1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 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 package jdk.vm.ci.hotspot; 24 25 import jdk.vm.ci.code.stack.InspectedFrameVisitor; 26 import jdk.vm.ci.code.stack.StackIntrospection; 27 import jdk.vm.ci.meta.ResolvedJavaMethod; 28 29 public class HotSpotStackIntrospection implements StackIntrospection { 30 31 protected final HotSpotJVMCIRuntimeProvider runtime; 32 33 public HotSpotStackIntrospection(HotSpotJVMCIRuntimeProvider runtime) { 34 this.runtime = runtime; 35 } 36 37 @Override 38 public <T> T iterateFrames(ResolvedJavaMethod[] initialMethods, ResolvedJavaMethod[] matchingMethods, int initialSkip, InspectedFrameVisitor<T> visitor) { 39 CompilerToVM compilerToVM = runtime.getCompilerToVM(); 40 HotSpotStackFrameReference current = compilerToVM.getNextStackFrame(null, initialMethods, initialSkip); 41 while (current != null) { 42 T result = visitor.visitFrame(current); 43 if (result != null) { 44 return result; 45 } 46 current = compilerToVM.getNextStackFrame(current, matchingMethods, 0); 47 } 48 return null; 49 } 50 }