1 /*
   2  * Copyright (c) 2000, 2012, 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  *

  29 #include "memory/space.inline.hpp"
  30 #include "memory/universe.hpp"
  31 #include "oops/oop.inline.hpp"
  32 #include "runtime/java.hpp"
  33 #include "services/memTracker.hpp"
  34 
  35 //////////////////////////////////////////////////////////////////////
  36 // BlockOffsetSharedArray
  37 //////////////////////////////////////////////////////////////////////
  38 
  39 BlockOffsetSharedArray::BlockOffsetSharedArray(MemRegion reserved,
  40                                                size_t init_word_size):
  41   _reserved(reserved), _end(NULL)
  42 {
  43   size_t size = compute_size(reserved.word_size());
  44   ReservedSpace rs(size);
  45   if (!rs.is_reserved()) {
  46     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  47   }
  48 
  49   MemTracker::record_virtual_memory_type((address)rs.base(), mtGC);

  50 
  51   if (!_vs.initialize(rs, 0)) {
  52     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  53   }
  54   _offset_array = (u_char*)_vs.low_boundary();
  55   resize(init_word_size);
  56   if (TraceBlockOffsetTable) {
  57     gclog_or_tty->print_cr("BlockOffsetSharedArray::BlockOffsetSharedArray: ");
  58     gclog_or_tty->print_cr("  "
  59                   "  rs.base(): " INTPTR_FORMAT
  60                   "  rs.size(): " INTPTR_FORMAT
  61                   "  rs end(): " INTPTR_FORMAT,
  62                   rs.base(), rs.size(), rs.base() + rs.size());
  63     gclog_or_tty->print_cr("  "
  64                   "  _vs.low_boundary(): " INTPTR_FORMAT
  65                   "  _vs.high_boundary(): " INTPTR_FORMAT,
  66                   _vs.low_boundary(),
  67                   _vs.high_boundary());
  68   }
  69 }

   1 /*
   2  * Copyright (c) 2000, 2013, 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  *

  29 #include "memory/space.inline.hpp"
  30 #include "memory/universe.hpp"
  31 #include "oops/oop.inline.hpp"
  32 #include "runtime/java.hpp"
  33 #include "services/memTracker.hpp"
  34 
  35 //////////////////////////////////////////////////////////////////////
  36 // BlockOffsetSharedArray
  37 //////////////////////////////////////////////////////////////////////
  38 
  39 BlockOffsetSharedArray::BlockOffsetSharedArray(MemRegion reserved,
  40                                                size_t init_word_size):
  41   _reserved(reserved), _end(NULL)
  42 {
  43   size_t size = compute_size(reserved.word_size());
  44   ReservedSpace rs(size);
  45   if (!rs.is_reserved()) {
  46     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  47   }
  48 
  49   NMTTrackOp op(NMTTrackOp::TypeOp);
  50   op.execute_op((address)rs.base(), 0, mtGC);
  51 
  52   if (!_vs.initialize(rs, 0)) {
  53     vm_exit_during_initialization("Could not reserve enough space for heap offset array");
  54   }
  55   _offset_array = (u_char*)_vs.low_boundary();
  56   resize(init_word_size);
  57   if (TraceBlockOffsetTable) {
  58     gclog_or_tty->print_cr("BlockOffsetSharedArray::BlockOffsetSharedArray: ");
  59     gclog_or_tty->print_cr("  "
  60                   "  rs.base(): " INTPTR_FORMAT
  61                   "  rs.size(): " INTPTR_FORMAT
  62                   "  rs end(): " INTPTR_FORMAT,
  63                   rs.base(), rs.size(), rs.base() + rs.size());
  64     gclog_or_tty->print_cr("  "
  65                   "  _vs.low_boundary(): " INTPTR_FORMAT
  66                   "  _vs.high_boundary(): " INTPTR_FORMAT,
  67                   _vs.low_boundary(),
  68                   _vs.high_boundary());
  69   }
  70 }