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 */ 23 package jdk.vm.ci.code.site; 24 25 public final class DataSectionReference extends Reference { 26 27 private boolean initialized; 28 private int offset; 29 30 public DataSectionReference() { 31 // will be set after the data section layout is fixed 32 offset = 0xDEADDEAD; 33 } 34 35 public int getOffset() { 36 assert initialized; 37 38 return offset; 39 } 40 41 public void setOffset(int offset) { 42 assert !initialized; 43 initialized = true; 44 45 this.offset = offset; 46 } 47 48 @Override 49 public int hashCode() { 50 return offset; 51 } 52 53 @Override 54 public boolean equals(Object obj) { 55 if (this == obj) { 56 return true; 57 } 58 if (obj instanceof DataSectionReference) { 59 DataSectionReference that = (DataSectionReference) obj; 60 return this.offset == that.offset; 61 } 62 return false; 63 } 64 65 @Override 66 public String toString() { 67 if (initialized) { 68 return String.format("DataSection[0x%x]", offset); 69 } else { 70 return "DataSection[?]"; 71 } 72 } 73 }