--- a/hotspot/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java Fri May 13 12:36:03 2016 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,264 +0,0 @@
-/*
- * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-package sun.hotspot;
-
-import java.lang.reflect.Executable;
-import java.util.Arrays;
-import java.util.List;
-import java.util.function.Function;
-import java.util.stream.Stream;
-import java.security.BasicPermission;
-
-import sun.hotspot.parser.DiagnosticCommand;
-
-public class WhiteBox {
-
- @SuppressWarnings("serial")
- public static class WhiteBoxPermission extends BasicPermission {
- public WhiteBoxPermission(String s) {
- super(s);
- }
- }
-
- private WhiteBox() {}
- private static final WhiteBox instance = new WhiteBox();
- private static native void registerNatives();
-
- /**
- * Returns the singleton WhiteBox instance.
- *
- * The returned WhiteBox object should be carefully guarded
- * by the caller, since it can be used to read and write data
- * at arbitrary memory addresses. It must never be passed to
- * untrusted code.
- */
- public synchronized static WhiteBox getWhiteBox() {
- SecurityManager sm = System.getSecurityManager();
- if (sm != null) {
- sm.checkPermission(new WhiteBoxPermission("getInstance"));
- }
- return instance;
- }
-
- static {
- registerNatives();
- }
-
- // Get the maximum heap size supporting COOPs
- public native long getCompressedOopsMaxHeapSize();
- // Arguments
- public native void printHeapSizes();
-
- // Memory
- public native long getObjectAddress(Object o);
- public native int getHeapOopSize();
- public native int getVMPageSize();
- public native boolean isObjectInOldGen(Object o);
- public native long getObjectSize(Object o);
-
- // Runtime
- // Make sure class name is in the correct format
- public boolean isClassAlive(String name) {
- return isClassAlive0(name.replace('.', '/'));
- }
- private native boolean isClassAlive0(String name);
-
- // JVMTI
- public native void addToBootstrapClassLoaderSearch(String segment);
- public native void addToSystemClassLoaderSearch(String segment);
-
- // G1
- public native boolean g1InConcurrentMark();
- public native boolean g1IsHumongous(Object o);
- public native long g1NumFreeRegions();
- public native int g1RegionSize();
- public native Object[] parseCommandLine(String commandline, char delim, DiagnosticCommand[] args);
-
- // NMT
- public native long NMTMalloc(long size);
- public native void NMTFree(long mem);
- public native long NMTReserveMemory(long size);
- public native void NMTCommitMemory(long addr, long size);
- public native void NMTUncommitMemory(long addr, long size);
- public native void NMTReleaseMemory(long addr, long size);
- public native long NMTMallocWithPseudoStack(long size, int index);
- public native boolean NMTIsDetailSupported();
- public native boolean NMTChangeTrackingLevel();
- public native int NMTGetHashSize();
-
- // Compiler
- public native void deoptimizeAll();
- public boolean isMethodCompiled(Executable method) {
- return isMethodCompiled(method, false /*not osr*/);
- }
- public native boolean isMethodCompiled(Executable method, boolean isOsr);
- public boolean isMethodCompilable(Executable method) {
- return isMethodCompilable(method, -1 /*any*/);
- }
- public boolean isMethodCompilable(Executable method, int compLevel) {
- return isMethodCompilable(method, compLevel, false /*not osr*/);
- }
- public native boolean isMethodCompilable(Executable method, int compLevel, boolean isOsr);
- public native boolean isMethodQueuedForCompilation(Executable method);
- public int deoptimizeMethod(Executable method) {
- return deoptimizeMethod(method, false /*not osr*/);
- }
- public native int deoptimizeMethod(Executable method, boolean isOsr);
- public void makeMethodNotCompilable(Executable method) {
- makeMethodNotCompilable(method, -1 /*any*/);
- }
- public void makeMethodNotCompilable(Executable method, int compLevel) {
- makeMethodNotCompilable(method, compLevel, false /*not osr*/);
- }
- public native void makeMethodNotCompilable(Executable method, int compLevel, boolean isOsr);
- public int getMethodCompilationLevel(Executable method) {
- return getMethodCompilationLevel(method, false /*not ost*/);
- }
- public native int getMethodCompilationLevel(Executable method, boolean isOsr);
- public native boolean testSetDontInlineMethod(Executable method, boolean value);
- public int getCompileQueuesSize() {
- return getCompileQueueSize(-1 /*any*/);
- }
- public native int getCompileQueueSize(int compLevel);
- public native boolean testSetForceInlineMethod(Executable method, boolean value);
- public boolean enqueueMethodForCompilation(Executable method, int compLevel) {
- return enqueueMethodForCompilation(method, compLevel, -1 /*InvocationEntryBci*/);
- }
- public native boolean enqueueMethodForCompilation(Executable method, int compLevel, int entry_bci);
- public native void clearMethodState(Executable method);
- public native void lockCompilation();
- public native void unlockCompilation();
- public native int getMethodEntryBci(Executable method);
- public native Object[] getNMethod(Executable method, boolean isOsr);
- public native long allocateCodeBlob(int size, int type);
- public long allocateCodeBlob(long size, int type) {
- int intSize = (int) size;
- if ((long) intSize != size || size < 0) {
- throw new IllegalArgumentException(
- "size argument has illegal value " + size);
- }
- return allocateCodeBlob( intSize, type);
- }
- public native void freeCodeBlob(long addr);
- public void forceNMethodSweep() {
- try {
- forceNMethodSweep0().join();
- } catch (InterruptedException e) {
- Thread.currentThread().interrupt();
- }
- }
- public native Thread forceNMethodSweep0();
- public native Object[] getCodeHeapEntries(int type);
- public native int getCompilationActivityMode();
- public native Object[] getCodeBlob(long addr);
-
- // Intered strings
- public native boolean isInStringTable(String str);
-
- // Memory
- public native void readReservedMemory();
- public native long allocateMetaspace(ClassLoader classLoader, long size);
- public native void freeMetaspace(ClassLoader classLoader, long addr, long size);
- public native long incMetaspaceCapacityUntilGC(long increment);
- public native long metaspaceCapacityUntilGC();
-
- // Force Young GC
- public native void youngGC();
-
- // Force Full GC
- public native void fullGC();
-
- // Method tries to start concurrent mark cycle.
- // It returns false if CM Thread is always in concurrent cycle.
- public native boolean g1StartConcMarkCycle();
-
- // Tests on ReservedSpace/VirtualSpace classes
- public native int stressVirtualSpaceResize(long reservedSpaceSize, long magnitude, long iterations);
- public native void runMemoryUnitTests();
- public native void readFromNoaccessArea();
- public native long getThreadStackSize();
- public native long getThreadRemainingStackSize();
-
- // CPU features
- public native String getCPUFeatures();
-
- // Native extensions
- public native long getHeapUsageForContext(int context);
- public native long getHeapRegionCountForContext(int context);
- public native int getContextForObject(Object obj);
- public native void printRegionInfo(int context);
-
- // VM flags
- public native boolean isConstantVMFlag(String name);
- public native boolean isLockedVMFlag(String name);
- public native void setBooleanVMFlag(String name, boolean value);
- public native void setIntxVMFlag(String name, long value);
- public native void setUintxVMFlag(String name, long value);
- public native void setUint64VMFlag(String name, long value);
- public native void setSizeTVMFlag(String name, long value);
- public native void setStringVMFlag(String name, String value);
- public native void setDoubleVMFlag(String name, double value);
- public native Boolean getBooleanVMFlag(String name);
- public native Long getIntxVMFlag(String name);
- public native Long getUintxVMFlag(String name);
- public native Long getUint64VMFlag(String name);
- public native Long getSizeTVMFlag(String name);
- public native String getStringVMFlag(String name);
- public native Double getDoubleVMFlag(String name);
- private final List<Function<String,Object>> flagsGetters = Arrays.asList(
- this::getBooleanVMFlag, this::getIntxVMFlag, this::getUintxVMFlag,
- this::getUint64VMFlag, this::getSizeTVMFlag, this::getStringVMFlag,
- this::getDoubleVMFlag);
-
- public Object getVMFlag(String name) {
- return flagsGetters.stream()
- .map(f -> f.apply(name))
- .filter(x -> x != null)
- .findAny()
- .orElse(null);
- }
-
- // Jigsaw
- public native Object DefineModule(String name, Object loader, Object[] packages);
- public native void AddModuleExports(Object from_module, String pkg, Object to_module);
- public native void AddReadsModule(Object from_module, Object to_module);
- public native boolean CanReadModule(Object asking_module, Object target_module);
- public native boolean IsExportedToModule(Object from_module, String pkg, Object to_module);
- public native Object GetModule(Class clazz);
- public native void AddModulePackage(Object module, String pkg);
-
- // Image File
- public native boolean readImageFile(String imagefile);
-
- public native int getOffsetForName0(String name);
- public int getOffsetForName(String name) throws Exception {
- int offset = getOffsetForName0(name);
- if (offset == -1) {
- throw new RuntimeException(name + " not found");
- }
- return offset;
- }
-
-}