1 /* 2 * Copyright (c) 2017, 2018, 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 24 25 26 package jdk.tools.jaotc.binformat.macho; 27 28 import java.nio.ByteBuffer; 29 30 import jdk.tools.jaotc.binformat.macho.MachO.reloc_info; 31 32 final class MachORelocEntry { 33 private final ByteBuffer entry; 34 MachORelocEntry(int offset, int symno, int pcrel, int length, int isextern, int type)35 MachORelocEntry(int offset, int symno, int pcrel, int length, int isextern, int type) { 36 37 entry = MachOByteBuffer.allocate(reloc_info.totalsize); 38 39 entry.putInt(reloc_info.r_address.off, offset); 40 41 // Encode and store the relocation entry bitfields 42 // @formatter:off 43 entry.putInt(reloc_info.r_relocinfo.off, 44 ((symno & reloc_info.REL_SYMNUM_MASK) << reloc_info.REL_SYMNUM_SHIFT) | 45 ((pcrel & reloc_info.REL_PCREL_MASK) << reloc_info.REL_PCREL_SHIFT) | 46 ((length & reloc_info.REL_LENGTH_MASK) << reloc_info.REL_LENGTH_SHIFT) | 47 ((isextern & reloc_info.REL_EXTERN_MASK) << reloc_info.REL_EXTERN_SHIFT) | 48 ((type & reloc_info.REL_TYPE_MASK) << reloc_info.REL_TYPE_SHIFT)); 49 // @formatter:on 50 } 51 getArray()52 byte[] getArray() { 53 return entry.array(); 54 } 55 } 56