1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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
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22  */
23 
24 
25 
26 package jdk.tools.jaotc.binformat.macho;
27 
28 import java.nio.ByteOrder;
29 import jdk.tools.jaotc.binformat.macho.MachO.mach_header_64;
30 
31 /**
32  * Class that abstracts MACH-O target details.
33  *
34  */
35 final class MachOTargetInfo {
36     /**
37      * Target architecture and subtype.
38      */
39     private static final int arch;
40     private static final int subarch;
41 
42     /**
43      * Architecture endian-ness.
44      */
45     private static final int endian = mach_header_64.CPU_SUBTYPE_LITTLE_ENDIAN;
46 
47     /**
48      * Target OS string.
49      */
50     private static final String osName;
51 
52     static {
53         // Find the target arch details
54         String archStr = System.getProperty("os.arch").toLowerCase();
55 
56         if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) {
57             System.out.println("Only Little Endian byte order supported!");
58         }
59 
60         if (archStr.equals("amd64") || archStr.equals("x86_64")) {
61             arch = mach_header_64.CPU_TYPE_X86_64;
62             subarch = mach_header_64.CPU_SUBTYPE_I386_ALL;
63         } else {
64             System.out.println("Unsupported architecture " + archStr);
65             arch = mach_header_64.CPU_TYPE_ANY;
66             subarch = 0;
67         }
68 
69         osName = System.getProperty("os.name").toLowerCase();
70     }
71 
getMachOArch()72     static int getMachOArch() {
73         return arch;
74     }
75 
getMachOSubArch()76     static int getMachOSubArch() {
77         return subarch;
78     }
79 
getMachOEndian()80     static int getMachOEndian() {
81         return endian;
82     }
83 
getOsName()84     static String getOsName() {
85         return osName;
86     }
87 }
88