source: mainline/generic/src/lib/elf32.c@ d0da921

/*
 * Copyright (C) 2006 Sergey Bondari
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 <elf.h>

/** 32bit ELF loader
 *
 * @param header Pointer to ELF header in memory
 * @param as Created and properly mapped address space
 * @return EE_OK on success
 */
int elf32_load(__address header, as_t * as) {
        elf32_header_t * e_header;

        e_header = (elf32_header_t *) header;
        
        /* Identify ELF */
        if (    e_header->e_ident[EI_MAG0] != ELFMAG0 || e_header->e_ident[EI_MAG1] != ELFMAG1 || 
                e_header->e_ident[EI_MAG2] != ELFMAG2 || e_header->e_ident[EI_MAG3] != ELFMAG3
                ) {
                return EE_INVALID;
        }
        
        /* Identify ELF compatibility */
        if (    e_header->e_ident[EI_DATA] != ELF_DATA_ENCODING || e_header->e_machine != ELF_MACHINE || 
                e_header->e_ident[EI_VERSION] != EV_CURRENT || e_header->e_ident[EI_CLASS] != ELF_CLASS
                ) {
                return EE_UNSUPPORTED;
        }
        

        return EE_UNSUPPORTED;  
}