diff options
Diffstat (limited to 'sys/compat/linux/linux_time.c')
| -rw-r--r-- | sys/compat/linux/linux_time.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_time.c b/sys/compat/linux/linux_time.c new file mode 100644 index 00000000000..abb6aae0012 --- /dev/null +++ b/sys/compat/linux/linux_time.c @@ -0,0 +1,122 @@ +/* $OpenBSD: linux_time.c,v 1.1 2011/02/10 11:58:43 pirofti Exp $ */ +/* + * Copyright (c) 2010 Paul Irofti <pirofti@openbsd.org> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/param.h> +#include <sys/ucred.h> +#include <sys/mount.h> +#include <sys/signal.h> +#include <sys/stdint.h> +#include <sys/time.h> +#include <sys/systm.h> +#include <sys/proc.h> + +#include <sys/syscallargs.h> + +#include <compat/linux/linux_types.h> +#include <compat/linux/linux_fcntl.h> +#include <compat/linux/linux_misc.h> +#include <compat/linux/linux_mmap.h> +#include <compat/linux/linux_sched.h> +#include <compat/linux/linux_signal.h> +#include <compat/linux/linux_syscallargs.h> +#include <compat/linux/linux_util.h> +#include <compat/linux/linux_dirent.h> +#include <compat/linux/linux_emuldata.h> + +#define LINUX_CLOCK_REALTIME 0 +#define LINUX_CLOCK_MONOTONIC 1 +#define LINUX_CLOCK_PROCESS_CPUTIME_ID 2 +#define LINUX_CLOCK_THREAD_CPUTIME_ID 3 +#define LINUX_CLOCK_REALTIME_HR 4 +#define LINUX_CLOCK_MONOTONIC_HR 5 + +static void native_to_linux_timespec(struct l_timespec *, struct 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_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_sys_clock_getres(struct proc *p, void *v, register_t *retval) +{ + struct linux_sys_clock_getres_args *uap = v; + struct sys_clock_getres_args cgr; + + int error; + + if (SCARG(uap, tp) == NULL) + return 0; + + error = linux_to_native_clockid(&SCARG(&cgr, clock_id), + SCARG(uap, which)); + if (error != 0) + return error; + + SCARG(&cgr, tp) = (struct timespec *)SCARG(uap, tp); + return sys_clock_getres(p, &cgr, retval); +} + +int +linux_sys_clock_gettime(struct proc *p, void *v, register_t *retval) +{ + struct linux_sys_clock_gettime_args *uap = v; + + clockid_t clockid = 0; + + struct timespec tp; + struct l_timespec ltp; + + int error; + + error = linux_to_native_clockid(&clockid, SCARG(uap, which)); + if (error != 0) + return error; + + error = clock_gettime(p, clockid, &tp); + if (error != 0) + return error; + + native_to_linux_timespec(<p, &tp); + + return (copyout(<p, SCARG(uap, tp), sizeof ltp)); +} |