MdePkg/Library/BasePeCoffLib/x64/PeCoffLoaderEx.c

/** @file
  x64 Specific relocation fixups.

  Copyright (c) 2006, Intel Corporation
  All rights reserved. This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which 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.

  Module Name:  PeCoffLoaderEx.c

**/

/**
  Performs an x64 specific relocation fixup.

  @param  Reloc       Pointer to the relocation record
  @param  Fixup       Pointer to the address to fix up
  @param  FixupData   Pointer to a buffer to log the fixups
  @param  Adjust      The offset to adjust the fixup

**/
RETURN_STATUS
PeCoffLoaderRelocateImageEx (
  IN UINT16      *Reloc,
  IN OUT CHAR8   *Fixup, 
  IN OUT CHAR8   **FixupData,
  IN UINT64      Adjust
  )
{
  UINT64      *F64;

  switch ((*Reloc) >> 12) {

    case EFI_IMAGE_REL_BASED_DIR64:
      F64 = (UINT64 *) Fixup;
      *F64 = *F64 + (UINT64) Adjust;
      if (*FixupData != NULL) {
        *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));
        *(UINT64 *)(*FixupData) = *F64;
        *FixupData = *FixupData + sizeof(UINT64);
      }
      break;

    default:
      return RETURN_UNSUPPORTED;
  }

  return RETURN_SUCCESS;
}