1 /* $NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $ */
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 __KERNEL_RCSID(0, "$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $");
38 #include "opt_compat.h"
39 #include "opt_kdtrace.h"
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/ucred.h>
44 #include <sys/mount.h>
46 #include <sys/signal.h>
47 #include <sys/stdint.h>
48 #include <sys/syscallsubr.h>
49 #include <sys/sysproto.h>
51 #include <sys/systm.h>
55 #include <machine/../linux32/linux.h>
56 #include <machine/../linux32/linux32_proto.h>
58 #include <machine/../linux/linux.h>
59 #include <machine/../linux/linux_proto.h>
62 #include <compat/linux/linux_dtrace.h>
65 LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
68 * DTrace probes in this module.
70 LIN_SDT_PROBE_DEFINE2(time, native_to_linux_timespec, entry,
71 "struct l_timespec *", "struct timespec *");
72 LIN_SDT_PROBE_DEFINE0(time, native_to_linux_timespec, return);
73 LIN_SDT_PROBE_DEFINE2(time, linux_to_native_timespec, entry,
74 "struct timespec *", "struct l_timespec *");
75 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_timespec, return, "int");
76 LIN_SDT_PROBE_DEFINE2(time, linux_to_native_clockid, entry, "clockid_t *",
78 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, unsupported_clockid,
80 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, unknown_clockid,
82 LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, return, "int");
83 LIN_SDT_PROBE_DEFINE2(time, linux_clock_gettime, entry, "clockid_t",
84 "struct l_timespec *");
85 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, conversion_error, "int");
86 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, gettime_error, "int");
87 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, copyout_error, "int");
88 LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, return, "int");
89 LIN_SDT_PROBE_DEFINE2(time, linux_clock_settime, entry, "clockid_t",
90 "struct l_timespec *");
91 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, conversion_error, "int");
92 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, settime_error, "int");
93 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, copyin_error, "int");
94 LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, return, "int");
95 LIN_SDT_PROBE_DEFINE2(time, linux_clock_getres, entry, "clockid_t",
96 "struct l_timespec *");
97 LIN_SDT_PROBE_DEFINE0(time, linux_clock_getres, nullcall);
98 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, conversion_error, "int");
99 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, getres_error, "int");
100 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, copyout_error, "int");
101 LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, return, "int");
102 LIN_SDT_PROBE_DEFINE2(time, linux_nanosleep, entry, "const struct l_timespec *",
103 "struct l_timespec *");
104 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, conversion_error, "int");
105 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, nanosleep_error, "int");
106 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, copyout_error, "int");
107 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, copyin_error, "int");
108 LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, return, "int");
109 LIN_SDT_PROBE_DEFINE4(time, linux_clock_nanosleep, entry, "clockid_t", "int",
110 "struct l_timespec *", "struct l_timespec *");
111 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, conversion_error, "int");
112 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, nanosleep_error, "int");
113 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, copyout_error, "int");
114 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, copyin_error, "int");
115 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, unsupported_flags, "int");
116 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, unsupported_clockid, "int");
117 LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, return, "int");
119 static void native_to_linux_timespec(struct l_timespec *,
121 static int linux_to_native_timespec(struct timespec *,
122 struct l_timespec *);
123 static int linux_to_native_clockid(clockid_t *, clockid_t);
126 native_to_linux_timespec(struct l_timespec *ltp, struct timespec *ntp)
129 LIN_SDT_PROBE2(time, native_to_linux_timespec, entry, ltp, ntp);
131 ltp->tv_sec = ntp->tv_sec;
132 ltp->tv_nsec = ntp->tv_nsec;
134 LIN_SDT_PROBE0(time, native_to_linux_timespec, return);
138 linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
141 LIN_SDT_PROBE2(time, linux_to_native_timespec, entry, ntp, ltp);
143 if (ltp->tv_sec < 0 || ltp->tv_nsec > (l_long)999999999L) {
144 LIN_SDT_PROBE1(time, linux_to_native_timespec, return, EINVAL);
147 ntp->tv_sec = ltp->tv_sec;
148 ntp->tv_nsec = ltp->tv_nsec;
150 LIN_SDT_PROBE1(time, linux_to_native_timespec, return, 0);
155 linux_to_native_clockid(clockid_t *n, clockid_t l)
158 LIN_SDT_PROBE2(time, linux_to_native_clockid, entry, n, l);
161 case LINUX_CLOCK_REALTIME:
164 case LINUX_CLOCK_MONOTONIC:
165 *n = CLOCK_MONOTONIC;
167 case LINUX_CLOCK_PROCESS_CPUTIME_ID:
168 case LINUX_CLOCK_THREAD_CPUTIME_ID:
169 case LINUX_CLOCK_REALTIME_HR:
170 case LINUX_CLOCK_MONOTONIC_HR:
171 LIN_SDT_PROBE1(time, linux_to_native_clockid,
172 unsupported_clockid, l);
173 LIN_SDT_PROBE1(time, linux_to_native_clockid, return, EINVAL);
177 LIN_SDT_PROBE1(time, linux_to_native_clockid,
179 LIN_SDT_PROBE1(time, linux_to_native_clockid, return, EINVAL);
184 LIN_SDT_PROBE1(time, linux_to_native_clockid, return, 0);
189 linux_clock_gettime(struct thread *td, struct linux_clock_gettime_args *args)
191 struct l_timespec lts;
193 clockid_t nwhich = 0; /* XXX: GCC */
196 LIN_SDT_PROBE2(time, linux_clock_gettime, entry, args->which, args->tp);
198 error = linux_to_native_clockid(&nwhich, args->which);
200 LIN_SDT_PROBE1(time, linux_clock_gettime, conversion_error,
202 LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
205 error = kern_clock_gettime(td, nwhich, &tp);
207 LIN_SDT_PROBE1(time, linux_clock_gettime, gettime_error, error);
208 LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
211 native_to_linux_timespec(<s, &tp);
213 error = copyout(<s, args->tp, sizeof lts);
215 LIN_SDT_PROBE1(time, linux_clock_gettime, copyout_error, error);
217 LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
222 linux_clock_settime(struct thread *td, struct linux_clock_settime_args *args)
225 struct l_timespec lts;
227 clockid_t nwhich = 0; /* XXX: GCC */
229 LIN_SDT_PROBE2(time, linux_clock_settime, entry, args->which, args->tp);
231 error = linux_to_native_clockid(&nwhich, args->which);
233 LIN_SDT_PROBE1(time, linux_clock_settime, conversion_error,
235 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
238 error = copyin(args->tp, <s, sizeof lts);
240 LIN_SDT_PROBE1(time, linux_clock_settime, copyin_error, error);
241 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
244 error = linux_to_native_timespec(&ts, <s);
246 LIN_SDT_PROBE1(time, linux_clock_settime, conversion_error,
248 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
252 error = kern_clock_settime(td, nwhich, &ts);
254 LIN_SDT_PROBE1(time, linux_clock_settime, settime_error, error);
256 LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
261 linux_clock_getres(struct thread *td, struct linux_clock_getres_args *args)
264 struct l_timespec lts;
266 clockid_t nwhich = 0; /* XXX: GCC */
268 LIN_SDT_PROBE2(time, linux_clock_getres, entry, args->which, args->tp);
270 if (args->tp == NULL) {
271 LIN_SDT_PROBE0(time, linux_clock_getres, nullcall);
272 LIN_SDT_PROBE1(time, linux_clock_getres, return, 0);
276 error = linux_to_native_clockid(&nwhich, args->which);
278 LIN_SDT_PROBE1(time, linux_clock_getres, conversion_error,
280 LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
283 error = kern_clock_getres(td, nwhich, &ts);
285 LIN_SDT_PROBE1(time, linux_clock_getres, getres_error, error);
286 LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
289 native_to_linux_timespec(<s, &ts);
291 error = copyout(<s, args->tp, sizeof lts);
293 LIN_SDT_PROBE1(time, linux_clock_getres, copyout_error, error);
295 LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
300 linux_nanosleep(struct thread *td, struct linux_nanosleep_args *args)
302 struct timespec *rmtp;
303 struct l_timespec lrqts, lrmts;
304 struct timespec rqts, rmts;
307 LIN_SDT_PROBE2(time, linux_nanosleep, entry, args->rqtp, args->rmtp);
309 error = copyin(args->rqtp, &lrqts, sizeof lrqts);
311 LIN_SDT_PROBE1(time, linux_nanosleep, copyin_error, error);
312 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
316 if (args->rmtp != NULL)
321 error = linux_to_native_timespec(&rqts, &lrqts);
323 LIN_SDT_PROBE1(time, linux_nanosleep, conversion_error, error);
324 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
327 error = kern_nanosleep(td, &rqts, rmtp);
329 LIN_SDT_PROBE1(time, linux_nanosleep, nanosleep_error, error);
330 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
334 if (args->rmtp != NULL) {
335 native_to_linux_timespec(&lrmts, rmtp);
336 error = copyout(&lrmts, args->rmtp, sizeof(lrmts));
338 LIN_SDT_PROBE1(time, linux_nanosleep, copyout_error,
340 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
345 LIN_SDT_PROBE1(time, linux_nanosleep, return, 0);
350 linux_clock_nanosleep(struct thread *td, struct linux_clock_nanosleep_args *args)
352 struct timespec *rmtp;
353 struct l_timespec lrqts, lrmts;
354 struct timespec rqts, rmts;
357 LIN_SDT_PROBE4(time, linux_clock_nanosleep, entry, args->which,
358 args->flags, args->rqtp, args->rmtp);
360 if (args->flags != 0) {
361 /* XXX deal with TIMER_ABSTIME */
362 LIN_SDT_PROBE1(time, linux_clock_nanosleep, unsupported_flags,
364 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, EINVAL);
365 return (EINVAL); /* XXX deal with TIMER_ABSTIME */
368 if (args->which != LINUX_CLOCK_REALTIME) {
369 LIN_SDT_PROBE1(time, linux_clock_nanosleep, unsupported_clockid,
371 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, EINVAL);
375 error = copyin(args->rqtp, &lrqts, sizeof lrqts);
377 LIN_SDT_PROBE1(time, linux_clock_nanosleep, copyin_error,
379 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
383 if (args->rmtp != NULL)
388 error = linux_to_native_timespec(&rqts, &lrqts);
390 LIN_SDT_PROBE1(time, linux_clock_nanosleep, conversion_error,
392 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
395 error = kern_nanosleep(td, &rqts, rmtp);
397 LIN_SDT_PROBE1(time, linux_clock_nanosleep, nanosleep_error,
399 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
403 if (args->rmtp != NULL) {
404 native_to_linux_timespec(&lrmts, rmtp);
405 error = copyout(&lrmts, args->rmtp, sizeof lrmts );
407 LIN_SDT_PROBE1(time, linux_clock_nanosleep,
408 copyout_error, error);
409 LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
414 LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, 0);