return uintptr(offs), uintptr(uint64(offs) >> (longBits - 1) >> 1) // two shifts to avoid false positive in vet
}

func Readv(fd int, iovs [][]byte) (n int, err error) {
	iovecs := make([]Iovec, 0, minIovec)
	iovecs = appendBytes(iovecs, iovs)
	n, err = readv(fd, iovecs)
	readvRacedetect(iovecs, n, err)
	return n, err
}

func Preadv(fd int, iovs [][]byte, offset int64) (n int, err error) {

	_, _, e1 := Syscall(SYS_EXIT, uintptr(code), 0, 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

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

func readv(fd int, iovs []Iovec) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(iovs) > 0 {
		_p0 = unsafe.Pointer(&iovs[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}

	WUNTRACED                     = 0x4
)

// Errors
const (
	E2BIG           = Errno(0x7)
	EACCES          = Errno(0xd)
	EADDRINUSE      = Errno(0x7d)
	EADDRNOTAVAIL   = Errno(0x7e)
	EADV            = Errno(0x44)
	EAFNOSUPPORT    = Errno(0x7c)
	EAGAIN          = Errno(0xb)
	EALREADY        = Errno(0x95)
	EBADE           = Errno(0x32)
	EBADF           = Errno(0x9)
	EBADFD          = Errno(0x51)