MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.c

   1 /** @file
   2   Entry point to the DXE Core.
   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 <PiDxe.h>
  17
  18
  19 #include <Library/DxeCoreEntryPoint.h>
  20 #include <Library/DebugLib.h>
  21 #include <Library/BaseLib.h>
  22
  23 //
  24 // Cache copy of HobList pointer.
  25 //
  26 VOID *gHobList = NULL;
  27
  28 /**
  29   The entry point of PE/COFF Image for the DXE Core.
  30
  31   This function is the entry point for the DXE Core.  This function is required
  32   to call ProcessModuleEntryPointList() and ProcessModuleEntryPointList() is never
  33   expected to return.  The DXE Core is responsible for calling ProcessLibraryConstructorList()
  34   as soon as the EFI System Table and the image handle for the DXE Core itself have
  35   been established.
  36   If ProcessModuleEntryPointList() returns, then ASSERT() and halt the system.
  37
  38   @param  HobStart  Pointer to the beginning of the HOB List passed in from the PEI Phase.
  39
  40 **/
  41 VOID
  42 EFIAPI
  43 _ModuleEntryPoint (
  44   IN VOID  *HobStart
  45   )
  46 {
  47   //
  48   // Cache a pointer to the HobList
  49   //
  50   gHobList = HobStart;
  51
  52   //
  53   // Call the DXE Core entry point
  54   //
  55   ProcessModuleEntryPointList (HobStart);
  56
  57   //
  58   // Should never return
  59   //
  60   ASSERT(FALSE);
  61   CpuDeadLoop ();
  62 }
  63
  64
  65 /**
  66   Required by the EBC compiler and identical in functionality to _ModuleEntryPoint().
  67
  68   This function is required to call _ModuleEntryPoint() passing in HobStart.
  69
  70   @param  HobStart  Pointer to the beginning of the HOB List passed in from the PEI Phase.
  71
  72 **/
  73 VOID
  74 EFIAPI
  75 EfiMain (
  76   IN VOID  *HobStart
  77   )
  78 {
  79   _ModuleEntryPoint (HobStart);
  80 }