HotSpotStackIntrospection.java revision 12651:6ef01bd40ce2 
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 */
23package jdk.vm.ci.hotspot;
24
25import jdk.vm.ci.code.stack.InspectedFrameVisitor;
26import jdk.vm.ci.code.stack.StackIntrospection;
27import jdk.vm.ci.meta.ResolvedJavaMethod;
28
29public 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}
51