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/*-
* Copyright (c) 2018 Joseph Koshy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <assert.h>
#include <libelf.h>
#include "_libelf.h"
ELFTC_VCSID("$Id: libelf_elfmachine.c,v 1.1 2019/02/01 05:27:38 jsg Exp $");
/*
* A convenience helper that returns the ELF machine architecture for
* a ELF descriptor.
*/
int
_libelf_elfmachine(Elf *e)
{
Elf32_Ehdr *eh32;
Elf64_Ehdr *eh64;
if (!e)
return EM_NONE;
assert(e->e_kind == ELF_K_ELF);
assert(e->e_class != ELFCLASSNONE);
eh32 = NULL;
eh64 = NULL;
switch (e->e_class) {
case ELFCLASS32:
eh32 = e->e_u.e_elf.e_ehdr.e_ehdr32;
return eh32 ? eh32->e_machine : EM_NONE;
case ELFCLASS64:
eh64 = e->e_u.e_elf.e_ehdr.e_ehdr64;
return eh64 ? eh64->e_machine : EM_NONE;
}
return (EM_NONE);
}
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