// type to avoid the header trim/copy
	var addr *IPAddr
	n, sa, err := c.fd.readFrom(b)
	switch sa := sa.(type) {
	case *syscall.SockaddrInet4:
		addr = &IPAddr{IP: sa.Addr[0:]}
		n = stripIPv4Header(n, b)
	case *syscall.SockaddrInet6:
		addr = &IPAddr{IP: sa.Addr[0:], Zone: zoneCache.name(int(sa.ZoneId))}
	}
	return n, addr, err
}

func stripIPv4Header(n int, b []byte) int {
	if len(b) < 20 {

	// Addr methods
	test("Addr.IsZero", func() { sinkBool = MustParseAddr("1.2.3.4").IsZero() })
	test("Addr.BitLen", func() { sinkBool = MustParseAddr("1.2.3.4").BitLen() == 8 })
	test("Addr.Zone/4", func() { sinkBool = MustParseAddr("1.2.3.4").Zone() == "" })
	test("Addr.Zone/6", func() { sinkBool = MustParseAddr("fe80::1").Zone() == "" })

// limitations under the License.

package config

import (
	"net"
	"net/netip"
	"testing"
)

var tesrLocalIPAddrs = func(ips []netip.Addr) ([]net.Addr, error) {
	var IPAddrs []net.Addr
	for i := 0; i < len(ips); i++ {
		var ipAddr net.Addr
		ipNetAddr := &net.IPNet{IP: net.ParseIP(ips[i].String())}
		ipAddr = ipNetAddr
		IPAddrs = append(IPAddrs, ipAddr)
	}
	return IPAddrs, nil
}

	}
	if addr != "" {
		m.monitoringServer = &http.Server{
			Addr:        listener.Addr().String(),
			Handler:     mux,
			IdleTimeout: 90 * time.Second, // matches http.DefaultTransport keep-alive timeout
			ReadTimeout: 30 * time.Second,
		}
	}

	version.Info.RecordComponentBuildTag("pilot")

	if addr != "" {
		go func() {

	addr := (*int32)(unsafe.Pointer(uaddr))
	for i := 0; i < count; i++ {
		for {
			v := LoadInt32(addr)
			if CompareAndSwapInt32(addr, v, v+1) {
				break
			}
		}
	}
}

func hammerCompareAndSwapInt32Method(uaddr *uint32, count int) {
	addr := (*Int32)(unsafe.Pointer(uaddr))
	for i := 0; i < count; i++ {
		for {
			v := addr.Load()
			if addr.CompareAndSwap(v, v+1) {

		p.errorf("%s: expected immediate constant; found %s", op, obj.Dconv(prog, addr))
	}
	return addr.Offset
}

// getRegister checks that addr represents a register and returns its value.
func (p *Parser) getRegister(prog *obj.Prog, op obj.As, addr *obj.Addr) int16 {
	if addr.Type != obj.TYPE_REG || addr.Offset != 0 || addr.Name != 0 || addr.Index != 0 {

	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)

		}
		if err := setKeepAliveCount(c.fd, config.Count); err != nil {
			return &OpError{Op: "set", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
		}
	} else if err := setKeepAliveIdleAndIntervalAndCount(c.fd, config.Idle, config.Interval, config.Count); err != nil {
		return &OpError{Op: "set", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
	}

	return nil

}

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).