EdkNt32Pkg/Library/EdkNt32PeiPeCoffGetEntryPointLib/PeCoffGetEntryPoint.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   PeCoffGetEntryPoint.c
  15
  16 Abstract:
  17
  18   Tiano PE/COFF loader
  19
  20 Revision History
  21
  22 --*/
  23
  24
  25 RETURN_STATUS
  26 EFIAPI
  27 PeCoffLoaderGetEntryPoint (
  28   IN     VOID  *Pe32Data,
  29   IN OUT VOID  **EntryPoint
  30   )
  31 /*++
  32
  33 Routine Description:
  34
  35   Loads a PE/COFF image into memory
  36
  37 Arguments:
  38
  39   Pe32Data   - Pointer to a PE/COFF Image
  40
  41   EntryPoint - Pointer to the entry point of the PE/COFF image
  42
  43 Returns:
  44
  45   EFI_SUCCESS            if the EntryPoint was returned
  46   EFI_INVALID_PARAMETER  if the EntryPoint could not be found from Pe32Data
  47
  48 --*/
  49 {
  50   EFI_STATUS              Status;
  51   EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  52   NT_PEI_LOAD_FILE_PPI    *PeiNtService;
  53   EFI_PHYSICAL_ADDRESS    ImageAddress;
  54   UINT64                  ImageSize;
  55   EFI_PHYSICAL_ADDRESS    ImageEntryPoint;
  56
  57   Status = PeiCoreLocatePpi (
  58              &gNtPeiLoadFilePpiGuid,
  59              0,
  60              &PpiDescriptor,
  61              &PeiNtService
  62              );
  63   if (EFI_ERROR (Status)) {
  64     return Status;
  65   }
  66
  67   Status = PeiNtService->PeiLoadFileService (
  68                            Pe32Data,
  69                            &ImageAddress,
  70                            &ImageSize,
  71                            &ImageEntryPoint
  72                            );
  73   *EntryPoint = (VOID*)(UINTN)ImageEntryPoint;
  74   return Status;
  75 }