f.xahdr.Oalgntext = int16(logBase2(int(XCOFFSECTALIGN)))
		f.xahdr.Oalgndata = 0x5

		binary.Write(ctxt.Out, binary.BigEndian, &f.xfhdr)
		binary.Write(ctxt.Out, binary.BigEndian, &f.xahdr)
	} else {
		f.xfhdr.Fopthdr = 0
		binary.Write(ctxt.Out, binary.BigEndian, &f.xfhdr)
	}

}

func xcoffwrite(ctxt *Link) {
	ctxt.Out.SeekSet(0)

	xfile.writeFileHeader(ctxt)

		x = unsafe.Pointer(&staticuint64s[val])
		if goarch.BigEndian {
			x = add(x, 6)
		}
	} else {
		x = mallocgc(2, uint16Type, false)
		*(*uint16)(x) = val
	}
	return
}

func convT32(val uint32) (x unsafe.Pointer) {
	if val < uint32(len(staticuint64s)) {
		x = unsafe.Pointer(&staticuint64s[val])
		if goarch.BigEndian {
			x = add(x, 4)
		}
	} else {

func machoCompressSection(sectBytes []byte) (compressed bool, contents []byte, err error) {
	var buf bytes.Buffer
	buf.WriteString("ZLIB")
	var sizeBytes [8]byte
	binary.BigEndian.PutUint64(sizeBytes[:], uint64(len(sectBytes)))
	buf.Write(sizeBytes[:])

	z := zlib.NewWriter(&buf)
	if _, err := z.Write(sectBytes); err != nil {
		return false, nil, err
	}

		commonSelectors: make(map[selKey]*Value),
		memForCall:      make(map[ID]*Value),
	}

	// For 32-bit, need to deal with decomposition of 64-bit integers, which depends on endianness.
	if f.Config.BigEndian {
		x.firstOp = OpInt64Hi
		x.secondOp = OpInt64Lo
		x.firstType = x.typs.Int32
		x.secondType = x.typs.UInt32
	} else {
		x.firstOp = OpInt64Lo
		x.secondOp = OpInt64Hi
		x.firstType = x.typs.UInt32

			// KAME based IPv6 protocol stack usually
			// embeds the interface index in the
			// interface-local or link-local address as
			// the kernel-internal form.
			id := int(bigEndian.Uint16(a.IP[2:4]))
			if id != 0 {
				a.ZoneID = id
				a.IP[2], a.IP[3] = 0, 0
			}
		}
		return a, nil
	default:
		return nil, errInvalidAddr
	}
}

	rt := r.Type
	if rt == objabi.R_ADDR || rt == objabi.R_POWER_TLS || rt == objabi.R_CALLPOWER || rt == objabi.R_DWARFSECREF {
	} else {
		if ctxt.Arch.ByteOrder == binary.BigEndian {
			sectoff += 2
		}
	}
	out.Write64(uint64(sectoff))

	elfsym := ld.ElfSymForReloc(ctxt, r.Xsym)
	switch rt {
	default:
		return false
	case objabi.R_ADDR, objabi.R_DWARFSECREF:

// and return the specific AEAD if found.
type gcmAble interface {
	NewGCM(nonceSize, tagSize int) (AEAD, error)
}

// gcmFieldElement represents a value in GF(2¹²⁸). In order to reflect the GCM
// standard and make binary.BigEndian suitable for marshaling these values, the
// bits are stored in big endian order. For example:
//
//	the coefficient of x⁰ can be obtained by v.low >> 63.
//	the coefficient of x⁶³ can be obtained by v.low & 1.

			return nil, err
		}

		if 0 < s.VirtualSize && s.VirtualSize < s.Size {
			b = b[:s.VirtualSize]
		}

		if len(b) >= 12 && string(b[:4]) == "ZLIB" {
			dlen := binary.BigEndian.Uint64(b[4:12])
			dbuf := make([]byte, dlen)
			r, err := zlib.NewReader(bytes.NewBuffer(b[12:]))
			if err != nil {
				return nil, err
			}
			if _, err := io.ReadFull(r, dbuf); err != nil {

	if msanenabled {
		msanread(unsafe.Pointer(ptr), uintptr(n))
	}
	if asanenabled {
		asanread(unsafe.Pointer(ptr), uintptr(n))
	}
	if n == 1 {
		p := unsafe.Pointer(&staticuint64s[*ptr])
		if goarch.BigEndian {
			p = add(p, 7)
		}
		return unsafe.String((*byte)(p), 1)
	}

	var p unsafe.Pointer
	if buf != nil && n <= len(buf) {
		p = unsafe.Pointer(buf)
	} else {

		n, _ := s.sr.ReadAt(b, 0)
		if n != 12 || string(b[:4]) != "ZLIB" {
			return io.NewSectionReader(s.sr, 0, 1<<63-1)
		}

		s.compressionOffset = 12
		s.compressionType = COMPRESS_ZLIB
		s.Size = binary.BigEndian.Uint64(b[4:12])
		zrd = zlib.NewReader

	} else if s.Flags&SHF_ALLOC != 0 {
		return errorReader{&FormatError{int64(s.Offset),
			"SHF_COMPRESSED applies only to non-allocable sections", s.compressionType}}
	}