}

//go:nosplit
func racemapshadow(addr unsafe.Pointer, size uintptr) {
	if racearenastart == 0 {
		racearenastart = uintptr(addr)
	}
	if racearenaend < uintptr(addr)+size {
		racearenaend = uintptr(addr) + size
	}
	racecall(&__tsan_map_shadow, uintptr(addr), size, 0, 0)
}

//go:nosplit
func racemalloc(p unsafe.Pointer, sz uintptr) {