Sat, 01 Sep 2012 13:25:18 -0400
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
1 /*
2 * Copyright (c) 1999, 2012, 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.
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23 */
25 #ifndef SHARE_VM_CI_CICLASSLIST_HPP
26 #define SHARE_VM_CI_CICLASSLIST_HPP
28 class ciEnv;
29 class ciObjectFactory;
30 class ciConstantPoolCache;
32 class ciField;
33 class ciConstant;
34 class ciFlags;
35 class ciExceptionHandler;
36 class ciCallProfile;
37 class ciSignature;
39 class ciBytecodeStream;
40 class ciSignatureStream;
41 class ciExceptionHandlerStream;
43 class ciTypeFlow;
45 class ciBaseObject;
46 class ciObject;
47 class ciNullObject;
48 class ciInstance;
49 class ciCallSite;
50 class ciMemberName;
51 class ciMethodHandle;
52 class ciArray;
53 class ciObjArray;
54 class ciTypeArray;
55 class ciSymbol;
56 class ciMetadata;
57 class ciMethod;
58 class ciMethodData;
59 class ciReceiverTypeData; // part of ciMethodData
60 class ciType;
61 class ciReturnAddress;
62 class ciKlass;
63 class ciInstanceKlass;
64 class ciArrayKlass;
65 class ciObjArrayKlass;
66 class ciTypeArrayKlass;
68 // Simulate Java Language style package-private access with
69 // friend declarations.
70 // This is a great idea but gcc and other C++ compilers give an
71 // error for being friends with yourself, so this macro does not
72 // compile on some platforms.
74 // Everyone gives access to ciObjectFactory
75 #define CI_PACKAGE_ACCESS \
76 friend class ciObjectFactory; \
77 friend class VMStructs;
79 // These are the packages that have access to ciEnv
80 // Any more access must be given explicitly.
81 #define CI_PACKAGE_ACCESS_TO \
82 friend class ciObjectFactory; \
83 friend class VMStructs; \
84 friend class ciCallSite; \
85 friend class ciConstantPoolCache; \
86 friend class ciField; \
87 friend class ciConstant; \
88 friend class ciFlags; \
89 friend class ciExceptionHandler; \
90 friend class ciCallProfile; \
91 friend class ciSignature; \
92 friend class ciBytecodeStream; \
93 friend class ciSignatureStream; \
94 friend class ciExceptionHandlerStream; \
95 friend class ciObject; \
96 friend class ciNullObject; \
97 friend class ciInstance; \
98 friend class ciMemberName; \
99 friend class ciMethod; \
100 friend class ciMethodData; \
101 friend class ciMethodHandle; \
102 friend class ciReceiverTypeData; \
103 friend class ciSymbol; \
104 friend class ciArray; \
105 friend class ciObjArray; \
106 friend class ciMetadata; \
107 friend class ciTypeArray; \
108 friend class ciType; \
109 friend class ciReturnAddress; \
110 friend class ciKlass; \
111 friend class ciInstanceKlass; \
112 friend class ciArrayKlass; \
113 friend class ciObjArrayKlass; \
114 friend class ciTypeArrayKlass; \
116 #endif // SHARE_VM_CI_CICLASSLIST_HPP