Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/site/DataSectionReference.java @ 24225:a2dbb6fcc923
Added tag jvmci-0.33 for changeset 3aed4cb813f4
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 18 Aug 2017 22:47:33 +0200 |
parents | 3e8ce13f4e12 |
children |
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/* * 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[?]"; } } }