// info.
	Local bool

	// EmitMetaFile if non-empty is the path to which the cover tool should
	// directly emit a coverage meta-data file for the package, if the
	// package has any functions in it. The go command will pass in a value
	// here if we've been asked to run "go test -cover" on a package that
	// doesn't have any *_test.go files.
	EmitMetaFile string
}

	outcfg := filepath.Join(outdir, "outcfg.txt")
	p := covcmd.CoverPkgConfig{
		PkgPath:      ppath,
		PkgName:      pname,
		Granularity:  gran,
		OutConfig:    outcfg,
		EmitMetaFile: mpath,
	}
	data, err := json.Marshal(p)
	if err != nil {
		t.Fatalf("json.Marshal failed: %v", err)
	}
	writeFile(t, incfg, data)
	return incfg
}

	if *pkgcfg == "" {
		return
	}

	// If the "EmitMetaFile" path has been set, invoke a helper
	// that will write out a pre-cooked meta-data file for this package
	// to the specified location, in effect simulating the execution
	// of a test binary that doesn't do any testing to speak of.
	if pkgconfig.EmitMetaFile != "" {
		p.emitMetaFile(pkgconfig.EmitMetaFile)
	}

		// depending on user demand.
		Granularity: "perblock",
		OutConfig:   p.Internal.Cover.Cfg,
		Local:       p.Internal.Local,
	}
	if ba, ok := a.Actor.(*buildActor); ok && ba.covMetaFileName != "" {
		pcfg.EmitMetaFile = a.Objdir + ba.covMetaFileName
	}
	if a.Package.Module != nil {
		pcfg.ModulePath = a.Package.Module.Path
	}
	data, err := json.Marshal(pcfg)
	if err != nil {
		return err
	}