__futex_atomic_op1   64 include/asm-x86/futex.h 		__futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
__futex_atomic_op1   67 include/asm-x86/futex.h 		__futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,