Mercurial > hg > truffle
annotate test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 12233:40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes
| author | tschatzl |
|---|---|
| date | Wed, 11 Sep 2013 16:25:02 +0200 |
| parents | 5fd8e2fbafd4 |
| children | 9d8b29a0548c |
| rev | line source |
|---|---|
| 5915 | 1 /* |
| 10092 | 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.Executable; |
| 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 | |
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64 // Get the maximum heap size supporting COOPs |
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65 public native long getCompressedOopsMaxHeapSize(); |
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66 // Arguments |
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67 public native void printHeapSizes(); |
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68 |
| 5915 | 69 // Memory |
| 70 public native long getObjectAddress(Object o); | |
| 71 public native int getHeapOopSize(); | |
| 72 | |
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73 // Runtime |
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74 // Make sure class name is in the correct format |
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75 public boolean isClassAlive(String name) { |
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76 return isClassAlive0(name.replace('.', '/')); |
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77 } |
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78 private native boolean isClassAlive0(String name); |
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79 |
| 5915 | 80 // G1 |
| 81 public native boolean g1InConcurrentMark(); | |
| 82 public native boolean g1IsHumongous(Object o); | |
| 83 public native long g1NumFreeRegions(); | |
| 84 public native int g1RegionSize(); | |
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85 public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); |
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86 |
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87 // NMT |
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88 public native long NMTMalloc(long size); |
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89 public native void NMTFree(long mem); |
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90 public native long NMTReserveMemory(long size); |
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91 public native void NMTCommitMemory(long addr, long size); |
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92 public native void NMTUncommitMemory(long addr, long size); |
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93 public native void NMTReleaseMemory(long addr, long size); |
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94 public native boolean NMTWaitForDataMerge(); |
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95 public native boolean NMTIsDetailSupported(); |
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96 |
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97 // Compiler |
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98 public native void deoptimizeAll(); |
| 12073 | 99 public boolean isMethodCompiled(Executable method) { |
| 100 return isMethodCompiled(method, false /*not osr*/); | |
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101 } |
| 12073 | 102 public native boolean isMethodCompiled(Executable method, boolean isOsr); |
| 103 public boolean isMethodCompilable(Executable method) { | |
| 104 return isMethodCompilable(method, -1 /*any*/); | |
| 105 } | |
| 106 public boolean isMethodCompilable(Executable method, int compLevel) { | |
| 107 return isMethodCompilable(method, compLevel, false /*not osr*/); | |
| 108 } | |
| 109 public native boolean isMethodCompilable(Executable method, int compLevel, boolean isOsr); | |
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110 public native boolean isMethodQueuedForCompilation(Executable method); |
| 12073 | 111 public int deoptimizeMethod(Executable method) { |
| 112 return deoptimizeMethod(method, false /*not osr*/); | |
| 113 } | |
| 114 public native int deoptimizeMethod(Executable method, boolean isOsr); | |
| 115 public void makeMethodNotCompilable(Executable method) { | |
| 116 makeMethodNotCompilable(method, -1 /*any*/); | |
| 117 } | |
| 118 public void makeMethodNotCompilable(Executable method, int compLevel) { | |
| 119 makeMethodNotCompilable(method, compLevel, false /*not osr*/); | |
| 120 } | |
| 121 public native void makeMethodNotCompilable(Executable method, int compLevel, boolean isOsr); | |
| 122 public int getMethodCompilationLevel(Executable method) { | |
| 123 return getMethodCompilationLevel(method, false /*not ost*/); | |
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124 } |
| 12073 | 125 public native int getMethodCompilationLevel(Executable method, boolean isOsr); |
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126 public native boolean testSetDontInlineMethod(Executable method, boolean value); |
| 12073 | 127 public int getCompileQueuesSize() { |
| 128 return getCompileQueueSize(-1 /*any*/); | |
| 129 } | |
| 130 public native int getCompileQueueSize(int compLevel); | |
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131 public native boolean testSetForceInlineMethod(Executable method, boolean value); |
| 12073 | 132 public boolean enqueueMethodForCompilation(Executable method, int compLevel) { |
| 133 return enqueueMethodForCompilation(method, compLevel, -1 /*InvocationEntryBci*/); | |
| 134 } | |
| 135 public native boolean enqueueMethodForCompilation(Executable method, int compLevel, int entry_bci); | |
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136 public native void clearMethodState(Executable method); |
| 12073 | 137 public native int getMethodEntryBci(Executable method); |
| 8850 | 138 |
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139 // Intered strings |
| 8850 | 140 public native boolean isInStringTable(String str); |
| 141 | |
| 10157 | 142 // Memory |
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143 public native void readReservedMemory(); |
| 10157 | 144 |
| 8850 | 145 // force Full GC |
| 146 public native void fullGC(); | |
| 5915 | 147 } |