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diff --git a/ndk/android-ndk-r4/darwin/platforms/android-3/arch-arm/usr/include/asm-generic/bitops/atomic.h b/ndk/android-ndk-r4/darwin/platforms/android-3/arch-arm/usr/include/asm-generic/bitops/atomic.h
new file mode 100644
index 0000000..5f53ba9
--- /dev/null
+++ b/ndk/android-ndk-r4/darwin/platforms/android-3/arch-arm/usr/include/asm-generic/bitops/atomic.h
@@ -0,0 +1,23 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _ASM_GENERIC_BITOPS_ATOMIC_H_
+#define _ASM_GENERIC_BITOPS_ATOMIC_H_
+
+#include <asm/types.h>
+
+#define BITOP_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
+#define BITOP_WORD(nr) ((nr) / BITS_PER_LONG)
+
+#define _atomic_spin_lock_irqsave(l,f) do { local_irq_save(f); } while (0)
+#define _atomic_spin_unlock_irqrestore(l,f) do { local_irq_restore(f); } while (0)
+
+#endif