plt.AddUint8(0x00)
		plt.AddUint8(0x00)
		plt.AddUint8(0x04)
		// br      %r1
		plt.AddUint8(0x07)
		plt.AddUint8(0xf1)
		// basr    %r1,%r0
		plt.AddUint8(0x0d)
		plt.AddUint8(0x10)
		// lgf     %r1,12(%r1)
		plt.AddUint8(0xe3)
		plt.AddUint8(0x10)
		plt.AddUint8(0x10)
		plt.AddUint8(0x0c)
		plt.AddUint8(0x00)
		plt.AddUint8(0x14)
		// jg .plt
		plt.AddUint8(0xc0)
		plt.AddUint8(0xf4)

			b.AddUint24LengthPrefixed(func(b *cryptobyte.Builder) {
				b.AddBytes(extra)
			})
		}
	})
	if s.extMasterSecret {
		b.AddUint8(1)
	} else {
		b.AddUint8(0)
	}
	if s.EarlyData {
		b.AddUint8(1)
	} else {
		b.AddUint8(0)
	}
	marshalCertificate(&b, Certificate{
		Certificate:                 certificatesToBytesSlice(s.peerCertificates),

		if newFileIndex != fileIndex {
			dctxt.AddUint8(lines, dwarf.DW_LNS_set_file)
			dwarf.Uleb128put(dctxt, lines, int64(newFileIndex))
			fileIndex = newFileIndex
			wrote = true
		}
		if prologue && !wrotePrologue {
			dctxt.AddUint8(lines, uint8(dwarf.DW_LNS_set_prologue_end))
			wrotePrologue = true
			wrote = true
		}
		if stmt != newStmt {
			dctxt.AddUint8(lines, uint8(dwarf.DW_LNS_negate_stmt))
			stmt = newStmt

func elfsetupplt(ctxt *ld.Link, ldr *loader.Loader, plt, got *loader.SymbolBuilder, dynamic loader.Sym) {
	if plt.Size() == 0 {
		// pushl got+4
		plt.AddUint8(0xff)

		plt.AddUint8(0x35)
		plt.AddAddrPlus(ctxt.Arch, got.Sym(), 4)

		// jmp *got+8
		plt.AddUint8(0xff)

		plt.AddUint8(0x25)
		plt.AddAddrPlus(ctxt.Arch, got.Sym(), 8)

		// zero pad
		plt.AddUint32(ctxt.Arch, 0)

		// assume got->size == 0 too

			bind.AddUint8(BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB)
			bind.AddUleb(uint64(d))
		} else { // d <= 0
			bind.AddUint8(BIND_OPCODE_SET_DYLIB_SPECIAL_IMM | uint8(d)&0xf)
		}

		bind.AddUint8(BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM)
		// target symbol name as a C string, with _ prefix
		bind.AddUint8('_')
		bind.Addstring(ldr.SymExtname(r.targ))

		bind.AddUint8(BIND_OPCODE_DO_BIND)
	}
	bind.AddUint8(BIND_OPCODE_DONE)

	// cpos == unitstart + 4 + 2 + 4
	lsu.AddUint8(1)                // minimum_instruction_length
	lsu.AddUint8(is_stmt)          // default_is_stmt
	lsu.AddUint8(LINE_BASE & 0xFF) // line_base
	lsu.AddUint8(LINE_RANGE)       // line_range
	lsu.AddUint8(OPCODE_BASE)      // opcode_base
	lsu.AddUint8(0)                // standard_opcode_lengths[1]
	lsu.AddUint8(1)                // standard_opcode_lengths[2]

	updateRequested bool
}

func (m *keyUpdateMsg) marshal() ([]byte, error) {
	var b cryptobyte.Builder
	b.AddUint8(typeKeyUpdate)
	b.AddUint24LengthPrefixed(func(b *cryptobyte.Builder) {
		if m.updateRequested {
			b.AddUint8(1)
		} else {
			b.AddUint8(0)
		}
	})

	return b.Bytes()
}

func (m *keyUpdateMsg) unmarshal(data []byte) bool {

	if plt.Size() == 0 {
		// pushq got+8(IP)
		plt.AddUint8(0xff)

		plt.AddUint8(0x35)
		plt.AddPCRelPlus(ctxt.Arch, got.Sym(), 8)

		// jmpq got+16(IP)
		plt.AddUint8(0xff)

		plt.AddUint8(0x25)
		plt.AddPCRelPlus(ctxt.Arch, got.Sym(), 16)

		// nopl 0(AX)
		plt.AddUint32(ctxt.Arch, 0x00401f0f)

// has occurred during building.
func (b *Builder) BytesOrPanic() []byte {
	if b.err != nil {
		panic(b.err)
	}
	return b.result[b.offset:]
}

// AddUint8 appends an 8-bit value to the byte string.
func (b *Builder) AddUint8(v uint8) {
	b.add(byte(v))
}

// AddUint16 appends a big-endian, 16-bit value to the byte string.
func (b *Builder) AddUint16(v uint16) {
	b.add(byte(v>>8), byte(v))
}

		sb.l.SetAttrReadOnly(sb.symIdx, false)
	}
}

func (sb *SymbolBuilder) AddUleb(v uint64) {
	if v < 128 { // common case: 1 byte
		sb.AddUint8(uint8(v))
		return
	}
	for {
		c := uint8(v & 0x7f)
		v >>= 7
		if v != 0 {
			c |= 0x80
		}
		sb.AddUint8(c)
		if c&0x80 == 0 {
			break
		}
	}