// second that elapse.
func traceClockUnitsPerSecond() uint64 {
	if osHasLowResClock {
		// We're using cputicks as our clock, so we need a real estimate.
		return uint64(ticksPerSecond() / traceTimeDiv)
	}
	// Our clock is nanotime, so it's just the constant time division.
	// (trace clock units / nanoseconds) * (1e9 nanoseconds / 1 second)
	return uint64(1.0 / float64(traceTimeDiv) * 1e9)
}

//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname pprof_cyclesPerSecond runtime/pprof.runtime_cyclesPerSecond
func pprof_cyclesPerSecond() int64 {
	return ticksPerSecond()
}

// readProfile, provided to runtime/pprof, returns the next chunk of
// binary CPU profiling stack trace data, blocking until data is available.