// any alignment padding itself, working around the
	// issue.
	if size%16 != 0 {
		n := 16 - size%16
		s6b := ldr.MakeSymbolUpdater(s6)
		s6b.Grow(s6b.Size() + n)
		s6b.SetSize(s6b.Size() + n)
		size += n
	}

	if size > 0 {

		a.Target = "DO NOT USE -  pseudo-cache Target"
		a.built = "DO NOT USE - pseudo-cache built"
		return true
	}

	// Check to see if the action output is cached.
	if file, _, err := cache.GetFile(c, actionHash); err == nil {
		if a.Mode == "preprocess PGO profile" {
			// Preprocessed PGO profiles don't embed a build ID, so
			// skip the build ID lookup.

	}
	version, versionTime := readVERSION(goroot)

	// Start with files from GOROOT, filtering out non-distribution files.
	base, err := NewArchive(goroot)
	if err != nil {
		log.Fatal(err)
	}
	base.SetTime(versionTime)
	base.SetMode(mode)
	base.Remove(
		".git/**",
		".gitattributes",
		".github/**",
		".gitignore",
		"VERSION.cache",
		"misc/cgo/*/_obj/**",
		"**/.DS_Store",