500 

   500 

   501   // Override

   501   // Override

   502   void check_for_non_bad_heap_word_value(HeapWord* addr,

   502   void check_for_non_bad_heap_word_value(HeapWord* addr,

   503     size_t size) PRODUCT_RETURN;

   503     size_t size) PRODUCT_RETURN;

   504 

   504 

   505   // For use by mark-sweep.  As implemented, mark-sweep-compact is global

   506   // For use by mark-sweep.  As implemented, mark-sweep-compact is global

   506   // in an essential way: compaction is performed across generations, by

   507   // in an essential way: compaction is performed across generations, by

   507   // iterating over spaces.

   508   // iterating over spaces.

   508   void prepare_for_compaction();

   509   void prepare_for_compaction();

   509 

   511 

   510   // Perform a full collection of the generations up to and including max_generation.

   512   // Perform a full collection of the generations up to and including max_generation.

   511   // This is the low level interface used by the public versions of

   513   // This is the low level interface used by the public versions of

   512   // collect() and collect_locked(). Caller holds the Heap_lock on entry.

   514   // collect() and collect_locked(). Caller holds the Heap_lock on entry.

   513   void collect_locked(GCCause::Cause cause, GenerationType max_generation);

   515   void collect_locked(GCCause::Cause cause, GenerationType max_generation);