src/arch/x86/prefix/efiprefix.c

   1 /*
   2  * Copyright (C) 2009 Michael Brown <mbrown@fensystems.co.uk>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 FILE_LICENCE ( GPL2_OR_LATER );
  20
  21 #include <stdlib.h>
  22 #include <gpxe/efi/efi.h>
  23
  24 /**
  25  * EFI entry point
  26  *
  27  * @v image_handle      Image handle
  28  * @v systab            System table
  29  * @ret efirc           EFI return status code
  30  */
  31 EFI_STATUS EFIAPI _start ( EFI_HANDLE image_handle,
  32                            EFI_SYSTEM_TABLE *systab ) {
  33         EFI_STATUS efirc;
  34
  35         /* Initialise EFI environment */
  36         if ( ( efirc = efi_init ( image_handle, systab ) ) != 0 )
  37                 return efirc;
  38
  39         /* Call to main() */
  40         return RC_TO_EFIRC ( main () );
  41 }