author | jjg |
Mon, 20 May 2019 10:57:57 -0700 | |
changeset 54950 | 46ae54c3026d |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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package sun.jvm.hotspot.debugger; |
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/** <P> DebuggerBase is a recommended base class for debugger |
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implementations. It can use a PageCache to cache data from the |
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target process. Note that this class would not be suitable if the |
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system were used to reflect upon itself; it would never be safe to |
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store the value in an OopHandle in anything but an OopHandle. |
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However, it provides a fair amount of code sharing to the current |
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dbx and win32 implementations. </P> |
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<P> NOTE that much of the code sharing is achieved by having this |
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class implement many of the methods in the Win32Debugger and |
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DbxDebugger interfaces. </P> */ |
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public abstract class DebuggerBase implements Debugger { |
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// May be set lazily, but must be set before calling any of the read |
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// routines below |
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protected MachineDescription machDesc; |
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protected DebuggerUtilities utils; |
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// Java primitive type sizes, set during bootstrapping. Do not call |
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// any of the Java read routines until these are set up. |
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protected long jbooleanSize; |
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protected long jbyteSize; |
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protected long jcharSize; |
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protected long jdoubleSize; |
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protected long jfloatSize; |
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protected long jintSize; |
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protected long jlongSize; |
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protected long jshortSize; |
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protected boolean javaPrimitiveTypesConfigured; |
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// heap data. |
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protected long oopSize; |
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protected long heapOopSize; |
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protected long narrowOopBase; // heap base for compressed oops. |
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protected int narrowOopShift; // shift to decode compressed oops. |
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// class metadata space |
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protected long klassPtrSize; |
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protected long narrowKlassBase; // heap base for compressed klass ptrs. |
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protected int narrowKlassShift; // shift to decode compressed klass ptrs. |
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// Should be initialized if desired by calling initCache() |
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private PageCache cache; |
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// State for faster accessors that don't allocate memory on each read |
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private boolean useFastAccessors; |
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private boolean bigEndian; |
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// Page-fetching functionality for LRU cache |
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class Fetcher implements PageFetcher { |
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public Page fetchPage(long pageBaseAddress, long numBytes) { |
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// This assumes that if any byte is unmapped, that the entire |
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// page is. The common case, however, is that the page is |
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// mapped, so we always fetch the entire thing all at once to |
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// avoid two round-trip communications per page fetch, even |
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// though fetching of unmapped pages will be slow. |
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ReadResult res = readBytesFromProcess(pageBaseAddress, numBytes); |
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if (res.getData() == null) { |
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return new Page(pageBaseAddress, numBytes); |
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} |
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return new Page(pageBaseAddress, res.getData()); |
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} |
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} |
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protected DebuggerBase() { |
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} |
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/** From the JVMDebugger interface. This is the only public method |
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of this class. */ |
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public void configureJavaPrimitiveTypeSizes(long jbooleanSize, |
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long jbyteSize, |
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long jcharSize, |
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long jdoubleSize, |
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long jfloatSize, |
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long jintSize, |
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long jlongSize, |
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long jshortSize) { |
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this.jbooleanSize = jbooleanSize; |
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this.jbyteSize = jbyteSize; |
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this.jcharSize = jcharSize; |
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this.jdoubleSize = jdoubleSize; |
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this.jfloatSize = jfloatSize; |
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this.jintSize = jintSize; |
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this.jlongSize = jlongSize; |
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this.jshortSize = jshortSize; |
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if (jbooleanSize < 1) { |
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throw new RuntimeException("jboolean size is too small"); |
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} |
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if (jbyteSize < 1) { |
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throw new RuntimeException("jbyte size is too small"); |
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} |
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if (jcharSize < 2) { |
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throw new RuntimeException("jchar size is too small"); |
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} |
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if (jdoubleSize < 8) { |
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throw new RuntimeException("jdouble size is too small"); |
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} |
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if (jfloatSize < 4) { |
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throw new RuntimeException("jfloat size is too small"); |
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} |
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if (jintSize < 4) { |
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throw new RuntimeException("jint size is too small"); |
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} |
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if (jlongSize < 8) { |
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throw new RuntimeException("jlong size is too small"); |
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} |
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if (jshortSize < 2) { |
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throw new RuntimeException("jshort size is too small"); |
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} |
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if (jintSize != jfloatSize) { |
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// If dataToJFloat were rewritten, this wouldn't be necessary |
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throw new RuntimeException("jint size and jfloat size must be equal"); |
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} |
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if (jlongSize != jdoubleSize) { |
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// If dataToJDouble were rewritten, this wouldn't be necessary |
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throw new RuntimeException("jlong size and jdouble size must be equal"); |
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} |
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useFastAccessors = |
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((cache != null) && |
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(jbooleanSize == 1) && |
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(jbyteSize == 1) && |
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(jcharSize == 2) && |
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(jdoubleSize == 8) && |
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(jfloatSize == 4) && |
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(jintSize == 4) && |
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(jlongSize == 8) && |
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(jshortSize == 2)); |
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javaPrimitiveTypesConfigured = true; |
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} |
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public void putHeapConst(long heapOopSize, long klassPtrSize, long narrowOopBase, int narrowOopShift, |
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long narrowKlassBase, int narrowKlassShift) { |
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this.heapOopSize = heapOopSize; |
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this.klassPtrSize = klassPtrSize; |
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this.narrowOopBase = narrowOopBase; |
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this.narrowOopShift = narrowOopShift; |
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this.narrowKlassBase = narrowKlassBase; |
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this.narrowKlassShift = narrowKlassShift; |
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} |
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/** May be called by subclasses if desired to initialize the page |
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cache but may not be overridden */ |
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protected final void initCache(long pageSize, long maxNumPages) { |
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cache = new PageCache(pageSize, maxNumPages, new Fetcher()); |
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if (machDesc != null) { |
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bigEndian = machDesc.isBigEndian(); |
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} |
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} |
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/** May be called by subclasses if needed (if the machine |
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description is not available at the time of cache |
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initialization, as on Solaris) but may not be overridden */ |
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protected final void setBigEndian(boolean bigEndian) { |
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this.bigEndian = bigEndian; |
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} |
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/** May be called by subclasses to clear out the cache but may not |
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be overridden. For convenience, this can be called even if the |
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cache has not been initialized. */ |
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protected final void clearCache() { |
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if (cache != null) { |
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cache.clear(); |
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} |
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} |
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/** May be called by subclasses to disable the cache (for example, |
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when the target process has been resumed) but may not be |
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overridden. For convenience, this can be called even if the |
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cache has not been initialized. */ |
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protected final void disableCache() { |
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if (cache != null) { |
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cache.disable(); |
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} |
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} |
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/** May be called by subclasses to re-enable the cache (for example, |
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when the target process has been suspended) but may not be |
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overridden. For convenience, this can be called even if the |
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cache has not been initialized. */ |
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protected final void enableCache() { |
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if (cache != null) { |
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cache.enable(); |
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} |
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} |
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/** May be called by subclasses directly but may not be overridden */ |
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protected final byte[] readBytes(long address, long numBytes) |
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throws UnmappedAddressException, DebuggerException { |
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if (cache != null) { |
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return cache.getData(address, numBytes); |
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} else { |
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ReadResult res = readBytesFromProcess(address, numBytes); |
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if (res.getData() != null) { |
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return res.getData(); |
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} |
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throw new UnmappedAddressException(res.getFailureAddress()); |
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} |
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} |
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/** May be called by subclasses directly but may not be overridden */ |
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protected final void writeBytes(long address, long numBytes, byte[] data) |
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throws UnmappedAddressException, DebuggerException { |
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if (cache != null) { |
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cache.clear(address, numBytes); |
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} |
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writeBytesToProcess(address, numBytes, data); |
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} |
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public boolean readJBoolean(long address) |
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throws UnmappedAddressException, UnalignedAddressException { |
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checkJavaConfigured(); |
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utils.checkAlignment(address, jbooleanSize); |
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if (useFastAccessors) { |
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return (cache.getByte(address) != 0); |
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} else { |
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byte[] data = readBytes(address, jbooleanSize); |
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return utils.dataToJBoolean(data, jbooleanSize); |
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} |
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} |
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public byte readJByte(long address) |
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throws UnmappedAddressException, UnalignedAddressException { |
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checkJavaConfigured(); |
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utils.checkAlignment(address, jbyteSize); |
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if (useFastAccessors) { |
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return cache.getByte(address); |
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} else { |
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byte[] data = readBytes(address, jbyteSize); |
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return utils.dataToJByte(data, jbyteSize); |
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} |
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} |
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// NOTE: assumes value does not span pages (may be bad assumption on |
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// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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public char readJChar(long address) |
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throws UnmappedAddressException, UnalignedAddressException { |
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checkJavaConfigured(); |
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utils.checkAlignment(address, jcharSize); |
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if (useFastAccessors) { |
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return cache.getChar(address, bigEndian); |
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} else { |
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byte[] data = readBytes(address, jcharSize); |
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return (char) utils.dataToJChar(data, jcharSize); |
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} |
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} |
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// NOTE: assumes value does not span pages (may be bad assumption on |
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// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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public double readJDouble(long address) |
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throws UnmappedAddressException, UnalignedAddressException { |
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checkJavaConfigured(); |
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utils.checkAlignment(address, jdoubleSize); |
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if (useFastAccessors) { |
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return cache.getDouble(address, bigEndian); |
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} else { |
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byte[] data = readBytes(address, jdoubleSize); |
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return utils.dataToJDouble(data, jdoubleSize); |
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} |
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} |
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295 |
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// NOTE: assumes value does not span pages (may be bad assumption on |
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// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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public float readJFloat(long address) |
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throws UnmappedAddressException, UnalignedAddressException { |
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checkJavaConfigured(); |
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301 |
utils.checkAlignment(address, jfloatSize); |
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if (useFastAccessors) { |
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return cache.getFloat(address, bigEndian); |
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} else { |
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byte[] data = readBytes(address, jfloatSize); |
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return utils.dataToJFloat(data, jfloatSize); |
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} |
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} |
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309 |
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// NOTE: assumes value does not span pages (may be bad assumption on |
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// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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public int readJInt(long address) |
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313 |
throws UnmappedAddressException, UnalignedAddressException { |
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314 |
checkJavaConfigured(); |
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315 |
utils.checkAlignment(address, jintSize); |
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316 |
if (useFastAccessors) { |
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317 |
return cache.getInt(address, bigEndian); |
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} else { |
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byte[] data = readBytes(address, jintSize); |
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320 |
return utils.dataToJInt(data, jintSize); |
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321 |
} |
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322 |
} |
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323 |
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324 |
// NOTE: assumes value does not span pages (may be bad assumption on |
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325 |
// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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326 |
public long readJLong(long address) |
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327 |
throws UnmappedAddressException, UnalignedAddressException { |
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328 |
checkJavaConfigured(); |
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329 |
utils.checkAlignment(address, jlongSize); |
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330 |
if (useFastAccessors) { |
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return cache.getLong(address, bigEndian); |
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} else { |
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333 |
byte[] data = readBytes(address, jlongSize); |
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334 |
return utils.dataToJLong(data, jlongSize); |
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335 |
} |
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336 |
} |
|
337 |
||
338 |
// NOTE: assumes value does not span pages (may be bad assumption on |
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339 |
// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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340 |
public short readJShort(long address) |
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341 |
throws UnmappedAddressException, UnalignedAddressException { |
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342 |
checkJavaConfigured(); |
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343 |
utils.checkAlignment(address, jshortSize); |
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344 |
if (useFastAccessors) { |
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345 |
return cache.getShort(address, bigEndian); |
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346 |
} else { |
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347 |
byte[] data = readBytes(address, jshortSize); |
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348 |
return utils.dataToJShort(data, jshortSize); |
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} |
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350 |
} |
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351 |
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352 |
// NOTE: assumes value does not span pages (may be bad assumption on |
|
353 |
// Solaris/x86; see unalignedAccessesOkay in DbxDebugger hierarchy) |
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354 |
public long readCInteger(long address, long numBytes, boolean isUnsigned) |
|
355 |
throws UnmappedAddressException, UnalignedAddressException { |
|
356 |
checkConfigured(); |
|
357 |
utils.checkAlignment(address, numBytes); |
|
358 |
if (useFastAccessors) { |
|
359 |
if (isUnsigned) { |
|
360 |
switch((int) numBytes) { |
|
361 |
case 1: return cache.getByte(address) & 0xFF; |
|
362 |
case 2: return cache.getShort(address, bigEndian) & 0xFFFF; |
|
363 |
case 4: return cache.getInt(address, bigEndian) & 0xFFFFFFFFL; |
|
364 |
case 8: return cache.getLong(address, bigEndian); |
|
365 |
default: { |
|
366 |
byte[] data = readBytes(address, numBytes); |
|
367 |
return utils.dataToCInteger(data, isUnsigned); |
|
368 |
} |
|
369 |
} |
|
370 |
} else { |
|
371 |
switch((int) numBytes) { |
|
372 |
case 1: return cache.getByte(address); |
|
373 |
case 2: return cache.getShort(address, bigEndian); |
|
374 |
case 4: return cache.getInt(address, bigEndian); |
|
375 |
case 8: return cache.getLong(address, bigEndian); |
|
376 |
default: { |
|
377 |
byte[] data = readBytes(address, numBytes); |
|
378 |
return utils.dataToCInteger(data, isUnsigned); |
|
379 |
} |
|
380 |
} |
|
381 |
} |
|
382 |
} else { |
|
383 |
byte[] data = readBytes(address, numBytes); |
|
384 |
return utils.dataToCInteger(data, isUnsigned); |
|
385 |
} |
|
386 |
} |
|
387 |
||
388 |
public void writeJBoolean(long address, boolean value) |
|
389 |
throws UnmappedAddressException, UnalignedAddressException { |
|
390 |
checkJavaConfigured(); |
|
391 |
utils.checkAlignment(address, jbooleanSize); |
|
392 |
byte[] data = utils.jbooleanToData(value); |
|
393 |
writeBytes(address, jbooleanSize, data); |
|
394 |
} |
|
395 |
||
396 |
public void writeJByte(long address, byte value) |
|
397 |
throws UnmappedAddressException, UnalignedAddressException { |
|
398 |
checkJavaConfigured(); |
|
399 |
utils.checkAlignment(address, jbyteSize); |
|
400 |
byte[] data = utils.jbyteToData(value); |
|
401 |
writeBytes(address, jbyteSize, data); |
|
402 |
} |
|
403 |
||
404 |
public void writeJChar(long address, char value) |
|
405 |
throws UnmappedAddressException, UnalignedAddressException { |
|
406 |
checkJavaConfigured(); |
|
407 |
utils.checkAlignment(address, jcharSize); |
|
408 |
byte[] data = utils.jcharToData(value); |
|
409 |
writeBytes(address, jcharSize, data); |
|
410 |
} |
|
411 |
||
412 |
public void writeJDouble(long address, double value) |
|
413 |
throws UnmappedAddressException, UnalignedAddressException { |
|
414 |
checkJavaConfigured(); |
|
415 |
utils.checkAlignment(address, jdoubleSize); |
|
416 |
byte[] data = utils.jdoubleToData(value); |
|
417 |
writeBytes(address, jdoubleSize, data); |
|
418 |
} |
|
419 |
||
420 |
public void writeJFloat(long address, float value) |
|
421 |
throws UnmappedAddressException, UnalignedAddressException { |
|
422 |
checkJavaConfigured(); |
|
423 |
utils.checkAlignment(address, jfloatSize); |
|
424 |
byte[] data = utils.jfloatToData(value); |
|
425 |
writeBytes(address, jfloatSize, data); |
|
426 |
} |
|
427 |
||
428 |
public void writeJInt(long address, int value) |
|
429 |
throws UnmappedAddressException, UnalignedAddressException { |
|
430 |
checkJavaConfigured(); |
|
431 |
utils.checkAlignment(address, jintSize); |
|
432 |
byte[] data = utils.jintToData(value); |
|
433 |
writeBytes(address, jintSize, data); |
|
434 |
} |
|
435 |
||
436 |
public void writeJLong(long address, long value) |
|
437 |
throws UnmappedAddressException, UnalignedAddressException { |
|
438 |
checkJavaConfigured(); |
|
439 |
utils.checkAlignment(address, jlongSize); |
|
440 |
byte[] data = utils.jlongToData(value); |
|
441 |
writeBytes(address, jlongSize, data); |
|
442 |
} |
|
443 |
||
444 |
public void writeJShort(long address, short value) |
|
445 |
throws UnmappedAddressException, UnalignedAddressException { |
|
446 |
checkJavaConfigured(); |
|
447 |
utils.checkAlignment(address, jshortSize); |
|
448 |
byte[] data = utils.jshortToData(value); |
|
449 |
writeBytes(address, jshortSize, data); |
|
450 |
} |
|
451 |
||
452 |
public void writeCInteger(long address, long numBytes, long value) |
|
453 |
throws UnmappedAddressException, UnalignedAddressException { |
|
454 |
checkConfigured(); |
|
455 |
utils.checkAlignment(address, numBytes); |
|
456 |
byte[] data = utils.cIntegerToData(numBytes, value); |
|
457 |
writeBytes(address, numBytes, data); |
|
458 |
} |
|
459 |
||
460 |
protected long readAddressValue(long address) |
|
461 |
throws UnmappedAddressException, UnalignedAddressException { |
|
462 |
return readCInteger(address, machDesc.getAddressSize(), true); |
|
463 |
} |
|
464 |
||
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465 |
protected long readCompOopAddressValue(long address) |
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|
466 |
throws UnmappedAddressException, UnalignedAddressException { |
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|
467 |
long value = readCInteger(address, getHeapOopSize(), true); |
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|
468 |
if (value != 0) { |
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|
469 |
// See oop.inline.hpp decode_heap_oop |
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|
470 |
value = (long)(narrowOopBase + (long)(value << narrowOopShift)); |
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|
471 |
} |
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|
472 |
return value; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
473 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
474 |
|
13969
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7054512: Compress class pointers after perm gen removal
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|
475 |
protected long readCompKlassAddressValue(long address) |
d2a189b83b87
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|
476 |
throws UnmappedAddressException, UnalignedAddressException { |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
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changeset
|
477 |
long value = readCInteger(address, getKlassPtrSize(), true); |
d2a189b83b87
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diff
changeset
|
478 |
if (value != 0) { |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
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parents:
5547
diff
changeset
|
479 |
value = (long)(narrowKlassBase + (long)(value << narrowKlassShift)); |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
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diff
changeset
|
480 |
} |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
481 |
return value; |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
482 |
} |
d2a189b83b87
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parents:
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changeset
|
483 |
|
1 | 484 |
protected void writeAddressValue(long address, long value) |
485 |
throws UnmappedAddressException, UnalignedAddressException { |
|
486 |
writeCInteger(address, machDesc.getAddressSize(), value); |
|
487 |
} |
|
488 |
||
489 |
/** Can be called by subclasses but can not be overridden */ |
|
490 |
protected final void checkConfigured() { |
|
491 |
if (machDesc == null) { |
|
492 |
throw new RuntimeException("MachineDescription must have been set by this point"); |
|
493 |
} |
|
494 |
if (utils == null) { |
|
495 |
throw new RuntimeException("DebuggerUtilities must have been set by this point"); |
|
496 |
} |
|
497 |
} |
|
498 |
||
499 |
/** Can be called by subclasses but can not be overridden */ |
|
500 |
protected final void checkJavaConfigured() { |
|
501 |
checkConfigured(); |
|
502 |
||
503 |
if (!javaPrimitiveTypesConfigured) { |
|
504 |
throw new RuntimeException("Java primitive type sizes have not yet been configured"); |
|
505 |
} |
|
506 |
} |
|
507 |
||
508 |
/** Possibly override page cache size with user-specified property */ |
|
509 |
protected int parseCacheNumPagesProperty(int defaultNum) { |
|
510 |
String cacheNumPagesString = System.getProperty("cacheNumPages"); |
|
511 |
if (cacheNumPagesString != null) { |
|
512 |
try { |
|
513 |
return Integer.parseInt(cacheNumPagesString); |
|
514 |
} catch (Exception e) { |
|
515 |
System.err.println("Error parsing cacheNumPages property:"); |
|
516 |
e.printStackTrace(); |
|
517 |
} |
|
518 |
} |
|
519 |
return defaultNum; |
|
520 |
} |
|
521 |
||
522 |
/** Interim solution for allowing subclasses to write bytes to |
|
523 |
process until we make that functionality available in the basic |
|
524 |
Address interface */ |
|
525 |
protected void invalidatePageCache(long startAddress, long numBytes) { |
|
526 |
cache.clear(startAddress, numBytes); |
|
527 |
} |
|
528 |
||
529 |
public long getJBooleanSize() { |
|
530 |
return jbooleanSize; |
|
531 |
} |
|
532 |
||
533 |
public long getJByteSize() { |
|
534 |
return jbyteSize; |
|
535 |
} |
|
536 |
||
537 |
public long getJCharSize() { |
|
538 |
return jcharSize; |
|
539 |
} |
|
540 |
||
541 |
public long getJDoubleSize() { |
|
542 |
return jdoubleSize; |
|
543 |
} |
|
544 |
||
545 |
public long getJFloatSize() { |
|
546 |
return jfloatSize; |
|
547 |
} |
|
548 |
||
549 |
public long getJIntSize() { |
|
550 |
return jintSize; |
|
551 |
} |
|
552 |
||
553 |
public long getJLongSize() { |
|
554 |
return jlongSize; |
|
555 |
} |
|
556 |
||
557 |
public long getJShortSize() { |
|
558 |
return jshortSize; |
|
559 |
} |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
560 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
561 |
public long getHeapOopSize() { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
562 |
return heapOopSize; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
563 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
564 |
|
2254
f13dda645a4b
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
670
diff
changeset
|
565 |
public long getNarrowOopBase() { |
f13dda645a4b
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
670
diff
changeset
|
566 |
return narrowOopBase; |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
567 |
} |
2254
f13dda645a4b
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
670
diff
changeset
|
568 |
public int getNarrowOopShift() { |
f13dda645a4b
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
670
diff
changeset
|
569 |
return narrowOopShift; |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
570 |
} |
13969
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
571 |
|
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
572 |
public long getKlassPtrSize() { |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
573 |
return klassPtrSize; |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
574 |
} |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
575 |
|
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
576 |
public long getNarrowKlassBase() { |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
577 |
return narrowKlassBase; |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
578 |
} |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
579 |
public int getNarrowKlassShift() { |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
580 |
return narrowKlassShift; |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
5547
diff
changeset
|
581 |
} |
1 | 582 |
} |