1/* 2 * Copyright (c) 2016, 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.code.site; 24 25import java.util.Objects; 26 27import jdk.vm.ci.code.DebugInfo; 28import jdk.vm.ci.meta.InvokeTarget; 29 30/** 31 * Represents a call in the code. 32 */ 33public final class Call extends Infopoint { 34 35 /** 36 * The target of the call. 37 */ 38 public final InvokeTarget target; 39 40 /** 41 * The size of the call instruction. 42 */ 43 public final int size; 44 45 /** 46 * Specifies if this call is direct or indirect. A direct call has an immediate operand encoding 47 * the absolute or relative (to the call itself) address of the target. An indirect call has a 48 * register or memory operand specifying the target address of the call. 49 */ 50 public final boolean direct; 51 52 public Call(InvokeTarget target, int pcOffset, int size, boolean direct, DebugInfo debugInfo) { 53 super(pcOffset, debugInfo, InfopointReason.CALL); 54 this.size = size; 55 this.target = target; 56 this.direct = direct; 57 } 58 59 @Override 60 public boolean equals(Object obj) { 61 if (this == obj) { 62 return true; 63 } 64 if (obj instanceof Call && super.equals(obj)) { 65 Call that = (Call) obj; 66 if (this.size == that.size && this.direct == that.direct && Objects.equals(this.target, that.target)) { 67 return true; 68 } 69 } 70 return false; 71 } 72 73 @Override 74 public String toString() { 75 StringBuilder sb = new StringBuilder(); 76 sb.append(pcOffset); 77 sb.append('['); 78 sb.append(target); 79 sb.append(']'); 80 81 if (debugInfo != null) { 82 appendDebugInfo(sb, debugInfo); 83 } 84 85 return sb.toString(); 86 } 87} 88