/*

 * Copyright (c) 2012, 2016, 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.hotspot.nodes;

import static org.graalvm.compiler.hotspot.HotSpotBackend.VM_ERROR;

import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN;

import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN;

import org.graalvm.compiler.bytecode.Bytecode;

import org.graalvm.compiler.core.common.LIRKind;

import org.graalvm.compiler.core.common.spi.ForeignCallLinkage;

import org.graalvm.compiler.core.common.type.StampFactory;

import org.graalvm.compiler.graph.NodeClass;

import org.graalvm.compiler.nodeinfo.NodeInfo;

import org.graalvm.compiler.nodes.FrameState;

import org.graalvm.compiler.nodes.ValueNode;

import org.graalvm.compiler.nodes.spi.LIRLowerable;

import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;

import org.graalvm.compiler.replacements.Log;

import org.graalvm.compiler.replacements.nodes.CStringConstant;

import jdk.vm.ci.code.CodeUtil;

import jdk.vm.ci.meta.ResolvedJavaMethod;

import jdk.vm.ci.meta.Value;

/**

 * Causes the VM to exit with a description of the current Java location and an optional

 * {@linkplain Log#printf(String, long) formatted} error message specified.

 */

@NodeInfo(cycles = CYCLES_UNKNOWN, size = SIZE_UNKNOWN)

public final class VMErrorNode extends DeoptimizingStubCall implements LIRLowerable {

    public static final NodeClass<VMErrorNode> TYPE = NodeClass.create(VMErrorNode.class);

    protected final String format;

    @Input ValueNode value;

    public VMErrorNode(String format, ValueNode value) {

        super(TYPE, StampFactory.forVoid());

        this.format = format;

        this.value = value;

    }

    @Override

    public void generate(NodeLIRBuilderTool gen) {

        String whereString;

        if (stateBefore() != null) {

            String nl = CodeUtil.NEW_LINE;

            StringBuilder sb = new StringBuilder("in compiled code associated with frame state:");

            FrameState fs = stateBefore();

            while (fs != null) {

                Bytecode.appendLocation(sb.append(nl).append("\t"), fs.getCode(), fs.bci);

                fs = fs.outerFrameState();

            }

            whereString = sb.toString();

        } else {

            ResolvedJavaMethod method = graph().method();

            whereString = "in compiled code for " + (method == null ? graph().toString() : method.format("%H.%n(%p)"));

        }

        LIRKind wordKind = gen.getLIRGeneratorTool().getLIRKind(StampFactory.pointer());

        Value whereArg = gen.getLIRGeneratorTool().emitConstant(wordKind, new CStringConstant(whereString));

        Value formatArg = gen.getLIRGeneratorTool().emitConstant(wordKind, new CStringConstant(format));

        ForeignCallLinkage linkage = gen.getLIRGeneratorTool().getForeignCalls().lookupForeignCall(VM_ERROR);

        gen.getLIRGeneratorTool().emitForeignCall(linkage, null, whereArg, formatArg, gen.operand(value));

    }

    @NodeIntrinsic

    public static native void vmError(@ConstantNodeParameter String format, long value);

}