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comparison src/share/vm/oops/instanceOop.hpp @ 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 f95d63e2154a
children 8e47bac5643a
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 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.
35 // aligned header size. 35 // aligned header size.
36 static int header_size() { return sizeof(instanceOopDesc)/HeapWordSize; } 36 static int header_size() { return sizeof(instanceOopDesc)/HeapWordSize; }
37 37
38 // If compressed, the offset of the fields of the instance may not be aligned. 38 // If compressed, the offset of the fields of the instance may not be aligned.
39 static int base_offset_in_bytes() { 39 static int base_offset_in_bytes() {
40 return UseCompressedOops ? 40 return UseCompressedKlassPointers ?
41 klass_gap_offset_in_bytes() : 41 klass_gap_offset_in_bytes() :
42 sizeof(instanceOopDesc); 42 sizeof(instanceOopDesc);
43 } 43 }
44 44
45 static bool contains_field_offset(int offset, int nonstatic_field_size) { 45 static bool contains_field_offset(int offset, int nonstatic_field_size) {