--- /dev/null 2016-12-30 14:52:30.584485998 -0500 +++ new/src/jdk.aot/share/classes/jdk.tools.jaotc.binformat/src/jdk/tools/jaotc/binformat/elf/ElfTargetInfo.java 2017-02-08 13:51:51.881686931 -0500 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package jdk.tools.jaotc.binformat.elf; + +import java.nio.ByteOrder; +import jdk.tools.jaotc.binformat.elf.Elf; +import jdk.tools.jaotc.binformat.elf.Elf.Elf64_Ehdr; + +/** + * Class that abstracts MACH-O target details. + * + */ +public class ElfTargetInfo { + /** + * Target architecture. + */ + private static final char arch; + + /** + * Architecture endian-ness. + */ + private static final int endian = Elf64_Ehdr.ELFDATA2LSB; + + /** + * Target OS string. + */ + private static String osName; + + static { + // Find the target arch details + String archStr = System.getProperty("os.arch").toLowerCase(); + if (ByteOrder.nativeOrder() != ByteOrder.LITTLE_ENDIAN) { + System.out.println("Only Little Endian byte order supported!"); + } + + if (archStr.equals("amd64") || archStr.equals("x86_64")) { + arch = Elf64_Ehdr.EM_X86_64; + } else { + System.out.println("Unsupported architecture " + archStr); + arch = Elf64_Ehdr.EM_NONE; + } + + osName = System.getProperty("os.name").toLowerCase(); + if (!osName.equals("linux") && !osName.equals("sunos")) { + System.out.println("Unsupported Operating System " + osName); + osName = "Unknown"; + } + } + + public static char getElfArch() { + return arch; + } + + public static int getElfEndian() { + return endian; + } + + public static String getOsName() { + return osName; + } +} +