data = data[1:]
			offset++
		}

		for len(data) > 0 {
			dataLen := int32(len(data))
			var segmentEnd, zeroEnd int32
			if len(segments)+(len(dataSects)-secIndex) == maxNumSegments {
				segmentEnd = dataLen
				zeroEnd = dataLen
			} else {
				for {
					// look for beginning of zeroes
					for segmentEnd < dataLen && data[segmentEnd] != 0 {
						segmentEnd++
					}

	hdr, err := x.ReadData(addr, uint64(2*ptrSize))
	if err != nil || len(hdr) < 2*ptrSize {
		return ""
	}
	dataAddr := readPtr(hdr)
	dataLen := readPtr(hdr[ptrSize:])
	data, err := x.ReadData(dataAddr, dataLen)
	if err != nil || uint64(len(data)) < dataLen {
		return ""
	}
	return string(data)
}

// elfExe is the ELF implementation of the exe interface.
type elfExe struct {
	f *elf.File
}

	WeakBindOff, WeakBindLen uint32
	LazyBindOff, LazyBindLen uint32
	ExportOff, ExportLen     uint32
}

type linkEditDataCmd struct {
	Cmd              macho.LoadCmd
	Len              uint32
	DataOff, DataLen uint32
}

type encryptionInfoCmd struct {
	Cmd                macho.LoadCmd
	Len                uint32
	CryptOff, CryptLen uint32
	CryptId            uint32
}

type uuidCmd struct {
	Cmd  macho.LoadCmd

	PXOR T2, ACC1;\
	PSHUFD $78, X, T1;\
	PXOR T1, X;\
	MOVOU (16*(i*2+1))(pTbl), T1;\
	PCLMULQDQ $0x00, X, T1;\
	PXOR T1, ACCM

	MOVQ productTable+0(FP), pTbl
	MOVQ data_base+8(FP), aut
	MOVQ data_len+16(FP), autLen
	MOVQ T+32(FP), tPtr

	PXOR ACC0, ACC0
	MOVOU bswapMask<>(SB), BSWAP
	MOVOU gcmPoly<>(SB), POLY

	TESTQ autLen, autLen
	JEQ dataBail

	CMPQ autLen, $13	// optimize the TLS case

	VPMULL2	X.D2, T1.D2, T3.Q1         \
	VEOR	T3.B16, ACC0.B16, ACC0.B16 \
	VPMULL	T0.D1, T2.D1, T3.Q1        \
	VEOR	T3.B16, ACCM.B16, ACCM.B16

	MOVD	productTable+0(FP), pTbl
	MOVD	data_base+8(FP), aut
	MOVD	data_len+16(FP), autLen
	MOVD	T+32(FP), tPtr

	VEOR	ACC0.B16, ACC0.B16, ACC0.B16
	CBZ	autLen, dataBail

	MOVD	$0xC2, H0
	LSL	$56, H0
	VMOV	H0, POLY.D[0]
	MOVD	$1, H0
	VMOV	H0, POLY.D[1]