Mercurial > hg > truffle
annotate test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 21822:b7e8193d0b53
Merge
author | asaha |
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date | Wed, 19 Nov 2014 15:02:01 -0800 |
parents | 4cb90023bf2b |
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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; |
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33 import java.net.URL; |
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35 import sun.hotspot.parser.DiagnosticCommand; |
5915 | 36 |
37 public class WhiteBox { | |
38 | |
39 @SuppressWarnings("serial") | |
40 public static class WhiteBoxPermission extends BasicPermission { | |
41 public WhiteBoxPermission(String s) { | |
42 super(s); | |
43 } | |
44 } | |
45 | |
46 private WhiteBox() {} | |
47 private static final WhiteBox instance = new WhiteBox(); | |
48 private static native void registerNatives(); | |
49 | |
50 /** | |
51 * Returns the singleton WhiteBox instance. | |
52 * | |
53 * The returned WhiteBox object should be carefully guarded | |
54 * by the caller, since it can be used to read and write data | |
55 * at arbitrary memory addresses. It must never be passed to | |
56 * untrusted code. | |
57 */ | |
58 public synchronized static WhiteBox getWhiteBox() { | |
59 SecurityManager sm = System.getSecurityManager(); | |
60 if (sm != null) { | |
61 sm.checkPermission(new WhiteBoxPermission("getInstance")); | |
62 } | |
63 return instance; | |
64 } | |
65 | |
66 static { | |
67 registerNatives(); | |
68 } | |
69 | |
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70 // Get the maximum heap size supporting COOPs |
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71 public native long getCompressedOopsMaxHeapSize(); |
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72 // Arguments |
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73 public native void printHeapSizes(); |
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74 |
5915 | 75 // Memory |
76 public native long getObjectAddress(Object o); | |
77 public native int getHeapOopSize(); | |
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78 public native boolean isObjectInOldGen(Object o); |
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79 public native long getObjectSize(Object o); |
5915 | 80 |
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81 // Runtime |
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82 // Make sure class name is in the correct format |
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83 public boolean isClassAlive(String name) { |
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84 return isClassAlive0(name.replace('.', '/')); |
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85 } |
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86 private native boolean isClassAlive0(String name); |
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87 |
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88 // Resource/Class Lookup Cache |
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89 public native boolean classKnownToNotExist(ClassLoader loader, String name); |
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90 public native URL[] getLookupCacheURLs(ClassLoader loader); |
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91 public native int[] getLookupCacheMatches(ClassLoader loader, String name); |
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92 |
5915 | 93 // G1 |
94 public native boolean g1InConcurrentMark(); | |
95 public native boolean g1IsHumongous(Object o); | |
96 public native long g1NumFreeRegions(); | |
97 public native int g1RegionSize(); | |
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98 public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); |
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99 |
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100 // NMT |
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101 public native long NMTMalloc(long size); |
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102 public native void NMTFree(long mem); |
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103 public native long NMTReserveMemory(long size); |
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104 public native void NMTCommitMemory(long addr, long size); |
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105 public native void NMTUncommitMemory(long addr, long size); |
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106 public native void NMTReleaseMemory(long addr, long size); |
20360 | 107 public native void NMTOverflowHashBucket(long num); |
108 public native long NMTMallocWithPseudoStack(long size, int index); | |
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109 public native boolean NMTIsDetailSupported(); |
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110 public native boolean NMTChangeTrackingLevel(); |
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111 |
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112 // Compiler |
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113 public native void deoptimizeAll(); |
12073 | 114 public boolean isMethodCompiled(Executable method) { |
115 return isMethodCompiled(method, false /*not osr*/); | |
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116 } |
12073 | 117 public native boolean isMethodCompiled(Executable method, boolean isOsr); |
118 public boolean isMethodCompilable(Executable method) { | |
119 return isMethodCompilable(method, -1 /*any*/); | |
120 } | |
121 public boolean isMethodCompilable(Executable method, int compLevel) { | |
122 return isMethodCompilable(method, compLevel, false /*not osr*/); | |
123 } | |
124 public native boolean isMethodCompilable(Executable method, int compLevel, boolean isOsr); | |
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125 public native boolean isMethodQueuedForCompilation(Executable method); |
12073 | 126 public int deoptimizeMethod(Executable method) { |
127 return deoptimizeMethod(method, false /*not osr*/); | |
128 } | |
129 public native int deoptimizeMethod(Executable method, boolean isOsr); | |
130 public void makeMethodNotCompilable(Executable method) { | |
131 makeMethodNotCompilable(method, -1 /*any*/); | |
132 } | |
133 public void makeMethodNotCompilable(Executable method, int compLevel) { | |
134 makeMethodNotCompilable(method, compLevel, false /*not osr*/); | |
135 } | |
136 public native void makeMethodNotCompilable(Executable method, int compLevel, boolean isOsr); | |
137 public int getMethodCompilationLevel(Executable method) { | |
138 return getMethodCompilationLevel(method, false /*not ost*/); | |
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139 } |
12073 | 140 public native int getMethodCompilationLevel(Executable method, boolean isOsr); |
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141 public native boolean testSetDontInlineMethod(Executable method, boolean value); |
12073 | 142 public int getCompileQueuesSize() { |
143 return getCompileQueueSize(-1 /*any*/); | |
144 } | |
145 public native int getCompileQueueSize(int compLevel); | |
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146 public native boolean testSetForceInlineMethod(Executable method, boolean value); |
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147 public boolean enqueueMethodForCompilation(Executable method, int compLevel) { |
12073 | 148 return enqueueMethodForCompilation(method, compLevel, -1 /*InvocationEntryBci*/); |
149 } | |
150 public native boolean enqueueMethodForCompilation(Executable method, int compLevel, int entry_bci); | |
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151 public native void clearMethodState(Executable method); |
12073 | 152 public native int getMethodEntryBci(Executable method); |
17817 | 153 public native Object[] getNMethod(Executable method, boolean isOsr); |
8850 | 154 |
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155 // Intered strings |
8850 | 156 public native boolean isInStringTable(String str); |
157 | |
10157 | 158 // Memory |
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159 public native void readReservedMemory(); |
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160 public native long allocateMetaspace(ClassLoader classLoader, long size); |
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161 public native void freeMetaspace(ClassLoader classLoader, long addr, long size); |
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162 public native long incMetaspaceCapacityUntilGC(long increment); |
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163 public native long metaspaceCapacityUntilGC(); |
10157 | 164 |
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165 // force Young GC |
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166 public native void youngGC(); |
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167 |
8850 | 168 // force Full GC |
169 public native void fullGC(); | |
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170 |
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171 // Tests on ReservedSpace/VirtualSpace classes |
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172 public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations); |
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173 public native void runMemoryUnitTests(); |
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174 public native void readFromNoaccessArea(); |
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175 public native long getThreadStackSize(); |
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176 public native long getThreadRemainingStackSize(); |
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177 |
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178 // CPU features |
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179 public native String getCPUFeatures(); |
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180 |
20451 | 181 // Native extensions |
182 public native long getHeapUsageForContext(int context); | |
183 public native long getHeapRegionCountForContext(int context); | |
184 public native int getContextForObject(Object obj); | |
185 public native void printRegionInfo(int context); | |
186 | |
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187 // VM flags |
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188 public native void setBooleanVMFlag(String name, boolean value); |
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189 public native void setIntxVMFlag(String name, long value); |
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190 public native void setUintxVMFlag(String name, long value); |
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191 public native void setUint64VMFlag(String name, long value); |
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192 public native void setStringVMFlag(String name, String value); |
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193 public native void setDoubleVMFlag(String name, double value); |
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194 public native Boolean getBooleanVMFlag(String name); |
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195 public native Long getIntxVMFlag(String name); |
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196 public native Long getUintxVMFlag(String name); |
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197 public native Long getUint64VMFlag(String name); |
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198 public native String getStringVMFlag(String name); |
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199 public native Double getDoubleVMFlag(String name); |
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200 private final List<Function<String,Object>> flagsGetters = Arrays.asList( |
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201 this::getBooleanVMFlag, this::getIntxVMFlag, this::getUintxVMFlag, |
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202 this::getUint64VMFlag, this::getStringVMFlag, this::getDoubleVMFlag); |
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203 |
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204 public Object getVMFlag(String name) { |
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205 return flagsGetters.stream() |
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206 .map(f -> f.apply(name)) |
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207 .filter(x -> x != null) |
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208 .findAny() |
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209 .orElse(null); |
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210 } |
5915 | 211 } |