}
	if asan.Enabled && *done > 0 {
		asan.Read(unsafe.Pointer(&p[0]), uintptr(*done))
	}
	return err
}

var ioSync int64

var procSetFilePointerEx = modkernel32.NewProc("SetFilePointerEx")

const ptrSize = unsafe.Sizeof(uintptr(0))

// setFilePointerEx calls SetFilePointerEx.
// See https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-setfilepointerex

	ir.Syms.Asanread = typecheck.LookupRuntimeFunc("asanread")
	ir.Syms.Asanwrite = typecheck.LookupRuntimeFunc("asanwrite")
	ir.Syms.Newobject = typecheck.LookupRuntimeFunc("newobject")
	ir.Syms.Newproc = typecheck.LookupRuntimeFunc("newproc")
	ir.Syms.Panicdivide = typecheck.LookupRuntimeFunc("panicdivide")
	ir.Syms.PanicdottypeE = typecheck.LookupRuntimeFunc("panicdottypeE")
	ir.Syms.PanicdottypeI = typecheck.LookupRuntimeFunc("panicdottypeI")

		{"(*DLLError).Unwrap", Method, 16},
		{"(*Filetime).Nanoseconds", Method, 0},
		{"(*Iovec).SetLen", Method, 0},
		{"(*LazyDLL).Handle", Method, 0},
		{"(*LazyDLL).Load", Method, 0},
		{"(*LazyDLL).NewProc", Method, 0},
		{"(*LazyProc).Addr", Method, 0},
		{"(*LazyProc).Call", Method, 0},
		{"(*LazyProc).Find", Method, 0},
		{"(*Msghdr).SetControllen", Method, 0},
		{"(*Proc).Addr", Method, 0},