cmd.Env = append(cmd.Env, "PPROF_TMPDIR="+os.TempDir())
	top, err := cmd.CombinedOutput()
	t.Logf("%s", top)
	if err != nil {
		t.Error(err)
	} else if bytes.Contains(top, []byte("ExternalCode")) {
		t.Error("profiler refers to ExternalCode")
	}
}

// Test that runtime.abort does so.
func TestAbort(t *testing.T) {
	// Pass GOTRACEBACK to ensure we get runtime frames.