type TypeFilter struct {
       Names map[string]bool
}

func LoadSpecFromReader(rd io.ReaderAt, filter *TypeFilter) (*Spec, error)

var filter *btf.TypeFilter
if len(programs) > 0 {
        filter = &btf.TypeFilter{
                Names: map[string]bool{},
        }
        for _, p := range programs {
                iter := p.Instructions.Iterate()
                for iter.Next() {
                        if relo := btf.CORERelocationMetadata(iter.Ins); relo != nil {
                                fmt.Printf("relo %s\n", relo.String())
                                filter.Names[relo.TypeName()] = true
                        }
                }
        }
}
s, err := btf.LoadKernelSpecWithFilter(filter)
...
opts := ebpf.CollectionOptions{
	Programs: ebpf.ProgramOptions{
		KernelTypes: s,
	},
}
...
if err := spec.LoadAndAssign(objs, &opts); err != nil {