MOVD	$__tsan_write_pc(SB), R1
	LMG	addr+0(FP), R3, R5
	JMP	racecalladdr<>(SB)

// func runtime·racereadrange(addr, size uintptr)
// Called from instrumented code.
TEXT	runtime·racereadrange(SB), NOSPLIT, $0-16
	// void __tsan_read_range(ThreadState *thr, void *addr, uintptr size, void *pc);
	MOVD	$__tsan_read_range(SB), R1
	LMG	addr+0(FP), R3, R4
	MOVD	R14, R5
	JMP	racecalladdr<>(SB)

}

func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) {
	return ptracePeek(pid, addr, out)
}

func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) {
	return ptracePeek(pid, addr, out)
}

func ptracePoke(pid int, addr uintptr, data []byte) (count int, err error) {
	n := 0
	for len(data) > 0 {
		bsize := len(data)
		if bsize > 1024 {
			bsize = 1024
		}

// R4 = TODO: What's this supposed to be?
// R5 = caller pc
// R6 = addr of incoming arg list
// R8 contains addr of target function.
TEXT	racecallatomic<>(SB), NOSPLIT, $0-0
	// Trigger SIGSEGV early if address passed to atomic function is bad.
	MOVD	(R6), R7	// 1st arg is addr
	MOVB	(R7), R9	// segv here if addr is bad
	// Check that addr is within [arenastart, arenaend) or within [racedatastart, racedataend).

		if err != nil {
			t.Fatal(err)
		}
		for _, addr := range addrs {
			switch addr := addr.(type) {
			case *IPNet:
				if addr.IP.To4() != nil {
					have = append(have, addr.String())
				}
				if addr.IP.To16() != nil && addr.IP.To4() == nil {
					// netsh does not output netmask for ipv6, so ignore ipv6 mask
					have = append(have, addr.IP.String())
				}
			case *IPAddr:

// R9 = addr of target function
TEXT	racecallatomic<>(SB), NOSPLIT, $0
	// Set up these registers
	// R0 = *ThreadState
	// R1 = caller pc
	// R2 = pc
	// R3 = addr of incoming arg list

	// Trigger SIGSEGV early.
	MOVD	40(RSP), R3	// 1st arg is addr. after two times BL, get it at 40(RSP)
	MOVB	(R3), R13	// segv here if addr is bad

			return ip
		}
	}

	switch addr := addr.(type) {
	case *TCPAddr:
		ip := convertIP(addr.IP)
		if ip == nil || len(ip) == len(addr.IP) {
			return addr
		}
		return &TCPAddr{IP: ip, Port: addr.Port, Zone: addr.Zone}
	case *UDPAddr:
		ip := convertIP(addr.IP)
		if ip == nil || len(ip) == len(addr.IP) {
			return addr
		}
		return &UDPAddr{IP: ip, Port: addr.Port, Zone: addr.Zone}
	default:

TEXT	runtime·RaceRead(SB), NOSPLIT, $0-8
	// This needs to be a tail call, because raceread reads caller pc.
	JMP	runtime·raceread(SB)

// void runtime·racereadpc(void *addr, void *callpc, void *pc)
TEXT	runtime·racereadpc(SB), NOSPLIT, $0-24
	MOVQ	addr+0(FP), RARG1
	MOVQ	callpc+8(FP), RARG2
	MOVQ	pc+16(FP), RARG3
	ADDQ	$1, RARG3 // pc is function start, tsan wants return address

	// network address.
	Source Addr

	// Addr is the network address for which this error occurred.
	// For local operations, like Listen or SetDeadline, Addr is
	// the address of the local endpoint being manipulated.
	// For operations involving a remote network connection, like
	// Dial, Read, or Write, Addr is the remote address of that
	// connection.
	Addr Addr

func ipIterator(first netip.Addr, last netip.Addr, offset uint64) func() netip.Addr {
	// There are no modulo operations for IP addresses
	modulo := func(addr netip.Addr) netip.Addr {
		if addr.Compare(last) == 1 {
			return first
		}
		return addr
	}
	next := func(addr netip.Addr) netip.Addr {
		return modulo(addr.Next())
	}
	start, err := addOffsetAddress(first, offset)

	}
	for _, addr := range []Addr{e.Source, e.Addr} {
		switch addr := addr.(type) {
		case nil:
		case *TCPAddr:
			if addr == nil {
				return fmt.Errorf("OpError.Source or Addr is non-nil interface: %#v, %v", addr, e)
			}
		case *UDPAddr:
			if addr == nil {
				return fmt.Errorf("OpError.Source or Addr is non-nil interface: %#v, %v", addr, e)
			}
		case *IPAddr:
			if addr == nil {