Mercurial > hg > truffle
annotate test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 21087:056f90577ed1
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 22 Apr 2015 15:36:53 +0200 |
parents | 887a7cedb892 |
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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 |
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93 // JVMTI |
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94 public native void addToBootstrapClassLoaderSearch(String segment); |
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95 public native void addToSystemClassLoaderSearch(String segment); |
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96 |
5915 | 97 // G1 |
98 public native boolean g1InConcurrentMark(); | |
99 public native boolean g1IsHumongous(Object o); | |
100 public native long g1NumFreeRegions(); | |
101 public native int g1RegionSize(); | |
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102 public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); |
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103 |
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104 // NMT |
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105 public native long NMTMalloc(long size); |
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106 public native void NMTFree(long mem); |
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107 public native long NMTReserveMemory(long size); |
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108 public native void NMTCommitMemory(long addr, long size); |
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109 public native void NMTUncommitMemory(long addr, long size); |
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110 public native void NMTReleaseMemory(long addr, long size); |
20360 | 111 public native long NMTMallocWithPseudoStack(long size, int index); |
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112 public native boolean NMTIsDetailSupported(); |
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113 public native boolean NMTChangeTrackingLevel(); |
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114 public native int NMTGetHashSize(); |
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115 |
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116 // Compiler |
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117 public native void deoptimizeAll(); |
12073 | 118 public boolean isMethodCompiled(Executable method) { |
119 return isMethodCompiled(method, false /*not osr*/); | |
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120 } |
12073 | 121 public native boolean isMethodCompiled(Executable method, boolean isOsr); |
122 public boolean isMethodCompilable(Executable method) { | |
123 return isMethodCompilable(method, -1 /*any*/); | |
124 } | |
125 public boolean isMethodCompilable(Executable method, int compLevel) { | |
126 return isMethodCompilable(method, compLevel, false /*not osr*/); | |
127 } | |
128 public native boolean isMethodCompilable(Executable method, int compLevel, boolean isOsr); | |
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129 public native boolean isMethodQueuedForCompilation(Executable method); |
12073 | 130 public int deoptimizeMethod(Executable method) { |
131 return deoptimizeMethod(method, false /*not osr*/); | |
132 } | |
133 public native int deoptimizeMethod(Executable method, boolean isOsr); | |
134 public void makeMethodNotCompilable(Executable method) { | |
135 makeMethodNotCompilable(method, -1 /*any*/); | |
136 } | |
137 public void makeMethodNotCompilable(Executable method, int compLevel) { | |
138 makeMethodNotCompilable(method, compLevel, false /*not osr*/); | |
139 } | |
140 public native void makeMethodNotCompilable(Executable method, int compLevel, boolean isOsr); | |
141 public int getMethodCompilationLevel(Executable method) { | |
142 return getMethodCompilationLevel(method, false /*not ost*/); | |
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143 } |
12073 | 144 public native int getMethodCompilationLevel(Executable method, boolean isOsr); |
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145 public native boolean testSetDontInlineMethod(Executable method, boolean value); |
12073 | 146 public int getCompileQueuesSize() { |
147 return getCompileQueueSize(-1 /*any*/); | |
148 } | |
149 public native int getCompileQueueSize(int compLevel); | |
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150 public native boolean testSetForceInlineMethod(Executable method, boolean value); |
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151 public boolean enqueueMethodForCompilation(Executable method, int compLevel) { |
12073 | 152 return enqueueMethodForCompilation(method, compLevel, -1 /*InvocationEntryBci*/); |
153 } | |
154 public native boolean enqueueMethodForCompilation(Executable method, int compLevel, int entry_bci); | |
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155 public native void clearMethodState(Executable method); |
12073 | 156 public native int getMethodEntryBci(Executable method); |
17817 | 157 public native Object[] getNMethod(Executable method, boolean isOsr); |
8850 | 158 |
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159 // Intered strings |
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161 | |
10157 | 162 // Memory |
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163 public native void readReservedMemory(); |
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164 public native long allocateMetaspace(ClassLoader classLoader, long size); |
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165 public native void freeMetaspace(ClassLoader classLoader, long addr, long size); |
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166 public native long incMetaspaceCapacityUntilGC(long increment); |
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167 public native long metaspaceCapacityUntilGC(); |
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169 // force Young GC |
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170 public native void youngGC(); |
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171 |
8850 | 172 // force Full GC |
173 public native void fullGC(); | |
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174 |
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175 // Tests on ReservedSpace/VirtualSpace classes |
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176 public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations); |
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177 public native void runMemoryUnitTests(); |
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178 public native void readFromNoaccessArea(); |
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179 public native long getThreadStackSize(); |
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180 public native long getThreadRemainingStackSize(); |
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181 |
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182 // CPU features |
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183 public native String getCPUFeatures(); |
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184 |
20451 | 185 // Native extensions |
186 public native long getHeapUsageForContext(int context); | |
187 public native long getHeapRegionCountForContext(int context); | |
188 public native int getContextForObject(Object obj); | |
189 public native void printRegionInfo(int context); | |
190 | |
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191 // VM flags |
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192 public native void setBooleanVMFlag(String name, boolean value); |
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193 public native void setIntxVMFlag(String name, long value); |
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194 public native void setUintxVMFlag(String name, long value); |
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195 public native void setUint64VMFlag(String name, long value); |
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196 public native void setStringVMFlag(String name, String value); |
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197 public native void setDoubleVMFlag(String name, double value); |
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198 public native Boolean getBooleanVMFlag(String name); |
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199 public native Long getIntxVMFlag(String name); |
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200 public native Long getUintxVMFlag(String name); |
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201 public native Long getUint64VMFlag(String name); |
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202 public native String getStringVMFlag(String name); |
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203 public native Double getDoubleVMFlag(String name); |
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204 private final List<Function<String,Object>> flagsGetters = Arrays.asList( |
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205 this::getBooleanVMFlag, this::getIntxVMFlag, this::getUintxVMFlag, |
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206 this::getUint64VMFlag, this::getStringVMFlag, this::getDoubleVMFlag); |
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207 |
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208 public Object getVMFlag(String name) { |
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209 return flagsGetters.stream() |
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210 .map(f -> f.apply(name)) |
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211 .filter(x -> x != null) |
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212 .findAny() |
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213 .orElse(null); |
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214 } |
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215 public native int getOffsetForName0(String name); |
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216 public int getOffsetForName(String name) throws Exception { |
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217 int offset = getOffsetForName0(name); |
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218 if (offset == -1) { |
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219 throw new RuntimeException(name + " not found"); |
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220 } |
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221 return offset; |
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222 } |
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223 |
5915 | 224 } |