if err != nil {
		t.Fatal(err)
	}
	for _, sample := range p.Sample {
		count := uintptr(sample.Value[0])
		f(count, sample.Location, sample.Label)
	}
	return p
}

func cpuProfilingBroken() bool {
	switch runtime.GOOS {
	case "plan9":
		// Profiling unimplemented.
		return true
	case "aix":
		// See https://golang.org/issue/45170.
		return true