| /* |
| * Copyright (c) 2017, 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.tools.jaotc.binformat.macho; |
| |
| import java.util.ArrayList; |
| import java.nio.ByteBuffer; |
| |
| import jdk.tools.jaotc.binformat.macho.MachORelocEntry; |
| import jdk.tools.jaotc.binformat.macho.MachO.reloc_info; |
| import jdk.tools.jaotc.binformat.macho.MachOByteBuffer; |
| |
| final class MachORelocTable { |
| private final ArrayList<ArrayList<MachORelocEntry>> relocEntries; |
| int fileOffset; |
| |
| MachORelocTable(int numsects) { |
| relocEntries = new ArrayList<>(numsects); |
| for (int i = 0; i < numsects; i++) { |
| relocEntries.add(new ArrayList<MachORelocEntry>()); |
| } |
| } |
| |
| void createRelocationEntry(int sectindex, int offset, int symno, int pcrel, int length, int isextern, int type) { |
| MachORelocEntry entry = new MachORelocEntry(offset, symno, pcrel, length, isextern, type); |
| relocEntries.get(sectindex).add(entry); |
| } |
| |
| static int getAlign() { |
| return (4); |
| } |
| |
| int getNumRelocs(int section_index) { |
| return relocEntries.get(section_index).size(); |
| } |
| |
| // Return the relocation entries for a single section |
| // or null if no entries added to section |
| byte[] getRelocData(int section_index) { |
| ArrayList<MachORelocEntry> entryList = relocEntries.get(section_index); |
| |
| if (entryList.size() == 0) { |
| return null; |
| } |
| ByteBuffer relocData = MachOByteBuffer.allocate(entryList.size() * reloc_info.totalsize); |
| |
| // Copy each entry to a single ByteBuffer |
| for (int i = 0; i < entryList.size(); i++) { |
| MachORelocEntry entry = entryList.get(i); |
| relocData.put(entry.getArray()); |
| } |
| |
| return (relocData.array()); |
| } |
| } |