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Java example source code file (ELFFile.java)

This example Java source code file (ELFFile.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

class_32, data_lsb, data_msb, elf_magic_number, elffile, elfheader, ndx_encoding, ndx_magic_0, ndx_magic_1, ndx_magic_2, ndx_magic_3, ndx_object_size, ndx_version, version_invalid

The ELFFile.java Java example source code

/*
 * Copyright (c) 2001, 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 sun.jvm.hotspot.debugger.posix.elf;

public interface ELFFile {
    /** ELF magic number. */
    public static final byte ELF_MAGIC_NUMBER[] = { 0x7f, 'E', 'L', 'F' };

    public static final byte CLASS_INVALID = 0;
    /** 32-bit objects. */
    public static final byte CLASS_32 = 1;
    /** 64-bit objects. */
    public static final byte CLASS_64 = 2;

    /** No data encoding. */
    public static final byte DATA_INVALID = 0;
    /** LSB data encoding. */
    public static final byte DATA_LSB = 1;
    /** MSB data encoding. */
    public static final byte DATA_MSB = 2;

    /** No ELF header version. */
    public static final byte VERSION_INVALID = 0;
    /** Current ELF header version. */
    public static final byte VERSION_CURRENT = 1;

    public static final byte NDX_MAGIC_0 = 0;
    public static final byte NDX_MAGIC_1 = 1;
    public static final byte NDX_MAGIC_2 = 2;
    public static final byte NDX_MAGIC_3 = 3;
    public static final byte NDX_OBJECT_SIZE = 4;
    public static final byte NDX_ENCODING = 5;
    public static final byte NDX_VERSION = 6;

    public ELFHeader getHeader();
    public void close();

    /** Returns the 4 byte magic number for this file.  This value should
     * match the values in ELF_MAGIC_NUMBER. */
    public byte[] getMagicNumber();
    /** Returns a byte identifying the size of objects used for this ELF
     * file.  The byte will be either CLASS_INVALID, CLASS_32 or CLASS_64. */
    public byte getObjectSize();
    /** Returns a byte identifying the data encoding of the processor specific
     * data.  This byte will be either DATA_INVALID, DATA_LSB or DATA_MSB. */
    public byte getEncoding();
    /** Returns one of the version constants. This should be VERSION_CURRENT. */
    public byte getVersion();
}

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