diff --git a/libc/include/sys/eventfd.h b/libc/include/sys/eventfd.h
new file mode 100644
index 0000000..19244a5
--- /dev/null
+++ b/libc/include/sys/eventfd.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+#ifndef _SYS_EVENTFD_H
+#define _SYS_EVENTFD_H
+
+#include <sys/cdefs.h>
+#include <fcntl.h>
+
+__BEGIN_DECLS
+
+#define  EFD_CLOEXEC   O_CLOEXEC
+#define  EFD_NONBLOCK  O_NONBLOCK
+
+/* type of event counter */
+typedef uint64_t  eventfd_t;
+
+extern int eventfd(unsigned int initval, int flags);
+
+/* Compatibility with GLibc */
+extern int eventfd_read(int fd, eventfd_t *counter);
+extern int eventfd_write(int fd, const eventfd_t counter);
+
+__END_DECLS
+
+#endif /* _SYS_EVENTFD_H */
diff --git a/libc/include/sys/linux-syscalls.h b/libc/include/sys/linux-syscalls.h
index b90f20d..9702a7a 100644
--- a/libc/include/sys/linux-syscalls.h
+++ b/libc/include/sys/linux-syscalls.h
@@ -182,6 +182,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 316)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 317)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 318)
+#define __NR_eventfd2                     (__NR_SYSCALL_BASE + 356)
 #define __NR_ARM_set_tls                  (__NR_SYSCALL_BASE + 983045)
 #define __NR_ARM_cacheflush               (__NR_SYSCALL_BASE + 983042)
 #endif
@@ -225,6 +226,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 291)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 292)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 293)
+#define __NR_eventfd2                     (__NR_SYSCALL_BASE + 328)
 #endif
 
 #if defined(__SH3__) || defined(__SH4__) 
@@ -282,6 +284,7 @@
 #define __NR_inotify_init                 (__NR_SYSCALL_BASE + 290)
 #define __NR_inotify_add_watch            (__NR_SYSCALL_BASE + 291)
 #define __NR_inotify_rm_watch             (__NR_SYSCALL_BASE + 292)
+#define __NR_eventfd2                     (__NR_SYSCALL_BASE + 328)
 #endif
 
 #endif
diff --git a/libc/include/sys/linux-unistd.h b/libc/include/sys/linux-unistd.h
index a1905b3..23853da 100644
--- a/libc/include/sys/linux-unistd.h
+++ b/libc/include/sys/linux-unistd.h
@@ -202,6 +202,7 @@
 int              inotify_add_watch (int, const char *, unsigned int);
 int              inotify_rm_watch (int, unsigned int);
 int              poll (struct pollfd *, unsigned int, long);
+int              eventfd (unsigned int, int);
 int              __set_tls (void*);
 int              cacheflush (long start, long end, long flags);
 #ifdef __cplusplus