pkg debug/buildinfo, type BuildInfo = debug.BuildInfo
pkg debug/dwarf, type BasicType struct, DataBitOffset int64
pkg debug/dwarf, type StructField struct, DataBitOffset int64
pkg debug/elf, const R_PPC64_RELATIVE = 22
pkg debug/elf, const R_PPC64_RELATIVE R_PPC64
pkg debug/plan9obj, var ErrNoSymbols error
pkg go/ast, method (*IndexListExpr) End() token.Pos
pkg go/ast, method (*IndexListExpr) Pos() token.Pos

//
// other integer conditional branch
//
//	LBRA rreg ',' rel
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
label3:
	BLTZ	R1, 1(PC)	// BLTZ R1, 1(PC)	// 04200001
	BLTZ	R1, label3	// BLTZ R1, 22		// 0420fffd

//
// floating point conditional branch
//
//	LBRA rel
label4:
	BFPT	1(PC)	// BFPT 1(PC)			// 4501000100000000
	BFPT	label4	// BFPT 24			// 4501fffd00000000

//inst:
//

	ORRW R13<<4, R8, R26                       // 1a110d2a
	ORR R3<<22, R5, R6                         // a65803aa
	PRFM (R8), $25                             // 190180f9
	PRFM (R2), PLDL1KEEP                       // 400080f9
	//TODO PRFM (R27)(R30.SXTW<<3), PLDL2STRM  // 63dbbff8
	//TODO PRFUM 22(R16), PSTL1KEEP            // 106281f8
	RBITW R9, R22                              // 3601c05a

	fileHeaderLen            = 30         // + filename + extra
	directoryHeaderLen       = 46         // + filename + extra + comment
	directoryEndLen          = 22         // + comment
	dataDescriptorLen        = 16         // four uint32: descriptor signature, crc32, compressed size, size
	dataDescriptor64Len      = 24         // two uint32: signature, crc32 | two uint64: compressed size, size

// fitsInOctal reports whether the integer x fits in a field n-bytes long
// using octal encoding with the appropriate NUL terminator.
func fitsInOctal(n int, x int64) bool {
	octBits := uint(n-1) * 3
	return x >= 0 && (n >= 22 || x < 1<<octBits)
}

// parsePAXTime takes a string of the form %d.%d as described in the PAX
// specification. Note that this implementation allows for negative timestamps,

			map[string]string{"key1": "", "key2": "val2"}, true},
		{"22 GNU.sparse.size=10\n26 GNU.sparse.numblocks=2\n" +
			"23 GNU.sparse.offset=1\n25 GNU.sparse.numbytes=2\n" +
			"23 GNU.sparse.offset=3\n25 GNU.sparse.numbytes=4\n",
			map[string]string{paxGNUSparseSize: "10", paxGNUSparseNumBlocks: "2", paxGNUSparseMap: "1,2,3,4"}, true},
		{"22 GNU.sparse.size=10\n26 GNU.sparse.numblocks=1\n" +

00001e0 85 9d 8f b6 d7 88 07 4a 86 03 db 64 f3 d9 92 73
00001f0 df ec a7 fc 23 4c 8d 83 79 63 2a d9 fd 8d b3 c8
0000200 8f 7e d4 19 85 e6 8d 1c 76 f0 8b 58 32 fd 9a d6
0000210 85 e2 48 ad c3 d5 60 6f 7e 22 dd ef 09 49 7c 7f
0000220 3a 45 c3 71 b7 df f3 4c 63 fb b5 d9 31 5f 6e d6
0000230 24 1d a4 4a fe 32 a7 5c 16 48 5c 3e 08 6b 8a d3
0000240 25 1d a2 12 a5 59 24 ea 20 5f 52 6d ad 94 db 6b

	names := []string{
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/file.txt",
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/file.txt",
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/333/file.txt",
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/file.txt",

	ADDW	$1, R2, R3
	ADDW	R1, R2, R3
	ADDW	R1, ZR, R3
	ADD	$1, R2, R3
	ADD	R1, R2, R3
	ADD	R1, ZR, R3
	ADD	$1, R2, R3
	ADDW	$1, R2
	ADDW	R1, R2
	ADD	$1, R2
	ADD	R1, R2
	ADD	R1>>11, R2
	ADD	R1<<22, R2
	ADD	R1->33, R2
	ADD	$0x000aaa, R2, R3               // ADD $2730, R2, R3                      // 43a82a91
	ADD	$0x000aaa, R2                   // ADD $2730, R2                          // 42a82a91

	if _, err := f.zipr.ReadAt(buf[:], f.headerOffset); err != nil {
		return 0, err
	}
	b := readBuf(buf[:])
	if sig := b.uint32(); sig != fileHeaderSignature {
		return 0, ErrFormat
	}
	b = b[22:] // skip over most of the header
	filenameLen := int(b.uint16())
	extraLen := int(b.uint16())
	return int64(fileHeaderLen + filenameLen + extraLen), nil
}