diff --git a/libc/kernel/uapi/linux/fcntl.h b/libc/kernel/uapi/linux/fcntl.h
new file mode 100644
index 0000000..fc18d87
--- /dev/null
+++ b/libc/kernel/uapi/linux/fcntl.h
@@ -0,0 +1,48 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_LINUX_FCNTL_H
+#define _UAPI_LINUX_FCNTL_H
+#include <asm/fcntl.h>
+#define F_SETLEASE (F_LINUX_SPECIFIC_BASE + 0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define F_GETLEASE (F_LINUX_SPECIFIC_BASE + 1)
+#define F_CANCELLK (F_LINUX_SPECIFIC_BASE + 5)
+#define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6)
+#define F_NOTIFY (F_LINUX_SPECIFIC_BASE+2)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
+#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
+#define DN_ACCESS 0x00000001
+#define DN_MODIFY 0x00000002
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define DN_CREATE 0x00000004
+#define DN_DELETE 0x00000008
+#define DN_RENAME 0x00000010
+#define DN_ATTRIB 0x00000020
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define DN_MULTISHOT 0x80000000
+#define AT_FDCWD -100
+#define AT_SYMLINK_NOFOLLOW 0x100
+#define AT_REMOVEDIR 0x200
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define AT_SYMLINK_FOLLOW 0x400
+#define AT_NO_AUTOMOUNT 0x800
+#define AT_EMPTY_PATH 0x1000
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */