Mercurial > hg > truffle
annotate test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 20540:b509b7ff561c
8049599: MetaspaceGC::_capacity_until_GC can overflow
Reviewed-by: jmasa, stefank
author | ehelin |
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date | Wed, 01 Oct 2014 16:09:01 +0200 |
parents | e2452c3ff7fb |
children | 417e3b8d04c5 |
rev | line source |
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5915 | 1 /* |
17817 | 2 * Copyright (c) 2012, 2014, 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; |
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28 import java.util.Arrays; |
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29 import java.util.List; |
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30 import java.util.function.Function; |
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31 import java.util.stream.Stream; |
5915 | 32 import java.security.BasicPermission; |
20451 | 33 |
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34 import sun.hotspot.parser.DiagnosticCommand; |
5915 | 35 |
36 public class WhiteBox { | |
37 | |
38 @SuppressWarnings("serial") | |
39 public static class WhiteBoxPermission extends BasicPermission { | |
40 public WhiteBoxPermission(String s) { | |
41 super(s); | |
42 } | |
43 } | |
44 | |
45 private WhiteBox() {} | |
46 private static final WhiteBox instance = new WhiteBox(); | |
47 private static native void registerNatives(); | |
48 | |
49 /** | |
50 * Returns the singleton WhiteBox instance. | |
51 * | |
52 * The returned WhiteBox object should be carefully guarded | |
53 * by the caller, since it can be used to read and write data | |
54 * at arbitrary memory addresses. It must never be passed to | |
55 * untrusted code. | |
56 */ | |
57 public synchronized static WhiteBox getWhiteBox() { | |
58 SecurityManager sm = System.getSecurityManager(); | |
59 if (sm != null) { | |
60 sm.checkPermission(new WhiteBoxPermission("getInstance")); | |
61 } | |
62 return instance; | |
63 } | |
64 | |
65 static { | |
66 registerNatives(); | |
67 } | |
68 | |
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69 // Get the maximum heap size supporting COOPs |
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70 public native long getCompressedOopsMaxHeapSize(); |
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71 // Arguments |
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72 public native void printHeapSizes(); |
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73 |
5915 | 74 // Memory |
75 public native long getObjectAddress(Object o); | |
76 public native int getHeapOopSize(); | |
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77 public native boolean isObjectInOldGen(Object o); |
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78 public native long getObjectSize(Object o); |
5915 | 79 |
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80 // Runtime |
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81 // Make sure class name is in the correct format |
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82 public boolean isClassAlive(String name) { |
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83 return isClassAlive0(name.replace('.', '/')); |
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84 } |
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85 private native boolean isClassAlive0(String name); |
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86 |
5915 | 87 // G1 |
88 public native boolean g1InConcurrentMark(); | |
89 public native boolean g1IsHumongous(Object o); | |
90 public native long g1NumFreeRegions(); | |
91 public native int g1RegionSize(); | |
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92 public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); |
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93 |
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94 // NMT |
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95 public native long NMTMalloc(long size); |
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96 public native void NMTFree(long mem); |
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97 public native long NMTReserveMemory(long size); |
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98 public native void NMTCommitMemory(long addr, long size); |
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99 public native void NMTUncommitMemory(long addr, long size); |
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100 public native void NMTReleaseMemory(long addr, long size); |
20360 | 101 public native void NMTOverflowHashBucket(long num); |
102 public native long NMTMallocWithPseudoStack(long size, int index); | |
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103 public native boolean NMTIsDetailSupported(); |
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104 |
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105 // Compiler |
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106 public native void deoptimizeAll(); |
12073 | 107 public boolean isMethodCompiled(Executable method) { |
108 return isMethodCompiled(method, false /*not osr*/); | |
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109 } |
12073 | 110 public native boolean isMethodCompiled(Executable method, boolean isOsr); |
111 public boolean isMethodCompilable(Executable method) { | |
112 return isMethodCompilable(method, -1 /*any*/); | |
113 } | |
114 public boolean isMethodCompilable(Executable method, int compLevel) { | |
115 return isMethodCompilable(method, compLevel, false /*not osr*/); | |
116 } | |
117 public native boolean isMethodCompilable(Executable method, int compLevel, boolean isOsr); | |
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118 public native boolean isMethodQueuedForCompilation(Executable method); |
12073 | 119 public int deoptimizeMethod(Executable method) { |
120 return deoptimizeMethod(method, false /*not osr*/); | |
121 } | |
122 public native int deoptimizeMethod(Executable method, boolean isOsr); | |
123 public void makeMethodNotCompilable(Executable method) { | |
124 makeMethodNotCompilable(method, -1 /*any*/); | |
125 } | |
126 public void makeMethodNotCompilable(Executable method, int compLevel) { | |
127 makeMethodNotCompilable(method, compLevel, false /*not osr*/); | |
128 } | |
129 public native void makeMethodNotCompilable(Executable method, int compLevel, boolean isOsr); | |
130 public int getMethodCompilationLevel(Executable method) { | |
131 return getMethodCompilationLevel(method, false /*not ost*/); | |
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132 } |
12073 | 133 public native int getMethodCompilationLevel(Executable method, boolean isOsr); |
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134 public native boolean testSetDontInlineMethod(Executable method, boolean value); |
12073 | 135 public int getCompileQueuesSize() { |
136 return getCompileQueueSize(-1 /*any*/); | |
137 } | |
138 public native int getCompileQueueSize(int compLevel); | |
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139 public native boolean testSetForceInlineMethod(Executable method, boolean value); |
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140 public boolean enqueueMethodForCompilation(Executable method, int compLevel) { |
12073 | 141 return enqueueMethodForCompilation(method, compLevel, -1 /*InvocationEntryBci*/); |
142 } | |
143 public native boolean enqueueMethodForCompilation(Executable method, int compLevel, int entry_bci); | |
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144 public native void clearMethodState(Executable method); |
12073 | 145 public native int getMethodEntryBci(Executable method); |
17817 | 146 public native Object[] getNMethod(Executable method, boolean isOsr); |
8850 | 147 |
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148 // Intered strings |
8850 | 149 public native boolean isInStringTable(String str); |
150 | |
10157 | 151 // Memory |
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152 public native void readReservedMemory(); |
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153 public native long allocateMetaspace(ClassLoader classLoader, long size); |
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154 public native void freeMetaspace(ClassLoader classLoader, long addr, long size); |
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155 public native long incMetaspaceCapacityUntilGC(long increment); |
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156 public native long metaspaceCapacityUntilGC(); |
10157 | 157 |
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158 // force Young GC |
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159 public native void youngGC(); |
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160 |
8850 | 161 // force Full GC |
162 public native void fullGC(); | |
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163 |
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164 // Tests on ReservedSpace/VirtualSpace classes |
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165 public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations); |
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166 public native void runMemoryUnitTests(); |
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167 public native void readFromNoaccessArea(); |
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168 public native long getThreadStackSize(); |
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169 public native long getThreadRemainingStackSize(); |
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170 |
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171 // CPU features |
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172 public native String getCPUFeatures(); |
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173 |
20451 | 174 // Native extensions |
175 public native long getHeapUsageForContext(int context); | |
176 public native long getHeapRegionCountForContext(int context); | |
177 public native int getContextForObject(Object obj); | |
178 public native void printRegionInfo(int context); | |
179 | |
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180 // VM flags |
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181 public native void setBooleanVMFlag(String name, boolean value); |
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182 public native void setIntxVMFlag(String name, long value); |
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183 public native void setUintxVMFlag(String name, long value); |
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184 public native void setUint64VMFlag(String name, long value); |
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185 public native void setStringVMFlag(String name, String value); |
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186 public native void setDoubleVMFlag(String name, double value); |
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187 public native Boolean getBooleanVMFlag(String name); |
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188 public native Long getIntxVMFlag(String name); |
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189 public native Long getUintxVMFlag(String name); |
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190 public native Long getUint64VMFlag(String name); |
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191 public native String getStringVMFlag(String name); |
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192 public native Double getDoubleVMFlag(String name); |
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193 private final List<Function<String,Object>> flagsGetters = Arrays.asList( |
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194 this::getBooleanVMFlag, this::getIntxVMFlag, this::getUintxVMFlag, |
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195 this::getUint64VMFlag, this::getStringVMFlag, this::getDoubleVMFlag); |
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196 |
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197 public Object getVMFlag(String name) { |
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198 return flagsGetters.stream() |
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199 .map(f -> f.apply(name)) |
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200 .filter(x -> x != null) |
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201 .findAny() |
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202 .orElse(null); |
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203 } |
5915 | 204 } |