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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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14
hotspot/src/share/vm/services/memoryService.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2012, 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
@ -40,15 +40,11 @@ class Generation;
class DefNewGeneration;
class PSYoungGen;
class PSOldGen;
class PSPermGen;
class CodeHeap;
class ContiguousSpace;
class CompactibleFreeListSpace;
class PermanentGenerationSpec;
class GenCollectedHeap;
class ParallelScavengeHeap;
class CompactingPermGenGen;
class CMSPermGenGen;
class G1CollectedHeap;
// VM Monitoring and Management Support
@ -85,26 +81,18 @@ private:
add_generation_memory_pool(gen, major_mgr, NULL);
}
static void add_compact_perm_gen_memory_pool(CompactingPermGenGen* perm_gen,
MemoryManager* mgr);
static void add_cms_perm_gen_memory_pool(CMSPermGenGen* perm_gen,
MemoryManager* mgr);
static void add_psYoung_memory_pool(PSYoungGen* gen,
MemoryManager* major_mgr,
MemoryManager* minor_mgr);
static void add_psOld_memory_pool(PSOldGen* gen,
MemoryManager* mgr);
static void add_psPerm_memory_pool(PSPermGen* perm,
MemoryManager* mgr);
static void add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
MemoryManager* major_mgr,
MemoryManager* minor_mgr);
static void add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
MemoryManager* mgr);
static void add_g1PermGen_memory_pool(G1CollectedHeap* g1h,
MemoryManager* mgr);
static MemoryPool* add_space(ContiguousSpace* space,
const char* name,