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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
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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 formatted error message specified.
/** * 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); }