1/*- 2 * Copyright (c) 2006,2008-2011 Joseph Koshy 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28 29#include <assert.h> 30#include <libelf.h> 31#include <string.h> 32 33#include "_libelf.h" 34 35ELFTC_VCSID("$Id: libelf_msize.m4 2225 2011-11-26 18:55:54Z jkoshy $"); 36 37/* WARNING: GENERATED FROM __file__. */ 38 39struct msize { 40 size_t msz32; 41 size_t msz64; 42}; 43 44divert(-1) 45include(SRCDIR`/elf_types.m4') 46 47/* 48 * ELF types whose memory representations have a variable size. 49 */ 50define(BYTE_SIZE, 1) 51define(GNUHASH_SIZE, 1) 52define(NOTE_SIZE, 1) 53define(VDEF_SIZE, 1) 54define(VNEED_SIZE, 1) 55 56/* 57 * Unimplemented types. 58 */ 59define(MOVEP_SIZE, 0) 60define(SXWORD_SIZE32, 0) 61define(XWORD_SIZE32, 0) 62 63define(`DEFINE_ELF_MSIZE', 64 `ifdef($1`_SIZE', 65 `define($1_SIZE32,$1_SIZE) 66 define($1_SIZE64,$1_SIZE)', 67 `ifdef($1`_SIZE32',`', 68 `define($1_SIZE32,sizeof(Elf32_$2))') 69 ifdef($1`_SIZE64',`', 70 `define($1_SIZE64,sizeof(Elf64_$2))')')') 71define(`DEFINE_ELF_MSIZES', 72 `ifelse($#,1,`', 73 `DEFINE_ELF_MSIZE($1) 74 DEFINE_ELF_MSIZES(shift($@))')') 75 76DEFINE_ELF_MSIZES(ELF_TYPE_LIST) 77 78define(`MSIZE', 79 `[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 }, 80') 81define(`MSIZES', 82 `ifelse($#,1,`', 83 `MSIZE($1) 84MSIZES(shift($@))')') 85 86divert(0) 87 88static struct msize msize[ELF_T_NUM] = { 89MSIZES(ELF_TYPE_LIST) 90}; 91 92size_t 93_libelf_msize(Elf_Type t, int elfclass, unsigned int version) 94{ 95 size_t sz; 96 97 assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64); 98 assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST); 99 100 if (version != EV_CURRENT) { 101 LIBELF_SET_ERROR(VERSION, 0); 102 return (0); 103 } 104 105 sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64; 106 107 return (sz); 108} 109