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comparison agent/src/share/classes/sun/jvm/hotspot/oops/Array.java @ 6725:da91efe96a93

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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>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents c18cbe5936b8
children 8e47bac5643a
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
57 57
58 private static long headerSizeInBytes() { 58 private static long headerSizeInBytes() {
59 if (headerSize != 0) { 59 if (headerSize != 0) {
60 return headerSize; 60 return headerSize;
61 } 61 }
62 if (VM.getVM().isCompressedOopsEnabled()) { 62 if (VM.getVM().isCompressedHeadersEnabled()) {
63 headerSize = typeSize; 63 headerSize = typeSize;
64 } else { 64 } else {
65 headerSize = VM.getVM().alignUp(typeSize + VM.getVM().getIntSize(), 65 headerSize = VM.getVM().alignUp(typeSize + VM.getVM().getIntSize(),
66 VM.getVM().getHeapWordSize()); 66 VM.getVM().getHeapWordSize());
67 } 67 }
78 78
79 private long lengthOffsetInBytes() { 79 private long lengthOffsetInBytes() {
80 if (lengthOffsetInBytes != 0) { 80 if (lengthOffsetInBytes != 0) {
81 return lengthOffsetInBytes; 81 return lengthOffsetInBytes;
82 } 82 }
83 if (VM.getVM().isCompressedOopsEnabled()) { 83 if (VM.getVM().isCompressedHeadersEnabled()) {
84 lengthOffsetInBytes = typeSize - VM.getVM().getIntSize(); 84 lengthOffsetInBytes = typeSize - VM.getVM().getIntSize();
85 } else { 85 } else {
86 lengthOffsetInBytes = typeSize; 86 lengthOffsetInBytes = typeSize;
87 } 87 }
88 return lengthOffsetInBytes; 88 return lengthOffsetInBytes;