Harshavardhana <******@****.***> 1712330228 -0700

func IPv4Unspecified() Addr { return AddrFrom4([4]byte{}) }

// AddrFrom4 returns the address of the IPv4 address given by the bytes in addr.
func AddrFrom4(addr [4]byte) Addr {
	return Addr{
		addr: uint128{0, 0xffff00000000 | uint64(addr[0])<<24 | uint64(addr[1])<<16 | uint64(addr[2])<<8 | uint64(addr[3])},
		z:    z4,
	}
}

// AddrFrom16 returns the IPv6 address given by the bytes in addr.

	}
	_ = *addr // if nil, fault before taking the lock
	var r uint64
	addrLock(addr).lock()
	r = *addr
	addrLock(addr).unlock()
	return r
}

//go:nosplit
func goStore64(addr *uint64, v uint64) {
	if uintptr(unsafe.Pointer(addr))&7 != 0 {
		*(*int)(nil) = 0 // crash on unaligned uint64
	}
	_ = *addr // if nil, fault before taking the lock
	addrLock(addr).lock()
	*addr = v
	addrLock(addr).unlock()
}

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
}

)

const raceenabled = true

func raceAcquire(addr unsafe.Pointer) {
	runtime.RaceAcquire(addr)
}

func raceReleaseMerge(addr unsafe.Pointer) {
	runtime.RaceReleaseMerge(addr)
}

func raceReadRange(addr unsafe.Pointer, len int) {
	runtime.RaceReadRange(addr, len)
}

func raceWriteRange(addr unsafe.Pointer, len int) {
	runtime.RaceWriteRange(addr, len)

)

const raceenabled = true

func raceAcquire(addr unsafe.Pointer) {
	runtime.RaceAcquire(addr)
}

func raceReleaseMerge(addr unsafe.Pointer) {
	runtime.RaceReleaseMerge(addr)
}

func raceReadRange(addr unsafe.Pointer, len int) {
	runtime.RaceReadRange(addr, len)
}

func raceWriteRange(addr unsafe.Pointer, len int) {
	runtime.RaceWriteRange(addr, len)

	MOVV	addr+0(FP), RARG0
	MOVV	sz+8(FP), RARG1
	// void __msan_write_go(void *addr, uintptr_t sz);
	MOVV	$__msan_write_go(SB), FARG
	JMP	msancall<>(SB)

// func runtime·msanmalloc(addr unsafe.Pointer, sz uintptr)
TEXT	runtime·msanmalloc(SB), NOSPLIT, $0-16
	MOVV	addr+0(FP), RARG0
	MOVV	sz+8(FP), RARG1
	// void __msan_malloc_go(void *addr, uintptr_t sz);
	MOVV	$__msan_malloc_go(SB), FARG
	JMP	msancall<>(SB)

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
			}

			ip = ip[:IPv4len]
		}
	}
	switch net {
	case "tcp", "tcp4", "tcp6":
		addr = &TCPAddr{IP: ip, Port: port}
	case "udp", "udp4", "udp6":
		addr = &UDPAddr{IP: ip, Port: port}
	default:
		return nil, UnknownNetworkError(net)
	}
	return addr, nil
}

func startPlan9(ctx context.Context, net string, addr Addr) (ctl *os.File, dest, proto, name string, err error) {
	var (
		ip   IP
		port int
	)

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.