--- /dev/null
+/*
+ * compiler.h
+ *
+ * Created on: Jun 18, 2015
+ * Author: yliu
+ */
+
+#ifndef COMPILER_H_
+#define COMPILER_H_
+
+#if defined ( __GNUC__ )
+#define __ALWAYS_INLINE __attribute__((always_inline))
+#define __forceinline __ALWAYS_INLINE
+#define __weak __attribute__ ((weak))
+#endif
+
+
+
+#endif /* COMPILER_H_ */