MdePkg/Library/PeimEntryPoint/PeimEntryPoint.c

   1 /** @file
   2   Entry point to a PEIM.
   3
   4 Copyright (c) 2006, Intel Corporation<BR>
   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
  16 #include <PiPei.h>
  17
  18
  19 #include <Library/PeimEntryPoint.h>
  20 #include <Library/DebugLib.h>
  21
  22 /**
  23   Image entry point of Peim.
  24
  25   @param  FileHandle  Handle of the file being invoked.
  26                       Type EFI_PEI_FILE_HANDLE is defined in FfsFindNextFile().
  27   @param  PeiServices Describes the list of possible PEI Services.
  28
  29   @return  Status returned by entry points of Peims.
  30
  31 **/
  32 EFI_STATUS
  33 EFIAPI
  34 _ModuleEntryPoint (
  35   IN EFI_PEI_FILE_HANDLE       FileHandle,
  36   IN CONST EFI_PEI_SERVICES    **PeiServices
  37   )
  38 {
  39   if (_gPeimRevision != 0) {
  40     //
  41     // Make sure that the PEI spec revision of the platform is >= PEI spec revision of the driver
  42     //
  43     ASSERT ((*PeiServices)->Hdr.Revision >= _gPeimRevision);
  44   }
  45
  46   //
  47   // Call constructor for all libraries
  48   //
  49   ProcessLibraryConstructorList (FileHandle, PeiServices);
  50
  51   //
  52   // Call the driver entry point
  53   //
  54   return ProcessModuleEntryPointList (FileHandle, PeiServices);
  55 }
  56
  57
  58 /**
  59   Wrapper of Peim image entry point.
  60
  61   @param  FileHandle  Handle of the file being invoked.
  62                       Type EFI_PEI_FILE_HANDLE is defined in FfsFindNextFile().
  63   @param  PeiServices Describes the list of possible PEI Services.
  64
  65   @return  Status returned by entry points of Peims.
  66
  67 **/
  68 EFI_STATUS
  69 EFIAPI
  70 EfiMain (
  71   IN EFI_PEI_FILE_HANDLE      FileHandle,
  72   IN CONST EFI_PEI_SERVICES   **PeiServices
  73   )
  74 {
  75   return _ModuleEntryPoint (FileHandle, PeiServices);
  76 }