// data collected by the Metric will be collected and exported as a histogram, with the specified bounds.
func NewDistribution(name, description string, bounds []float64, opts ...Options) Metric {
	knownMetrics.register(MetricDefinition{
		Name:        name,
		Type:        "Distribution",
		Description: description,
		Bounds:      bounds,
	})
	o, dm := createOptions(name, description, opts...)
	if dm != nil {
		return dm
	}

	switch size {
	case 1:
		return uint64(b[0])
	case 2:
		_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
		return uint64(b[1]) | uint64(b[0])<<8
	case 4:
		_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
		return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24
	case 8:
		_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include <pthread.h>
#include "libcgo.h"

void
x_cgo_getstackbound(uintptr bounds[2])
{
	void* addr;
	size_t size;
	pthread_t p;

	p = pthread_self();
	addr = pthread_get_stackaddr_np(p); // high address (!)
	size = pthread_get_stacksize_np(p);

	// bounds points into the Go stack. TSAN can't see the synchronization

	// same as the default stack bounds.
	pthread_attr_getstacksize(&attr, &size);
	addr = __builtin_frame_address(0) + 4096 - size;
#endif
	pthread_attr_destroy(&attr);

	// bounds points into the Go stack. TSAN can't see the synchronization
	// in Go around stack reuse.
	_cgo_tsan_acquire();
	bounds[0] = (uintptr)addr;
	bounds[1] = (uintptr)addr + size;
	_cgo_tsan_release();

	// See if the solution does not run into any bounds.
	fairProp := requiredSumF / targetSum
	if lbRange.max <= fairProp && fairProp <= ubRange.min { // no bounds matter
		for idx := range classes {
			ans[idx] = relativeItems[idx].target * fairProp
		}
		return ans, fairProp, nil
	}
	// Sadly, some bounds matter.
	// We find the solution by sorting the bounds and considering progressively

	m.Set(sysCPUSteal, cpuStealVal)

	// metrics-resource.go runs a job to collect resource metrics including their Avg values and
	// stores them in resourceMetricsMap. We can use it to get the Avg values of CPU idle and IOWait.
	cpuResourceMetrics, found := resourceMetricsMap[cpuSubsystem]
	if found {
		if cpuIdleMetric, ok := cpuResourceMetrics[getResourceKey(cpuIdle, nil)]; ok {

	// Avoid round tripping the ClusterConfiguration embedded in the InitConfiguration, since it is
	// only present in the internal version and not in public versions
	obj.ClusterConfiguration = kubeadm.ClusterConfiguration{}

	// Adds the default bootstrap token to get the round trip working
	obj.BootstrapTokens = []bootstraptokenv1.BootstrapToken{
		{

		n := copy(xh.buf[xh.cnt:], b)
		b = b[n:]
		xh.v[0] = xh.round(xh.v[0], binary.LittleEndian.Uint64(xh.buf[:]))
		xh.v[1] = xh.round(xh.v[1], binary.LittleEndian.Uint64(xh.buf[8:]))
		xh.v[2] = xh.round(xh.v[2], binary.LittleEndian.Uint64(xh.buf[16:]))
		xh.v[3] = xh.round(xh.v[3], binary.LittleEndian.Uint64(xh.buf[24:]))
		xh.cnt = 0
	}

	for len(b) >= 32 {
		xh.v[0] = xh.round(xh.v[0], binary.LittleEndian.Uint64(b))

                return "?";
            }
        }

        assert bounds.length > 0;

        boolean first = true;
        for (TypeWrapper bound : bounds) {
            if (!first) {
                sb.append(" & ");
            }

            first = false;
            sb.append(bound.getRepresentation(full));
        }

        return sb.toString();
    }

	// We want to trigger a bounds check on the g0 stack. To do this, we
	// need to call a splittable function through systemstack().
	// SetGCPercent contains such a systemstack call.
	gogc := debug.SetGCPercent(100)
	debug.SetGCPercent(gogc)
}

// Regression test for https://go.dev/issue/62440. It should be possible for C
// threads to call into Go from different stacks without crashing due to g0
// stack bounds checks.
//