switch runtime.GOOS {
	case "plan9", "windows":
		t.Skipf("cgo callback test requires pthreads and is not supported on %s", runtime.GOOS)
	}
	testTraceProg(t, "cgo-callback.go", nil)
}

func TestTraceCPUProfile(t *testing.T) {
	testTraceProg(t, "cpu-profile.go", func(t *testing.T, tb, stderr []byte, _ bool) {
		// Parse stderr which has a CPU profile summary, if everything went well.