SCX_OPS_ATTACH
link = SCX_OPS_ATTACH(skel, central_ops, scx_central);
link = SCX_OPS_ATTACH(skel, cpu0_ops, scx_cpu0);
link = SCX_OPS_ATTACH(skel, flatcg_ops, scx_flatcg);
link = SCX_OPS_ATTACH(skel, pair_ops, scx_pair);
link = SCX_OPS_ATTACH(skel, qmap_ops, scx_qmap);
link = SCX_OPS_ATTACH(skel, sdt_ops, scx_sdt);
link = SCX_OPS_ATTACH(skel, simple_ops, scx_simple);
ops_link = SCX_OPS_ATTACH(skel, userland_ops, scx_userland);