1 files changed, 71 insertions, 0 deletions
diff --git a/tools/include/nolibc/sys/timerfd.h b/tools/include/nolibc/sys/timerfd.h
new file mode 100644
index 000000000000..cb7fef37a7a4
--- /dev/null
+++ b/tools/include/nolibc/sys/timerfd.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * timerfd definitions for NOLIBC
+ * Copyright (C) 2025 Thomas Weißschuh <thomas.weissschuh@linutronix.de>
+ */
+
+/* make sure to include all global symbols */
+#include "../nolibc.h"
+
+#ifndef _NOLIBC_SYS_TIMERFD_H
+#define _NOLIBC_SYS_TIMERFD_H
+
+#include "../sys.h"
+#include "../time.h"
+
+#include <linux/timerfd.h>
+
+
+static __attribute__((unused))
+int _sys_timerfd_create(int clockid, int flags)
+{
+	return __nolibc_syscall2(__NR_timerfd_create, clockid, flags);
+}
+
+static __attribute__((unused))
+int timerfd_create(int clockid, int flags)
+{
+	return __sysret(_sys_timerfd_create(clockid, flags));
+}
+
+
+static __attribute__((unused))
+int _sys_timerfd_gettime(int fd, struct itimerspec *curr_value)
+{
+#if defined(__NR_timerfd_gettime64)
+	__nolibc_assert_time64_type(curr_value->it_value.tv_sec);
+	return __nolibc_syscall2(__NR_timerfd_gettime64, fd, curr_value);
+#else
+	__nolibc_assert_native_time64();
+	return __nolibc_syscall2(__NR_timerfd_gettime, fd, curr_value);
+#endif
+}
+
+static __attribute__((unused))
+int timerfd_gettime(int fd, struct itimerspec *curr_value)
+{
+	return __sysret(_sys_timerfd_gettime(fd, curr_value));
+}
+
+
+static __attribute__((unused))
+int _sys_timerfd_settime(int fd, int flags,
+			 const struct itimerspec *new_value, struct itimerspec *old_value)
+{
+#if defined(__NR_timerfd_settime64)
+	__nolibc_assert_time64_type(new_value->it_value.tv_sec);
+	return __nolibc_syscall4(__NR_timerfd_settime64, fd, flags, new_value, old_value);
+#else
+	__nolibc_assert_native_time64();
+	return __nolibc_syscall4(__NR_timerfd_settime, fd, flags, new_value, old_value);
+#endif
+}
+
+static __attribute__((unused))
+int timerfd_settime(int fd, int flags,
+		    const struct itimerspec *new_value, struct itimerspec *old_value)
+{
+	return __sysret(_sys_timerfd_settime(fd, flags, new_value, old_value));
+}
+
+#endif /* _NOLIBC_SYS_TIMERFD_H */