16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "memory/allocation.inline.hpp"
  27 #include "memory/cardTableRS.hpp"
  28 #include "memory/genCollectedHeap.hpp"
  29 #include "memory/generation.hpp"
  30 #include "memory/space.hpp"
  31 #include "oops/oop.inline.hpp"
  32 #include "runtime/atomic.inline.hpp"
  33 #include "runtime/java.hpp"
  34 #include "runtime/os.hpp"
  35 #include "utilities/macros.hpp"
  36 #if INCLUDE_ALL_GCS
  37 #include "gc_implementation/g1/concurrentMark.hpp"
  38 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
  39 #endif // INCLUDE_ALL_GCS
  40 
  41 CardTableRS::CardTableRS(MemRegion whole_heap) :
  42   GenRemSet(),
  43   _cur_youngergen_card_val(youngergenP1_card)
  44 {
  45 #if INCLUDE_ALL_GCS
  46   if (UseG1GC) {
  47       _ct_bs = new G1SATBCardTableLoggingModRefBS(whole_heap);
  48   } else {
  49     _ct_bs = new CardTableModRefBSForCTRS(whole_heap);
  50   }
  51 #else
  52   _ct_bs = new CardTableModRefBSForCTRS(whole_heap);
  53 #endif
  54   _ct_bs->initialize();
  55   set_bs(_ct_bs);
  56   _last_cur_val_in_gen = NEW_C_HEAP_ARRAY3(jbyte, GenCollectedHeap::max_gens + 1,
  57                          mtGC, CURRENT_PC, AllocFailStrategy::RETURN_NULL);
  58   if (_last_cur_val_in_gen == NULL) {
  59     vm_exit_during_initialization("Could not create last_cur_val_in_gen array.");
  60   }
  61   for (int i = 0; i < GenCollectedHeap::max_gens + 1; i++) {
  62     _last_cur_val_in_gen[i] = clean_card_val();
  63   }
  64   _ct_bs->set_CTRS(this);
  65 }
  66 
  67 CardTableRS::~CardTableRS() {
  68   if (_ct_bs) {
  69     delete _ct_bs;
  70     _ct_bs = NULL;
  71   }
  72   if (_last_cur_val_in_gen) {
  73     FREE_C_HEAP_ARRAY(jbyte, _last_cur_val_in_gen);

  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "memory/allocation.inline.hpp"
  27 #include "memory/cardTableRS.hpp"
  28 #include "memory/genCollectedHeap.hpp"
  29 #include "memory/generation.hpp"
  30 #include "memory/space.hpp"
  31 #include "oops/oop.inline.hpp"
  32 #include "runtime/atomic.inline.hpp"
  33 #include "runtime/java.hpp"
  34 #include "runtime/os.hpp"
  35 #include "utilities/macros.hpp"




  36 
  37 CardTableRS::CardTableRS(MemRegion whole_heap) :
  38   GenRemSet(),
  39   _cur_youngergen_card_val(youngergenP1_card)
  40 {
  41   guarantee(UseSerialGC || UseConcMarkSweepGC, "sanity");



  42   _ct_bs = new CardTableModRefBSForCTRS(whole_heap);




  43   _ct_bs->initialize();
  44   set_bs(_ct_bs);
  45   _last_cur_val_in_gen = NEW_C_HEAP_ARRAY3(jbyte, GenCollectedHeap::max_gens + 1,
  46                          mtGC, CURRENT_PC, AllocFailStrategy::RETURN_NULL);
  47   if (_last_cur_val_in_gen == NULL) {
  48     vm_exit_during_initialization("Could not create last_cur_val_in_gen array.");
  49   }
  50   for (int i = 0; i < GenCollectedHeap::max_gens + 1; i++) {
  51     _last_cur_val_in_gen[i] = clean_card_val();
  52   }
  53   _ct_bs->set_CTRS(this);
  54 }
  55 
  56 CardTableRS::~CardTableRS() {
  57   if (_ct_bs) {
  58     delete _ct_bs;
  59     _ct_bs = NULL;
  60   }
  61   if (_last_cur_val_in_gen) {
  62     FREE_C_HEAP_ARRAY(jbyte, _last_cur_val_in_gen);