// pointer value. The src pointer is off bytes into the gcbits.
//
//go:nosplit
//go:nowritebarrier
func cgoCheckBits(src unsafe.Pointer, gcbits *byte, off, size uintptr) {
	skipMask := off / goarch.PtrSize / 8
	skipBytes := skipMask * goarch.PtrSize * 8
	ptrmask := addb(gcbits, skipMask)
	src = add(src, skipBytes)
	off -= skipBytes
	size += off
	var bits uint32

	if len(buf) >= w.size {
		from := len(buf) - w.size
		w.data = append(w.data[:0], buf[from:]...)
		w.off = 0
		return
	}

	// Update off to point to the oldest remaining byte.
	free := w.size - len(w.data)
	if free == 0 {
		n := copy(w.data[w.off:], buf)
		if n == len(buf) {
			w.off += n
		} else {
			w.off = copy(w.data, buf[n:])
		}
	} else {
		if free >= len(buf) {
			w.data = append(w.data, buf...)

				b.uint32()
			}
		}

		u.off = b.off
		u.data = b.bytes(int(n - (b.off - dataOff)))
	}
	if b.err != nil {
		return nil, b.err
	}
	return units, nil
}

// offsetToUnit returns the index of the unit containing offset off.
// It returns -1 if no unit contains this offset.
func (d *Data) offsetToUnit(off Offset) int {
	// Find the unit after off
	next := sort.Search(len(d.unit), func(i int) bool {

	if off < 0 || off > 4096-clearLoopCutoff || cnt > clearLoopCutoff {
		p = pp.Append(p, s390x.AADD, obj.TYPE_CONST, 0, off, obj.TYPE_REG, s390x.REGRT1, 0)
		p.Reg = int16(s390x.REGSP)
		reg = s390x.REGRT1
		off = 0
	}

	// Generate a loop of large clears.
	if cnt > clearLoopCutoff {
		ireg := int16(s390x.REGRT2) // register holds number of remaining loop iterations

				return fmt.Errorf("Seek(-1, 1) from EOF = %d, %v, want %d, nil", -off, err, len(content)-1)
			}
			if off, err := r.Seek(int64(-len(content)/3), 1); off != int64(middle-1) || err != nil {
				return fmt.Errorf("Seek(%d, 1) from %d = %d, %v, want %d, nil", -len(content)/3, len(content)-1, off, err, middle-1)
			}
			if off, err := r.Seek(+1, 1); off != int64(middle) || err != nil {

		r.off++
		return rv, nil
	}
	return r.rdr.ReadByte()
}

func (r *MReader) Seek(offset int64, whence int) (int64, error) {
	if r.fileView == nil {
		return r.rdr.MustSeek(offset, whence), nil
	}
	switch whence {
	case io.SeekStart:
		r.off = offset
		return offset, nil
	case io.SeekCurrent:
		return r.off, nil
	case io.SeekEnd:
		r.off = int64(len(r.fileView)) + offset
		return r.off, nil
	}

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;

}

// Seek to a new position in the type unit.
func (tur *typeUnitReader) Seek(off Offset) {
	tur.err = nil
	doff := off - tur.tu.off
	if doff < 0 || doff >= Offset(len(tur.tu.data)) {
		tur.err = fmt.Errorf("%s: offset %d out of range; max %d", tur.tu.name, doff, len(tur.tu.data))
		return
	}
	tur.b = makeBuf(tur.d, tur.tu, tur.tu.name, off, tur.tu.data[doff:])
}

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;