// Calculate the size of the runtime.cutab variable.
	var totalEntries uint32
	cuOffsets := make([]uint32, len(cuEntries))
	for i, entries := range cuEntries {
		// Note, cutab is a slice of uint32, so an offset to a cu's entry is just the
		// running total of all cu indices we've needed to store so far, not the
		// number of bytes we've stored so far.
		cuOffsets[i] = totalEntries
		totalEntries += uint32(entries)
	}

	// Length of these two slices should agree
	if len(vars) != len(coffsets) {
		ft.ctxt.Diag("internal error: RegisterChildDIEOffsets vars/offsets length mismatch")
		return
	}

	// Generate the slice of declOffset's based in vars/coffsets
	doffsets := make([]declOffset, len(coffsets))
	for i := range coffsets {
		doffsets[i].dclIdx = vars[i].ChildIndex

		filetab := f.pcfile()
		linetab := f.pcln()
		if t.version == ver116 || t.version == ver118 || t.version == ver120 {
			if f.cuOffset() == ^uint32(0) {
				// skip functions without compilation unit (not real function, or linker generated)
				continue
			}
			cutab = t.cutab[f.cuOffset()*4:]
		}
		pc := t.findFileLine(entry, filetab, linetab, int32(filenum), int32(line), cutab)
		if pc != 0 {
			return pc
		}

	textStart      uintptr // base for function entry PC offsets in this module, equal to moduledata.text
	funcnameOffset uintptr // offset to the funcnametab variable from pcHeader
	cuOffset       uintptr // offset to the cutab variable from pcHeader
	filetabOffset  uintptr // offset to the filetab variable from pcHeader
	pctabOffset    uintptr // offset to the pctab variable from pcHeader

	args        int32  // in/out args size
	deferreturn uint32 // offset of start of a deferreturn call instruction from entry, if any.

	pcsp      uint32
	pcfile    uint32
	pcln      uint32
	npcdata   uint32
	cuOffset  uint32     // runtime.cutab offset of this function's CU
	startLine int32      // line number of start of function (func keyword/TEXT directive)
	funcID    abi.FuncID // set for certain special runtime functions