1 /* $NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Emmanuel Dreyfus.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: releng/11.1/sys/compat/linux/linux_time.c 317637 2017-05-01 06:42:39Z dchagin $");
34 #if 0
35 __KERNEL_RCSID(0, "$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $");
36 #endif
37
38 #include "opt_compat.h"
39
40 #include <sys/param.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/ucred.h>
44 #include <sys/limits.h>
45 #include <sys/mount.h>
46 #include <sys/mutex.h>
47 #include <sys/resourcevar.h>
48 #include <sys/sdt.h>
49 #include <sys/signal.h>
50 #include <sys/stdint.h>
51 #include <sys/syscallsubr.h>
52 #include <sys/sysproto.h>
53 #include <sys/time.h>
54 #include <sys/systm.h>
55 #include <sys/proc.h>
56
57 #ifdef COMPAT_LINUX32
58 #include <machine/../linux32/linux.h>
59 #include <machine/../linux32/linux32_proto.h>
60 #else
61 #include <machine/../linux/linux.h>
62 #include <machine/../linux/linux_proto.h>
63 #endif
64
65 #include <compat/linux/linux_dtrace.h>
66 #include <compat/linux/linux_timer.h>
67
68 /* DTrace init */
69 LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
70
71 /**
72 * DTrace probes in this module.
73 */
74 LIN_SDT_PROBE_DEFINE2(time, native_to_linux_timespec, entry,
75 "struct l_timespec *", "struct timespec *");
76 LIN_SDT_PROBE_DEFINE0(time, native_to_linux_timespec, return);
77 LIN_SDT_PROBE_DEFINE2(time, linux_to_native_timespec, entry,
78 "struct timespec *", "struct l_timespec *");
79 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_timespec, return, "int");
80 LIN_SDT_PROBE_DEFINE2(time, linux_to_native_clockid, entry, "clockid_t *",
81 "clockid_t");
82 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, unsupported_clockid,
83 "clockid_t");
84 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, unknown_clockid,
85 "clockid_t");
86 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, return, "int");
87 LIN_SDT_PROBE_DEFINE2(time, linux_clock_gettime, entry, "clockid_t",
88 "struct l_timespec *");
89 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, conversion_error, "int");
90 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, gettime_error, "int");
91 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, copyout_error, "int");
92 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, return, "int");
93 LIN_SDT_PROBE_DEFINE2(time, linux_clock_settime, entry, "clockid_t",
94 "struct l_timespec *");
95 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, conversion_error, "int");
96 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, settime_error, "int");
97 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, copyin_error, "int");
98 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, return, "int");
99 LIN_SDT_PROBE_DEFINE2(time, linux_clock_getres, entry, "clockid_t",
100 "struct l_timespec *");
101 LIN_SDT_PROBE_DEFINE0(time, linux_clock_getres, nullcall);
102 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, conversion_error, "int");
103 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, getres_error, "int");
104 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, copyout_error, "int");
105 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, return, "int");
106 LIN_SDT_PROBE_DEFINE2(time, linux_nanosleep, entry, "const struct l_timespec *",
107 "struct l_timespec *");
108 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, conversion_error, "int");
109 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, copyout_error, "int");
110 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, copyin_error, "int");
111 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, return, "int");
112 LIN_SDT_PROBE_DEFINE4(time, linux_clock_nanosleep, entry, "clockid_t", "int",
113 "struct l_timespec *", "struct l_timespec *");
114 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, conversion_error, "int");
115 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, copyout_error, "int");
116 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, copyin_error, "int");
117 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, unsupported_flags, "int");
118 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, unsupported_clockid, "int");
119 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, return, "int");
120
121
122 int
123 native_to_linux_timespec(struct l_timespec *ltp, struct timespec *ntp)
124 {
125
126 LIN_SDT_PROBE2(time, native_to_linux_timespec, entry, ltp, ntp);
127 #ifdef COMPAT_LINUX32
128 if (ntp->tv_sec > INT_MAX || ntp->tv_sec < INT_MIN)
129 return (EOVERFLOW);
130 #endif
131 ltp->tv_sec = ntp->tv_sec;
132 ltp->tv_nsec = ntp->tv_nsec;
133
134 LIN_SDT_PROBE0(time, native_to_linux_timespec, return);
135 return (0);
136 }
137
138 int
139 linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
140 {
141
142 LIN_SDT_PROBE2(time, linux_to_native_timespec, entry, ntp, ltp);
143
144 if (ltp->tv_sec < 0 || ltp->tv_nsec < 0 || ltp->tv_nsec > 999999999) {
145 LIN_SDT_PROBE1(time, linux_to_native_timespec, return, EINVAL);
146 return (EINVAL);
147 }
148 ntp->tv_sec = ltp->tv_sec;
149 ntp->tv_nsec = ltp->tv_nsec;
150
151 LIN_SDT_PROBE1(time, linux_to_native_timespec, return, 0);
152 return (0);
153 }
154
155 int
156 native_to_linux_itimerspec(struct l_itimerspec *ltp, struct itimerspec *ntp)
157 {
158 int error;
159
160 error = native_to_linux_timespec(<p->it_interval, &ntp->it_interval);
161 if (error == 0)
162 error = native_to_linux_timespec(<p->it_value, &ntp->it_interval);
163 return (error);
164 }
165
166 int
167 linux_to_native_itimerspec(struct itimerspec *ntp, struct l_itimerspec *ltp)
168 {
169 int error;
170
171 error = linux_to_native_timespec(&ntp->it_interval, <p->it_interval);
172 if (error == 0)
173 error = linux_to_native_timespec(&ntp->it_value, <p->it_value);
174 return (error);
175 }
176
177 int
178 linux_to_native_clockid(clockid_t *n, clockid_t l)
179 {
180
181 LIN_SDT_PROBE2(time, linux_to_native_clockid, entry, n, l);
182
183 if (l < 0) {
184 /* cpu-clock */
185 if ((l & LINUX_CLOCKFD_MASK) == LINUX_CLOCKFD)
186 return (EINVAL);
187 if (LINUX_CPUCLOCK_WHICH(l) >= LINUX_CPUCLOCK_MAX)
188 return (EINVAL);
189
190 if (LINUX_CPUCLOCK_PERTHREAD(l))
191 *n = CLOCK_THREAD_CPUTIME_ID;
192 else
193 *n = CLOCK_PROCESS_CPUTIME_ID;
194 return (0);
195 }
196
197 switch (l) {
198 case LINUX_CLOCK_REALTIME:
199 *n = CLOCK_REALTIME;
200 break;
201 case LINUX_CLOCK_MONOTONIC:
202 *n = CLOCK_MONOTONIC;
203 break;
204 case LINUX_CLOCK_REALTIME_COARSE:
205 *n = CLOCK_REALTIME_FAST;
206 break;
207 case LINUX_CLOCK_MONOTONIC_COARSE:
208 *n = CLOCK_MONOTONIC_FAST;
209 break;
210 case LINUX_CLOCK_BOOTTIME:
211 *n = CLOCK_UPTIME;
212 break;
213 case LINUX_CLOCK_MONOTONIC_RAW:
214 case LINUX_CLOCK_REALTIME_ALARM:
215 case LINUX_CLOCK_BOOTTIME_ALARM:
216 case LINUX_CLOCK_SGI_CYCLE:
217 case LINUX_CLOCK_TAI:
218 LIN_SDT_PROBE1(time, linux_to_native_clockid,
219 unsupported_clockid, l);
220 LIN_SDT_PROBE1(time, linux_to_native_clockid, return, EINVAL);
221 return (EINVAL);
222 default:
223 LIN_SDT_PROBE1(time, linux_to_native_clockid,
224 unknown_clockid, l);
225 LIN_SDT_PROBE1(time, linux_to_native_clockid, return, EINVAL);
226 return (EINVAL);
227 }
228
229 LIN_SDT_PROBE1(time, linux_to_native_clockid, return, 0);
230 return (0);
231 }
232
233 int
234 linux_to_native_timerflags(int *nflags, int flags)
235 {
236
237 if (flags & ~LINUX_TIMER_ABSTIME)
238 return (EINVAL);
239 *nflags = 0;
240 if (flags & LINUX_TIMER_ABSTIME)
241 *nflags |= TIMER_ABSTIME;
242 return (0);
243 }
244
245 int
246 linux_clock_gettime(struct thread *td, struct linux_clock_gettime_args *args)
247 {
248 struct l_timespec lts;
249 struct timespec tp;
250 struct rusage ru;
251 struct thread *targettd;
252 struct proc *p;
253 int error, clockwhich;
254 clockid_t nwhich = 0; /* XXX: GCC */
255 pid_t pid;
256 lwpid_t tid;
257
258 LIN_SDT_PROBE2(time, linux_clock_gettime, entry, args->which, args->tp);
259
260 error = linux_to_native_clockid(&nwhich, args->which);
261 if (error != 0) {
262 LIN_SDT_PROBE1(time, linux_clock_gettime, conversion_error,
263 error);
264 LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
265 return (error);
266 }
267
268 switch (nwhich) {
269 case CLOCK_PROCESS_CPUTIME_ID:
270 clockwhich = LINUX_CPUCLOCK_WHICH(args->which);
271 pid = LINUX_CPUCLOCK_ID(args->which);
272 if (pid == 0) {
273 p = td->td_proc;
274 PROC_LOCK(p);
275 } else {
276 error = pget(pid, PGET_CANSEE, &p);
277 if (error != 0)
278 return (EINVAL);
279 }
280 switch (clockwhich) {
281 case LINUX_CPUCLOCK_PROF:
282 PROC_STATLOCK(p);
283 calcru(p, &ru.ru_utime, &ru.ru_stime);
284 PROC_STATUNLOCK(p);
285 PROC_UNLOCK(p);
286 timevaladd(&ru.ru_utime, &ru.ru_stime);
287 TIMEVAL_TO_TIMESPEC(&ru.ru_utime, &tp);
288 break;
289 case LINUX_CPUCLOCK_VIRT:
290 PROC_STATLOCK(p);
291 calcru(p, &ru.ru_utime, &ru.ru_stime);
292 PROC_STATUNLOCK(p);
293 PROC_UNLOCK(p);
294 TIMEVAL_TO_TIMESPEC(&ru.ru_utime, &tp);
295 break;
296 case LINUX_CPUCLOCK_SCHED:
297 PROC_UNLOCK(p);
298 error = kern_clock_getcpuclockid2(td, pid,
299 CPUCLOCK_WHICH_PID, &nwhich);
300 if (error != 0)
301 return (EINVAL);
302 error = kern_clock_gettime(td, nwhich, &tp);
303 break;
304 default:
305 PROC_UNLOCK(p);
306 return (EINVAL);
307 }
308
309 break;
310
311 case CLOCK_THREAD_CPUTIME_ID:
312 clockwhich = LINUX_CPUCLOCK_WHICH(args->which);
313 p = td->td_proc;
314 tid = LINUX_CPUCLOCK_ID(args->which);
315 if (tid == 0) {
316 targettd = td;
317 PROC_LOCK(p);
318 } else {
319 targettd = tdfind(tid, p->p_pid);
320 if (targettd == NULL)
321 return (EINVAL);
322 }
323 switch (clockwhich) {
324 case LINUX_CPUCLOCK_PROF:
325 PROC_STATLOCK(p);
326 thread_lock(targettd);
327 rufetchtd(targettd, &ru);
328 thread_unlock(targettd);
329 PROC_STATUNLOCK(p);
330 PROC_UNLOCK(p);
331 timevaladd(&ru.ru_utime, &ru.ru_stime);
332 TIMEVAL_TO_TIMESPEC(&ru.ru_utime, &tp);
333 break;
334 case LINUX_CPUCLOCK_VIRT:
335 PROC_STATLOCK(p);
336 thread_lock(targettd);
337 rufetchtd(targettd, &ru);
338 thread_unlock(targettd);
339 PROC_STATUNLOCK(p);
340 PROC_UNLOCK(p);
341 TIMEVAL_TO_TIMESPEC(&ru.ru_utime, &tp);
342 break;
343 case LINUX_CPUCLOCK_SCHED:
344 error = kern_clock_getcpuclockid2(td, tid,
345 CPUCLOCK_WHICH_TID, &nwhich);
346 PROC_UNLOCK(p);
347 if (error != 0)
348 return (EINVAL);
349 error = kern_clock_gettime(td, nwhich, &tp);
350 break;
351 default:
352 PROC_UNLOCK(p);
353 return (EINVAL);
354 }
355 break;
356
357 default:
358 error = kern_clock_gettime(td, nwhich, &tp);
359 break;
360 }
361 if (error != 0) {
362 LIN_SDT_PROBE1(time, linux_clock_gettime, gettime_error, error);
363 LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
364 return (error);
365 }
366 error = native_to_linux_timespec(<s, &tp);
367 if (error != 0)
368 return (error);
369 error = copyout(<s, args->tp, sizeof lts);
370 if (error != 0)
371 LIN_SDT_PROBE1(time, linux_clock_gettime, copyout_error, error);
372
373 LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
374 return (error);
375 }
376
377 int
378 linux_clock_settime(struct thread *td, struct linux_clock_settime_args *args)
379 {
380 struct timespec ts;
381 struct l_timespec lts;
382 int error;
383 clockid_t nwhich = 0; /* XXX: GCC */
384
385 LIN_SDT_PROBE2(time, linux_clock_settime, entry, args->which, args->tp);
386
387 error = linux_to_native_clockid(&nwhich, args->which);
388 if (error != 0) {
389 LIN_SDT_PROBE1(time, linux_clock_settime, conversion_error,
390 error);
391 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
392 return (error);
393 }
394 error = copyin(args->tp, <s, sizeof lts);
395 if (error != 0) {
396 LIN_SDT_PROBE1(time, linux_clock_settime, copyin_error, error);
397 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
398 return (error);
399 }
400 error = linux_to_native_timespec(&ts, <s);
401 if (error != 0) {
402 LIN_SDT_PROBE1(time, linux_clock_settime, conversion_error,
403 error);
404 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
405 return (error);
406 }
407
408 error = kern_clock_settime(td, nwhich, &ts);
409 if (error != 0)
410 LIN_SDT_PROBE1(time, linux_clock_settime, settime_error, error);
411
412 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
413 return (error);
414 }
415
416 int
417 linux_clock_getres(struct thread *td, struct linux_clock_getres_args *args)
418 {
419 struct proc *p;
420 struct timespec ts;
421 struct l_timespec lts;
422 int error, clockwhich;
423 clockid_t nwhich = 0; /* XXX: GCC */
424 pid_t pid;
425 lwpid_t tid;
426
427 LIN_SDT_PROBE2(time, linux_clock_getres, entry, args->which, args->tp);
428
429 error = linux_to_native_clockid(&nwhich, args->which);
430 if (error != 0) {
431 LIN_SDT_PROBE1(time, linux_clock_getres, conversion_error,
432 error);
433 LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
434 return (error);
435 }
436
437 /*
438 * Check user supplied clock id in case of per-process
439 * or thread-specific cpu-time clock.
440 */
441 switch (nwhich) {
442 case CLOCK_THREAD_CPUTIME_ID:
443 tid = LINUX_CPUCLOCK_ID(args->which);
444 if (tid != 0) {
445 p = td->td_proc;
446 if (tdfind(tid, p->p_pid) == NULL)
447 return (ESRCH);
448 PROC_UNLOCK(p);
449 }
450 break;
451 case CLOCK_PROCESS_CPUTIME_ID:
452 pid = LINUX_CPUCLOCK_ID(args->which);
453 if (pid != 0) {
454 error = pget(pid, PGET_CANSEE, &p);
455 if (error != 0)
456 return (EINVAL);
457 PROC_UNLOCK(p);
458 }
459 break;
460 }
461
462 if (args->tp == NULL) {
463 LIN_SDT_PROBE0(time, linux_clock_getres, nullcall);
464 LIN_SDT_PROBE1(time, linux_clock_getres, return, 0);
465 return (0);
466 }
467
468 switch (nwhich) {
469 case CLOCK_THREAD_CPUTIME_ID:
470 case CLOCK_PROCESS_CPUTIME_ID:
471 clockwhich = LINUX_CPUCLOCK_WHICH(args->which);
472 switch (clockwhich) {
473 case LINUX_CPUCLOCK_PROF:
474 nwhich = CLOCK_PROF;
475 break;
476 case LINUX_CPUCLOCK_VIRT:
477 nwhich = CLOCK_VIRTUAL;
478 break;
479 case LINUX_CPUCLOCK_SCHED:
480 break;
481 default:
482 return (EINVAL);
483 }
484 break;
485
486 default:
487 break;
488 }
489 error = kern_clock_getres(td, nwhich, &ts);
490 if (error != 0) {
491 LIN_SDT_PROBE1(time, linux_clock_getres, getres_error, error);
492 LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
493 return (error);
494 }
495 error = native_to_linux_timespec(<s, &ts);
496 if (error != 0)
497 return (error);
498 error = copyout(<s, args->tp, sizeof lts);
499 if (error != 0)
500 LIN_SDT_PROBE1(time, linux_clock_getres, copyout_error, error);
501
502 LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
503 return (error);
504 }
505
506 int
507 linux_nanosleep(struct thread *td, struct linux_nanosleep_args *args)
508 {
509 struct timespec *rmtp;
510 struct l_timespec lrqts, lrmts;
511 struct timespec rqts, rmts;
512 int error, error2;
513
514 LIN_SDT_PROBE2(time, linux_nanosleep, entry, args->rqtp, args->rmtp);
515
516 error = copyin(args->rqtp, &lrqts, sizeof lrqts);
517 if (error != 0) {
518 LIN_SDT_PROBE1(time, linux_nanosleep, copyin_error, error);
519 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
520 return (error);
521 }
522
523 if (args->rmtp != NULL)
524 rmtp = &rmts;
525 else
526 rmtp = NULL;
527
528 error = linux_to_native_timespec(&rqts, &lrqts);
529 if (error != 0) {
530 LIN_SDT_PROBE1(time, linux_nanosleep, conversion_error, error);
531 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
532 return (error);
533 }
534 error = kern_nanosleep(td, &rqts, rmtp);
535 if (error == EINTR && args->rmtp != NULL) {
536 error2 = native_to_linux_timespec(&lrmts, rmtp);
537 if (error2 != 0)
538 return (error2);
539 error2 = copyout(&lrmts, args->rmtp, sizeof(lrmts));
540 if (error2 != 0) {
541 LIN_SDT_PROBE1(time, linux_nanosleep, copyout_error,
542 error2);
543 LIN_SDT_PROBE1(time, linux_nanosleep, return, error2);
544 return (error2);
545 }
546 }
547
548 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
549 return (error);
550 }
551
552 int
553 linux_clock_nanosleep(struct thread *td, struct linux_clock_nanosleep_args *args)
554 {
555 struct timespec *rmtp;
556 struct l_timespec lrqts, lrmts;
557 struct timespec rqts, rmts;
558 int error, error2, flags;
559 clockid_t clockid;
560
561 LIN_SDT_PROBE4(time, linux_clock_nanosleep, entry, args->which,
562 args->flags, args->rqtp, args->rmtp);
563
564 error = linux_to_native_timerflags(&flags, args->flags);
565 if (error != 0) {
566 LIN_SDT_PROBE1(time, linux_clock_nanosleep, unsupported_flags,
567 args->flags);
568 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
569 return (error);
570 }
571
572 error = linux_to_native_clockid(&clockid, args->which);
573 if (error != 0) {
574 LIN_SDT_PROBE1(time, linux_clock_nanosleep, unsupported_clockid,
575 args->which);
576 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
577 return (error);
578 }
579
580 error = copyin(args->rqtp, &lrqts, sizeof(lrqts));
581 if (error != 0) {
582 LIN_SDT_PROBE1(time, linux_clock_nanosleep, copyin_error,
583 error);
584 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
585 return (error);
586 }
587
588 if (args->rmtp != NULL)
589 rmtp = &rmts;
590 else
591 rmtp = NULL;
592
593 error = linux_to_native_timespec(&rqts, &lrqts);
594 if (error != 0) {
595 LIN_SDT_PROBE1(time, linux_clock_nanosleep, conversion_error,
596 error);
597 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
598 return (error);
599 }
600 error = kern_clock_nanosleep(td, clockid, flags, &rqts, rmtp);
601 if (error == EINTR && (flags & TIMER_ABSTIME) == 0 &&
602 args->rmtp != NULL) {
603 error2 = native_to_linux_timespec(&lrmts, rmtp);
604 if (error2 != 0)
605 return (error2);
606 error2 = copyout(&lrmts, args->rmtp, sizeof(lrmts));
607 if (error2 != 0) {
608 LIN_SDT_PROBE1(time, linux_clock_nanosleep,
609 copyout_error, error2);
610 LIN_SDT_PROBE1(time, linux_clock_nanosleep,
611 return, error2);
612 return (error2);
613 }
614 }
615
616 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
617 return (error);
618 }
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