if s == 0 || !l.AttrReachable(s) {
		return
	}
	bld := l.MakeSymbolUpdater(s)
	bld.SetType(sym.SDATA)
	addstrdata(arch, l, *flagFieldTrack, buf.String())
}

func (ctxt *Link) addexport() {
	// Track undefined external symbols during external link.
	if ctxt.LinkMode == LinkExternal {
		for _, s := range ctxt.Textp {
			if ctxt.loader.AttrSpecial(s) || ctxt.loader.AttrSubSymbol(s) {
				continue

			Port:        grpcMagicPort,
			LocalhostIP: true,
		})
	}
	return containerPorts
}

func customizeVMEnvironment(ctx resource.Context, cfg echo.Config, clusterEnv string, istiodAddr netip.AddrPort) error {
	f, err := os.OpenFile(clusterEnv, os.O_APPEND|os.O_WRONLY, os.ModeAppend)
	if err != nil {
		return fmt.Errorf("failed opening %s: %v", clusterEnv, err)
	}
	defer f.Close()