Mercurial > hg > graal-jvmci-8
annotate test/testlibrary/whitebox/sun/hotspot/WhiteBox.java @ 24234:ea6f94ab283b default tip
Added tag jvmci-0.36 for changeset 8128b98d4736
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Mon, 18 Sep 2017 18:49:45 +0200 |
parents | 50e62b688ddc |
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rev | line source |
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5915 | 1 /* |
23893 | 2 * Copyright (c) 2012, 2016, 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.management.MemoryUsage; |
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28 import java.lang.reflect.Executable; |
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29 import java.util.Arrays; |
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30 import java.util.List; |
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31 import java.util.function.Function; |
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32 import java.util.stream.Stream; |
5915 | 33 import java.security.BasicPermission; |
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34 import java.net.URL; |
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36 import sun.hotspot.parser.DiagnosticCommand; |
5915 | 37 |
38 public class WhiteBox { | |
39 | |
40 @SuppressWarnings("serial") | |
41 public static class WhiteBoxPermission extends BasicPermission { | |
42 public WhiteBoxPermission(String s) { | |
43 super(s); | |
44 } | |
45 } | |
46 | |
47 private WhiteBox() {} | |
48 private static final WhiteBox instance = new WhiteBox(); | |
49 private static native void registerNatives(); | |
50 | |
51 /** | |
52 * Returns the singleton WhiteBox instance. | |
53 * | |
54 * The returned WhiteBox object should be carefully guarded | |
55 * by the caller, since it can be used to read and write data | |
56 * at arbitrary memory addresses. It must never be passed to | |
57 * untrusted code. | |
58 */ | |
59 public synchronized static WhiteBox getWhiteBox() { | |
60 SecurityManager sm = System.getSecurityManager(); | |
61 if (sm != null) { | |
62 sm.checkPermission(new WhiteBoxPermission("getInstance")); | |
63 } | |
64 return instance; | |
65 } | |
66 | |
67 static { | |
68 registerNatives(); | |
69 } | |
70 | |
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71 // Get the maximum heap size supporting COOPs |
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72 public native long getCompressedOopsMaxHeapSize(); |
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73 // Arguments |
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74 public native void printHeapSizes(); |
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75 |
5915 | 76 // Memory |
77 public native long getObjectAddress(Object o); | |
78 public native int getHeapOopSize(); | |
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79 public native int getVMPageSize(); |
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80 public native long getVMLargePageSize(); |
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81 |
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82 public native boolean isObjectInOldGen(Object o); |
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83 public native long getObjectSize(Object o); |
5915 | 84 |
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85 // Runtime |
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86 // Make sure class name is in the correct format |
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87 public boolean isClassAlive(String name) { |
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88 return isClassAlive0(name.replace('.', '/')); |
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89 } |
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90 private native boolean isClassAlive0(String name); |
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91 public native boolean isMonitorInflated(Object obj); |
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92 public native void forceSafepoint(); |
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93 |
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94 // Resource/Class Lookup Cache |
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95 public native boolean classKnownToNotExist(ClassLoader loader, String name); |
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96 public native URL[] getLookupCacheURLs(ClassLoader loader); |
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97 public native int[] getLookupCacheMatches(ClassLoader loader, String name); |
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98 |
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99 // JVMTI |
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100 public native void addToBootstrapClassLoaderSearch(String segment); |
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101 public native void addToSystemClassLoaderSearch(String segment); |
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102 |
5915 | 103 // G1 |
104 public native boolean g1InConcurrentMark(); | |
105 public native boolean g1IsHumongous(Object o); | |
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106 public native long g1NumMaxRegions(); |
5915 | 107 public native long g1NumFreeRegions(); |
108 public native int g1RegionSize(); | |
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109 public native MemoryUsage g1AuxiliaryMemoryUsage(); |
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110 public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args); |
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111 |
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112 // NMT |
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113 public native long NMTMalloc(long size); |
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114 public native void NMTFree(long mem); |
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115 public native long NMTReserveMemory(long size); |
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116 public native void NMTCommitMemory(long addr, long size); |
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117 public native void NMTUncommitMemory(long addr, long size); |
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118 public native void NMTReleaseMemory(long addr, long size); |
20360 | 119 public native long NMTMallocWithPseudoStack(long size, int index); |
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120 public native boolean NMTIsDetailSupported(); |
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121 public native boolean NMTChangeTrackingLevel(); |
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122 public native int NMTGetHashSize(); |
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123 |
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124 // Compiler |
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125 public native void deoptimizeAll(); |
12073 | 126 public boolean isMethodCompiled(Executable method) { |
127 return isMethodCompiled(method, false /*not osr*/); | |
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128 } |
12073 | 129 public native boolean isMethodCompiled(Executable method, boolean isOsr); |
130 public boolean isMethodCompilable(Executable method) { | |
131 return isMethodCompilable(method, -1 /*any*/); | |
132 } | |
133 public boolean isMethodCompilable(Executable method, int compLevel) { | |
134 return isMethodCompilable(method, compLevel, false /*not osr*/); | |
135 } | |
136 public native boolean isMethodCompilable(Executable method, int compLevel, boolean isOsr); | |
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137 public native boolean isMethodQueuedForCompilation(Executable method); |
12073 | 138 public int deoptimizeMethod(Executable method) { |
139 return deoptimizeMethod(method, false /*not osr*/); | |
140 } | |
141 public native int deoptimizeMethod(Executable method, boolean isOsr); | |
142 public void makeMethodNotCompilable(Executable method) { | |
143 makeMethodNotCompilable(method, -1 /*any*/); | |
144 } | |
145 public void makeMethodNotCompilable(Executable method, int compLevel) { | |
146 makeMethodNotCompilable(method, compLevel, false /*not osr*/); | |
147 } | |
148 public native void makeMethodNotCompilable(Executable method, int compLevel, boolean isOsr); | |
149 public int getMethodCompilationLevel(Executable method) { | |
150 return getMethodCompilationLevel(method, false /*not ost*/); | |
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151 } |
12073 | 152 public native int getMethodCompilationLevel(Executable method, boolean isOsr); |
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153 public native boolean testSetDontInlineMethod(Executable method, boolean value); |
12073 | 154 public int getCompileQueuesSize() { |
155 return getCompileQueueSize(-1 /*any*/); | |
156 } | |
157 public native int getCompileQueueSize(int compLevel); | |
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158 public native boolean testSetForceInlineMethod(Executable method, boolean value); |
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159 public boolean enqueueMethodForCompilation(Executable method, int compLevel) { |
12073 | 160 return enqueueMethodForCompilation(method, compLevel, -1 /*InvocationEntryBci*/); |
161 } | |
162 public native boolean enqueueMethodForCompilation(Executable method, int compLevel, int entry_bci); | |
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163 public native void clearMethodState(Executable method); |
12073 | 164 public native int getMethodEntryBci(Executable method); |
17817 | 165 public native Object[] getNMethod(Executable method, boolean isOsr); |
8850 | 166 |
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167 // Intered strings |
8850 | 168 public native boolean isInStringTable(String str); |
169 | |
10157 | 170 // Memory |
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171 public native void readReservedMemory(); |
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172 public native long allocateMetaspace(ClassLoader classLoader, long size); |
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173 public native void freeMetaspace(ClassLoader classLoader, long addr, long size); |
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174 public native long incMetaspaceCapacityUntilGC(long increment); |
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175 public native long metaspaceCapacityUntilGC(); |
10157 | 176 |
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177 // Force Young GC |
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178 public native void youngGC(); |
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179 |
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180 // Force Full GC |
8850 | 181 public native void fullGC(); |
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182 |
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183 // Method tries to start concurrent mark cycle. |
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184 // It returns false if CM Thread is always in concurrent cycle. |
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185 public native boolean g1StartConcMarkCycle(); |
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186 |
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187 // Tests on ReservedSpace/VirtualSpace classes |
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188 public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations); |
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189 public native void runMemoryUnitTests(); |
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190 public native void readFromNoaccessArea(); |
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191 public native long getThreadStackSize(); |
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192 public native long getThreadRemainingStackSize(); |
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193 |
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194 // CPU features |
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195 public native String getCPUFeatures(); |
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196 |
20451 | 197 // Native extensions |
198 public native long getHeapUsageForContext(int context); | |
199 public native long getHeapRegionCountForContext(int context); | |
200 public native int getContextForObject(Object obj); | |
201 public native void printRegionInfo(int context); | |
202 | |
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203 // VM flags |
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204 public native void setBooleanVMFlag(String name, boolean value); |
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205 public native void setIntxVMFlag(String name, long value); |
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206 public native void setUintxVMFlag(String name, long value); |
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207 public native void setUint64VMFlag(String name, long value); |
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208 public native void setStringVMFlag(String name, String value); |
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209 public native void setDoubleVMFlag(String name, double value); |
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210 public native Boolean getBooleanVMFlag(String name); |
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211 public native Long getIntxVMFlag(String name); |
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212 public native Long getUintxVMFlag(String name); |
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213 public native Long getUint64VMFlag(String name); |
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214 public native String getStringVMFlag(String name); |
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215 public native Double getDoubleVMFlag(String name); |
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216 private final List<Function<String,Object>> flagsGetters = Arrays.asList( |
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217 this::getBooleanVMFlag, this::getIntxVMFlag, this::getUintxVMFlag, |
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218 this::getUint64VMFlag, this::getStringVMFlag, this::getDoubleVMFlag); |
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219 |
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220 public Object getVMFlag(String name) { |
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221 return flagsGetters.stream() |
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222 .map(f -> f.apply(name)) |
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223 .filter(x -> x != null) |
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224 .findAny() |
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225 .orElse(null); |
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226 } |
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227 public native int getOffsetForName0(String name); |
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228 public int getOffsetForName(String name) throws Exception { |
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229 int offset = getOffsetForName0(name); |
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230 if (offset == -1) { |
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231 throw new RuntimeException(name + " not found"); |
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232 } |
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233 return offset; |
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234 } |
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235 |
23893 | 236 // Class Data Sharing |
237 public native boolean isSharedClass(Class<?> c); | |
5915 | 238 } |