// If ep points to the stack, only static live information will be returned
// (i.e. not for objects which are only dynamically live stack objects).
func getgcmask(ep any) (mask []byte) {
	e := *efaceOf(&ep)
	p := e.data
	t := e._type

	var et *_type
	if t.Kind_&abi.KindMask != abi.Pointer {
		throw("bad argument to getgcmask: expected type to be a pointer to the value type whose mask is being queried")

		arch:     ctxt.Arch,
		tmap:     make(map[string]loader.Sym),
		tdmap:    make(map[loader.Sym]loader.Sym),
		rtmap:    make(map[loader.Sym]loader.Sym),
	}
	d.typeRuntimeEface = d.lookupOrDiag("type:runtime.eface")
	d.typeRuntimeIface = d.lookupOrDiag("type:runtime.iface")

	if ctxt.HeadType == objabi.Haix {
		// Initial map used to store package size for each DWARF section.
		dwsectCUSize = make(map[string]uint64)
	}