if len(rest) > 2 && rest[0] == '\n' && rest[len(rest)-1] == '\n' {
		extend = string(rest[1 : len(rest)-1])
	}

	// Now we can build up a useful data structure.
	// First the zone information.
	//	utcoff[4] isdst[1] nameindex[1]
	nzone := n[NZone]
	if nzone == 0 {
		// Reject tzdata files with no zones. There's nothing useful in them.

		return 0, bitSizeError(fnParseUint, s0, bitSize)
	}

	// Cutoff is the smallest number such that cutoff*base > maxUint64.
	// Use compile-time constants for common cases.
	var cutoff uint64
	switch base {
	case 10:
		cutoff = maxUint64/10 + 1
	case 16:
		cutoff = maxUint64/16 + 1
	default:
		cutoff = maxUint64/uint64(base) + 1
	}

	maxVal := uint64(1)<<uint(bitSize) - 1

	//
	// This must be done as a separate pass because of the
	// requirement that the comment be followed by a blank line.
	var cutoff int
	for i, line := range lines {
		line = bytes.TrimSpace(line)
		if !bytes.HasPrefix(line, slashSlash) {
			if len(line) > 0 {
				break
			}
			cutoff = i
		}
	}

	for i, line := range lines {
		line = bytes.TrimSpace(line)
		if !bytes.HasPrefix(line, slashSlash) {

	idx := ffb.idx + uint32(ffb.subbuckets[i])

	// Find the ftab entry.
	for datap.ftab[idx+1].entryoff <= pcOff {
		idx++
	}

	funcoff := datap.ftab[idx].funcoff
	return funcInfo{(*_func)(unsafe.Pointer(&datap.pclntable[funcoff])), datap}
}

// A srcFunc represents a logical function in the source code. This may

	kind abiStepKind

	// offset and size together describe a part of a Go value
	// in memory.
	offset uintptr
	size   uintptr // size in bytes of the part

	// These fields describe the ABI side of the translation.
	stkOff uintptr // stack offset, used if kind == abiStepStack
	ireg   int     // integer register index, used if kind == abiStepIntReg or kind == abiStepPointer
	freg   int     // FP register index, used if kind == abiStepFloatReg
}

		setGCPhase(_GCoff)
		stwSwept = gcSweep(work.mode)
	})

	mp.traceback = 0
	casgstatus(curgp, _Gwaiting, _Grunning)

	trace := traceAcquire()
	if trace.ok() {
		trace.GCDone()
		traceRelease(trace)
	}

	// all done
	mp.preemptoff = ""

	if gcphase != _GCoff {
		throw("gc done but gcphase != _GCoff")
	}

			off, decOff, firstPart, decryptSkip, seqNum = getCompressedOffsets(oi, off, decrypt)
			decLength = length
			length = oi.Size - off
			// For negative length we read everything.
			if decLength < 0 {
				decLength = actualSize - decOff
			}

			// Reply back invalid range if the input offset and length fall out of range.
			if decOff > actualSize || decOff+decLength > actualSize {

	})

	// All filenames are in the postable.
	for _, f := range w.ctxt.PosTable.FileTable() {
		w.AddString(filepath.ToSlash(f))
	}
}

// cutoff is the maximum data section size permitted by the linker
// (see issue #9862).
const cutoff = int64(2e9) // 2 GB (or so; looks better in errors than 2^31)

func (w *writer) Sym(s *LSym) {
	name := s.Name
	abi := uint16(s.ABI())
	if s.Static() {

		morebuf := thisg.m.morebuf
		gp.syscallsp = morebuf.sp
		gp.syscallpc = morebuf.pc
		pcname, pcoff := "(unknown)", uintptr(0)
		f := findfunc(gp.sched.pc)
		if f.valid() {
			pcname = funcname(f)
			pcoff = gp.sched.pc - f.entry()
		}
		print("runtime: newstack at ", pcname, "+", hex(pcoff),
			" sp=", hex(gp.sched.sp), " stack=[", hex(gp.stack.lo), ", ", hex(gp.stack.hi), "]\n",

	p.w.ZeroUntil(sval / ptrsize)
	p.w.Append(prog[4:], nptr)
}

// cutoff is the maximum data section size permitted by the linker
// (see issue #9862).
const cutoff = 2e9 // 2 GB (or so; looks better in errors than 2^31)

// check accumulated size of data sections
func (state *dodataState) checkdatsize(symn sym.SymKind) {
	if state.datsize > cutoff {