lib/nolibc: Import sys/timerfd.h header from musl

This change imports the sys/timerfd.h header from musl 1.2.4, needed for
type definitions required to implement timerfd files.

Checkpatch-Ignore: FUNCTION_ARGUMENTS
Signed-off-by: Andrei Tatar <andrei@unikraft.io>

diff --git a/lib/nolibc/musl-imported/include/sys/timerfd.h b/lib/nolibc/musl-imported/include/sys/timerfd.h
new file mode 100644 (file)
index 0000000..1b832cd
--- /dev/null
+++ b/lib/nolibc/musl-imported/include/sys/timerfd.h
@@ -0,0 +1,32 @@
+#ifndef _SYS_TIMERFD_H
+#define _SYS_TIMERFD_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <time.h>
+#include <fcntl.h>
+
+#define TFD_NONBLOCK O_NONBLOCK
+#define TFD_CLOEXEC O_CLOEXEC
+
+#define TFD_TIMER_ABSTIME 1
+#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
+
+struct itimerspec;
+
+int timerfd_create(int, int);
+int timerfd_settime(int, int, const struct itimerspec *, struct itimerspec *);
+int timerfd_gettime(int, struct itimerspec *);
+
+#if _REDIR_TIME64
+__REDIR(timerfd_settime, __timerfd_settime64);
+__REDIR(timerfd_gettime, __timerfd_gettime64);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif