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  1. /*
  2.  * Copyright (C) 2006 Sergey Bondari
  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.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include <elf.h>
  30.  
  31. /** 32bit ELF loader
  32.  *
  33.  * @param header Pointer to ELF header in memory
  34.  * @param as Created and properly mapped address space
  35.  * @return EE_OK on success
  36.  */
  37. int elf32_load(__address header, as_t * as) {
  38.     elf32_header_t * e_header;
  39.  
  40.     e_header = (elf32_header_t *) header;
  41.    
  42.     /* Identify ELF */
  43.     if (    e_header->e_ident[EI_MAG0] != ELFMAG0 || e_header->e_ident[EI_MAG1] != ELFMAG1 ||
  44.         e_header->e_ident[EI_MAG2] != ELFMAG2 || e_header->e_ident[EI_MAG3] != ELFMAG3
  45.         ) {
  46.         return EE_INVALID;
  47.     }
  48.    
  49.     /* Identify ELF compatibility */
  50.     if (    e_header->e_ident[EI_DATA] != ELF_DATA_ENCODING || e_header->e_machine != ELF_MACHINE ||
  51.         e_header->e_ident[EI_VERSION] != EV_CURRENT || e_header->e_ident[EI_CLASS] != ELF_CLASS
  52.         ) {
  53.         return EE_UNSUPPORTED;
  54.     }
  55.    
  56.  
  57.     return EE_UNSUPPORTED; 
  58. }
  59.