//sys	readv(fd int, iovs []Iovec) (n int, err error) = SYS_READV
//sys	writev(fd int, iovs []Iovec) (n int, err error) = SYS_WRITEV
//sys	preadv(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) = SYS_PREADV
//sys	pwritev(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) = SYS_PWRITEV

	ret = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func keyctlIOV(cmd int, arg2 int, payload []Iovec, arg5 int) (err error) {
	var _p0 unsafe.Pointer
	if len(payload) > 0 {
		_p0 = unsafe.Pointer(&payload[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}

	}
	s := string(termdev[:])
	idx := strings.Index(s, string(rune(0)))
	if idx == -1 {
		tty = s
	} else {
		tty = s[:idx]
	}
	return
}

func (iov *Iovec) SetLen(length int) {
	iov.Len = uint64(length)
}

func (msghdr *Msghdr) SetControllen(length int) {
	msghdr.Controllen = int32(length)
}

func (cmsg *Cmsghdr) SetLen(length int) {

}

func libc_write_trampoline()

//go:cgo_import_dynamic libc_write write "/usr/lib/libSystem.B.dylib"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func writev(fd int, iovecs []Iovec) (cnt uintptr, err error) {
	var _p0 unsafe.Pointer
	if len(iovecs) > 0 {
		_p0 = unsafe.Pointer(&iovecs[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}

}

func libc_write_trampoline()

//go:cgo_import_dynamic libc_write write "/usr/lib/libSystem.B.dylib"

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func writev(fd int, iovecs []Iovec) (cnt uintptr, err error) {
	var _p0 unsafe.Pointer
	if len(iovecs) > 0 {
		_p0 = unsafe.Pointer(&iovecs[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}