jdk8-mips64-public/hotspot: src/share/vm/memory/compactPermGen.hpp@fc9d8850ab8b

7150058: Allocate symbols from null boot loader to an arena for NMT
Summary: Move symbol allocation to an arena so NMT doesn't have to track them at startup.
Reviewed-by: never, kamg, zgu

     1 /*

     2  * Copyright (c) 2000, 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  */

    25 #ifndef SHARE_VM_MEMORY_COMPACTPERMGEN_HPP

    26 #define SHARE_VM_MEMORY_COMPACTPERMGEN_HPP

    28 #include "memory/generation.hpp"

    29 #include "memory/permGen.hpp"

    31 class ContigPermSpace;

    32 class CardTableModRefBS;

    33 class CompactingPermGenGen;

    34 class PermanentGenerationSpec;

    36 // A PermGen implemented with a contiguous space.

    37 class CompactingPermGen:  public PermGen {

    38   friend class VMStructs;

    39 protected:

    40   // The "generation" view.

    41   OneContigSpaceCardGeneration* _gen;

    43 public:

    44   CompactingPermGen(ReservedSpace rs, ReservedSpace shared_rs,

    45                     size_t initial_byte_size, GenRemSet* remset,

    46                     PermanentGenerationSpec* perm_spec);

    48   HeapWord* mem_allocate(size_t size);

    50   void compute_new_size();

    52   Generation* as_gen() const { return _gen; }

    54 };

    56 #endif // SHARE_VM_MEMORY_COMPACTPERMGEN_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/memory/compactPermGen.hpp@fc9d8850ab8b

src/share/vm/memory/compactPermGen.hpp