// The special itself is a root.
					scanblock(uintptr(unsafe.Pointer(&spf.fn)), goarch.PtrSize, &oneptrmask[0], gcw, nil)
				case _KindSpecialWeakHandle:
					// The special itself is a root.
					spw := (*specialWeakHandle)(unsafe.Pointer(sp))
					scanblock(uintptr(unsafe.Pointer(&spw.handle)), goarch.PtrSize, &oneptrmask[0], gcw, nil)
				}
			}
			unlock(&s.speciallock)
		}
	}
}

			if !span.spanclass.noscan() {
				scanobject(base, gcw)
			}
			// Mark the finalizer itself, since the
			// special isn't part of the GC'd heap.
			scanblock(uintptr(unsafe.Pointer(&s.fn)), goarch.PtrSize, &oneptrmask[0], gcw, nil)
			releasem(mp)
		}
		return true
	}

	// There was an old finalizer
	lock(&mheap_.speciallock)
	mheap_.specialfinalizeralloc.free(unsafe.Pointer(s))