1 /*
   2  * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  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 "incls/_precompiled.incl"
  26 # include "incls/_cardTableRS.cpp.incl"











  27 
  28 CardTableRS::CardTableRS(MemRegion whole_heap,
  29                          int max_covered_regions) :
  30   GenRemSet(),
  31   _cur_youngergen_card_val(youngergenP1_card),
  32   _regions_to_iterate(max_covered_regions - 1)
  33 {
  34 #ifndef SERIALGC
  35   if (UseG1GC) {
  36       _ct_bs = new G1SATBCardTableLoggingModRefBS(whole_heap,
  37                                                   max_covered_regions);
  38   } else {
  39     _ct_bs = new CardTableModRefBSForCTRS(whole_heap, max_covered_regions);
  40   }
  41 #else
  42   _ct_bs = new CardTableModRefBSForCTRS(whole_heap, max_covered_regions);
  43 #endif
  44   set_bs(_ct_bs);
  45   _last_cur_val_in_gen = new jbyte[GenCollectedHeap::max_gens + 1];
  46   if (_last_cur_val_in_gen == NULL) {

   1 /*
   2  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  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/java.hpp"
  33 #include "runtime/os.hpp"
  34 #ifndef SERIALGC
  35 #include "gc_implementation/g1/concurrentMark.hpp"
  36 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
  37 #endif
  38 
  39 CardTableRS::CardTableRS(MemRegion whole_heap,
  40                          int max_covered_regions) :
  41   GenRemSet(),
  42   _cur_youngergen_card_val(youngergenP1_card),
  43   _regions_to_iterate(max_covered_regions - 1)
  44 {
  45 #ifndef SERIALGC
  46   if (UseG1GC) {
  47       _ct_bs = new G1SATBCardTableLoggingModRefBS(whole_heap,
  48                                                   max_covered_regions);
  49   } else {
  50     _ct_bs = new CardTableModRefBSForCTRS(whole_heap, max_covered_regions);
  51   }
  52 #else
  53   _ct_bs = new CardTableModRefBSForCTRS(whole_heap, max_covered_regions);
  54 #endif
  55   set_bs(_ct_bs);
  56   _last_cur_val_in_gen = new jbyte[GenCollectedHeap::max_gens + 1];
  57   if (_last_cur_val_in_gen == NULL) {