Tools/CodeTools/Source/PeCoffLoader/X64/PeCoffLoaderEx.c

   1 /*++
   2
   3 Copyright 2005, 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
  13 Module Name:
  14
  15   PeCoffLoaderEx.c
  16
  17 Abstract:
  18
  19   x64 Specific relocation fixups
  20
  21 Revision History
  22
  23 --*/
  24
  25 #include <Common/UefiBaseTypes.h>
  26 #include <Common/EfiImage.h>
  27 #include <Library/PeCoffLib.h>
  28
  29
  30
  31
  32 RETURN_STATUS
  33 PeCoffLoaderRelocateImageEx (
  34   IN UINT16      *Reloc,
  35   IN OUT CHAR8   *Fixup,
  36   IN OUT CHAR8   **FixupData,
  37   IN UINT64      Adjust
  38   )
  39 /*++
  40
  41 Routine Description:
  42   Performs an x64 specific relocation fixup
  43
  44 Arguments:
  45   Reloc      - Pointer to the relocation record
  46   Fixup      - Pointer to the address to fix up
  47   FixupData  - Pointer to a buffer to log the fixups
  48   Adjust     - The offset to adjust the fixup
  49
  50 Returns:
  51   None
  52
  53 --*/
  54 {
  55   UINT64      *F64;
  56
  57   switch ((*Reloc) >> 12) {
  58
  59     case EFI_IMAGE_REL_BASED_DIR64:
  60       F64 = (UINT64 *) Fixup;
  61       *F64 = *F64 + (UINT64) Adjust;
  62       if (*FixupData != NULL) {
  63         *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));
  64         *(UINT64 *)(*FixupData) = *F64;
  65         *FixupData = *FixupData + sizeof(UINT64);
  66       }
  67       break;
  68
  69     default:
  70       return RETURN_UNSUPPORTED;
  71   }
  72
  73   return RETURN_SUCCESS;
  74 }