diff options
Diffstat (limited to 'sys/compat/linux/linux_time.c')
| -rw-r--r-- | sys/compat/linux/linux_time.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_time.c b/sys/compat/linux/linux_time.c new file mode 100644 index 0000000..8800d67 --- /dev/null +++ b/sys/compat/linux/linux_time.c @@ -0,0 +1,239 @@ +/* $NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $ */ + +/*- + * Copyright (c) 2001 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Emmanuel Dreyfus. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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> +__FBSDID("$FreeBSD$"); +#if 0 +__KERNEL_RCSID(0, "$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp $"); +#endif + +#include "opt_compat.h" + +#include <sys/param.h> +#include <sys/ucred.h> +#include <sys/mount.h> +#include <sys/signal.h> +#include <sys/stdint.h> +#include <sys/syscallsubr.h> +#include <sys/sysproto.h> +#include <sys/time.h> +#include <sys/systm.h> +#include <sys/proc.h> + +#ifdef COMPAT_LINUX32 +#include <machine/../linux32/linux.h> +#include <machine/../linux32/linux32_proto.h> +#else +#include <machine/../linux/linux.h> +#include <machine/../linux/linux_proto.h> +#endif + +static void native_to_linux_timespec(struct l_timespec *, + struct timespec *); +static int linux_to_native_timespec(struct timespec *, + struct l_timespec *); +static int linux_to_native_clockid(clockid_t *, clockid_t); + +static void +native_to_linux_timespec(struct l_timespec *ltp, struct timespec *ntp) +{ + ltp->tv_sec = ntp->tv_sec; + ltp->tv_nsec = ntp->tv_nsec; +} + +static int +linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp) +{ + if (ltp->tv_sec < 0 || ltp->tv_nsec > (l_long)999999999L) + return (EINVAL); + ntp->tv_sec = ltp->tv_sec; + ntp->tv_nsec = ltp->tv_nsec; + + return (0); +} + +static int +linux_to_native_clockid(clockid_t *n, clockid_t l) +{ + switch (l) { + case LINUX_CLOCK_REALTIME: + *n = CLOCK_REALTIME; + break; + case LINUX_CLOCK_MONOTONIC: + *n = CLOCK_MONOTONIC; + break; + case LINUX_CLOCK_PROCESS_CPUTIME_ID: + case LINUX_CLOCK_THREAD_CPUTIME_ID: + case LINUX_CLOCK_REALTIME_HR: + case LINUX_CLOCK_MONOTONIC_HR: + default: + return (EINVAL); + break; + } + + return (0); +} + +int +linux_clock_gettime(struct thread *td, struct linux_clock_gettime_args *args) +{ + struct l_timespec lts; + int error; + clockid_t nwhich = 0; /* XXX: GCC */ + struct timespec tp; + + error = linux_to_native_clockid(&nwhich, args->which); + if (error != 0) + return (error); + error = kern_clock_gettime(td, nwhich, &tp); + if (error != 0) + return (error); + native_to_linux_timespec(<s, &tp); + + return (copyout(<s, args->tp, sizeof lts)); +} + +int +linux_clock_settime(struct thread *td, struct linux_clock_settime_args *args) +{ + struct timespec ts; + struct l_timespec lts; + int error; + clockid_t nwhich = 0; /* XXX: GCC */ + + error = linux_to_native_clockid(&nwhich, args->which); + if (error != 0) + return (error); + error = copyin(args->tp, <s, sizeof lts); + if (error != 0) + return (error); + error = linux_to_native_timespec(&ts, <s); + if (error != 0) + return (error); + + return (kern_clock_settime(td, nwhich, &ts)); +} + +int +linux_clock_getres(struct thread *td, struct linux_clock_getres_args *args) +{ + struct timespec ts; + struct l_timespec lts; + int error; + clockid_t nwhich = 0; /* XXX: GCC */ + + if (args->tp == NULL) + return (0); + + error = linux_to_native_clockid(&nwhich, args->which); + if (error != 0) + return (error); + error = kern_clock_getres(td, nwhich, &ts); + if (error != 0) + return (error); + native_to_linux_timespec(<s, &ts); + + return (copyout(<s, args->tp, sizeof lts)); +} + +int +linux_nanosleep(struct thread *td, struct linux_nanosleep_args *args) +{ + struct timespec *rmtp; + struct l_timespec lrqts, lrmts; + struct timespec rqts, rmts; + int error; + + error = copyin(args->rqtp, &lrqts, sizeof lrqts); + if (error != 0) + return (error); + + if (args->rmtp != NULL) + rmtp = &rmts; + else + rmtp = NULL; + + error = linux_to_native_timespec(&rqts, &lrqts); + if (error != 0) + return (error); + error = kern_nanosleep(td, &rqts, rmtp); + if (error != 0) + return (error); + + if (args->rmtp != NULL) { + native_to_linux_timespec(&lrmts, rmtp); + error = copyout(&lrmts, args->rmtp, sizeof(lrmts)); + if (error != 0) + return (error); + } + + return (0); +} + +int +linux_clock_nanosleep(struct thread *td, struct linux_clock_nanosleep_args *args) +{ + struct timespec *rmtp; + struct l_timespec lrqts, lrmts; + struct timespec rqts, rmts; + int error; + + if (args->flags != 0) + return (EINVAL); /* XXX deal with TIMER_ABSTIME */ + + if (args->which != LINUX_CLOCK_REALTIME) + return (EINVAL); + + error = copyin(args->rqtp, &lrqts, sizeof lrqts); + if (error != 0) + return (error); + + if (args->rmtp != NULL) + rmtp = &rmts; + else + rmtp = NULL; + + error = linux_to_native_timespec(&rqts, &lrqts); + if (error != 0) + return (error); + error = kern_nanosleep(td, &rqts, rmtp); + if (error != 0) + return (error); + + if (args->rmtp != NULL) { + native_to_linux_timespec(&lrmts, rmtp); + error = copyout(&lrmts, args->rmtp, sizeof lrmts ); + if (error != 0) + return (error); + } + + return (0); +} |
