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/_blockOffsetTable.cpp.incl"






  27 
  28 //////////////////////////////////////////////////////////////////////
  29 // BlockOffsetSharedArray
  30 //////////////////////////////////////////////////////////////////////
  31 
  32 BlockOffsetSharedArray::BlockOffsetSharedArray(MemRegion reserved,
  33                                                size_t init_word_size):
  34   _reserved(reserved), _end(NULL)
  35 {
  36   size_t size = compute_size(reserved.word_size());
  37   ReservedSpace rs(size);
  38   if (!rs.is_reserved()) {
  39     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  40   }
  41   if (!_vs.initialize(rs, 0)) {
  42     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  43   }
  44   _offset_array = (u_char*)_vs.low_boundary();
  45   resize(init_word_size);
  46   if (TraceBlockOffsetTable) {

   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 "gc_interface/collectedHeap.inline.hpp"
  27 #include "memory/blockOffsetTable.inline.hpp"
  28 #include "memory/iterator.hpp"
  29 #include "memory/space.inline.hpp"
  30 #include "memory/universe.hpp"
  31 #include "oops/oop.inline.hpp"
  32 #include "runtime/java.hpp"
  33 
  34 //////////////////////////////////////////////////////////////////////
  35 // BlockOffsetSharedArray
  36 //////////////////////////////////////////////////////////////////////
  37 
  38 BlockOffsetSharedArray::BlockOffsetSharedArray(MemRegion reserved,
  39                                                size_t init_word_size):
  40   _reserved(reserved), _end(NULL)
  41 {
  42   size_t size = compute_size(reserved.word_size());
  43   ReservedSpace rs(size);
  44   if (!rs.is_reserved()) {
  45     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  46   }
  47   if (!_vs.initialize(rs, 0)) {
  48     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  49   }
  50   _offset_array = (u_char*)_vs.low_boundary();
  51   resize(init_word_size);
  52   if (TraceBlockOffsetTable) {