author | chegar |
Thu, 17 Oct 2019 20:54:25 +0100 | |
branch | datagramsocketimpl-branch |
changeset 58679 | 9c3209ff7550 |
parent 58678 | 9cf78a70fa4f |
parent 58299 | 6df94ce3ab2f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2019, 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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package jdk.tools.jaotc; |
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import static jdk.tools.jaotc.AOTCompiledClass.getType; |
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import static jdk.tools.jaotc.AOTCompiledClass.metadataName; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.graalvm.compiler.code.CompilationResult; |
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import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; |
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import org.graalvm.compiler.hotspot.HotSpotGraalServices; |
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import jdk.tools.jaotc.binformat.BinaryContainer; |
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import jdk.tools.jaotc.binformat.ByteContainer; |
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import jdk.tools.jaotc.binformat.GotSymbol; |
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import jdk.tools.jaotc.utils.NativeOrderOutputStream; |
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import jdk.vm.ci.code.StackSlot; |
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import jdk.vm.ci.code.site.DataPatch; |
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import jdk.vm.ci.code.site.Infopoint; |
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import jdk.vm.ci.code.site.Mark; |
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import jdk.vm.ci.hotspot.HotSpotCompiledCode; |
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import jdk.vm.ci.hotspot.HotSpotMetaData; |
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final class MetadataBuilder { |
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private final DataBuilder dataBuilder; |
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private final BinaryContainer binaryContainer; |
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MetadataBuilder(DataBuilder dataBuilder) { |
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this.dataBuilder = dataBuilder; |
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this.binaryContainer = dataBuilder.getBinaryContainer(); |
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} |
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/** |
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* Process compiled methods and create method metadata. |
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*/ |
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void processMetadata(List<AOTCompiledClass> classes, AOTCompiledClass stubCompiledCode) { |
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for (AOTCompiledClass c : classes) { |
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processMetadataClass(c); |
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} |
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processMetadataClass(stubCompiledCode); |
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} |
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private void processMetadataClass(AOTCompiledClass c) { |
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processInfopointsAndMarks(c); |
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createMethodMetadata(c); |
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} |
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/** |
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* Add metadata for each of the compiled methods in {@code compiledClass} to read-only section |
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* of {@code binaryContainer}. |
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* |
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* @param compiledClass AOT Graal compilation result |
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*/ |
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private void createMethodMetadata(AOTCompiledClass compiledClass) { |
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HotSpotGraalRuntimeProvider runtime = dataBuilder.getBackend().getRuntime(); |
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ByteContainer methodMetadataContainer = binaryContainer.getMethodMetadataContainer(); |
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// For each of the compiled java methods, create records holding information about them. |
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for (CompiledMethodInfo methodInfo : compiledClass.getCompiledMethods()) { |
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// Get the current offset in the methodmetadata container. |
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final int startOffset = methodMetadataContainer.getByteStreamSize(); |
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assert startOffset % 8 == 0 : "Must be aligned on 8"; |
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methodInfo.setMetadataOffset(startOffset); |
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HotSpotCompiledCode compiledMethod = methodInfo.compiledCode(); |
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// pc and scope description |
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HotSpotMetaData metaData = new HotSpotMetaData(runtime.getTarget(), compiledMethod); |
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byte[] pcDesc = metaData.pcDescBytes(); |
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byte[] scopeDesc = metaData.scopesDescBytes(); |
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byte[] relocationInfo = metaData.relocBytes(); |
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byte[] oopMapInfo = metaData.oopMaps(); |
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byte[] implicitExceptionBytes = HotSpotGraalServices.getImplicitExceptionBytes(metaData); |
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// create a global symbol at this position for this method |
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NativeOrderOutputStream metadataStream = new NativeOrderOutputStream(); |
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// get the code size |
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int codeSize = methodInfo.getCodeSize(); |
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// get code offsets |
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CodeOffsets co = CodeOffsets.buildFrom(methodInfo.getCompilationResult().getMarks()); |
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int unverifiedEntry = co.entry(); |
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int verifiedEntry = co.verifiedEntry(); |
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int exceptionHandler = co.exceptionHandler(); |
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int deoptHandler = co.deoptHandler(); |
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int frameSize = methodInfo.getCompilationResult().getTotalFrameSize(); |
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StackSlot deoptRescueSlot = methodInfo.getCompilationResult().getCustomStackArea(); |
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int origPcOffset = deoptRescueSlot != null ? deoptRescueSlot.getOffset(frameSize) : -1; |
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// get stubs offset |
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int stubsOffset = methodInfo.getStubsOffset(); |
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int offset = addMetadataEntries(binaryContainer, metaData, methodInfo); |
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methodInfo.setMetadataGotOffset(offset); |
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methodInfo.setMetadataGotSize(metaData.metadataEntries().length); |
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int unsafeAccess = methodInfo.getCompilationResult().hasUnsafeAccess() ? 1 : 0; |
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try { |
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// calculate total size of the container |
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NativeOrderOutputStream.PatchableInt totalSize = metadataStream.patchableInt(); |
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// @formatter:off |
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metadataStream.putInt(codeSize). |
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putInt(unverifiedEntry). |
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putInt(verifiedEntry). |
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putInt(exceptionHandler). |
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putInt(deoptHandler). |
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putInt(stubsOffset). |
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putInt(frameSize). |
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putInt(origPcOffset). |
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putInt(unsafeAccess); |
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// @formatter:on |
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NativeOrderOutputStream.PatchableInt pcDescOffset = metadataStream.patchableInt(); |
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NativeOrderOutputStream.PatchableInt scopeOffset = metadataStream.patchableInt(); |
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NativeOrderOutputStream.PatchableInt relocationOffset = metadataStream.patchableInt(); |
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NativeOrderOutputStream.PatchableInt exceptionOffset = metadataStream.patchableInt(); |
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NativeOrderOutputStream.PatchableInt implictTableOffset = null; |
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if (implicitExceptionBytes != null) { |
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implictTableOffset = metadataStream.patchableInt(); |
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} |
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NativeOrderOutputStream.PatchableInt oopMapOffset = metadataStream.patchableInt(); |
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metadataStream.align(8); |
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pcDescOffset.set(metadataStream.position()); |
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metadataStream.put(pcDesc).align(8); |
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scopeOffset.set(metadataStream.position()); |
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metadataStream.put(scopeDesc).align(8); |
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relocationOffset.set(metadataStream.position()); |
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metadataStream.put(relocationInfo).align(8); |
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exceptionOffset.set(metadataStream.position()); |
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metadataStream.put(metaData.exceptionBytes()).align(8); |
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if (implicitExceptionBytes != null) { |
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implictTableOffset.set(metadataStream.position()); |
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metadataStream.put(implicitExceptionBytes).align(8); |
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} |
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// oopmaps should be last |
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oopMapOffset.set(metadataStream.position()); |
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metadataStream.put(oopMapInfo).align(8); |
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totalSize.set(metadataStream.position()); |
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byte[] data = metadataStream.array(); |
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methodMetadataContainer.appendBytes(data, 0, data.length); |
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} catch (Exception e) { |
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throw new InternalError("Exception occurred during compilation of " + methodInfo.getMethodInfo().getSymbolName(), e); |
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} |
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methodInfo.clearCompileData(); // Clear unused anymore compilation data |
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} |
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} |
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private static int addMetadataEntries(BinaryContainer binaryContainer, HotSpotMetaData metaData, CompiledMethodInfo methodInfo) { |
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Object[] metaDataEntries = metaData.metadataEntries(); |
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if (metaDataEntries.length == 0) { |
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return 0; |
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} |
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int metadataGotSlotsStart = binaryContainer.getMetadataGotContainer().getByteStreamSize(); // binaryContainer.reserveMetadataGOTSlots(metaDataEntries.length); |
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for (int index = 0; index < metaDataEntries.length; index++) { |
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Object ref = metaDataEntries[index]; |
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String name = metadataName(ref); |
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// Create GOT cells for klasses referenced in metadata |
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addMetadataEntry(binaryContainer, name); |
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// We should already have added entries for this klass |
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assert AOTCompiledClass.getAOTKlassData(getType(ref)) != null; |
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assert methodInfo.getDependentKlassData(getType(ref)) != null; |
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} |
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return metadataGotSlotsStart; |
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} |
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private static void addMetadataEntry(BinaryContainer binaryContainer, String name) { |
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int stringOffset = binaryContainer.addMetaspaceName(name); |
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binaryContainer.addMetadataGotEntry(stringOffset); |
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} |
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/** |
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* Process {@link Infopoint}s, {@link Mark}s and {@link DataPatch}es generated by the compiler |
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* to create all needed binary section constructs. |
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* |
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* @param compiledClass compilation result |
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*/ |
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private void processInfopointsAndMarks(AOTCompiledClass compiledClass) { |
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ArrayList<CompiledMethodInfo> compiledMethods = compiledClass.getCompiledMethods(); |
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MarkProcessor markProcessor = new MarkProcessor(dataBuilder); |
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DataPatchProcessor dataPatchProcessor = new DataPatchProcessor(dataBuilder); |
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InfopointProcessor infopointProcessor = new InfopointProcessor(dataBuilder); |
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for (CompiledMethodInfo methodInfo : compiledMethods) { |
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CompilationResult compilationResult = methodInfo.getCompilationResult(); |
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String targetSymbol = "state.M" + methodInfo.getCodeId(); |
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String gotName = "got." + targetSymbol; |
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GotSymbol symbol = binaryContainer.getMethodStateContainer().createGotSymbol(gotName); |
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assert (symbol.getIndex() == methodInfo.getCodeId()) : "wrong offset"; |
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for (Infopoint infoPoint : compilationResult.getInfopoints()) { |
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infopointProcessor.process(methodInfo, infoPoint); |
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} |
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for (Mark mark : compilationResult.getMarks()) { |
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markProcessor.process(methodInfo, mark); |
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} |
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for (DataPatch dataPatch : compilationResult.getDataPatches()) { |
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dataPatchProcessor.process(methodInfo, dataPatch); |
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} |
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} |
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} |
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} |