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.pecoff;
  25 
  26 import java.nio.ByteOrder;
  27 import jdk.tools.jaotc.binformat.pecoff.PECoff;
  28 import jdk.tools.jaotc.binformat.pecoff.PECoff.IMAGE_FILE_HEADER;
  29 
  30 /**
  31  * Class that abstracts MACH-O target details.
  32  *
  33  */
  34 public class PECoffTargetInfo {
  35     /**
  36      * Target architecture.
  37      */
  38     private static final char arch;
  39 
  40     /**
  41      * Target OS string.
  42      */
  43     private static String osName;
  44 
  45     static {
  46         // Find the target arch details
  47         String archStr = System.getProperty("os.arch").toLowerCase();
  48         if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) {
  49             System.out.println("Only Little Endian byte order supported!");
  50         }
  51 
  52         if (archStr.equals("amd64") || archStr.equals("x86_64")) {
  53             arch = IMAGE_FILE_HEADER.IMAGE_FILE_MACHINE_AMD64;
  54         } else {
  55             System.out.println("Unsupported architecture " + archStr);
  56             arch = IMAGE_FILE_HEADER.IMAGE_FILE_MACHINE_UNKNOWN;
  57         }
  58 
  59         osName = System.getProperty("os.name").toLowerCase();
  60         if (!osName.contains("windows")) {
  61             System.out.println("Unsupported Operating System " + osName);
  62             osName = "Unknown";
  63         }
  64     }
  65 
  66     public static char getPECoffArch() {
  67         return arch;
  68     }
  69 
  70     public static String getOsName() {
  71         return osName;
  72     }
  73 }
  74