1 /* $NetBSD: elf.c,v 1.3 2016/02/20 02:43:42 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2006,2008,2011 Joseph Koshy 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <libelf.h> 30 31 #include "_libelf.h" 32 33 __RCSID("$NetBSD: elf.c,v 1.3 2016/02/20 02:43:42 christos Exp $"); 34 ELFTC_VCSID("Id: elf.c 2225 2011-11-26 18:55:54Z jkoshy "); 35 36 struct _libelf_globals _libelf = { 37 .libelf_error = 0, 38 .libelf_fillchar = 0, 39 .libelf_version = EV_NONE 40 }; 41 42 unsigned int 43 _libelf_host_byteorder(void) 44 { 45 static union { 46 uint32_t val; 47 uint8_t bytes[4]; 48 } byte_order_check = { 49 .val = 0xdeadbeef, 50 }; 51 52 return (byte_order_check.bytes[0] == 0xef ? ELFDATA2LSB : ELFDATA2MSB); 53 } 54