c# - 垃圾收集器从哪里开始？

Question

根据我的阅读，GC 从“根”开始，并在 GC 运行扫描之前跟踪并标记所有活动对象。但我不确定是什么构成了根。例如，在下面的代码中，Main 方法从一个线程开始并存在。那么当 GC 启动时，它是如何知道选择哪个部分作为 root 的呢？

         static void Main()
         {

             var thread = new Thread(SomeLongRunningProcess);
             thread.Start();

         }

        static void SomeLongRunningProcess()
        {


        }

Answer 1

Roots include

• static fields (all static fields of all types in all assemblies loaded, for each AppDomain in the process)
• local variables (including those in CPU registers, for each thread)
• the f-reachable queue (a list of objects having a finalizer)
• the finalization queue (a list of objects otherwise garbage, but waiting for finalization)