||
34 | #include "libiberty.h" | |
35 | ||
c906108c SS |
36 | #include "sim-main.h" |
37 | #include "sim-assert.h" | |
4c0d76b9 | 38 | #include "sim-cpu.h" |
c906108c | 39 | |
c906108c SS |
40 | typedef enum { |
41 | watch_invalid, | |
42 | ||
43 | /* core - target byte order */ | |
44 | watch_core_targ_1, | |
45 | watch_core_targ_2, | |
46 | watch_core_targ_4, | |
47 | watch_core_targ_8, | |
48 | /* core - big-endian */ | |
49 | watch_core_be_1, | |
50 | watch_core_be_2, | |
51 | watch_core_be_4, | |
52 | watch_core_be_8, | |
53 | /* core - little-endian */ | |
54 | watch_core_le_1, | |
55 | watch_core_le_2, | |
56 | watch_core_le_4, | |
57 | watch_core_le_8, | |
58 | ||
59 | /* sim - host byte order */ | |
60 | watch_sim_host_1, | |
61 | watch_sim_host_2, | |
62 | watch_sim_host_4, | |
63 | watch_sim_host_8, | |
64 | /* sim - big-endian */ | |
65 | watch_sim_be_1, | |
66 | watch_sim_be_2, | |
67 | watch_sim_be_4, | |
68 | watch_sim_be_8, | |
69 | /* sim - little-endian */ | |
70 | watch_sim_le_1, | |
71 | watch_sim_le_2, | |
72 | watch_sim_le_4, | |
73 | watch_sim_le_8, | |
028f6515 | 74 | |
4c0d76b9 MF |
75 | /* pc */ |
76 | watch_pc, | |
77 | ||
c906108c SS |
78 | /* wallclock */ |
79 | watch_clock, | |
80 | ||
81 | /* timer */ | |
82 | watch_timer, | |
83 | } sim_event_watchpoints; | |
84 | ||
85 | ||
86 | struct _sim_event { | |
87 | sim_event_watchpoints watching; | |
88 | void *data; | |
89 | sim_event_handler *handler; | |
90 | /* timer event */ | |
e4c803f5 | 91 | int64_t time_of_event; |
c906108c SS |
92 | /* watch wallclock event */ |
93 | unsigned wallclock; | |
94 | /* watch core address */ | |
95 | address_word core_addr; | |
96 | unsigned core_map; | |
97 | /* watch sim addr */ | |
98 | void *host_addr; | |
99 | /* watch core/sim range */ | |
100 | int is_within; /* 0/1 */ | |
101 | unsigned ub; | |
102 | unsigned lb; | |
e4c803f5 MF |
103 | uint64_t ub64; |
104 | uint64_t lb64; | |
c906108c SS |
105 | /* trace info (if any) */ |
106 | char *trace; | |
107 | /* list */ | |
108 | sim_event *next; | |
109 | }; | |
110 | ||
111 | ||
112 | /* The event queue maintains a single absolute time using two | |
113 | variables. | |
028f6515 | 114 | |
c906108c | 115 | TIME_OF_EVENT: this holds the time at which the next event is ment |
6439295f | 116 | to occur. If no next event it will hold the time of the last |
c906108c SS |
117 | event. |
118 | ||
119 | TIME_FROM_EVENT: The current distance from TIME_OF_EVENT. A value | |
120 | <= 0 (except when poll-event is being processed) indicates that | |
121 | event processing is due. This variable is decremented once for | |
122 | each iteration of a clock cycle. | |
123 | ||
124 | Initially, the clock is started at time one (0) with TIME_OF_EVENT | |
125 | == 0 and TIME_FROM_EVENT == 0 and with NR_TICKS_TO_PROCESS == 1. | |
126 | ||
127 | Clearly there is a bug in that this code assumes that the absolute | |
128 | time counter will never become greater than 2^62. | |
129 | ||
130 | To avoid the need to use 64bit arithmetic, the event queue always | |
131 | contains at least one event scheduled every 16 000 ticks. This | |
132 | limits the time from event counter to values less than | |
133 | 16 000. */ | |
134 | ||
135 | ||
136 | #if !defined (SIM_EVENTS_POLL_RATE) | |
137 | #define SIM_EVENTS_POLL_RATE 0x1000 | |
138 | #endif | |
139 | ||
140 | ||
141 | #define _ETRACE sd, NULL | |
142 | ||
c906108c SS |
143 | #undef ETRACE |
144 | #define ETRACE(ARGS) \ | |
145 | do \ | |
146 | { \ | |
83034798 | 147 | if (STRACE_EVENTS_P (sd)) \ |
c906108c SS |
148 | { \ |
149 | if (STRACE_DEBUG_P (sd)) \ | |
e7505490 | 150 | trace_printf (sd, NULL, "%s:%d: ", lbasename (__FILE__), __LINE__); \ |
c906108c SS |
151 | trace_printf ARGS; \ |
152 | } \ | |
153 | } \ | |
154 | while (0) | |
155 | ||
156 | ||
157 | /* event queue iterator - don't iterate over the held queue. */ | |
158 | ||
159 | #if EXTERN_SIM_EVENTS_P | |
160 | static sim_event ** | |
161 | next_event_queue (SIM_DESC sd, | |
162 | sim_event **queue) | |
163 | { | |
164 | if (queue == NULL) | |
165 | return &STATE_EVENTS (sd)->queue; | |
166 | else if (queue == &STATE_EVENTS (sd)->queue) | |
167 | return &STATE_EVENTS (sd)->watchpoints; | |
168 | else if (queue == &STATE_EVENTS (sd)->watchpoints) | |
169 | return &STATE_EVENTS (sd)->watchedpoints; | |
170 | else if (queue == &STATE_EVENTS (sd)->watchedpoints) | |
171 | return NULL; | |
172 | else | |
173 | sim_io_error (sd, "next_event_queue - bad queue"); | |
174 | return NULL; | |
175 | } | |
176 | #endif | |
177 | ||
178 | ||
179 | STATIC_INLINE_SIM_EVENTS\ | |
180 | (void) | |
181 | sim_events_poll (SIM_DESC sd, | |
182 | void *data) | |
183 | { | |
184 | /* just re-schedule in 1000 million ticks time */ | |
185 | sim_events_schedule (sd, SIM_EVENTS_POLL_RATE, sim_events_poll, sd); | |
186 | sim_io_poll_quit (sd); | |
187 | } | |
188 | ||
189 | ||
190 | /* "events" module install handler. | |
191 | This is called via sim_module_install to install the "events" subsystem | |
192 | into the simulator. */ | |
193 | ||
194 | #if EXTERN_SIM_EVENTS_P | |
195 | STATIC_SIM_EVENTS (MODULE_UNINSTALL_FN) sim_events_uninstall; | |
196 | STATIC_SIM_EVENTS (MODULE_INIT_FN) sim_events_init; | |
197 | STATIC_SIM_EVENTS (MODULE_RESUME_FN) sim_events_resume; | |
198 | STATIC_SIM_EVENTS (MODULE_SUSPEND_FN) sim_events_suspend; | |
199 | #endif | |
200 | ||
201 | #if EXTERN_SIM_EVENTS_P | |
202 | SIM_RC | |
203 | sim_events_install (SIM_DESC sd) | |
204 | { | |
205 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
206 | sim_module_add_uninstall_fn (sd, sim_events_uninstall); | |
207 | sim_module_add_init_fn (sd, sim_events_init); | |
208 | sim_module_add_resume_fn (sd, sim_events_resume); | |
209 | sim_module_add_suspend_fn (sd, sim_events_suspend); | |
210 | return SIM_RC_OK; | |
211 | } | |
212 | #endif | |
213 | ||
214 | ||
215 | /* Suspend/resume the event queue manager when the simulator is not | |
216 | running */ | |
217 | ||
218 | #if EXTERN_SIM_EVENTS_P | |
219 | static SIM_RC | |
220 | sim_events_resume (SIM_DESC sd) | |
221 | { | |
222 | sim_events *events = STATE_EVENTS (sd); | |
223 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
224 | SIM_ASSERT (events->resume_wallclock == 0); | |
225 | events->resume_wallclock = sim_elapsed_time_get (); | |
226 | return SIM_RC_OK; | |
227 | } | |
228 | #endif | |
229 | ||
230 | #if EXTERN_SIM_EVENTS_P | |
231 | static SIM_RC | |
232 | sim_events_suspend (SIM_DESC sd) | |
233 | { | |
234 | sim_events *events = STATE_EVENTS (sd); | |
235 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
236 | SIM_ASSERT (events->resume_wallclock != 0); | |
237 | events->elapsed_wallclock += sim_elapsed_time_since (events->resume_wallclock); | |
238 | events->resume_wallclock = 0; | |
239 | return SIM_RC_OK; | |
240 | } | |
241 | #endif | |
242 | ||
243 | ||
244 | /* Uninstall the "events" subsystem from the simulator. */ | |
245 | ||
246 | #if EXTERN_SIM_EVENTS_P | |
247 | static void | |
248 | sim_events_uninstall (SIM_DESC sd) | |
249 | { | |
250 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
251 | /* FIXME: free buffers, etc. */ | |
252 | } | |
253 | #endif | |
254 | ||
255 | ||
256 | /* malloc/free */ | |
257 | ||
258 | #if EXTERN_SIM_EVENTS_P | |
259 | static sim_event * | |
260 | sim_events_zalloc (SIM_DESC sd) | |
261 | { | |
262 | sim_events *events = STATE_EVENTS (sd); | |
263 | sim_event *new = events->free_list; | |
264 | if (new != NULL) | |
265 | { | |
266 | events->free_list = new->next; | |
267 | memset (new, 0, sizeof (*new)); | |
268 | } | |
269 | else | |
270 | { | |
271 | #if defined (HAVE_SIGPROCMASK) && defined (SIG_SETMASK) | |
272 | /*-LOCK-*/ | |
273 | sigset_t old_mask; | |
274 | sigset_t new_mask; | |
34b47c38 | 275 | sigfillset (&new_mask); |
c906108c SS |
276 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); |
277 | #endif | |
278 | new = ZALLOC (sim_event); | |
279 | #if defined (HAVE_SIGPROCMASK) && defined (SIG_SETMASK) | |
280 | /*-UNLOCK-*/ | |
281 | sigprocmask (SIG_SETMASK, &old_mask, NULL); | |
282 | #endif | |
283 | } | |
284 | return new; | |
285 | } | |
286 | #endif | |
287 | ||
288 | STATIC_INLINE_SIM_EVENTS\ | |
289 | (void) | |
290 | sim_events_free (SIM_DESC sd, | |
291 | sim_event *dead) | |
292 | { | |
293 | sim_events *events = STATE_EVENTS (sd); | |
294 | dead->next = events->free_list; | |
295 | events->free_list = dead; | |
296 | if (dead->trace != NULL) | |
297 | { | |
298 | free (dead->trace); /* NB: asprintf returns a `free' buf */ | |
299 | dead->trace = NULL; | |
300 | } | |
301 | } | |
302 | ||
303 | ||
304 | /* Initialize the simulator event manager */ | |
305 | ||
306 | #if EXTERN_SIM_EVENTS_P | |
307 | SIM_RC | |
308 | sim_events_init (SIM_DESC sd) | |
309 | { | |
310 | sim_events *events = STATE_EVENTS (sd); | |
311 | ||
312 | /* drain the interrupt queue */ | |
313 | events->nr_held = 0; | |
314 | if (events->held == NULL) | |
315 | events->held = NZALLOC (sim_event, MAX_NR_SIGNAL_SIM_EVENTS); | |
316 | ||
317 | /* drain the normal queues */ | |
318 | { | |
319 | sim_event **queue = NULL; | |
320 | while ((queue = next_event_queue (sd, queue)) != NULL) | |
321 | { | |
322 | if (queue == NULL) break; | |
323 | while (*queue != NULL) | |
324 | { | |
325 | sim_event *dead = *queue; | |
326 | *queue = dead->next; | |
327 | sim_events_free (sd, dead); | |
328 | } | |
329 | *queue = NULL; | |
330 | } | |
331 | } | |
332 | ||
333 | /* wind time back to zero */ | |
334 | events->nr_ticks_to_process = 1; /* start by doing queue */ | |
335 | events->time_of_event = 0; | |
336 | events->time_from_event = 0; | |
337 | events->elapsed_wallclock = 0; | |
338 | events->resume_wallclock = 0; | |
339 | ||
340 | /* schedule our initial counter event */ | |
341 | sim_events_schedule (sd, 0, sim_events_poll, sd); | |
342 | ||
343 | /* from now on, except when the large-int event is being processed | |
344 | the event queue is non empty */ | |
345 | SIM_ASSERT (events->queue != NULL); | |
346 | ||
347 | return SIM_RC_OK; | |
348 | } | |
349 | #endif | |
350 | ||
351 | ||
352 | INLINE_SIM_EVENTS\ | |
e4c803f5 | 353 | (int64_t) |
c906108c SS |
354 | sim_events_time (SIM_DESC sd) |
355 | { | |
356 | sim_events *events = STATE_EVENTS (sd); | |
357 | return (events->time_of_event - events->time_from_event); | |
358 | } | |
359 | ||
360 | ||
361 | INLINE_SIM_EVENTS\ | |
362 | (unsigned long) | |
363 | sim_events_elapsed_time (SIM_DESC sd) | |
364 | { | |
365 | unsigned long elapsed = STATE_EVENTS (sd)->elapsed_wallclock; | |
366 | ||
367 | /* Are we being called inside sim_resume? | |
368 | (Is there a simulation in progress?) */ | |
369 | if (STATE_EVENTS (sd)->resume_wallclock != 0) | |
370 | elapsed += sim_elapsed_time_since (STATE_EVENTS (sd)->resume_wallclock); | |
371 | ||
372 | return elapsed; | |
373 | } | |
374 | ||
375 | ||
38e64f35 AC |
376 | /* Returns the time that remains before the event is raised. */ |
377 | INLINE_SIM_EVENTS\ | |
e4c803f5 | 378 | (int64_t) |
38e64f35 AC |
379 | sim_events_remain_time (SIM_DESC sd, sim_event *event) |
380 | { | |
381 | if (event == 0) | |
382 | return 0; | |
028f6515 | 383 | |
38e64f35 AC |
384 | return (event->time_of_event - sim_events_time (sd)); |
385 | } | |
386 | ||
387 | ||
388 | ||
c906108c SS |
389 | STATIC_INLINE_SIM_EVENTS\ |
390 | (void) | |
391 | update_time_from_event (SIM_DESC sd) | |
392 | { | |
393 | sim_events *events = STATE_EVENTS (sd); | |
e4c803f5 | 394 | int64_t current_time = sim_events_time (sd); |
c906108c SS |
395 | if (events->queue != NULL) |
396 | { | |
397 | events->time_of_event = events->queue->time_of_event; | |
398 | events->time_from_event = (events->queue->time_of_event - current_time); | |
399 | } | |
400 | else | |
401 | { | |
402 | events->time_of_event = current_time - 1; | |
403 | events->time_from_event = -1; | |
404 | } | |
83034798 | 405 | if (STRACE_EVENTS_P (sd)) |
5eb1a8fa AC |
406 | { |
407 | sim_event *event; | |
408 | int i; | |
409 | for (event = events->queue, i = 0; | |
410 | event != NULL; | |
411 | event = event->next, i++) | |
412 | { | |
413 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
414 | "event time-from-event - " |
415 | "time %" PRIi64 ", delta %" PRIi64 " - " | |
416 | "event %i, tag %p, time %" PRIi64 ", handler %p, data " | |
417 | "%p%s%s\n", | |
418 | current_time, | |
419 | events->time_from_event, | |
5eb1a8fa | 420 | i, |
c704d6e7 MF |
421 | event, |
422 | event->time_of_event, | |
423 | event->handler, | |
424 | event->data, | |
5eb1a8fa AC |
425 | (event->trace != NULL) ? ", " : "", |
426 | (event->trace != NULL) ? event->trace : "")); | |
427 | } | |
428 | } | |
c906108c SS |
429 | SIM_ASSERT (current_time == sim_events_time (sd)); |
430 | } | |
431 | ||
432 | ||
433 | #if EXTERN_SIM_EVENTS_P | |
434 | static void | |
435 | insert_sim_event (SIM_DESC sd, | |
436 | sim_event *new_event, | |
e4c803f5 | 437 | int64_t delta) |
c906108c SS |
438 | { |
439 | sim_events *events = STATE_EVENTS (sd); | |
440 | sim_event *curr; | |
441 | sim_event **prev; | |
e4c803f5 | 442 | int64_t time_of_event; |
c906108c SS |
443 | |
444 | if (delta < 0) | |
445 | sim_io_error (sd, "what is past is past!\n"); | |
028f6515 | 446 | |
6439295f | 447 | /* compute when the event should occur */ |
c906108c | 448 | time_of_event = sim_events_time (sd) + delta; |
028f6515 | 449 | |
c906108c SS |
450 | /* find the queue insertion point - things are time ordered */ |
451 | prev = &events->queue; | |
452 | curr = events->queue; | |
453 | while (curr != NULL && time_of_event >= curr->time_of_event) | |
454 | { | |
455 | SIM_ASSERT (curr->next == NULL | |
456 | || curr->time_of_event <= curr->next->time_of_event); | |
457 | prev = &curr->next; | |
458 | curr = curr->next; | |
459 | } | |
460 | SIM_ASSERT (curr == NULL || time_of_event < curr->time_of_event); | |
028f6515 | 461 | |
c906108c SS |
462 | /* insert it */ |
463 | new_event->next = curr; | |
464 | *prev = new_event; | |
465 | new_event->time_of_event = time_of_event; | |
028f6515 | 466 | |
c906108c SS |
467 | /* adjust the time until the first event */ |
468 | update_time_from_event (sd); | |
469 | } | |
470 | #endif | |
471 | ||
472 | ||
473 | #if EXTERN_SIM_EVENTS_P | |
474 | sim_event * | |
475 | sim_events_schedule (SIM_DESC sd, | |
e4c803f5 | 476 | int64_t delta_time, |
c906108c SS |
477 | sim_event_handler *handler, |
478 | void *data) | |
479 | { | |
dbc0e7ce | 480 | return sim_events_schedule_tracef (sd, delta_time, handler, data, NULL); |
c906108c SS |
481 | } |
482 | #endif | |
483 | ||
484 | ||
485 | #if EXTERN_SIM_EVENTS_P | |
486 | sim_event * | |
487 | sim_events_schedule_tracef (SIM_DESC sd, | |
e4c803f5 | 488 | int64_t delta_time, |
c906108c SS |
489 | sim_event_handler *handler, |
490 | void *data, | |
491 | const char *fmt, | |
492 | ...) | |
493 | { | |
494 | sim_event *new_event; | |
495 | va_list ap; | |
496 | va_start (ap, fmt); | |
497 | new_event = sim_events_schedule_vtracef (sd, delta_time, handler, data, fmt, ap); | |
498 | va_end (ap); | |
499 | return new_event; | |
500 | } | |
501 | #endif | |
502 | ||
503 | ||
504 | #if EXTERN_SIM_EVENTS_P | |
505 | sim_event * | |
506 | sim_events_schedule_vtracef (SIM_DESC sd, | |
e4c803f5 | 507 | int64_t delta_time, |
c906108c SS |
508 | sim_event_handler *handler, |
509 | void *data, | |
510 | const char *fmt, | |
511 | va_list ap) | |
512 | { | |
513 | sim_event *new_event = sim_events_zalloc (sd); | |
514 | new_event->data = data; | |
515 | new_event->handler = handler; | |
516 | new_event->watching = watch_timer; | |
83034798 | 517 | if (fmt == NULL || !STRACE_EVENTS_P (sd) || vasprintf (&new_event->trace, fmt, ap) < 0) |
c906108c | 518 | new_event->trace = NULL; |
34b47c38 MF |
519 | insert_sim_event (sd, new_event, delta_time); |
520 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
521 | "event scheduled at %" PRIi64 " - " |
522 | "tag %p - time %" PRIi64 ", handler %p, data %p%s%s\n", | |
523 | sim_events_time (sd), | |
524 | new_event, | |
525 | new_event->time_of_event, | |
526 | new_event->handler, | |
527 | new_event->data, | |
34b47c38 MF |
528 | (new_event->trace != NULL) ? ", " : "", |
529 | (new_event->trace != NULL) ? new_event->trace : "")); | |
c906108c SS |
530 | return new_event; |
531 | } | |
532 | #endif | |
533 | ||
534 | ||
535 | #if EXTERN_SIM_EVENTS_P | |
536 | void | |
537 | sim_events_schedule_after_signal (SIM_DESC sd, | |
e4c803f5 | 538 | int64_t delta_time, |
c906108c SS |
539 | sim_event_handler *handler, |
540 | void *data) | |
541 | { | |
542 | sim_events *events = STATE_EVENTS (sd); | |
543 | sim_event *new_event; | |
544 | #if defined (HAVE_SIGPROCMASK) && defined (SIG_SETMASK) | |
545 | /*-LOCK-*/ | |
546 | sigset_t old_mask; | |
547 | sigset_t new_mask; | |
34b47c38 | 548 | sigfillset (&new_mask); |
c906108c SS |
549 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); |
550 | #endif | |
028f6515 | 551 | |
c906108c SS |
552 | /* allocate an event entry from the signal buffer */ |
553 | new_event = &events->held [events->nr_held]; | |
554 | events->nr_held ++; | |
555 | if (events->nr_held > MAX_NR_SIGNAL_SIM_EVENTS) | |
556 | { | |
557 | sim_engine_abort (NULL, NULL, NULL_CIA, | |
509c2f32 | 558 | "sim_events_schedule_after_signal - buffer overflow"); |
c906108c | 559 | } |
028f6515 | 560 | |
c906108c SS |
561 | new_event->data = data; |
562 | new_event->handler = handler; | |
563 | new_event->time_of_event = delta_time; /* work it out later */ | |
564 | new_event->next = NULL; | |
565 | ||
566 | events->work_pending = 1; /* notify main process */ | |
567 | ||
568 | #if defined (HAVE_SIGPROCMASK) && defined (SIG_SETMASK) | |
569 | /*-UNLOCK-*/ | |
570 | sigprocmask (SIG_SETMASK, &old_mask, NULL); | |
571 | #endif | |
028f6515 | 572 | |
c906108c | 573 | ETRACE ((_ETRACE, |
c704d6e7 MF |
574 | "signal scheduled at %" PRIi64 " - " |
575 | "tag %p - time %" PRIi64 ", handler %p, data %p\n", | |
576 | sim_events_time (sd), | |
577 | new_event, | |
578 | new_event->time_of_event, | |
579 | new_event->handler, | |
580 | new_event->data)); | |
c906108c SS |
581 | } |
582 | #endif | |
583 | ||
584 | ||
585 | #if EXTERN_SIM_EVENTS_P | |
586 | sim_event * | |
587 | sim_events_watch_clock (SIM_DESC sd, | |
588 | unsigned delta_ms_time, | |
589 | sim_event_handler *handler, | |
590 | void *data) | |
591 | { | |
592 | sim_events *events = STATE_EVENTS (sd); | |
593 | sim_event *new_event = sim_events_zalloc (sd); | |
594 | /* type */ | |
595 | new_event->watching = watch_clock; | |
596 | /* handler */ | |
597 | new_event->data = data; | |
598 | new_event->handler = handler; | |
599 | /* data */ | |
600 | if (events->resume_wallclock == 0) | |
601 | new_event->wallclock = (events->elapsed_wallclock + delta_ms_time); | |
602 | else | |
603 | new_event->wallclock = (events->elapsed_wallclock | |
604 | + sim_elapsed_time_since (events->resume_wallclock) | |
605 | + delta_ms_time); | |
606 | /* insert */ | |
607 | new_event->next = events->watchpoints; | |
608 | events->watchpoints = new_event; | |
609 | events->work_pending = 1; | |
610 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
611 | "event watching clock at %" PRIi64 " - " |
612 | "tag %p - wallclock %u, handler %p, data %p\n", | |
613 | sim_events_time (sd), | |
614 | new_event, | |
615 | new_event->wallclock, | |
616 | new_event->handler, | |
617 | new_event->data)); | |
c906108c SS |
618 | return new_event; |
619 | } | |
620 | #endif | |
621 | ||
622 | ||
4c0d76b9 MF |
623 | #if EXTERN_SIM_EVENTS_P |
624 | sim_event * | |
625 | sim_events_watch_pc (SIM_DESC sd, | |
c704d6e7 | 626 | int is_within, |
e4c803f5 MF |
627 | uint64_t lb, |
628 | uint64_t ub, | |
c704d6e7 MF |
629 | sim_event_handler *handler, |
630 | void *data) | |
4c0d76b9 MF |
631 | { |
632 | sim_events *events = STATE_EVENTS (sd); | |
633 | sim_event *new_event = sim_events_zalloc (sd); | |
634 | /* type */ | |
635 | new_event->watching = watch_pc; | |
636 | /* handler */ | |
637 | new_event->data = data; | |
638 | new_event->handler = handler; | |
639 | /* data */ | |
640 | new_event->lb = lb; | |
641 | new_event->lb64 = lb; | |
642 | new_event->ub = ub; | |
643 | new_event->ub64 = ub; | |
644 | new_event->is_within = (is_within != 0); | |
645 | /* insert */ | |
646 | new_event->next = events->watchpoints; | |
647 | events->watchpoints = new_event; | |
648 | events->work_pending = 1; | |
649 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
650 | "event watching pc at %" PRIi64 " - " |
651 | "tag %p - pc 0x%x..0x%x, handler %p, data %p\n", | |
652 | sim_events_time (sd), | |
653 | new_event, | |
654 | new_event->lb, | |
655 | new_event->ub, | |
656 | new_event->handler, | |
657 | new_event->data)); | |
4c0d76b9 MF |
658 | return new_event; |
659 | } | |
660 | #endif | |
661 | ||
662 | ||
c906108c SS |
663 | #if EXTERN_SIM_EVENTS_P |
664 | sim_event * | |
665 | sim_events_watch_sim (SIM_DESC sd, | |
666 | void *host_addr, | |
667 | int nr_bytes, | |
62fe7512 | 668 | enum bfd_endian byte_order, |
c906108c | 669 | int is_within, |
e4c803f5 MF |
670 | uint64_t lb, |
671 | uint64_t ub, | |
c906108c SS |
672 | sim_event_handler *handler, |
673 | void *data) | |
674 | { | |
675 | sim_events *events = STATE_EVENTS (sd); | |
676 | sim_event *new_event = sim_events_zalloc (sd); | |
677 | /* type */ | |
678 | switch (byte_order) | |
679 | { | |
1ac72f06 | 680 | case BFD_ENDIAN_UNKNOWN: |
c906108c SS |
681 | switch (nr_bytes) |
682 | { | |
683 | case 1: new_event->watching = watch_sim_host_1; break; | |
684 | case 2: new_event->watching = watch_sim_host_2; break; | |
685 | case 4: new_event->watching = watch_sim_host_4; break; | |
686 | case 8: new_event->watching = watch_sim_host_8; break; | |
687 | default: sim_io_error (sd, "sim_events_watch_sim - invalid nr bytes"); | |
688 | } | |
689 | break; | |
1ac72f06 | 690 | case BFD_ENDIAN_BIG: |
c906108c SS |
691 | switch (nr_bytes) |
692 | { | |
693 | case 1: new_event->watching = watch_sim_be_1; break; | |
694 | case 2: new_event->watching = watch_sim_be_2; break; | |
695 | case 4: new_event->watching = watch_sim_be_4; break; | |
696 | case 8: new_event->watching = watch_sim_be_8; break; | |
697 | default: sim_io_error (sd, "sim_events_watch_sim - invalid nr bytes"); | |
698 | } | |
699 | break; | |
1ac72f06 | 700 | case BFD_ENDIAN_LITTLE: |
c906108c SS |
701 | switch (nr_bytes) |
702 | { | |
703 | case 1: new_event->watching = watch_sim_le_1; break; | |
704 | case 2: new_event->watching = watch_sim_le_2; break; | |
705 | case 4: new_event->watching = watch_sim_le_4; break; | |
706 | case 8: new_event->watching = watch_sim_le_8; break; | |
707 | default: sim_io_error (sd, "sim_events_watch_sim - invalid nr bytes"); | |
708 | } | |
709 | break; | |
710 | default: | |
711 | sim_io_error (sd, "sim_events_watch_sim - invalid byte order"); | |
712 | } | |
713 | /* handler */ | |
714 | new_event->data = data; | |
715 | new_event->handler = handler; | |
716 | /* data */ | |
717 | new_event->host_addr = host_addr; | |
718 | new_event->lb = lb; | |
719 | new_event->lb64 = lb; | |
720 | new_event->ub = ub; | |
721 | new_event->ub64 = ub; | |
722 | new_event->is_within = (is_within != 0); | |
723 | /* insert */ | |
724 | new_event->next = events->watchpoints; | |
725 | events->watchpoints = new_event; | |
726 | events->work_pending = 1; | |
727 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
728 | "event watching host at %" PRIi64 " - " |
729 | "tag %p - host-addr %p, 0x%x..0x%x, handler %p, data %p\n", | |
730 | sim_events_time (sd), | |
731 | new_event, | |
732 | new_event->host_addr, | |
733 | new_event->lb, | |
734 | new_event->ub, | |
735 | new_event->handler, | |
736 | new_event->data)); | |
c906108c SS |
737 | return new_event; |
738 | } | |
739 | #endif | |
740 | ||
741 | ||
742 | #if EXTERN_SIM_EVENTS_P | |
743 | sim_event * | |
744 | sim_events_watch_core (SIM_DESC sd, | |
745 | address_word core_addr, | |
746 | unsigned core_map, | |
747 | int nr_bytes, | |
62fe7512 | 748 | enum bfd_endian byte_order, |
c906108c | 749 | int is_within, |
e4c803f5 MF |
750 | uint64_t lb, |
751 | uint64_t ub, | |
c906108c SS |
752 | sim_event_handler *handler, |
753 | void *data) | |
754 | { | |
755 | sim_events *events = STATE_EVENTS (sd); | |
756 | sim_event *new_event = sim_events_zalloc (sd); | |
757 | /* type */ | |
758 | switch (byte_order) | |
759 | { | |
1ac72f06 | 760 | case BFD_ENDIAN_UNKNOWN: |
c906108c SS |
761 | switch (nr_bytes) |
762 | { | |
763 | case 1: new_event->watching = watch_core_targ_1; break; | |
764 | case 2: new_event->watching = watch_core_targ_2; break; | |
765 | case 4: new_event->watching = watch_core_targ_4; break; | |
766 | case 8: new_event->watching = watch_core_targ_8; break; | |
767 | default: sim_io_error (sd, "sim_events_watch_core - invalid nr bytes"); | |
768 | } | |
769 | break; | |
1ac72f06 | 770 | case BFD_ENDIAN_BIG: |
c906108c SS |
771 | switch (nr_bytes) |
772 | { | |
773 | case 1: new_event->watching = watch_core_be_1; break; | |
774 | case 2: new_event->watching = watch_core_be_2; break; | |
775 | case 4: new_event->watching = watch_core_be_4; break; | |
776 | case 8: new_event->watching = watch_core_be_8; break; | |
777 | default: sim_io_error (sd, "sim_events_watch_core - invalid nr bytes"); | |
778 | } | |
779 | break; | |
1ac72f06 | 780 | case BFD_ENDIAN_LITTLE: |
c906108c SS |
781 | switch (nr_bytes) |
782 | { | |
783 | case 1: new_event->watching = watch_core_le_1; break; | |
784 | case 2: new_event->watching = watch_core_le_2; break; | |
785 | case 4: new_event->watching = watch_core_le_4; break; | |
786 | case 8: new_event->watching = watch_core_le_8; break; | |
787 | default: sim_io_error (sd, "sim_events_watch_core - invalid nr bytes"); | |
788 | } | |
789 | break; | |
790 | default: | |
791 | sim_io_error (sd, "sim_events_watch_core - invalid byte order"); | |
792 | } | |
793 | /* handler */ | |
794 | new_event->data = data; | |
795 | new_event->handler = handler; | |
796 | /* data */ | |
797 | new_event->core_addr = core_addr; | |
798 | new_event->core_map = core_map; | |
799 | new_event->lb = lb; | |
800 | new_event->lb64 = lb; | |
801 | new_event->ub = ub; | |
802 | new_event->ub64 = ub; | |
803 | new_event->is_within = (is_within != 0); | |
804 | /* insert */ | |
805 | new_event->next = events->watchpoints; | |
806 | events->watchpoints = new_event; | |
807 | events->work_pending = 1; | |
808 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
809 | "event watching host at %" PRIi64 " - " |
810 | "tag %p - host-addr %p, 0x%x..0x%x, handler %p, data %p\n", | |
811 | sim_events_time (sd), | |
812 | new_event, | |
813 | new_event->host_addr, | |
814 | new_event->lb, | |
815 | new_event->ub, | |
816 | new_event->handler, | |
817 | new_event->data)); | |
c906108c SS |
818 | return new_event; |
819 | } | |
820 | #endif | |
821 | ||
822 | ||
823 | #if EXTERN_SIM_EVENTS_P | |
824 | void | |
825 | sim_events_deschedule (SIM_DESC sd, | |
826 | sim_event *event_to_remove) | |
827 | { | |
828 | sim_events *events = STATE_EVENTS (sd); | |
829 | sim_event *to_remove = (sim_event*)event_to_remove; | |
830 | if (event_to_remove != NULL) | |
831 | { | |
832 | sim_event **queue = NULL; | |
833 | while ((queue = next_event_queue (sd, queue)) != NULL) | |
834 | { | |
835 | sim_event **ptr_to_current; | |
836 | for (ptr_to_current = queue; | |
837 | *ptr_to_current != NULL && *ptr_to_current != to_remove; | |
838 | ptr_to_current = &(*ptr_to_current)->next); | |
839 | if (*ptr_to_current == to_remove) | |
840 | { | |
841 | sim_event *dead = *ptr_to_current; | |
842 | *ptr_to_current = dead->next; | |
843 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
844 | "event/watch descheduled at %" PRIi64 " - " |
845 | "tag %p - time %" PRIi64 ", handler %p, data %p%s%s\n", | |
846 | sim_events_time (sd), | |
847 | event_to_remove, | |
848 | dead->time_of_event, | |
849 | dead->handler, | |
850 | dead->data, | |
c906108c SS |
851 | (dead->trace != NULL) ? ", " : "", |
852 | (dead->trace != NULL) ? dead->trace : "")); | |
853 | sim_events_free (sd, dead); | |
854 | update_time_from_event (sd); | |
855 | SIM_ASSERT ((events->time_from_event >= 0) == (events->queue != NULL)); | |
856 | return; | |
857 | } | |
858 | } | |
859 | } | |
860 | ETRACE ((_ETRACE, | |
c704d6e7 MF |
861 | "event/watch descheduled at %" PRIi64 " - tag %p - not found\n", |
862 | sim_events_time (sd), | |
863 | event_to_remove)); | |
c906108c SS |
864 | } |
865 | #endif | |
866 | ||
867 | ||
868 | STATIC_INLINE_SIM_EVENTS\ | |
869 | (int) | |
870 | sim_watch_valid (SIM_DESC sd, | |
871 | sim_event *to_do) | |
872 | { | |
873 | switch (to_do->watching) | |
874 | { | |
875 | ||
876 | #define WATCH_CORE(N,OP,EXT) \ | |
877 | int ok; \ | |
878 | unsigned_##N word = 0; \ | |
879 | int nr_read = sim_core_read_buffer (sd, NULL, to_do->core_map, &word, \ | |
880 | to_do->core_addr, sizeof (word)); \ | |
881 | OP (word); \ | |
882 | ok = (nr_read == sizeof (unsigned_##N) \ | |
883 | && (to_do->is_within \ | |
884 | == (word >= to_do->lb##EXT \ | |
885 | && word <= to_do->ub##EXT))); | |
886 | ||
887 | case watch_core_targ_1: | |
888 | { | |
889 | WATCH_CORE (1, T2H,); | |
890 | return ok; | |
891 | } | |
892 | case watch_core_targ_2: | |
893 | { | |
894 | WATCH_CORE (2, T2H,); | |
895 | return ok; | |
896 | } | |
897 | case watch_core_targ_4: | |
898 | { | |
899 | WATCH_CORE (4, T2H,); | |
900 | return ok; | |
901 | } | |
902 | case watch_core_targ_8: | |
903 | { | |
904 | WATCH_CORE (8, T2H,64); | |
905 | return ok; | |
906 | } | |
907 | ||
908 | case watch_core_be_1: | |
909 | { | |
910 | WATCH_CORE (1, BE2H,); | |
911 | return ok; | |
912 | } | |
913 | case watch_core_be_2: | |
914 | { | |
915 | WATCH_CORE (2, BE2H,); | |
916 | return ok; | |
917 | } | |
918 | case watch_core_be_4: | |
919 | { | |
920 | WATCH_CORE (4, BE2H,); | |
921 | return ok; | |
922 | } | |
923 | case watch_core_be_8: | |
924 | { | |
925 | WATCH_CORE (8, BE2H,64); | |
926 | return ok; | |
927 | } | |
928 | ||
929 | case watch_core_le_1: | |
930 | { | |
931 | WATCH_CORE (1, LE2H,); | |
932 | return ok; | |
933 | } | |
934 | case watch_core_le_2: | |
935 | { | |
936 | WATCH_CORE (2, LE2H,); | |
937 | return ok; | |
938 | } | |
939 | case watch_core_le_4: | |
940 | { | |
941 | WATCH_CORE (4, LE2H,); | |
942 | return ok; | |
943 | } | |
944 | case watch_core_le_8: | |
945 | { | |
946 | WATCH_CORE (8, LE2H,64); | |
947 | return ok; | |
948 | } | |
949 | #undef WATCH_CORE | |
950 | ||
951 | #define WATCH_SIM(N,OP,EXT) \ | |
952 | int ok; \ | |
953 | unsigned_##N word = *(unsigned_##N*)to_do->host_addr; \ | |
954 | OP (word); \ | |
955 | ok = (to_do->is_within \ | |
956 | == (word >= to_do->lb##EXT \ | |
957 | && word <= to_do->ub##EXT)); | |
958 | ||
959 | case watch_sim_host_1: | |
960 | { | |
961 | WATCH_SIM (1, word = ,); | |
962 | return ok; | |
963 | } | |
964 | case watch_sim_host_2: | |
965 | { | |
966 | WATCH_SIM (2, word = ,); | |
967 | return ok; | |
968 | } | |
969 | case watch_sim_host_4: | |
970 | { | |
971 | WATCH_SIM (4, word = ,); | |
972 | return ok; | |
973 | } | |
974 | case watch_sim_host_8: | |
975 | { | |
976 | WATCH_SIM (8, word = ,64); | |
977 | return ok; | |
978 | } | |
979 | ||
980 | case watch_sim_be_1: | |
981 | { | |
982 | WATCH_SIM (1, BE2H,); | |
983 | return ok; | |
984 | } | |
985 | case watch_sim_be_2: | |
986 | { | |
987 | WATCH_SIM (2, BE2H,); | |
988 | return ok; | |
989 | } | |
990 | case watch_sim_be_4: | |
991 | { | |
992 | WATCH_SIM (4, BE2H,); | |
993 | return ok; | |
994 | } | |
995 | case watch_sim_be_8: | |
996 | { | |
997 | WATCH_SIM (8, BE2H,64); | |
998 | return ok; | |
999 | } | |
1000 | ||
1001 | case watch_sim_le_1: | |
1002 | { | |
1003 | WATCH_SIM (1, LE2H,); | |
1004 | return ok; | |
1005 | } | |
1006 | case watch_sim_le_2: | |
1007 | { | |
1008 | WATCH_SIM (1, LE2H,); | |
1009 | return ok; | |
1010 | } | |
1011 | case watch_sim_le_4: | |
1012 | { | |
1013 | WATCH_SIM (1, LE2H,); | |
1014 | return ok; | |
1015 | } | |
1016 | case watch_sim_le_8: | |
1017 | { | |
1018 | WATCH_SIM (1, LE2H,64); | |
1019 | return ok; | |
1020 | } | |
1021 | #undef WATCH_SIM | |
1022 | ||
4c0d76b9 MF |
1023 | case watch_pc: |
1024 | { | |
1025 | int c; | |
1026 | ||
1027 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
1028 | { | |
1029 | sim_cpu *cpu = STATE_CPU (sd, c); | |
1030 | sim_cia cia = sim_pc_get (cpu); | |
1031 | ||
1032 | if (to_do->is_within == (cia >= to_do->lb64 && cia <= to_do->ub64)) | |
1033 | return 1; | |
1034 | } | |
1035 | return 0; | |
1036 | } | |
1037 | ||
c906108c SS |
1038 | case watch_clock: /* wallclock */ |
1039 | { | |
1040 | unsigned long elapsed_time = sim_events_elapsed_time (sd); | |
1041 | return (elapsed_time >= to_do->wallclock); | |
1042 | } | |
1043 | ||
1044 | default: | |
1045 | sim_io_error (sd, "sim_watch_valid - bad switch"); | |
1046 | break; | |
1047 | ||
1048 | } | |
1049 | return 1; | |
1050 | } | |
1051 | ||
1052 | ||
1053 | INLINE_SIM_EVENTS\ | |
1054 | (int) | |
1055 | sim_events_tick (SIM_DESC sd) | |
1056 | { | |
1057 | sim_events *events = STATE_EVENTS (sd); | |
1058 | ||
1059 | /* this should only be called after the previous ticks have been | |
1060 | fully processed */ | |
1061 | ||
1062 | /* Advance the time but *only* if there is nothing to process */ | |
1063 | if (events->work_pending | |
1064 | || events->time_from_event == 0) | |
1065 | { | |
1066 | events->nr_ticks_to_process += 1; | |
1067 | return 1; | |
1068 | } | |
1069 | else | |
1070 | { | |
1071 | events->time_from_event -= 1; | |
1072 | return 0; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | ||
1077 | INLINE_SIM_EVENTS\ | |
1078 | (int) | |
1079 | sim_events_tickn (SIM_DESC sd, | |
1080 | int n) | |
1081 | { | |
1082 | sim_events *events = STATE_EVENTS (sd); | |
1083 | SIM_ASSERT (n > 0); | |
1084 | ||
1085 | /* this should only be called after the previous ticks have been | |
1086 | fully processed */ | |
1087 | ||
1088 | /* Advance the time but *only* if there is nothing to process */ | |
1089 | if (events->work_pending || events->time_from_event < n) | |
1090 | { | |
1091 | events->nr_ticks_to_process += n; | |
1092 | return 1; | |
1093 | } | |
1094 | else | |
1095 | { | |
1096 | events->time_from_event -= n; | |
1097 | return 0; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | ||
1102 | INLINE_SIM_EVENTS\ | |
1103 | (void) | |
1104 | sim_events_slip (SIM_DESC sd, | |
1105 | int slip) | |
1106 | { | |
1107 | sim_events *events = STATE_EVENTS (sd); | |
1108 | SIM_ASSERT (slip > 0); | |
1109 | ||
1110 | /* Flag a ready event with work_pending instead of number of ticks | |
1111 | to process so that the time continues to be correct */ | |
1112 | if (events->time_from_event < slip) | |
1113 | { | |
1114 | events->work_pending = 1; | |
1115 | } | |
1116 | events->time_from_event -= slip; | |
1117 | } | |
1118 | ||
1119 | ||
1120 | INLINE_SIM_EVENTS\ | |
1121 | (void) | |
1122 | sim_events_preprocess (SIM_DESC sd, | |
1123 | int events_were_last, | |
1124 | int events_were_next) | |
1125 | { | |
34b47c38 | 1126 | sim_events *events = STATE_EVENTS (sd); |
c906108c SS |
1127 | if (events_were_last) |
1128 | { | |
1129 | /* Halted part way through event processing */ | |
1130 | ASSERT (events->nr_ticks_to_process != 0); | |
1131 | /* The external world can't tell if the event that stopped the | |
1132 | simulator was the last event to process. */ | |
1133 | ASSERT (events_were_next); | |
1134 | sim_events_process (sd); | |
1135 | } | |
1136 | else if (events_were_next) | |
1137 | { | |
1138 | /* Halted by the last processor */ | |
1139 | if (sim_events_tick (sd)) | |
1140 | sim_events_process (sd); | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | ||
1145 | INLINE_SIM_EVENTS\ | |
1146 | (void) | |
1147 | sim_events_process (SIM_DESC sd) | |
1148 | { | |
34b47c38 | 1149 | sim_events *events = STATE_EVENTS (sd); |
e4c803f5 | 1150 | int64_t event_time = sim_events_time (sd); |
c906108c SS |
1151 | |
1152 | /* Clear work_pending before checking nr_held. Clearing | |
1153 | work_pending after nr_held (with out a lock could loose an | |
1154 | event). */ | |
1155 | events->work_pending = 0; | |
1156 | ||
1157 | /* move any events that were asynchronously queued by any signal | |
1158 | handlers onto the real event queue. */ | |
1159 | if (events->nr_held > 0) | |
1160 | { | |
1161 | int i; | |
028f6515 | 1162 | |
c906108c SS |
1163 | #if defined(HAVE_SIGPROCMASK) && defined(SIG_SETMASK) |
1164 | /*-LOCK-*/ | |
1165 | sigset_t old_mask; | |
1166 | sigset_t new_mask; | |
34b47c38 MF |
1167 | sigfillset (&new_mask); |
1168 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); | |
c906108c SS |
1169 | #endif |
1170 | ||
1171 | for (i = 0; i < events->nr_held; i++) | |
1172 | { | |
1173 | sim_event *entry = &events->held [i]; | |
1174 | sim_events_schedule (sd, | |
1175 | entry->time_of_event, | |
1176 | entry->handler, | |
1177 | entry->data); | |
1178 | } | |
1179 | events->nr_held = 0; | |
028f6515 | 1180 | |
c906108c SS |
1181 | #if defined(HAVE_SIGPROCMASK) && defined(SIG_SETMASK) |
1182 | /*-UNLOCK-*/ | |
34b47c38 | 1183 | sigprocmask (SIG_SETMASK, &old_mask, NULL); |
c906108c | 1184 | #endif |
028f6515 | 1185 | |
c906108c | 1186 | } |
028f6515 | 1187 | |
c906108c SS |
1188 | /* Process any watchpoints. Be careful to allow a watchpoint to |
1189 | appear/disappear under our feet. | |
1190 | To ensure that watchpoints are processed only once per cycle, | |
1191 | they are moved onto a watched queue, this returned to the | |
1192 | watchpoint queue when all queue processing has been | |
1193 | completed. */ | |
1194 | while (events->watchpoints != NULL) | |
1195 | { | |
1196 | sim_event *to_do = events->watchpoints; | |
1197 | events->watchpoints = to_do->next; | |
1198 | if (sim_watch_valid (sd, to_do)) | |
1199 | { | |
1200 | sim_event_handler *handler = to_do->handler; | |
1201 | void *data = to_do->data; | |
34b47c38 | 1202 | ETRACE ((_ETRACE, |
c704d6e7 MF |
1203 | "event issued at %" PRIi64 " - " |
1204 | "tag %p - handler %p, data %p%s%s\n", | |
1205 | event_time, | |
1206 | to_do, | |
1207 | handler, | |
1208 | data, | |
34b47c38 MF |
1209 | (to_do->trace != NULL) ? ", " : "", |
1210 | (to_do->trace != NULL) ? to_do->trace : "")); | |
c906108c SS |
1211 | sim_events_free (sd, to_do); |
1212 | handler (sd, data); | |
1213 | } | |
1214 | else | |
1215 | { | |
1216 | to_do->next = events->watchedpoints; | |
1217 | events->watchedpoints = to_do; | |
1218 | } | |
1219 | } | |
028f6515 | 1220 | |
c906108c SS |
1221 | /* consume all events for this or earlier times. Be careful to |
1222 | allow an event to appear/disappear under our feet */ | |
1223 | while (events->queue->time_of_event < | |
1224 | (event_time + events->nr_ticks_to_process)) | |
1225 | { | |
1226 | sim_event *to_do = events->queue; | |
1227 | sim_event_handler *handler = to_do->handler; | |
1228 | void *data = to_do->data; | |
1229 | events->queue = to_do->next; | |
1230 | update_time_from_event (sd); | |
34b47c38 | 1231 | ETRACE ((_ETRACE, |
c704d6e7 MF |
1232 | "event issued at %" PRIi64 " - tag %p - handler %p, data %p%s%s\n", |
1233 | event_time, | |
1234 | to_do, | |
1235 | handler, | |
1236 | data, | |
34b47c38 MF |
1237 | (to_do->trace != NULL) ? ", " : "", |
1238 | (to_do->trace != NULL) ? to_do->trace : "")); | |
c906108c SS |
1239 | sim_events_free (sd, to_do); |
1240 | handler (sd, data); | |
1241 | } | |
028f6515 | 1242 | |
c906108c SS |
1243 | /* put things back where they belong ready for the next iteration */ |
1244 | events->watchpoints = events->watchedpoints; | |
1245 | events->watchedpoints = NULL; | |
1246 | if (events->watchpoints != NULL) | |
1247 | events->work_pending = 1; | |
028f6515 | 1248 | |
c906108c SS |
1249 | /* advance the time */ |
1250 | SIM_ASSERT (events->time_from_event >= events->nr_ticks_to_process); | |
1251 | SIM_ASSERT (events->queue != NULL); /* always poll event */ | |
1252 | events->time_from_event -= events->nr_ticks_to_process; | |
1253 | ||
1254 | /* this round of processing complete */ | |
1255 | events->nr_ticks_to_process = 0; | |
c906108c SS |
1256 | } |
1257 | ||
1258 | #endif |