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.ByteOrder; 27 import jdk.tools.jaotc.binformat.macho.MachO; 28 import jdk.tools.jaotc.binformat.macho.MachO.mach_header_64; 29 30 /** 31 * Class that abstracts MACH-O target details. 32 * 33 */ 34 public class MachOTargetInfo { 35 /** 36 * Target architecture and subtype. 37 */ 38 private static final int arch; 39 private static final int subarch; 40 41 /** 42 * Architecture endian-ness. 43 */ 44 private static final int endian = mach_header_64.CPU_SUBTYPE_LITTLE_ENDIAN; 45 46 /** 47 * Target OS string. 48 */ 49 private static final String osName; 50 51 static { 52 // Find the target arch details 53 String archStr = System.getProperty("os.arch").toLowerCase(); 54 55 if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) { 56 System.out.println("Only Little Endian byte order supported!"); 57 } 58 59 if (archStr.equals("amd64") || archStr.equals("x86_64")) { 60 arch = mach_header_64.CPU_TYPE_X86_64; 61 subarch = mach_header_64.CPU_SUBTYPE_I386_ALL; 62 } else { 63 System.out.println("Unsupported architecture " + archStr); 64 arch = mach_header_64.CPU_TYPE_ANY; 65 subarch = 0; 66 } 67 68 osName = System.getProperty("os.name").toLowerCase(); 69 } 70 71 public static int getMachOArch() { 72 return arch; 73 } 74 75 public static int getMachOSubArch() { 76 return subarch; 77 } 78 79 public static int getMachOEndian() { 80 return endian; 81 } 82 83 public static String getOsName() { 84 return osName; 85 } 86 } 87