12de3b87aSKai Wang /*- 22de3b87aSKai Wang * Copyright (c) 2006,2008,2011 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 <sys/cdefs.h> 282de3b87aSKai Wang 292de3b87aSKai Wang #include <libelf.h> 302de3b87aSKai Wang #include <stdio.h> 312de3b87aSKai Wang #include <string.h> 322de3b87aSKai Wang 332de3b87aSKai Wang #include "_libelf.h" 342de3b87aSKai Wang 352de3b87aSKai Wang ELFTC_VCSID("$Id: elf_errmsg.c 2225 2011-11-26 18:55:54Z jkoshy $"); 362de3b87aSKai Wang 372de3b87aSKai Wang /* 382de3b87aSKai Wang * Retrieve a human readable translation for an error message. 392de3b87aSKai Wang */ 402de3b87aSKai Wang 41*35b27010SKai Wang static const char *_libelf_errors[] = { 422de3b87aSKai Wang #define DEFINE_ERROR(N,S) [ELF_E_##N] = S 432de3b87aSKai Wang DEFINE_ERROR(NONE, "No Error"), 442de3b87aSKai Wang DEFINE_ERROR(ARCHIVE, "Malformed ar(1) archive"), 452de3b87aSKai Wang DEFINE_ERROR(ARGUMENT, "Invalid argument"), 462de3b87aSKai Wang DEFINE_ERROR(CLASS, "ELF class mismatch"), 472de3b87aSKai Wang DEFINE_ERROR(DATA, "Invalid data buffer descriptor"), 482de3b87aSKai Wang DEFINE_ERROR(HEADER, "Missing or malformed ELF header"), 492de3b87aSKai Wang DEFINE_ERROR(IO, "I/O error"), 502de3b87aSKai Wang DEFINE_ERROR(LAYOUT, "Layout constraint violation"), 512de3b87aSKai Wang DEFINE_ERROR(MODE, "Incorrect ELF descriptor mode"), 522de3b87aSKai Wang DEFINE_ERROR(RANGE, "Value out of range of target"), 532de3b87aSKai Wang DEFINE_ERROR(RESOURCE, "Resource exhaustion"), 542de3b87aSKai Wang DEFINE_ERROR(SECTION, "Invalid section descriptor"), 552de3b87aSKai Wang DEFINE_ERROR(SEQUENCE, "API calls out of sequence"), 562de3b87aSKai Wang DEFINE_ERROR(UNIMPL, "Unimplemented feature"), 572de3b87aSKai Wang DEFINE_ERROR(VERSION, "Unknown ELF API version"), 582de3b87aSKai Wang DEFINE_ERROR(NUM, "Unknown error") 592de3b87aSKai Wang #undef DEFINE_ERROR 602de3b87aSKai Wang }; 612de3b87aSKai Wang 622de3b87aSKai Wang const char * 632de3b87aSKai Wang elf_errmsg(int error) 642de3b87aSKai Wang { 652de3b87aSKai Wang int oserr; 662de3b87aSKai Wang 672de3b87aSKai Wang if (error == ELF_E_NONE && 682de3b87aSKai Wang (error = LIBELF_PRIVATE(error)) == 0) 692de3b87aSKai Wang return NULL; 702de3b87aSKai Wang else if (error == -1) 712de3b87aSKai Wang error = LIBELF_PRIVATE(error); 722de3b87aSKai Wang 732de3b87aSKai Wang oserr = error >> LIBELF_OS_ERROR_SHIFT; 742de3b87aSKai Wang error &= LIBELF_ELF_ERROR_MASK; 752de3b87aSKai Wang 762de3b87aSKai Wang if (error < ELF_E_NONE || error >= ELF_E_NUM) 772de3b87aSKai Wang return _libelf_errors[ELF_E_NUM]; 782de3b87aSKai Wang if (oserr) { 792de3b87aSKai Wang (void) snprintf(LIBELF_PRIVATE(msg), 802de3b87aSKai Wang sizeof(LIBELF_PRIVATE(msg)), "%s: %s", 812de3b87aSKai Wang _libelf_errors[error], strerror(oserr)); 822de3b87aSKai Wang return (const char *)&LIBELF_PRIVATE(msg); 832de3b87aSKai Wang } 842de3b87aSKai Wang return _libelf_errors[error]; 852de3b87aSKai Wang } 86