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comparison agent/src/share/classes/sun/jvm/hotspot/utilities/PointerLocation.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 3e8fbc61cee8
children
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2010, 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.
45 45
46 Address addr; 46 Address addr;
47 47
48 CollectedHeap heap; 48 CollectedHeap heap;
49 Generation gen; 49 Generation gen;
50 Generation permGen;
51 50
52 // If UseTLAB was enabled and the pointer was found in a 51 // If UseTLAB was enabled and the pointer was found in a
53 // currently-active TLAB, these will be set 52 // currently-active TLAB, these will be set
54 boolean inTLAB; 53 boolean inTLAB;
55 JavaThread tlabThread; 54 JavaThread tlabThread;
79 public PointerLocation(Address addr) { 78 public PointerLocation(Address addr) {
80 this.addr = addr; 79 this.addr = addr;
81 } 80 }
82 81
83 public boolean isInHeap() { 82 public boolean isInHeap() {
84 return (heap != null || (gen != null) || (permGen != null)); 83 return (heap != null || (gen != null));
85 } 84 }
86 85
87 public boolean isInNewGen() { 86 public boolean isInNewGen() {
88 return ((gen != null) && (gen.level() == 0)); 87 return ((gen != null) && (gen.level() == 0));
89 } 88 }
90 89
91 public boolean isInOldGen() { 90 public boolean isInOldGen() {
92 return ((gen != null) && (gen.level() == 1)); 91 return ((gen != null) && (gen.level() == 1));
93 } 92 }
94 93
95 public boolean isInPermGen() {
96 return (permGen != null);
97 }
98
99 public boolean inOtherGen() { 94 public boolean inOtherGen() {
100 return (!isInNewGen() && !isInOldGen() && !isInPermGen()); 95 return (!isInNewGen() && !isInOldGen());
101 } 96 }
102 97
103 /** Only valid if isInHeap() */ 98 /** Only valid if isInHeap() */
104 public Generation getGeneration() { 99 public Generation getGeneration() {
105 if (gen != null) {
106 return gen; 100 return gen;
107 } else {
108 return permGen;
109 }
110 } 101 }
111 102
112 /** This may be true if isInNewGen is also true */ 103 /** This may be true if isInNewGen is also true */
113 public boolean isInTLAB() { 104 public boolean isInTLAB() {
114 return inTLAB; 105 return inTLAB;
214 } else { 205 } else {
215 if (isInNewGen()) { 206 if (isInNewGen()) {
216 tty.print("In new generation "); 207 tty.print("In new generation ");
217 } else if (isInOldGen()) { 208 } else if (isInOldGen()) {
218 tty.print("In old generation "); 209 tty.print("In old generation ");
219 } else if (isInPermGen()) {
220 tty.print("In perm generation ");
221 } else if (gen != null) { 210 } else if (gen != null) {
222 tty.print("In Generation " + getGeneration().level()); 211 tty.print("In Generation " + getGeneration().level());
223 } else { 212 } else {
224 tty.print("In unknown section of Java heap"); 213 tty.print("In unknown section of Java heap");
225 } 214 }