audk/MdePkg/Include/Library/PeCoffGetEntryPointLib.h

/** @file
  Provides a service to retrieve the PE/COFF entry point from a PE/COFF image.

Copyright (c) 2006 - 2010, Intel Corporation.  All rights reserved<BR>
This program and the accompanying materials are licensed and made available under 
the terms and conditions of the BSD License that accompanies this distribution.  
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.                                            

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

**/

#ifndef __PE_COFF_GET_ENTRY_POINT_LIB_H__
#define __PE_COFF_GET_ENTRY_POINT_LIB_H__

/**
  Retrieves and returns a pointer to the entry point to a PE/COFF image that has been loaded
  into system memory with the PE/COFF Loader Library functions.

  Retrieves the entry point to the PE/COFF image specified by Pe32Data and returns this entry
  point in EntryPoint.  If the entry point could not be retrieved from the PE/COFF image, then
  return RETURN_INVALID_PARAMETER.  Otherwise return RETURN_SUCCESS.
  If Pe32Data is NULL, then ASSERT().
  If EntryPoint is NULL, then ASSERT().

  @param  Pe32Data                  The pointer to the PE/COFF image that is loaded in system memory.
  @param  EntryPoint                The pointer to entry point to the PE/COFF image to return.

  @retval RETURN_SUCCESS            EntryPoint was returned.
  @retval RETURN_INVALID_PARAMETER  The entry point could not be found in the PE/COFF image.

**/
RETURN_STATUS
EFIAPI
PeCoffLoaderGetEntryPoint (
  IN  VOID  *Pe32Data,
  OUT VOID  **EntryPoint
  );

/**
  Returns the machine type of a PE/COFF image.

  Returns the machine type from the PE/COFF image specified by Pe32Data.
  If Pe32Data is NULL, then ASSERT().

  @param  Pe32Data   The pointer to the PE/COFF image that is loaded in system
                     memory.

  @return Machine type or zero if not a valid image.

**/
UINT16
EFIAPI
PeCoffLoaderGetMachineType (
  IN VOID  *Pe32Data
  );

/**
  Returns a pointer to the PDB file name for a PE/COFF image that has been
  loaded into system memory with the PE/COFF Loader Library functions. 

  Returns the PDB file name for the PE/COFF image specified by Pe32Data.  If
  the PE/COFF image specified by Pe32Data is not a valid, then NULL is
  returned.  If the PE/COFF image specified by Pe32Data does not contain a
  debug directory entry, then NULL is returned.  If the debug directory entry
  in the PE/COFF image specified by Pe32Data does not contain a PDB file name,
  then NULL is returned.
  If Pe32Data is NULL, then ASSERT().

  @param  Pe32Data   The pointer to the PE/COFF image that is loaded in system
                     memory.

  @return The PDB file name for the PE/COFF image specified by Pe32Data, or NULL
          if it cannot be retrieved.

**/
VOID *
EFIAPI
PeCoffLoaderGetPdbPointer (
  IN VOID  *Pe32Data
  );


/**
  Returns the size of the PE/COFF headers

  Returns the size of the PE/COFF header specified by Pe32Data.
  If Pe32Data is NULL, then ASSERT().

  @param  Pe32Data   The pointer to the PE/COFF image that is loaded in system
                     memory.

  @return Size of PE/COFF header in bytes, or zero if not a valid image.

**/
UINT32
EFIAPI
PeCoffGetSizeOfHeaders (
  IN VOID     *Pe32Data
  );

#endif