MFC r271743:

  Implement most of timer_{create,settime,gettime,getoverrun,delete}
  for amd64/linux32.  Fix the entirely bogus (untested) version from
  r161310 for i386/linux using the same shared code in compat/linux.

  It is unclear to me if we could support more clock mappings but
  the current set allows me to successfully run commercial
  32bit linux software under linuxolator on amd64.

  Reviewed by:			jhb
  Differential Revision:	D784
Sponsored by:			DARPA, AFRL
Approved by:			re (gjb)

1 files changed, 97 insertions, 0 deletions

diff --git a/sys/compat/linux/linux_timer.h b/sys/compat/linux/linux_timer.h
new file mode 100644
index 0000000..4f64ee5
--- /dev/null
+++ b/sys/compat/linux/linux_timer.h
@@ -0,0 +1,97 @@
+/*-
+ * Copyright (c) 2014 Bjoern A. Zeeb
+ * All rights reserved.
+ *
+ * This software was developed by SRI International and the University of
+ * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249
+ * ("MRC2"), as part of the DARPA MRC research programme.
+ *
+ * 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 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef	_LINUX_TIMER_H
+#define	_LINUX_TIMER_H
+
+#ifndef	__LINUX_ARCH_SIGEV_PREAMBLE_SIZE
+#define	__LINUX_ARCH_SIGEV_PREAMBLE_SIZE	\
+	(sizeof(l_int) * 2 + sizeof(l_sigval_t))
+#endif
+
+#define	LINUX_SIGEV_MAX_SIZE			64
+#define	LINUX_SIGEV_PAD_SIZE			\
+	((LINUX_SIGEV_MAX_SIZE - __LINUX_ARCH_SIGEV_PREAMBLE_SIZE) / \
+	sizeof(l_int))
+
+#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_MONOTONIC_RAW		4
+#define	LINUX_CLOCK_REALTIME_COARSE		5
+#define	LINUX_CLOCK_MONOTONIC_COARSE		6
+#define	LINUX_CLOCK_BOOTTIME			7
+#define	LINUX_CLOCK_REALTIME_ALARM		8
+#define	LINUX_CLOCK_BOOTTIME_ALARM		9
+#define	LINUX_CLOCK_SGI_CYCLE			10
+#define	LINUX_CLOCK_TAI				11
+
+#define	L_SIGEV_SIGNAL				0
+#define	L_SIGEV_NONE				1
+#define	L_SIGEV_THREAD				2
+#define	L_SIGEV_THREAD_ID			4
+
+#define	TS_CP(src,dst,fld) do {			\
+	CP((src).fld,(dst).fld,tv_sec);		\
+	CP((src).fld,(dst).fld,tv_nsec);	\
+} while (0)
+
+#define	ITS_CP(src, dst) do {			\
+	TS_CP((src), (dst), it_interval);	\
+	TS_CP((src), (dst), it_value);		\
+} while (0)
+
+struct l_sigevent {
+	l_sigval_t sigev_value;
+	l_int sigev_signo;
+	l_int sigev_notify;
+	union {
+		l_int _pad[LINUX_SIGEV_PAD_SIZE];
+		l_int _tid;
+		struct {
+			l_uintptr_t _function;
+			l_uintptr_t _attribute;
+		} _l_sigev_thread;
+	} _l_sigev_un;
+}
+#if defined(__amd64__) && defined(COMPAT_LINUX32)
+__packed
+#endif
+;
+
+struct l_itimerspec {
+	struct l_timespec it_interval;
+	struct l_timespec it_value;
+};
+
+#endif	/* _LINUX_TIMER_H */