// If a name is not in this map, it is allowed iff the definition
// has a linkname (push).
// If a name is in this map, it is allowed only in listed packages,
// even if it has a linknamed definition.
var blockedLinknames = map[string][]string{
	// coroutines
	"runtime.coroswitch": {"iter"},
	"runtime.newcoro":    {"iter"},
	// weak references
	"internal/weak.runtime_registerWeakPointer": {"internal/weak"},