1 /* 2 * Copyright (c) 2011, 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 org.graalvm.compiler.lir.amd64; 24 25 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 26 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 27 28 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; 29 import org.graalvm.compiler.lir.LIRInstructionClass; 30 import org.graalvm.compiler.lir.Opcode; 31 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 32 33 import jdk.vm.ci.meta.Value; 34 35 /** 36 * Emits a breakpoint. 37 */ 38 @Opcode("BREAKPOINT") 39 public final class AMD64BreakpointOp extends AMD64LIRInstruction { 40 public static final LIRInstructionClass<AMD64BreakpointOp> TYPE = LIRInstructionClass.create(AMD64BreakpointOp.class); 41 42 /** 43 * A set of values loaded into the Java ABI parameter locations (for inspection by a debugger). 44 */ 45 @Use({REG, STACK}) protected Value[] parameters; 46 47 public AMD64BreakpointOp(Value[] parameters) { 48 super(TYPE); 49 this.parameters = parameters; 50 } 51 52 @Override 53 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler asm) { 54 asm.int3(); 55 } 56 }