ebpf: experiments.danderson/ebpf

1 files changed, 73 insertions, 0 deletions

diff --git a/ebpf/include/linux/time.h b/ebpf/include/linux/time.h
new file mode 100644
index 000000000..5f2d52fae
--- /dev/null
+++ b/ebpf/include/linux/time.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_TIME_H
+#define _LINUX_TIME_H
+
+#include <linux/types.h>
+#include <linux/time_types.h>
+
+#ifndef _STRUCT_TIMESPEC
+#define _STRUCT_TIMESPEC
+struct timespec {
+	__kernel_old_time_t	tv_sec;		/* seconds */
+	long			tv_nsec;	/* nanoseconds */
+};
+#endif
+
+struct timeval {
+	__kernel_old_time_t	tv_sec;		/* seconds */
+	__kernel_suseconds_t	tv_usec;	/* microseconds */
+};
+
+struct itimerspec {
+	struct timespec it_interval;/* timer period */
+	struct timespec it_value;	/* timer expiration */
+};
+
+struct itimerval {
+	struct timeval it_interval;/* timer interval */
+	struct timeval it_value;	/* current value */
+};
+
+struct timezone {
+	int	tz_minuteswest;	/* minutes west of Greenwich */
+	int	tz_dsttime;	/* type of dst correction */
+};
+
+/*
+ * Names of the interval timers, and structure
+ * defining a timer setting:
+ */
+#define	ITIMER_REAL		0
+#define	ITIMER_VIRTUAL		1
+#define	ITIMER_PROF		2
+
+/*
+ * The IDs of the various system clocks (for POSIX.1b interval timers):
+ */
+#define CLOCK_REALTIME			0
+#define CLOCK_MONOTONIC			1
+#define CLOCK_PROCESS_CPUTIME_ID	2
+#define CLOCK_THREAD_CPUTIME_ID		3
+#define CLOCK_MONOTONIC_RAW		4
+#define CLOCK_REALTIME_COARSE		5
+#define CLOCK_MONOTONIC_COARSE		6
+#define CLOCK_BOOTTIME			7
+#define CLOCK_REALTIME_ALARM		8
+#define CLOCK_BOOTTIME_ALARM		9
+/*
+ * The driver implementing this got removed. The clock ID is kept as a
+ * place holder. Do not reuse!
+ */
+#define CLOCK_SGI_CYCLE			10
+#define CLOCK_TAI			11
+
+#define MAX_CLOCKS			16
+#define CLOCKS_MASK			(CLOCK_REALTIME | CLOCK_MONOTONIC)
+#define CLOCKS_MONO			CLOCK_MONOTONIC
+
+/*
+ * The various flags for setting POSIX.1b interval timers:
+ */
+#define TIMER_ABSTIME			0x01
+
+#endif /* _LINUX_TIME_H */