func boring_registerCache(p unsafe.Pointer) {
	boringCaches = append(boringCaches, p)
}

//go:linkname unique_runtime_registerUniqueMapCleanup unique.runtime_registerUniqueMapCleanup
func unique_runtime_registerUniqueMapCleanup(f func()) {
	// Start the goroutine in the runtime so it's counted as a system goroutine.
	uniqueMapCleanup = make(chan struct{}, 1)
	go func(cleanup func()) {