NetBSD-5.0.2/sys/compat/linux32/common/linux32_time.c
/* $NetBSD: linux32_time.c,v 1.21.4.1 2008/11/20 03:03:05 snj Exp $ */
/*-
* Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Emmanuel Dreyfus
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: linux32_time.c,v 1.21.4.1 2008/11/20 03:03:05 snj Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/fstypes.h>
#include <sys/signal.h>
#include <sys/dirent.h>
#include <sys/kauth.h>
#include <sys/kernel.h>
#include <sys/fcntl.h>
#include <sys/namei.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/resourcevar.h>
#include <sys/ucred.h>
#include <sys/swap.h>
#include <sys/vfs_syscalls.h>
#include <sys/timetc.h>
#include <machine/types.h>
#include <sys/syscallargs.h>
#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_conv.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_machdep.h>
#include <compat/linux/common/linux_misc.h>
#include <compat/linux/common/linux_oldolduname.h>
#include <compat/linux/common/linux_sched.h>
#include <compat/linux/linux_syscallargs.h>
#include <compat/linux32/common/linux32_types.h>
#include <compat/linux32/common/linux32_signal.h>
#include <compat/linux32/common/linux32_machdep.h>
#include <compat/linux32/common/linux32_sysctl.h>
#include <compat/linux32/common/linux32_socketcall.h>
#include <compat/linux32/linux32_syscallargs.h>
extern struct timezone linux_sys_tz;
static __inline void
native_to_linux32_timespec(struct linux32_timespec *, struct timespec *);
static __inline void
linux32_to_native_timespec(struct timespec *, struct linux32_timespec *);
int
linux32_sys_gettimeofday(struct lwp *l, const struct linux32_sys_gettimeofday_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_timevalp_t) tp;
syscallarg(netbsd32_timezonep_t) tzp;
} */
struct timeval tv;
struct netbsd32_timeval tv32;
int error;
if (SCARG_P32(uap, tp) != NULL) {
microtime(&tv);
netbsd32_from_timeval(&tv, &tv32);
if ((error = copyout(&tv32, SCARG_P32(uap, tp),
sizeof(tv32))) != 0)
return error;
}
/* timezone size does not change */
if (SCARG_P32(uap, tzp) != NULL) {
if ((error = copyout(&linux_sys_tz, SCARG_P32(uap, tzp),
sizeof(linux_sys_tz))) != 0)
return error;
}
return 0;
}
int
linux32_sys_settimeofday(struct lwp *l, const struct linux32_sys_settimeofday_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_timevalp_t) tp;
syscallarg(netbsd32_timezonep_t) tzp;
} */
struct linux_sys_settimeofday_args ua;
NETBSD32TOP_UAP(tp, struct timeval);
NETBSD32TOP_UAP(tzp, struct timezone);
return linux_sys_settimeofday(l, &ua, retval);
}
int
linux32_sys_time(struct lwp *l, const struct linux32_sys_time_args *uap, register_t *retval)
{
/* {
syscallcarg(linux32_timep_t) t;
} */
struct timeval atv;
linux32_time_t tt;
int error;
microtime(&atv);
tt = (linux32_time_t)atv.tv_sec;
if (SCARG_P32(uap, t) && (error = copyout(&tt,
SCARG_P32(uap, t), sizeof(tt))))
return error;
retval[0] = tt;
return 0;
}
static inline linux32_clock_t
timeval_to_clock_t(struct timeval *tv)
{
return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
}
#define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz))
int
linux32_sys_times(struct lwp *l, const struct linux32_sys_times_args *uap, register_t *retval)
{
/* {
syscallarg(linux32_tmsp_t) tms;
} */
struct proc *p = l->l_proc;
struct timeval t;
int error;
if (SCARG_P32(uap, tms)) {
struct linux32_tms ltms32;
struct rusage ru;
mutex_enter(p->p_lock);
calcru(p, &ru.ru_utime, &ru.ru_stime, NULL, NULL);
ltms32.ltms32_utime = CONVTCK(ru.ru_utime);
ltms32.ltms32_stime = CONVTCK(ru.ru_stime);
ltms32.ltms32_cutime = CONVTCK(p->p_stats->p_cru.ru_utime);
ltms32.ltms32_cstime = CONVTCK(p->p_stats->p_cru.ru_stime);
mutex_exit(p->p_lock);
error = copyout(<ms32, SCARG_P32(uap, tms), sizeof(ltms32));
if (error)
return error;
}
getmicrouptime(&t);
retval[0] = ((linux32_clock_t)(CONVTCK(t)));
return 0;
}
#undef CONVTCK
int
linux32_sys_stime(struct lwp *l, const struct linux32_sys_stime_args *uap, register_t *retval)
{
/* {
syscallarg(linux32_timep_t) t;
} */
struct timespec ts;
linux32_time_t tt32;
int error;
if ((error = copyin(&tt32, SCARG_P32(uap, t), sizeof tt32)) != 0)
return error;
ts.tv_sec = (long)tt32;
ts.tv_nsec = 0;
return settime(l->l_proc, &ts);
}
int
linux32_sys_utime(struct lwp *l, const struct linux32_sys_utime_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(linux32_utimbufp_t) times;
} */
struct timeval tv[2], *tvp;
struct linux32_utimbuf lut;
int error;
if (SCARG_P32(uap, times) != NULL) {
if ((error = copyin(SCARG_P32(uap, times), &lut, sizeof lut)))
return error;
tv[0].tv_sec = (long)lut.l_actime;
tv[0].tv_usec = 0;
tv[1].tv_sec = (long)lut.l_modtime;
tv[1].tv_usec = 0;
tvp = tv;
} else {
tvp = NULL;
}
return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
tvp, UIO_SYSSPACE);
}
static __inline void
native_to_linux32_timespec(struct linux32_timespec *ltp, struct timespec *ntp)
{
ltp->tv_sec = ntp->tv_sec;
ltp->tv_nsec = ntp->tv_nsec;
}
static __inline void
linux32_to_native_timespec(struct timespec *ntp, struct linux32_timespec *ltp)
{
ntp->tv_sec = ltp->tv_sec;
ntp->tv_nsec = ltp->tv_nsec;
}
int
linux32_sys_nanosleep(struct lwp *l,
const struct linux32_sys_nanosleep_args *uap, register_t *retval)
{
/* {
syscallarg(linux32_timespecp_t) rqtp;
syscallarg(linux32_timespecp_t) rmtp;
} */
struct timespec rqts, rmts;
struct linux32_timespec lrqts, lrmts;
int error, error1;
error = copyin(SCARG_P32(uap, rqtp), &lrqts, sizeof(lrqts));
if (error != 0)
return error;
linux32_to_native_timespec(&rqts, &lrqts);
error = nanosleep1(l, &rqts, SCARG_P32(uap, rmtp) ? &rmts : NULL);
if (SCARG_P32(uap, rmtp) == NULL || (error != 0 && error != EINTR))
return error;
native_to_linux32_timespec(&lrmts, &rmts);
error1 = copyout(&lrmts, SCARG_P32(uap, rmtp), sizeof(lrmts));
return error1 ? error1 : error;
}
int
linux32_sys_clock_settime(struct lwp *l,
const struct linux32_sys_clock_settime_args *uap, register_t *retval)
{
/* {
syscallarg(clockid_t) which;
syscallarg(linux32_timespecp_t) tp;
} */
int error;
struct timespec ts;
struct linux32_timespec lts;
switch (SCARG(uap, which)) {
case LINUX_CLOCK_REALTIME:
break;
default:
return EINVAL;
}
if ((error = copyin(SCARG_P32(uap, tp), <s, sizeof lts)))
return error;
linux32_to_native_timespec(&ts, <s);
return settime(l->l_proc, &ts);
}
int
linux32_sys_clock_gettime(struct lwp *l,
const struct linux32_sys_clock_gettime_args *uap, register_t *retval)
{
/* {
syscallarg(clockid_t) which;
syscallarg(linux32_timespecp_t) tp;
} */
struct timespec ts;
struct linux32_timespec lts;
switch (SCARG(uap, which)) {
case LINUX_CLOCK_REALTIME:
nanotime(&ts);
break;
case LINUX_CLOCK_MONOTONIC:
nanouptime(&ts);
break;
default:
return EINVAL;
}
native_to_linux32_timespec(<s, &ts);
return copyout(<s, SCARG_P32(uap, tp), sizeof lts);
}
int
linux32_sys_clock_getres(struct lwp *l,
const struct linux32_sys_clock_getres_args *uap, register_t *retval)
{
/* {
syscallarg(clockid_t) which;
syscallarg(linux32_timespecp_t) tp;
} */
int error;
clockid_t id;
struct timespec ts;
struct linux32_timespec lts;
error = linux_to_native_clockid(&id, SCARG(uap, which));
if (error != 0 || SCARG_P32(uap, tp) == NULL)
return error;
ts.tv_sec = 0;
ts.tv_nsec = 1000000000 / tc_getfrequency();
native_to_linux32_timespec(<s, &ts);
return copyout(<s, SCARG_P32(uap, tp), sizeof lts);
return 0;
}