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 package jdk.tools.jaotc.binformat.macho;
  25 
  26 import java.nio.ByteBuffer;
  27 import java.nio.ByteOrder;
  28 
  29 import jdk.tools.jaotc.binformat.macho.MachO;
  30 import jdk.tools.jaotc.binformat.macho.MachO.segment_command_64;
  31 import jdk.tools.jaotc.binformat.macho.MachOByteBuffer;
  32 
  33 public class MachOSegment {
  34     ByteBuffer segment;
  35 
  36     public MachOSegment(int size, int fileoff, int filesize, int nsects) {
  37         segment = MachOByteBuffer.allocate(segment_command_64.totalsize);
  38 
  39         segment.putInt(segment_command_64.cmd.off, segment_command_64.LC_SEGMENT_64);
  40         segment.putInt(segment_command_64.cmdsize.off, size);
  41         segment.putInt(segment_command_64.maxprot.off, 7);
  42         segment.putInt(segment_command_64.initprot.off, 7);
  43         segment.putInt(segment_command_64.nsects.off, nsects);
  44         segment.putInt(segment_command_64.flags.off, 0);
  45         segment.putLong(segment_command_64.vmaddr.off, 0);
  46         segment.putLong(segment_command_64.vmsize.off, filesize);
  47         segment.putLong(segment_command_64.fileoff.off, fileoff);
  48         segment.putLong(segment_command_64.filesize.off, filesize);
  49     }
  50 
  51     public byte[] getArray() {
  52         return segment.array();
  53     }
  54 }
  55 
  56