+#define _a_stacksize __u.__s[0]
+#define _a_guardsize __u.__s[1]
+#define _a_detach __u.__i[2*__SU+0]
+#define _m_type __u.__i[0]
+#define _m_lock __u.__i[1]
+#define _m_waiters __u.__i[2]
+#define _m_prev __u.__p[3]
+#define _m_next __u.__p[4]
+#define _m_count __u.__i[5]
+#define _c_block __u.__i[0]
+#define _c_clock __u.__i[1]
+#define _rw_lock __u.__i[0]
+#define _rw_waiters __u.__i[1]
+#define _b_inst __u.__p[0]
+#define _b_limit __u.__i[2]
+#define _b_lock __u.__i[3]
+#define _b_waiters __u.__i[4]