rs.PkgIdx = goobj.PkgIdxNone
			rs.SymIdx = nonpkgidx
			rs.Set(AttrIndexed, true)
			if nonpkgidx != nonpkgdef+int32(len(ctxt.nonpkgrefs)) {
				panic("bad index")
			}
			ctxt.nonpkgrefs = append(ctxt.nonpkgrefs, rs)
			nonpkgidx++
			return
		}
		if k, ok := ctxt.pkgIdx[pkg]; ok {
			rs.PkgIdx = k
			return
		}
		rs.PkgIdx = ipkg
		ctxt.pkgIdx[pkg] = ipkg

//       ... // same as SymbolDefs
//    }
//    NonPkgDefs [...]struct { // non-pkg symbol definitions
//       ... // same as SymbolDefs
//    }
//    NonPkgRefs [...]struct { // non-pkg symbol references
//       ... // same as SymbolDefs
//    }
//
//    RefFlags [...]struct { // referenced symbol flags
//       Sym   symRef
//       Flag  uint8
//       Flag2 uint8

	h.Offsets[goobj.BlkNonpkgdef] = w.Offset()
	for _, s := range ctxt.nonpkgdefs {
		w.Sym(s)
	}

	// Non-pkg symbol references
	h.Offsets[goobj.BlkNonpkgref] = w.Offset()
	for _, s := range ctxt.nonpkgrefs {
		w.Sym(s)
	}

	// Referenced package symbol flags
	h.Offsets[goobj.BlkRefFlags] = w.Offset()
	w.refFlags()

	// Hashes
	h.Offsets[goobj.BlkHash64] = w.Offset()

	hasheddefs   []*LSym // list of defined hashed (content-addressable) symbols
	nonpkgdefs   []*LSym // list of defined non-package symbols
	nonpkgrefs   []*LSym // list of referenced non-package symbols

	Fingerprint goobj.FingerprintType // fingerprint of symbol indices, to catch index mismatch
}

func (ctxt *Link) Diag(format string, args ...interface{}) {