1 /* 2 * Copyright (c) 2001, 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, 20 * CA 94065 USA or visit www.oracle.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.debugger.posix.elf; 26 27 public interface ELFFile { 28 /** ELF magic number. */ 29 public static final byte ELF_MAGIC_NUMBER[] = { 0x7f, 'E', 'L', 'F' }; 30 31 public static final byte CLASS_INVALID = 0; 32 /** 32-bit objects. */ 33 public static final byte CLASS_32 = 1; 34 /** 64-bit objects. */ 35 public static final byte CLASS_64 = 2; 36 37 /** No data encoding. */ 38 public static final byte DATA_INVALID = 0; 39 /** LSB data encoding. */ 40 public static final byte DATA_LSB = 1; 41 /** MSB data encoding. */ 42 public static final byte DATA_MSB = 2; 43 44 /** No ELF header version. */ 45 public static final byte VERSION_INVALID = 0; 46 /** Current ELF header version. */ 47 public static final byte VERSION_CURRENT = 1; 48 49 public static final byte NDX_MAGIC_0 = 0; 50 public static final byte NDX_MAGIC_1 = 1; 51 public static final byte NDX_MAGIC_2 = 2; 52 public static final byte NDX_MAGIC_3 = 3; 53 public static final byte NDX_OBJECT_SIZE = 4; 54 public static final byte NDX_ENCODING = 5; 55 public static final byte NDX_VERSION = 6; 56 57 public ELFHeader getHeader(); 58 public void close(); 59 60 /** Returns the 4 byte magic number for this file. This value should 61 * match the values in ELF_MAGIC_NUMBER. */ 62 public byte[] getMagicNumber(); 63 /** Returns a byte identifying the size of objects used for this ELF 64 * file. The byte will be either CLASS_INVALID, CLASS_32 or CLASS_64. */ 65 public byte getObjectSize(); 66 /** Returns a byte identifying the data encoding of the processor specific 67 * data. This byte will be either DATA_INVALID, DATA_LSB or DATA_MSB. */ 68 public byte getEncoding(); 69 /** Returns one of the version constants. This should be VERSION_CURRENT. */ 70 public byte getVersion(); 71 }