Sample.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[SharedBetweenAnimators]
public class Sample : StateMachineBehaviour {

	[SerializeField] string tag;
	private int entryCount = 0;

	override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) 
	{
		entryCount++;
		Debug.LogFormat ("entry : {0} animator:{1} state:{2}", entryCount, animator.name, tag);
	}
}