| /* |
| * Copyright (c) 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 jdk.vm.ci.code.site; |
| |
| /** |
| * Represents a pointer to some location in the data section that should be {@link DataPatch |
| * patched} into the code. |
| */ |
| public final class DataSectionReference extends Reference { |
| |
| private boolean initialized; |
| private int offset; |
| |
| public DataSectionReference() { |
| // will be set after the data section layout is fixed |
| offset = 0xDEADDEAD; |
| } |
| |
| public int getOffset() { |
| assert initialized; |
| |
| return offset; |
| } |
| |
| public void setOffset(int offset) { |
| assert !initialized; |
| initialized = true; |
| |
| this.offset = offset; |
| } |
| |
| @Override |
| public int hashCode() { |
| return offset; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof DataSectionReference) { |
| DataSectionReference that = (DataSectionReference) obj; |
| return this.offset == that.offset; |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| if (initialized) { |
| return String.format("DataSection[0x%x]", offset); |
| } else { |
| return "DataSection[?]"; |
| } |
| } |
| } |