func FlushFileBuffers(handle Handle) (err error) {
	r1, _, e1 := syscall.Syscall(procFlushFileBuffers.Addr(), 1, uintptr(handle), 0, 0)
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

func FlushViewOfFile(addr uintptr, length uintptr) (err error) {
	r1, _, e1 := syscall.Syscall(procFlushViewOfFile.Addr(), 2, uintptr(addr), uintptr(length), 0)
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

type machoExe struct {
	f *macho.File
}

func (x *machoExe) ReadData(addr, size uint64) ([]byte, error) {
	for _, load := range x.f.Loads {
		seg, ok := load.(*macho.Segment)
		if !ok {
			continue
		}
		if seg.Addr <= addr && addr <= seg.Addr+seg.Filesz-1 {
			if seg.Name == "__PAGEZERO" {
				continue
			}
			n := seg.Addr + seg.Filesz - addr
			if n > size {
				n = size
			}

func SwapInt64(addr *int64, new int64) (old int64)

// SwapUint32 atomically stores new into *addr and returns the previous *addr value.
// Consider using the more ergonomic and less error-prone [Uint32.Swap] instead.
func SwapUint32(addr *uint32, new uint32) (old uint32)

// SwapUint64 atomically stores new into *addr and returns the previous *addr value.

	wantInlinable := []string{
		"(*uint128).halves",
		"Addr.BitLen",
		"Addr.hasZone",
		"Addr.Is4",
		"Addr.Is4In6",
		"Addr.Is6",
		"Addr.IsInterfaceLocalMulticast",
		"Addr.IsValid",
		"Addr.IsUnspecified",
		"Addr.Less",
		"Addr.Unmap",
		"Addr.Zone",
		"Addr.v4",
		"Addr.v6",
		"Addr.v6u16",
		"Addr.withoutZone",
		"AddrPortFrom",
		"AddrPort.Addr",
		"AddrPort.Port",
		"AddrPort.IsValid",

			})
		}
		if server == nil {
			t.Fatalf("Case %v: server: expected: <non-nil>, got: <nil>", (i + 1))
		} else if !reflect.DeepEqual(server.Addrs, testCase.addrs) {
			t.Fatalf("Case %v: server.Addrs: expected: %v, got: %v", (i + 1), testCase.addrs, server.Addrs)
		}

		if testCase.certFn == nil {
			if server.TLSConfig != nil {
				t.Fatalf("Case %v: server.TLSConfig: expected: <nil>, got: %v", (i + 1), server.TLSConfig)
			}

			ipv4: func() []netip.Addr {
				ip, _ := netip.ParseAddr("1.0.0.0")
				ip2, _ := netip.ParseAddr("255.255.255.255")
				return []netip.Addr{ip, ip2}
			},
			ipv6: func() []netip.Addr {
				return []netip.Addr{}
			},
		},
		{
			name: "one ipv6",
			ips:  []string{"::1"},
			ipv4: func() []netip.Addr {
				return []netip.Addr{}
			},
			ipv6: func() []netip.Addr {
				ip, _ := netip.ParseAddr("::1")

	*addr = new

	unlock()
	return
}

//go:nosplit
func Xchg64(addr *uint64, new uint64) (old uint64) {
	lockAndCheck(addr)

	old = *addr
	*addr = new

	unlock()
	return
}

//go:nosplit
func Cas64(addr *uint64, old, new uint64) (swapped bool) {
	lockAndCheck(addr)

	if (*addr) == old {
		*addr = new
		unlock()
		return true
	}

	unlock()
	return false
}

		if err == nil {
			ip := from.Addr // copy from.Addr; ip escapes, so this line allocates 16 bytes
			*addr = UDPAddr{IP: ip[:], Port: from.Port, Zone: zoneCache.name(int(from.ZoneId))}
		}
	}
	if err != nil {
		// No sockaddr, so don't return UDPAddr.
		addr = nil
	}
	return n, addr, err
}

func (c *UDPConn) readFromAddrPort(b []byte) (n int, addr netip.AddrPort, err error) {
	var ip netip.Addr

	racereleaseg(getg(), addr)
}

//go:nosplit
func racereleaseg(gp *g, addr unsafe.Pointer) {
	if getg().raceignore != 0 || !isvalidaddr(addr) {
		return
	}
	racecall(&__tsan_release, gp.racectx, uintptr(addr), 0, 0)
}

//go:nosplit
func racereleaseacquire(addr unsafe.Pointer) {
	racereleaseacquireg(getg(), addr)
}

//go:nosplit

	addr := ap.Addr()
	if !addr.IsValid() {
		return syscall.SockaddrInet6{}, &AddrError{Err: "non-IPv6 address", Addr: addr.String()}
	}
	sa := syscall.SockaddrInet6{
		Addr:   addr.As16(),
		Port:   int(ap.Port()),
		ZoneId: uint32(zoneCache.index(addr.Zone())),
	}
	return sa, nil