1 /*
   2  * Copyright (c) 2017, 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.NativeSymbol;
  31 import jdk.tools.jaotc.binformat.macho.MachO.nlist_64;
  32 
  33 final class MachOSymbol extends NativeSymbol {
  34     private final ByteBuffer sym;
  35 
  36     MachOSymbol(int symbolindex, int strindex, byte type, byte sectindex, long offset) {
  37         super(symbolindex);
  38         sym = MachOByteBuffer.allocate(nlist_64.totalsize);
  39 
  40         sym.putInt(nlist_64.n_strx.off, strindex);
  41         sym.put(nlist_64.n_type.off, type);
  42         // Section indexes start at 1 but we manage the index internally
  43         // as 0 relative
  44         sym.put(nlist_64.n_sect.off, (byte) (sectindex + 1));
  45         sym.putChar(nlist_64.n_desc.off, (char) 0);
  46         sym.putLong(nlist_64.n_value.off, offset);
  47     }
  48 
  49     byte[] getArray() {
  50         return sym.array();
  51     }
  52 }