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.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
38 #include "opt_compat.h"
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/fcntl.h>
43 #include <sys/imgact_aout.h>
44 #include <sys/kernel.h>
45 #include <sys/kern_syscall.h>
51 #include <sys/nlookup.h>
52 #include <sys/blist.h>
53 #include <sys/resourcevar.h>
54 #include <sys/signalvar.h>
56 #include <sys/sysctl.h>
57 #include <sys/sysproto.h>
59 #include <sys/timers.h>
60 #include <sys/unistd.h>
61 #include <sys/vmmeter.h>
62 #include <sys/vnode.h>
65 #include <sys/signal2.h>
66 #include <sys/thread2.h>
67 #include <sys/mplock2.h>
69 #include <machine/frame.h>
70 #include <machine/limits.h>
71 #include <machine/psl.h>
72 #include <machine/sysarch.h>
74 #include <machine/segments.h>
77 #include <sys/sched.h>
79 #include <emulation/linux/linux_sysproto.h>
80 #include <arch_linux/linux.h>
81 #include <arch_linux/linux_proto.h>
82 #include "linux_mib.h"
83 #include "linux_util.h"
85 static void native_to_linux_timespec(struct l_timespec *,
87 static int linux_to_native_timespec(struct timespec *,
89 static int linux_to_native_clockid(clockid_t *, clockid_t);
92 native_to_linux_timespec(struct l_timespec *ltp, struct timespec *ntp)
94 ltp->tv_sec = ntp->tv_sec;
95 ltp->tv_nsec = ntp->tv_nsec;
99 linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
101 if (ltp->tv_sec < 0 || ltp->tv_nsec > (l_long)999999999L)
103 ntp->tv_sec = ltp->tv_sec;
104 ntp->tv_nsec = ltp->tv_nsec;
110 linux_to_native_clockid(clockid_t *n, clockid_t l)
113 case LINUX_CLOCK_REALTIME:
116 case LINUX_CLOCK_MONOTONIC:
117 *n = CLOCK_MONOTONIC;
119 case LINUX_CLOCK_PROCESS_CPUTIME_ID:
120 case LINUX_CLOCK_THREAD_CPUTIME_ID:
121 case LINUX_CLOCK_REALTIME_HR:
122 case LINUX_CLOCK_MONOTONIC_HR:
132 sys_linux_clock_gettime(struct linux_clock_gettime_args *args)
134 struct l_timespec lts;
136 clockid_t nwhich = 0; /* XXX: GCC */
139 error = linux_to_native_clockid(&nwhich, args->which);
142 error = kern_clock_gettime(nwhich, &tp);
145 native_to_linux_timespec(<s, &tp);
147 return (copyout(<s, args->tp, sizeof lts));
151 sys_linux_clock_settime(struct linux_clock_settime_args *args)
154 struct l_timespec lts;
156 clockid_t nwhich = 0; /* XXX: GCC */
158 error = linux_to_native_clockid(&nwhich, args->which);
161 error = copyin(args->tp, <s, sizeof lts);
164 error = linux_to_native_timespec(&ts, <s);
168 return (kern_clock_settime(nwhich, &ts));
172 sys_linux_clock_getres(struct linux_clock_getres_args *args)
175 struct l_timespec lts;
177 clockid_t nwhich = 0; /* XXX: GCC */
179 if (args->tp == NULL)
182 error = linux_to_native_clockid(&nwhich, args->which);
185 error = kern_clock_getres(nwhich, &ts);
188 native_to_linux_timespec(<s, &ts);
190 return (copyout(<s, args->tp, sizeof lts));
194 sys_linux_clock_nanosleep(struct linux_clock_nanosleep_args *args)
196 struct timespec *rmtp;
197 struct l_timespec lrqts, lrmts;
198 struct timespec rqts, rmts;
201 if (args->flags != 0)
202 return (EINVAL); /* XXX deal with TIMER_ABSTIME */
204 if (args->which != LINUX_CLOCK_REALTIME)
207 error = copyin(args->rqtp, &lrqts, sizeof lrqts);
211 if (args->rmtp != NULL)
216 error = linux_to_native_timespec(&rqts, &lrqts);
219 error = nanosleep1(&rqts, rmtp);
223 if (args->rmtp != NULL) {
224 native_to_linux_timespec(&lrmts, rmtp);
225 error = copyout(&lrmts, args->rmtp, sizeof lrmts );