Add some new files needed for linux 2.6.x compatibility.

Please don't style(9) the NetBSD code, we want to stay in sync. Not imported
on a vendor branch since we need local changes.

Sponsored by:	Google SoC 2006
Submitted by:	rdivacky
With help from:	manu@NetBSD.org
Obtained from:	NetBSD (linux_{futex,time}.*)

1 files changed, 208 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..aee0554
--- /dev/null
+++ b/sys/compat/linux/linux_time.c
@@ -0,0 +1,208 @@
+/*	$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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the NetBSD
+ *      Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * 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 void 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 void
+linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
+{
+	ntp->tv_sec = ltp->tv_sec;
+	ntp->tv_nsec = ltp->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:
+		return EINVAL;
+	}
+
+	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(&lts, &tp);
+
+	return copyout(&lts, 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, &lts, sizeof lts);
+	if (error != 0)
+		return error;
+
+	linux_to_native_timespec(&ts, &lts);
+
+	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(&lts, &ts);
+	
+	return copyout(&lts, args->tp, sizeof lts);
+}
+
+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;
+
+	linux_to_native_timespec(&rqts, &lrqts);
+
+	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;
+}