Mercurial > hg > truffle
annotate test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 10060:193d5163a94a
exclude projects from mx checkstyle if their Java compliance level is higher than the configured JDK
author | Doug Simon <doug.simon@oracle.com> |
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date | Sat, 15 Jun 2013 21:28:20 +0200 |
parents | 7a5aec879506 |
children | 86db4847f195 4b2eebe03f93 |
rev | line source |
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5915 | 1 /* |
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2 * Copyright (c) 2012, 2013 Oracle and/or its affiliates. All rights reserved. |
5915 | 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. | |
22 * | |
23 */ | |
24 | |
25 package sun.hotspot; | |
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26 |
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27 import java.lang.reflect.Method; |
5915 | 28 import java.security.BasicPermission; |
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29 import sun.hotspot.parser.DiagnosticCommand; |
5915 | 30 |
31 public class WhiteBox { | |
32 | |
33 @SuppressWarnings("serial") | |
34 public static class WhiteBoxPermission extends BasicPermission { | |
35 public WhiteBoxPermission(String s) { | |
36 super(s); | |
37 } | |
38 } | |
39 | |
40 private WhiteBox() {} | |
41 private static final WhiteBox instance = new WhiteBox(); | |
42 private static native void registerNatives(); | |
43 | |
44 /** | |
45 * Returns the singleton WhiteBox instance. | |
46 * | |
47 * The returned WhiteBox object should be carefully guarded | |
48 * by the caller, since it can be used to read and write data | |
49 * at arbitrary memory addresses. It must never be passed to | |
50 * untrusted code. | |
51 */ | |
52 public synchronized static WhiteBox getWhiteBox() { | |
53 SecurityManager sm = System.getSecurityManager(); | |
54 if (sm != null) { | |
55 sm.checkPermission(new WhiteBoxPermission("getInstance")); | |
56 } | |
57 return instance; | |
58 } | |
59 | |
60 static { | |
61 registerNatives(); | |
62 } | |
63 | |
64 // Memory | |
65 public native long getObjectAddress(Object o); | |
66 public native int getHeapOopSize(); | |
67 | |
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68 // Runtime |
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69 // Make sure class name is in the correct format |
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70 public boolean isClassAlive(String name) { |
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71 return isClassAlive0(name.replace('.', '/')); |
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72 } |
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73 private native boolean isClassAlive0(String name); |
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74 |
5915 | 75 // G1 |
76 public native boolean g1InConcurrentMark(); | |
77 public native boolean g1IsHumongous(Object o); | |
78 public native long g1NumFreeRegions(); | |
79 public native int g1RegionSize(); | |
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80 public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); |
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81 |
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82 // NMT |
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83 public native long NMTMalloc(long size); |
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84 public native void NMTFree(long mem); |
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85 public native long NMTReserveMemory(long size); |
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86 public native void NMTCommitMemory(long addr, long size); |
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87 public native void NMTUncommitMemory(long addr, long size); |
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88 public native void NMTReleaseMemory(long addr, long size); |
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89 public native boolean NMTWaitForDataMerge(); |
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90 |
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91 // Compiler |
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92 public native void deoptimizeAll(); |
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93 public native boolean isMethodCompiled(Method method); |
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94 public boolean isMethodCompilable(Method method) { |
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95 return isMethodCompilable(method, -1 /*any*/); |
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96 } |
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97 public native boolean isMethodCompilable(Method method, int compLevel); |
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98 public native boolean isMethodQueuedForCompilation(Method method); |
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99 public native int deoptimizeMethod(Method method); |
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100 public native void makeMethodNotCompilable(Method method); |
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101 public native int getMethodCompilationLevel(Method method); |
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102 public native boolean testSetDontInlineMethod(Method method, boolean value); |
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103 public native int getCompileQueuesSize(); |
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104 public native boolean testSetForceInlineMethod(Method method, boolean value); |
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105 public native boolean enqueueMethodForCompilation(Method method, int compLevel); |
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106 public native void clearMethodState(Method method); |
8850 | 107 |
108 //Intered strings | |
109 public native boolean isInStringTable(String str); | |
110 | |
111 // force Full GC | |
112 public native void fullGC(); | |
5915 | 113 } |