120 lines
3.2 KiB
Plaintext
120 lines
3.2 KiB
Plaintext
/*-
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* Copyright (c) 2006,2008-2011 Joseph Koshy
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <assert.h>
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#include <libelf.h>
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#include <string.h>
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#include "_libelf.h"
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ELFTC_VCSID("$Id: libelf_msize.m4,v 1.2 2020/05/18 06:46:23 jsg Exp $");
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/* WARNING: GENERATED FROM __file__. */
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struct msize {
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size_t msz32;
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size_t msz64;
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};
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divert(-1)
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include(SRCDIR`/elf_types.m4')
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/*
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* ELF types whose memory representations have a variable size.
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*/
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define(BYTE_SIZE, 1)
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define(GNUHASH_SIZE, 1)
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define(NOTE_SIZE, 1)
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define(VDEF_SIZE, 1)
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define(VNEED_SIZE, 1)
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/*
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* Unimplemented types.
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*/
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define(MOVEP_SIZE, 0)
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define(SXWORD_SIZE32, 0)
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define(XWORD_SIZE32, 0)
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define(`DEFINE_ELF_MSIZE',
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`ifdef($1`_SIZE',
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`define($1_SIZE32,$1_SIZE)
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define($1_SIZE64,$1_SIZE)',
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`ifdef($1`_SIZE32',`',
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`define($1_SIZE32,sizeof(Elf32_$2))')
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ifdef($1`_SIZE64',`',
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`define($1_SIZE64,sizeof(Elf64_$2))')')')
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define(`DEFINE_ELF_MSIZES',
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`ifelse($#,1,`',
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`DEFINE_ELF_MSIZE($1)
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DEFINE_ELF_MSIZES(shift($@))')')
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DEFINE_ELF_MSIZES(ELF_TYPE_LIST)
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define(`MSIZE',
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`[ELF_T_$1] = { .msz32 = $1_SIZE32, .msz64 = $1_SIZE64 },
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')
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define(`MSIZES',
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`ifelse($#,1,`',
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`MSIZE($1)
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MSIZES(shift($@))')')
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divert(0)
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static struct msize msize[ELF_T_NUM] = {
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MSIZES(ELF_TYPE_LIST)
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};
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/*
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* Returns the memory size of the specified ELF type 't' of ELF
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* class 'ec' and ELF version 'version'.
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*
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* If the specified combination of ELF type, class, and version is
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* unsupported then a value of 0 will be returned and the appropriate
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* library error code set.
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*/
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size_t
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_libelf_msize(Elf_Type t, int elfclass, unsigned int version)
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{
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size_t sz;
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assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
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assert((signed) t >= ELF_T_FIRST && t <= ELF_T_LAST);
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if (version != EV_CURRENT) {
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LIBELF_SET_ERROR(VERSION, 0);
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return (0);
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}
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sz = (elfclass == ELFCLASS32) ? msize[t].msz32 : msize[t].msz64;
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if (sz == 0) {
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LIBELF_SET_ERROR(UNIMPL, 0);
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return (0);
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}
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return (sz);
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}
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