var runtime.oneptrmask

7 uses

	runtime (current package)
		mgcmark.go#L139: var oneptrmask = [...]uint8{1}
		mgcmark.go#L376: 				scanblock(uintptr(unsafe.Pointer(&spf.fn)), sys.PtrSize, &oneptrmask[0], gcw, nil)
		mgcmark.go#L741: 		scanblock(uintptr(unsafe.Pointer(&gp.sched.ctxt)), sys.PtrSize, &oneptrmask[0], gcw, &state)
		mgcmark.go#L762: 			scanblock(uintptr(unsafe.Pointer(&d.fn)), sys.PtrSize, &oneptrmask[0], gcw, &state)
		mgcmark.go#L767: 			scanblock(uintptr(unsafe.Pointer(&d.link)), sys.PtrSize, &oneptrmask[0], gcw, &state)
		mgcmark.go#L773: 			scanblock(uintptr(unsafe.Pointer(&d)), sys.PtrSize, &oneptrmask[0], gcw, &state)
		mheap.go#L1804: 			scanblock(uintptr(unsafe.Pointer(&s.fn)), sys.PtrSize, &oneptrmask[0], gcw, nil)

The pages are generated with Golds v0.2.8-preview. (GOOS=darwin GOARCH=arm64)