12de3b87aSKai Wang /*- 22de3b87aSKai Wang * Copyright (c) 2006,2008 Joseph Koshy 32de3b87aSKai Wang * All rights reserved. 42de3b87aSKai Wang * 52de3b87aSKai Wang * Redistribution and use in source and binary forms, with or without 62de3b87aSKai Wang * modification, are permitted provided that the following conditions 72de3b87aSKai Wang * are met: 82de3b87aSKai Wang * 1. Redistributions of source code must retain the above copyright 92de3b87aSKai Wang * notice, this list of conditions and the following disclaimer. 102de3b87aSKai Wang * 2. Redistributions in binary form must reproduce the above copyright 112de3b87aSKai Wang * notice, this list of conditions and the following disclaimer in the 122de3b87aSKai Wang * documentation and/or other materials provided with the distribution. 132de3b87aSKai Wang * 142de3b87aSKai Wang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 152de3b87aSKai Wang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 162de3b87aSKai Wang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 172de3b87aSKai Wang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 182de3b87aSKai Wang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 192de3b87aSKai Wang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 202de3b87aSKai Wang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 212de3b87aSKai Wang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 222de3b87aSKai Wang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 232de3b87aSKai Wang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 242de3b87aSKai Wang * SUCH DAMAGE. 252de3b87aSKai Wang */ 262de3b87aSKai Wang 272de3b87aSKai Wang #include <libelf.h> 282de3b87aSKai Wang 292de3b87aSKai Wang #include "_libelf.h" 302de3b87aSKai Wang 31*67d97fe7SEd Maste ELFTC_VCSID("$Id: elf_getbase.c 3174 2015-03-27 17:13:41Z emaste $"); 322de3b87aSKai Wang 332de3b87aSKai Wang off_t 342de3b87aSKai Wang elf_getbase(Elf *e) 352de3b87aSKai Wang { 362de3b87aSKai Wang if (e == NULL) { 372de3b87aSKai Wang LIBELF_SET_ERROR(ARGUMENT, 0); 382de3b87aSKai Wang return ((off_t) -1); 392de3b87aSKai Wang } 402de3b87aSKai Wang 412de3b87aSKai Wang if (e->e_parent == NULL) 422de3b87aSKai Wang return ((off_t) 0); 432de3b87aSKai Wang 442de3b87aSKai Wang return ((off_t) ((uintptr_t) e->e_rawfile - 452de3b87aSKai Wang (uintptr_t) e->e_parent->e_rawfile)); 462de3b87aSKai Wang } 47