return linksym("_", name, abi)
}

// linksym is an internal helper function for implementing the above
// exported APIs.
func linksym(pkg, name string, abi obj.ABI) *obj.LSym {
	return Ctxt.LookupABIInit(name, abi, func(r *obj.LSym) { r.Pkg = pkg })

// If it does not exist, it creates it.
func (ctxt *Link) LookupABI(name string, abi ABI) *LSym {
	return ctxt.LookupABIInit(name, abi, nil)
}

// LookupABIInit looks up a symbol with the given ABI.
// If it does not exist, it creates it and
// passes it to init for one-time initialization.
func (ctxt *Link) LookupABIInit(name string, abi ABI, init func(s *LSym)) *LSym {
	var hash map[string]*LSym
	switch abi {
	case ABI0: