MdeModulePkg/Application/HelloWorld/HelloWorld.c

   1 /** @file
   2   This simple application just print a "UEFI Hello World!" to the UEFI Console.
   3
   4   Copyright (c) 2006 - 2007, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include <Uefi.h>
  16 #include <Library/DebugLib.h>
  17 #include <Library/UefiLib.h>
  18 #include <Library/UefiApplicationEntryPoint.h>
  19 #include <Library/UefiBootServicesTableLib.h>
  20
  21
  22 /**
  23   The user Entry Point for Application. The user code starts with this function
  24   as the real entry point for the image goes into a library that calls this
  25   function.
  26
  27   @param[in] ImageHandle    The firmware allocated handle for the EFI image.
  28   @param[in] SystemTable    A pointer to the EFI System Table.
  29
  30   @retval EFI_SUCCESS       The entry point is executed successfully.
  31   @retval other             Some error occurs when executing this entry point.
  32
  33 **/
  34 EFI_STATUS
  35 EFIAPI
  36 UefiMain (
  37   IN EFI_HANDLE        ImageHandle,
  38   IN EFI_SYSTEM_TABLE  *SystemTable
  39   )
  40
  41 {
  42
  43   Print ((CHAR16 *)L"UEFI Hello World!\n");
  44
  45   return EFI_SUCCESS;
  46 }