Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/memory/GenerationFactory.java @ 11997:cd25d3be91c5
8012144: multiple SIGSEGVs fails on staxf
Summary: Forward port of 7u change to add additional fence() on RMO platforms, with a load_acquire on all platforms
Reviewed-by: dholmes, kvn
author | vladidan |
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date | Tue, 06 Aug 2013 20:01:40 -0400 |
parents | da91efe96a93 |
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0 | 1 /* |
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
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20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.memory; | |
26 | |
27 import java.util.*; | |
28 | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.runtime.*; | |
31 import sun.jvm.hotspot.types.*; | |
32 | |
33 /** Factory containing a VirtualConstructor suitable for instantiating | |
34 wrapper objects for all types of generations */ | |
35 | |
36 public class GenerationFactory { | |
37 private static VirtualConstructor ctor; | |
38 | |
39 static { | |
40 VM.registerVMInitializedObserver(new Observer() { | |
41 public void update(Observable o, Object data) { | |
42 initialize(VM.getVM().getTypeDataBase()); | |
43 } | |
44 }); | |
45 } | |
46 | |
47 private static synchronized void initialize(TypeDataBase db) { | |
48 ctor = new VirtualConstructor(db); | |
49 | |
50 ctor.addMapping("DefNewGeneration", DefNewGeneration.class); | |
51 ctor.addMapping("ParNewGeneration", ParNewGeneration.class); | |
52 ctor.addMapping("TenuredGeneration", TenuredGeneration.class); | |
53 ctor.addMapping("ConcurrentMarkSweepGeneration", ConcurrentMarkSweepGeneration.class); | |
54 } | |
55 | |
56 public static Generation newObject(Address addr) { | |
57 try { | |
58 return (Generation) ctor.instantiateWrapperFor(addr); | |
59 } catch (WrongTypeException e) { | |
60 return new Generation(addr) { | |
61 public String name() { | |
62 return "unknown generation type"; | |
63 } | |
64 public void spaceIterate(SpaceClosure blk, boolean usedOnly) { | |
65 } | |
66 public void printOn(java.io.PrintStream tty) { | |
67 tty.println("unknown subtype of Generation @ " + getAddress() + " (" + | |
68 virtualSpace().low() + "," + virtualSpace().high() + ")"); | |
69 } | |
70 public long used() { | |
71 return 0; | |
72 } | |
73 public long free() { | |
74 return 0; | |
75 } | |
76 public long capacity() { | |
77 return 0; | |
78 } | |
79 public long contiguousAvailable() { | |
80 return 0; | |
81 } | |
82 | |
83 }; | |
84 } | |
85 } | |
86 } |