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annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotStackIntrospection.java @ 24218:719853999215 jvmci-0.32

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Merge with jdk8u141-b15
author Doug Simon <doug.simon@oracle.com>
date Mon, 14 Aug 2017 23:20:38 +0200
parents 1bbd4a7c274b
children
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353eb2b44df8 added HotSpotStackIntrospection and made CompilerToVM.getNextStackFrame package-private
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1 /*
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package jdk.vm.ci.hotspot;
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24
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25 import jdk.vm.ci.code.stack.InspectedFrameVisitor;
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26 import jdk.vm.ci.code.stack.StackIntrospection;
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27 import jdk.vm.ci.meta.ResolvedJavaMethod;
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28
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29 public class HotSpotStackIntrospection implements StackIntrospection {
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30
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31 protected final HotSpotJVMCIRuntimeProvider runtime;
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32
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33 public HotSpotStackIntrospection(HotSpotJVMCIRuntimeProvider runtime) {
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34 this.runtime = runtime;
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35 }
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36
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37 @Override
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38 public <T> T iterateFrames(ResolvedJavaMethod[] initialMethods, ResolvedJavaMethod[] matchingMethods, int initialSkip, InspectedFrameVisitor<T> visitor) {
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39 CompilerToVM compilerToVM = runtime.getCompilerToVM();
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40 HotSpotStackFrameReference current = compilerToVM.getNextStackFrame(null, initialMethods, initialSkip);
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41 while (current != null) {
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42 T result = visitor.visitFrame(current);
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43 if (result != null) {
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44 return result;
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45 }
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46 current = compilerToVM.getNextStackFrame(current, matchingMethods, 0);
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47 }
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48 return null;
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49 }
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50 }