1 /*
   2  * Copyright (c) 2003, 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/_serialize.cpp.incl"
  27 
  28 
  29 // Serialize out the block offset shared array for the shared spaces.
  30 
  31 void CompactingPermGenGen::serialize_bts(SerializeOopClosure* soc) {
  32   _ro_bts->serialize(soc, readonly_bottom, readonly_end);
  33   _rw_bts->serialize(soc, readwrite_bottom, readwrite_end);
  34 }
  35 
  36 
  37 // Read/write a data stream for restoring/preserving oop pointers and
  38 // miscellaneous data from/to the shared archive file.
  39 
  40 void CompactingPermGenGen::serialize_oops(SerializeOopClosure* soc) {
  41   int tag = 0;
  42   soc->do_tag(--tag);
  43 
  44   assert(!UseCompressedOops, "UseCompressedOops doesn't work with shared archive");
  45   // Verify the sizes of various oops in the system.
  46   soc->do_tag(sizeof(oopDesc));
  47   soc->do_tag(sizeof(instanceOopDesc));
  48   soc->do_tag(sizeof(methodOopDesc));
  49   soc->do_tag(sizeof(constMethodOopDesc));
  50   soc->do_tag(sizeof(methodDataOopDesc));
  51   soc->do_tag(arrayOopDesc::base_offset_in_bytes(T_BYTE));
  52   soc->do_tag(sizeof(constantPoolOopDesc));
  53   soc->do_tag(sizeof(constantPoolCacheOopDesc));
  54   soc->do_tag(objArrayOopDesc::base_offset_in_bytes());
  55   soc->do_tag(typeArrayOopDesc::base_offset_in_bytes(T_BYTE));
  56   soc->do_tag(sizeof(symbolOopDesc));
  57   soc->do_tag(sizeof(klassOopDesc));
  58   soc->do_tag(sizeof(markOopDesc));
  59   soc->do_tag(sizeof(compiledICHolderOopDesc));
  60 
  61   // Dump the block offset table entries.
  62   GenCollectedHeap* gch = GenCollectedHeap::heap();
  63   CompactingPermGenGen* pg = (CompactingPermGenGen*)gch->perm_gen();
  64   pg->serialize_bts(soc);
  65   soc->do_tag(--tag);
  66   pg->ro_space()->serialize_block_offset_array_offsets(soc);
  67   soc->do_tag(--tag);
  68   pg->rw_space()->serialize_block_offset_array_offsets(soc);
  69   soc->do_tag(--tag);
  70 
  71   // Special case - this oop needed in oop->is_oop() assertions.
  72   soc->do_ptr((void**)&Universe::_klassKlassObj);
  73   soc->do_tag(--tag);
  74 
  75   // Dump/restore miscellaneous oops.
  76   Universe::oops_do(soc, true);
  77   soc->do_tag(--tag);
  78 
  79   vmSymbols::oops_do(soc, true);               soc->do_tag(--tag);
  80   CodeCache::oops_do(soc);                     soc->do_tag(--tag);
  81   soc->do_tag(666);
  82 }