455 assert(_whole_heap.contains(result),
456 err_msg("Returning result = "PTR_FORMAT" out of bounds of "
457 " card marking array's _whole_heap = ["PTR_FORMAT","PTR_FORMAT")",
458 result, _whole_heap.start(), _whole_heap.end()));
459 return result;
460 }
461
462 // Mapping from address to card marking array index.
463 size_t index_for(void* p) {
464 assert(_whole_heap.contains(p),
465 err_msg("Attempt to access p = "PTR_FORMAT" out of bounds of "
466 " card marking array's _whole_heap = ["PTR_FORMAT","PTR_FORMAT")",
467 p, _whole_heap.start(), _whole_heap.end()));
468 return byte_for(p) - _byte_map;
469 }
470
471 const jbyte* byte_for_index(const size_t card_index) const {
472 return _byte_map + card_index;
473 }
474
475 void verify();
476 void verify_guard();
477
478 // val_equals -> it will check that all cards covered by mr equal val
479 // !val_equals -> it will check that all cards covered by mr do not equal val
480 void verify_region(MemRegion mr, jbyte val, bool val_equals) PRODUCT_RETURN;
481 void verify_not_dirty_region(MemRegion mr) PRODUCT_RETURN;
482 void verify_dirty_region(MemRegion mr) PRODUCT_RETURN;
483
484 static size_t par_chunk_heapword_alignment() {
485 return ParGCCardsPerStrideChunk * card_size_in_words;
486 }
487
488 };
489
490 class CardTableRS;
491
492 // A specialization for the CardTableRS gen rem set.
493 class CardTableModRefBSForCTRS: public CardTableModRefBS {
494 CardTableRS* _rs;
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455 assert(_whole_heap.contains(result),
456 err_msg("Returning result = "PTR_FORMAT" out of bounds of "
457 " card marking array's _whole_heap = ["PTR_FORMAT","PTR_FORMAT")",
458 result, _whole_heap.start(), _whole_heap.end()));
459 return result;
460 }
461
462 // Mapping from address to card marking array index.
463 size_t index_for(void* p) {
464 assert(_whole_heap.contains(p),
465 err_msg("Attempt to access p = "PTR_FORMAT" out of bounds of "
466 " card marking array's _whole_heap = ["PTR_FORMAT","PTR_FORMAT")",
467 p, _whole_heap.start(), _whole_heap.end()));
468 return byte_for(p) - _byte_map;
469 }
470
471 const jbyte* byte_for_index(const size_t card_index) const {
472 return _byte_map + card_index;
473 }
474
475 // Print a description of the memory for the barrier set
476 virtual void print_on(outputStream* st) const;
477
478 void verify();
479 void verify_guard();
480
481 // val_equals -> it will check that all cards covered by mr equal val
482 // !val_equals -> it will check that all cards covered by mr do not equal val
483 void verify_region(MemRegion mr, jbyte val, bool val_equals) PRODUCT_RETURN;
484 void verify_not_dirty_region(MemRegion mr) PRODUCT_RETURN;
485 void verify_dirty_region(MemRegion mr) PRODUCT_RETURN;
486
487 static size_t par_chunk_heapword_alignment() {
488 return ParGCCardsPerStrideChunk * card_size_in_words;
489 }
490
491 };
492
493 class CardTableRS;
494
495 // A specialization for the CardTableRS gen rem set.
496 class CardTableModRefBSForCTRS: public CardTableModRefBS {
497 CardTableRS* _rs;
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