v4.19.13 snapshot.
diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h
new file mode 100644
index 0000000..6b56a22
--- /dev/null
+++ b/include/uapi/linux/time.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_TIME_H
+#define _UAPI_LINUX_TIME_H
+
+#include <linux/types.h>
+
+
+#ifndef _STRUCT_TIMESPEC
+#define _STRUCT_TIMESPEC
+struct timespec {
+ __kernel_time_t tv_sec; /* seconds */
+ long tv_nsec; /* nanoseconds */
+};
+#endif
+
+struct timeval {
+ __kernel_time_t tv_sec; /* seconds */
+ __kernel_suseconds_t tv_usec; /* microseconds */
+};
+
+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
+
+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 */
+};
+
+#ifndef __kernel_timespec
+struct __kernel_timespec {
+ __kernel_time64_t tv_sec; /* seconds */
+ long long tv_nsec; /* nanoseconds */
+};
+#endif
+
+#ifndef __kernel_itimerspec
+struct __kernel_itimerspec {
+ struct __kernel_timespec it_interval; /* timer period */
+ struct __kernel_timespec it_value; /* timer expiration */
+};
+#endif
+
+/*
+ * legacy timeval structure, only embedded in structures that
+ * traditionally used 'timeval' to pass time intervals (not absolute
+ * times). Do not add new users. If user space fails to compile
+ * here, this is probably because it is not y2038 safe and needs to
+ * be changed to use another interface.
+ */
+struct __kernel_old_timeval {
+ __kernel_long_t tv_sec;
+ __kernel_long_t tv_usec;
+};
+
+/*
+ * 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 /* _UAPI_LINUX_TIME_H */