view src/share/vm/ci/ciClassList.hpp @ 20543:e7d0505c8a30

8059758: Footprint regressions with JDK-8038423 Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything. Reviewed-by: jwilhelm, brutisso
author tschatzl
date Fri, 10 Oct 2014 15:51:58 +0200
parents b8413a9cbb84
children 4ca6dc0799b6
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/*
 * Copyright (c) 1999, 2013, 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.
 *
 */

#ifndef SHARE_VM_CI_CICLASSLIST_HPP
#define SHARE_VM_CI_CICLASSLIST_HPP

class ciEnv;
class ciObjectFactory;
class ciConstantPoolCache;

class ciField;
class ciConstant;
class ciFlags;
class ciExceptionHandler;
class ciCallProfile;
class ciSignature;

class ciBytecodeStream;
class ciSignatureStream;
class ciExceptionHandlerStream;

class ciTypeFlow;

class ciBaseObject;
class ciObject;
class   ciNullObject;
class   ciInstance;
class     ciCallSite;
class     ciMemberName;
class     ciMethodHandle;
class     ciMethodType;
class     ciArray;
class       ciObjArray;
class       ciTypeArray;
class   ciSymbol;
class   ciMetadata;
class   ciMethod;
class   ciMethodData;
class     ciReceiverTypeData;  // part of ciMethodData
class   ciType;
class    ciReturnAddress;
class    ciKlass;
class     ciInstanceKlass;
class     ciArrayKlass;
class       ciObjArrayKlass;
class       ciTypeArrayKlass;

// Simulate Java Language style package-private access with
// friend declarations.
// This is a great idea but gcc and other C++ compilers give an
// error for being friends with yourself, so this macro does not
// compile on some platforms.

// Everyone gives access to ciObjectFactory
#define CI_PACKAGE_ACCESS \
friend class ciObjectFactory; \
friend class VMStructs;

// These are the packages that have access to ciEnv
// Any more access must be given explicitly.
#define CI_PACKAGE_ACCESS_TO           \
friend class ciObjectFactory;          \
friend class VMStructs;                \
friend class ciCallSite;               \
friend class ciConstantPoolCache;      \
friend class ciField;                  \
friend class ciConstant;               \
friend class ciFlags;                  \
friend class ciExceptionHandler;       \
friend class ciCallProfile;            \
friend class ciSignature;              \
friend class ciBytecodeStream;         \
friend class ciSignatureStream;        \
friend class ciExceptionHandlerStream; \
friend class ciObject;                 \
friend class ciNullObject;             \
friend class ciInstance;               \
friend class ciMemberName;             \
friend class ciMethod;                 \
friend class ciMethodData;             \
friend class ciMethodHandle;           \
friend class ciMethodType;             \
friend class ciReceiverTypeData;       \
friend class ciTypeEntries;            \
friend class ciSpeculativeTrapData;    \
friend class ciSymbol;                 \
friend class ciArray;                  \
friend class ciObjArray;               \
friend class ciMetadata;               \
friend class ciReplay;                 \
friend class ciTypeArray;              \
friend class ciType;                   \
friend class ciReturnAddress;          \
friend class ciKlass;                  \
friend class ciInstanceKlass;          \
friend class ciArrayKlass;             \
friend class ciObjArrayKlass;          \
friend class ciTypeArrayKlass;         \

#endif // SHARE_VM_CI_CICLASSLIST_HPP