view src/share/vm/memory/serialize.cpp @ 3465:d2a62e0f25eb

6995781: Native Memory Tracking (Phase 1) 7151532: DCmd for hotspot native memory tracking Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd Reviewed-by: acorn, coleenp, fparain
author zgu
date Thu, 28 Jun 2012 17:03:16 -0400
parents 3582bf76420e
children
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/*
 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#include "precompiled.hpp"
#include "classfile/symbolTable.hpp"
#include "classfile/systemDictionary.hpp"
#include "code/codeCache.hpp"
#include "memory/classify.hpp"
#include "memory/compactingPermGenGen.hpp"
#include "oops/compiledICHolderOop.hpp"
#include "oops/methodDataOop.hpp"
#include "oops/objArrayOop.hpp"
#include "oops/oop.inline.hpp"


// Serialize out the block offset shared array for the shared spaces.

void CompactingPermGenGen::serialize_bts(SerializeOopClosure* soc) {
  _ro_bts->serialize(soc, readonly_bottom, readonly_end);
  _rw_bts->serialize(soc, readwrite_bottom, readwrite_end);
}


// Read/write a data stream for restoring/preserving oop pointers and
// miscellaneous data from/to the shared archive file.

void CompactingPermGenGen::serialize_oops(SerializeOopClosure* soc) {
  int tag = 0;
  soc->do_tag(--tag);

  assert(!UseCompressedOops, "UseCompressedOops doesn't work with shared archive");
  // Verify the sizes of various oops in the system.
  soc->do_tag(sizeof(oopDesc));
  soc->do_tag(sizeof(instanceOopDesc));
  soc->do_tag(sizeof(methodOopDesc));
  soc->do_tag(sizeof(constMethodOopDesc));
  soc->do_tag(sizeof(methodDataOopDesc));
  soc->do_tag(arrayOopDesc::base_offset_in_bytes(T_BYTE));
  soc->do_tag(sizeof(constantPoolOopDesc));
  soc->do_tag(sizeof(constantPoolCacheOopDesc));
  soc->do_tag(objArrayOopDesc::base_offset_in_bytes());
  soc->do_tag(typeArrayOopDesc::base_offset_in_bytes(T_BYTE));
  soc->do_tag(sizeof(Symbol));
  soc->do_tag(sizeof(klassOopDesc));
  soc->do_tag(sizeof(markOopDesc));
  soc->do_tag(sizeof(compiledICHolderOopDesc));

  // Dump the block offset table entries.
  GenCollectedHeap* gch = GenCollectedHeap::heap();
  CompactingPermGenGen* pg = (CompactingPermGenGen*)gch->perm_gen();
  pg->serialize_bts(soc);
  soc->do_tag(--tag);
  pg->ro_space()->serialize_block_offset_array_offsets(soc);
  soc->do_tag(--tag);
  pg->rw_space()->serialize_block_offset_array_offsets(soc);
  soc->do_tag(--tag);

  // Special case - this oop needed in oop->is_oop() assertions.
  soc->do_ptr((void**)&Universe::_klassKlassObj);
  soc->do_tag(--tag);

  // Dump/restore miscellaneous oops.
  Universe::oops_do(soc, true);
  soc->do_tag(--tag);
  CodeCache::oops_do(soc);
  soc->do_tag(--tag);

  // Dump/restore references to commonly used names and signatures.
  vmSymbols::serialize(soc);
  soc->do_tag(--tag);

  soc->do_tag(666);
}