golang/go · error

%s: duplicate symbol definition

Error message

%s: duplicate symbol definition

What it means

Error "%s: duplicate symbol definition" thrown in golang/go.

Source

Thrown at src/cmd/link/internal/loadpe/ldpe.go:568

		}
		if l.OuterSym(s) != 0 {
			if l.AttrDuplicateOK(s) {
				continue
			}
			outerName := l.SymName(l.OuterSym(s))
			sectName := l.SymName(state.sectsyms[sect])
			return nil, fmt.Errorf("%s: duplicate symbol reference: %s in both %s and %s", pn, l.SymName(s), outerName, sectName)
		}

		bld = makeUpdater(l, bld, s)
		sectsym := state.sectsyms[sect]
		bld.SetType(l.SymType(sectsym))
		l.AddInteriorSym(sectsym, s)
		bld.SetValue(int64(pesym.Value))
		bld.SetSize(4)
		if l.SymType(sectsym).IsText() {
			if bld.External() && !bld.DuplicateOK() {
				return nil, fmt.Errorf("%s: duplicate symbol definition", l.SymName(s))
			}
			bld.SetExternal(true)
		}
		if sz, ok := state.comdats[uint16(pesym.SectionNumber-1)]; ok {
			// This is a COMDAT definition. Record that we're picking
			// this instance so that we can ignore future defs.
			if _, ok := comdatDefinitions[l.SymName(s)]; ok {
				return nil, fmt.Errorf("internal error: preexisting COMDAT definition for %q", name)
			}
			comdatDefinitions[l.SymName(s)] = sz
		}
	}

	// Sort outer lists by address, adding to textp.
	// This keeps textp in increasing address order.
	for _, sect := range f.Sections {
		s := state.sectsyms[sect]
		if s == 0 {

View on GitHub (pinned to b6b368adc5)

When it happens

Trigger: Thrown at src/cmd/link/internal/loadpe/ldpe.go:568 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of golang/go@b6b368adc5 (2026-08-12). Data as JSON: /api/errors/ba02e3854afd6bf5. Report an issue: GitHub.