size := uint64(r.readUint16LEAt(r.begin))
	end = r.begin + size
	r.begin += debugLogHeaderSize

	// Read tick, nano, and p.
	tick = r.uvarint() + r.tick
	nano = r.uvarint() + r.nano
	p = int(r.varint())

	return
}

func (r *debugLogReader) uvarint() uint64 {
	var u uint64
	for i := uint(0); ; i += 7 {
		b := r.data.b[r.begin%uint64(len(r.data.b))]
		r.begin++
		u |= uint64(b&^0x80) << i

	for len(b) > 0 {
		t, n := binary.Uvarint(b)
		if n < 0 {
			break
		}
		b = b[n:]

		typ := ChecksumType(t)
		length := typ.RawByteLen()
		if length == 0 || len(b) < length {
			break
		}
		cs := base64.StdEncoding.EncodeToString(b[:length])
		b = b[length:]
		if typ.Is(ChecksumMultipart) {
			t, n := binary.Uvarint(b)
			if n < 0 {
				break
			}

	if r == 0 {
		return ""
	}

	data := ldr.DataString(r)
	n := 1 + binary.MaxVarintLen64
	if len(data) < n {
		n = len(data)
	}
	nameLen, nameLenLen := binary.Uvarint([]byte(data[1:n]))
	return data[1+nameLenLen : 1+nameLenLen+int(nameLen)]
}

func decodetypeNameEmbedded(ldr *loader.Loader, symIdx loader.Sym, relocs *loader.Relocs, off int) bool {

		switch m {
		case plan9obj.Magic386, plan9obj.MagicAMD64, plan9obj.MagicARM:
			return true
		}
	}
	return false
}

func decodeString(data []byte) (s string, rest []byte) {
	u, n := binary.Uvarint(data)
	if n <= 0 || u > uint64(len(data)-n) {
		return "", nil
	}
	return string(data[n : uint64(n)+u]), data[uint64(n)+u:]
}

// readString returns the string at address addr in the executable x.

	}

	// Value delta
	val, n := binary.Varint(it.p)
	if n <= 0 {
		log.Fatalf("bad Value varint in pciterNext: read %v", n)
	}
	it.p = it.p[n:]

	if val == 0 && !it.start {
		it.Done = true
		return
	}

	it.start = false
	it.Value += int32(val)

	// pc delta
	pc, n := binary.Uvarint(it.p)
	if n <= 0 {
		log.Fatalf("bad pc varint in pciterNext: read %v", n)
	}
	it.p = it.p[n:]

		return ""
	}
	s := string(a.data[:nul])
	a.data = a.data[nul+1:]
	return s
}

func (a *elfAttributeList) uleb128() uint64 {
	if a.err != nil {
		return 0
	}
	v, size := binary.Uvarint(a.data)
	a.data = a.data[size:]
	return v
}

// Read an elfAttribute from the list following the rules used on ARM systems.
func (a *elfAttributeList) armAttr() elfAttribute {

	r.obj(name)
}

func (p *iimporter) stringAt(off uint64) string {
	if s, ok := p.stringCache[off]; ok {
		return s
	}

	slen, n := binary.Uvarint(p.stringData[off:])
	if n <= 0 {
		errorf("varint failed")
	}
	spos := off + uint64(n)
	s := string(p.stringData[spos : spos+slen])
	p.stringCache[off] = s
	return s
}

func (p *iimporter) pkgAt(off uint64) *types.Package {

var errMalformedVarint = errors.New("malformatted base-128 varint")

// readVal reads unsigned base-128 value from r.
func (p *parser) readVal() (uint64, error) {
	v, n := binary.Uvarint(p.data[p.off:])
	if n <= 0 {
		return 0, errMalformedVarint
	}
	p.off += n
	return v, nil
}

func readValFrom(buf []byte) (v uint64, rem []byte, err error) {
	v, n := binary.Uvarint(buf)
	if n <= 0 {

func (d *decoder) stringTableAt(off int) string {
	if off < 0 || off >= len(d.str) {
		panic(errCorrupt)
	}
	s := d.str[off:]
	v, n := binary.Uvarint(s)
	if n <= 0 || v > uint64(len(s[n:])) {
		panic(errCorrupt)
	}
	return asString(s[n : n+int(v)])
}

// A reader reads sequential fields from a section of the index format.
type reader struct {

		return cr
	}
	return r
}

// Variant represents a registered variant of a language as defined by BCP 47.
type Variant struct {
	ID  uint8
	str string
}

// ParseVariant parses and returns a Variant. An error is returned if s is not
// a valid variant.
func ParseVariant(s string) (v Variant, err error) {
	defer func() {
		if recover() != nil {
			v = Variant{}
			err = ErrSyntax
		}
	}()