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diff --git a/ndk/android-ndk-r4/linux/platforms/android-5/arch-x86/usr/include/linux/debug_locks.h b/ndk/android-ndk-r4/linux/platforms/android-5/arch-x86/usr/include/linux/debug_locks.h
new file mode 100644
index 0000000..2d55fcd
--- /dev/null
+++ b/ndk/android-ndk-r4/linux/platforms/android-5/arch-x86/usr/include/linux/debug_locks.h
@@ -0,0 +1,26 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __LINUX_DEBUG_LOCKING_H
+#define __LINUX_DEBUG_LOCKING_H
+
+struct task_struct;
+
+#define _RET_IP_ (unsigned long)__builtin_return_address(0)
+#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; })
+
+#define DEBUG_LOCKS_WARN_ON(c)  ({   int __ret = 0;     if (unlikely(c)) {   if (debug_locks_off())   WARN_ON(1);   __ret = 1;   }   __ret;  })
+
+#define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0)
+
+#define locking_selftest() do { } while (0)
+
+#endif