mc_rip      uint64
	mc_cs       uint64
	mc_rflags   uint64
	mc_rsp      uint64
	mc_ss       uint64
	mc_len      uint32
	mc_fpformat uint32
	mc_ownedfp  uint32
	mc_reserved uint32
	mc_unused   [8]uint32
	mc_fpregs   [256]int32
}

type ucontext struct {
	uc_sigmask  sigset
	pad_cgo_0   [48]byte
	uc_mcontext mcontext
	uc_link     *ucontext
	uc_stack    stackt
	__spare__   [8]int32

}

type ucontext struct {
	uc_flags    uint64
	uc_link     *ucontext
	uc_stack    stackt
	uc_sigmask  uint64
	__unused    [15]uint64
	uc_mcontext sigcontext

}

type ucontext struct {
	uc_flags    uint64
	uc_link     *ucontext
	uc_stack    stackt
	uc_sigmask  uint64
	__unused    [15]uint64
	uc_mcontext sigcontext

	cpsr          uint32
	fault_address uint32
}

type ucontext struct {
	uc_flags    uint32
	uc_link     *ucontext
	uc_stack    stackt
	uc_mcontext sigcontext
	uc_sigmask  uint32
	__unused    [31]int32
	uc_regspace [128]uint32
}

type timeval struct {
	tv_sec  int32
	tv_usec int32
}

func (tv *timeval) set_usec(x int32) {
	tv.tv_usec = x
}

type itimerspec struct {

	}
	return w
}

// goStatusToTraceGoStatus translates the internal status to tracGoStatus.
//
// status must not be _Gdead or any status whose name has the suffix "_unused."
func goStatusToTraceGoStatus(status uint32, wr waitReason) traceGoStatus {
	// N.B. Ignore the _Gscan bit. We don't model it in the tracer.
	var tgs traceGoStatus
	switch status &^ _Gscan {
	case _Grunnable: