LWPCTL_FEATURE_CURCPU
if (_lwp_ctl(LWPCTL_FEATURE_CURCPU, &self->pt_lwpctl)) {
if (_lwp_ctl(LWPCTL_FEATURE_CURCPU, &first->pt_lwpctl) != 0) {
if (_lwp_ctl(LWPCTL_FEATURE_CURCPU, &self->pt_lwpctl)) {
features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR);
features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR);