| /* |
| * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.nodes; |
| |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.graph.NodeInputList; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| |
| /** |
| * A node that results in a platform dependent breakpoint instruction being emitted. A number of |
| * arguments can be associated with such a node for placing values of interest in the Java ABI |
| * specified parameter locations corresponding to the kinds of the values. That is, the arguments |
| * are set up as if the breakpoint instruction was a call to a compiled Java method. |
| * <p> |
| * A breakpoint is usually place by defining a node intrinsic method as follows: |
| * |
| * <pre> |
| * {@literal @}NodeIntrinsic(BreakpointNode.class) |
| * static void breakpoint(Object object, Word mark, Word value) { |
| * throw new GraalError(""); |
| * } |
| * </pre> |
| * |
| * Note that the signature is arbitrary. It's sole purpose is to capture values you may want to |
| * inspect in the native debugger when the breakpoint is hit. |
| */ |
| @NodeInfo |
| public final class BreakpointNode extends FixedWithNextNode implements LIRLowerable { |
| |
| public static final NodeClass<BreakpointNode> TYPE = NodeClass.create(BreakpointNode.class); |
| @Input NodeInputList<ValueNode> arguments; |
| |
| public BreakpointNode(ValueNode... arguments) { |
| super(TYPE, StampFactory.forVoid()); |
| this.arguments = new NodeInputList<>(this, arguments); |
| } |
| |
| @Override |
| public void generate(NodeLIRBuilderTool gen) { |
| gen.visitBreakpointNode(this); |
| } |
| |
| public NodeInputList<ValueNode> arguments() { |
| return arguments; |
| } |
| |
| @NodeIntrinsic |
| public static native void breakpoint(); |
| } |