Integrate the patch contributed by Andrew Fish to add ARM support.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9182 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 275 insertions, 272 deletions

diff --git a/Nt32Pkg/Library/Nt32PeiPeCoffGetEntryPointLib/PeCoffGetEntryPoint.c b/Nt32Pkg/Library/Nt32PeiPeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
index a97ed6fe12..5f89570e39 100644
--- a/Nt32Pkg/Library/Nt32PeiPeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
+++ b/Nt32Pkg/Library/Nt32PeiPeCoffGetEntryPointLib/PeCoffGetEntryPoint.c
@@ -1,272 +1,275 @@
-/**@file

-

-Copyright (c) 2006 - 2007, 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:

-

-  PeCoffGetEntryPoint.c

-

-Abstract:

-

-  Tiano PE/COFF loader

-

-Revision History

-

-**/

-

-#include <PiPei.h>

-#include <IndustryStandard/PeImage.h>

-#include <WinNtPeim.h>

-#include <Ppi/NtPeiLoadFile.h>

-#include <Library/PeCoffGetEntryPointLib.h>

-#include <Library/PeiServicesLib.h>

-#include <Library/DebugLib.h>

-

-

-RETURN_STATUS

-EFIAPI

-PeCoffLoaderGetEntryPoint (

-  IN     VOID  *Pe32Data,

-  IN OUT VOID  **EntryPoint

-  )

-/*++

-

-Routine Description:

-

-  Loads a PE/COFF image into memory, this is not follow the original purpose of 

-  PeCoffGetEntryPoint library class.  But it's ok that Unix package not run on a real 

-  platform and this is for source level debug.

-

-Arguments:

-

-  Pe32Data   - Pointer to a PE/COFF Image

-

-  EntryPoint - Pointer to the entry point of the PE/COFF image

-

-Returns:

-

-  EFI_SUCCESS            if the EntryPoint was returned

-  EFI_INVALID_PARAMETER  if the EntryPoint could not be found from Pe32Data

-

---*/

-{

-  EFI_STATUS              Status;

-  EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;

-  NT_PEI_LOAD_FILE_PPI    *PeiNtService;

-  EFI_PHYSICAL_ADDRESS    ImageAddress;

-  UINT64                  ImageSize;

-  EFI_PHYSICAL_ADDRESS    ImageEntryPoint;

-

-  ASSERT (Pe32Data   != NULL);

-  ASSERT (EntryPoint != NULL);

-

-  Status = PeiServicesLocatePpi (

-             &gNtPeiLoadFilePpiGuid,

-             0,

-             &PpiDescriptor,

-             (VOID**)&PeiNtService

-             );

-  ASSERT_EFI_ERROR (Status);

-

-  Status = PeiNtService->PeiLoadFileService (

-                           Pe32Data,

-                           &ImageAddress,

-                           &ImageSize,

-                           &ImageEntryPoint

-                           );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  *EntryPoint = (VOID*)(UINTN)ImageEntryPoint;

-  return Status;

-}

-

-/**

-  Returns the machine type of PE/COFF image. 

-  This is copied from MDE BasePeCoffGetEntryPointLib, the code should be sync with it.

-  The reason is NT32 package needs to load the image to memory to support source

-  level debug.

-   

-

-  @param  Pe32Data   Pointer to a PE/COFF header

-

-  @return            Machine type or zero if not a valid iamge

-

-**/

-UINT16

-EFIAPI

-PeCoffLoaderGetMachineType (

-  IN  VOID  *Pe32Data

-  )

-{  

-  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr;

-  EFI_IMAGE_DOS_HEADER                 *DosHdr;

-

-  ASSERT (Pe32Data   != NULL);

-

-  DosHdr = (EFI_IMAGE_DOS_HEADER  *)Pe32Data;

-  if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {

-    //

-    // DOS image header is present, so read the PE header after the DOS image header.

-    //

-    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));

-  } else {

-    //

-    // DOS image header is not present, so PE header is at the image base.

-    //

-    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;

-  }

-

-  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {

-    return Hdr.Te->Machine;

-  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE)  {

-    return Hdr.Pe32->FileHeader.Machine;

-  }

-

-  return 0x0000;

-}

-

-/**

-  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   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

-  )

-{

-  EFI_IMAGE_DOS_HEADER                  *DosHdr;

-  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION   Hdr;

-  EFI_IMAGE_DATA_DIRECTORY              *DirectoryEntry;

-  EFI_IMAGE_DEBUG_DIRECTORY_ENTRY       *DebugEntry;

-  UINTN                                 DirCount;

-  VOID                                  *CodeViewEntryPointer;

-  INTN                                  TEImageAdjust;

-  UINT32                                NumberOfRvaAndSizes;

-  UINT16                                Magic;

-

-  ASSERT (Pe32Data   != NULL);

-

-  TEImageAdjust       = 0;

-  DirectoryEntry      = NULL;

-  DebugEntry          = NULL;

-  NumberOfRvaAndSizes = 0;

-

-  DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;

-  if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {

-    //

-    // DOS image header is present, so read the PE header after the DOS image header.

-    //

-    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));

-  } else {

-    //

-    // DOS image header is not present, so PE header is at the image base.

-    //

-    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;

-  }

-

-  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {

-    if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {

-      DirectoryEntry  = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];

-      TEImageAdjust   = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;

-      DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +

-                    Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress +

-                    TEImageAdjust);

-    }

-  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {

-    //

-    // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.

-    //       It is due to backward-compatibility, for some system might

-    //       generate PE32+ image with PE32 Magic.

-    //

-    switch (Hdr.Pe32->FileHeader.Machine) {

-    case IMAGE_FILE_MACHINE_I386:

-      //

-      // Assume PE32 image with IA32 Machine field.

-      //

-      Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;

-      break;

-    case IMAGE_FILE_MACHINE_X64:

-    case IMAGE_FILE_MACHINE_IA64:

-      //

-      // Assume PE32+ image with X64 or IA64 Machine field

-      //

-      Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;

-      break;

-    default:

-      //

-      // For unknow Machine field, use Magic in optional Header

-      //

-      Magic = Hdr.Pe32->OptionalHeader.Magic;

-    }

-

-    if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {

-      //

-      // Use PE32 offset get Debug Directory Entry

-      //

-      NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;

-      DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);

-      DebugEntry     = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);

-    } else if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {

-      //

-      // Use PE32+ offset get Debug Directory Entry

-      //

-      NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;

-      DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);

-      DebugEntry     = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);

-    }

-

-    if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {

-      DirectoryEntry = NULL;

-      DebugEntry = NULL;

-    }

-  } else {

-    return NULL;

-  }

-

-  if (DebugEntry == NULL || DirectoryEntry == NULL) {

-    return NULL;

-  }

-

-  for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {

-    if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {

-      if (DebugEntry->SizeOfData > 0) {

-        CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);

-        switch (* (UINT32 *) CodeViewEntryPointer) {

-        case CODEVIEW_SIGNATURE_NB10:

-          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));

-        case CODEVIEW_SIGNATURE_RSDS:

-          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));

-        default:

-          break;

-        }

-      }

-    }

-  }

-

-  return NULL;

-}

+/**@file
+
+Copyright (c) 2006 - 2007, 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:
+
+  PeCoffGetEntryPoint.c
+
+Abstract:
+
+  Tiano PE/COFF loader
+
+Revision History
+
+**/
+
+#include <PiPei.h>
+#include <IndustryStandard/PeImage.h>
+#include <WinNtPeim.h>
+#include <Ppi/NtPeiLoadFile.h>
+#include <Library/PeCoffGetEntryPointLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/DebugLib.h>
+
+
+RETURN_STATUS
+EFIAPI
+PeCoffLoaderGetEntryPoint (
+  IN     VOID  *Pe32Data,
+  IN OUT VOID  **EntryPoint
+  )
+/*++
+
+Routine Description:
+
+  Loads a PE/COFF image into memory, this is not follow the original purpose of 
+  PeCoffGetEntryPoint library class.  But it's ok that Unix package not run on a real 
+  platform and this is for source level debug.
+
+Arguments:
+
+  Pe32Data   - Pointer to a PE/COFF Image
+
+  EntryPoint - Pointer to the entry point of the PE/COFF image
+
+Returns:
+
+  EFI_SUCCESS            if the EntryPoint was returned
+  EFI_INVALID_PARAMETER  if the EntryPoint could not be found from Pe32Data
+
+--*/
+{
+  EFI_STATUS              Status;
+  EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
+  NT_PEI_LOAD_FILE_PPI    *PeiNtService;
+  EFI_PHYSICAL_ADDRESS    ImageAddress;
+  UINT64                  ImageSize;
+  EFI_PHYSICAL_ADDRESS    ImageEntryPoint;
+
+  ASSERT (Pe32Data   != NULL);
+  ASSERT (EntryPoint != NULL);
+
+  Status = PeiServicesLocatePpi (
+             &gNtPeiLoadFilePpiGuid,
+             0,
+             &PpiDescriptor,
+             (VOID**)&PeiNtService
+             );
+  ASSERT_EFI_ERROR (Status);
+
+  Status = PeiNtService->PeiLoadFileService (
+                           Pe32Data,
+                           &ImageAddress,
+                           &ImageSize,
+                           &ImageEntryPoint
+                           );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  *EntryPoint = (VOID*)(UINTN)ImageEntryPoint;
+  return Status;
+}
+
+/**
+  Returns the machine type of PE/COFF image. 
+  This is copied from MDE BasePeCoffGetEntryPointLib, the code should be sync with it.
+  The reason is NT32 package needs to load the image to memory to support source
+  level debug.
+   
+
+  @param  Pe32Data   Pointer to a PE/COFF header
+
+  @return            Machine type or zero if not a valid iamge
+
+**/
+UINT16
+EFIAPI
+PeCoffLoaderGetMachineType (
+  IN  VOID  *Pe32Data
+  )
+{  
+  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION  Hdr;
+  EFI_IMAGE_DOS_HEADER                 *DosHdr;
+
+  ASSERT (Pe32Data   != NULL);
+
+  DosHdr = (EFI_IMAGE_DOS_HEADER  *)Pe32Data;
+  if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
+    //
+    // DOS image header is present, so read the PE header after the DOS image header.
+    //
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
+  } else {
+    //
+    // DOS image header is not present, so PE header is at the image base.
+    //
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
+  }
+
+  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
+    return Hdr.Te->Machine;
+  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE)  {
+    return Hdr.Pe32->FileHeader.Machine;
+  }
+
+  return 0x0000;
+}
+
+/**
+  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   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
+  )
+{
+  EFI_IMAGE_DOS_HEADER                  *DosHdr;
+  EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION   Hdr;
+  EFI_IMAGE_DATA_DIRECTORY              *DirectoryEntry;
+  EFI_IMAGE_DEBUG_DIRECTORY_ENTRY       *DebugEntry;
+  UINTN                                 DirCount;
+  VOID                                  *CodeViewEntryPointer;
+  INTN                                  TEImageAdjust;
+  UINT32                                NumberOfRvaAndSizes;
+  UINT16                                Magic;
+
+  ASSERT (Pe32Data   != NULL);
+
+  TEImageAdjust       = 0;
+  DirectoryEntry      = NULL;
+  DebugEntry          = NULL;
+  NumberOfRvaAndSizes = 0;
+
+  DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
+  if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
+    //
+    // DOS image header is present, so read the PE header after the DOS image header.
+    //
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
+  } else {
+    //
+    // DOS image header is not present, so PE header is at the image base.
+    //
+    Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
+  }
+
+  if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
+    if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {
+      DirectoryEntry  = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];
+      TEImageAdjust   = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;
+      DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +
+                    Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress +
+                    TEImageAdjust);
+    }
+  } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
+    //
+    // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.
+    //       It is due to backward-compatibility, for some system might
+    //       generate PE32+ image with PE32 Magic.
+    //
+    switch (Hdr.Pe32->FileHeader.Machine) {
+    case IMAGE_FILE_MACHINE_I386:
+      //
+      // Assume PE32 image with IA32 Machine field.
+      //
+      Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
+      break;
+    case IMAGE_FILE_MACHINE_X64:
+    case IMAGE_FILE_MACHINE_IA64:
+      //
+      // Assume PE32+ image with X64 or IA64 Machine field
+      //
+      Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
+      break;
+    default:
+      //
+      // For unknow Machine field, use Magic in optional Header
+      //
+      Magic = Hdr.Pe32->OptionalHeader.Magic;
+    }
+
+    if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+      //
+      // Use PE32 offset get Debug Directory Entry
+      //
+      NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
+      DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
+      DebugEntry     = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);
+    } else if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
+      //
+      // Use PE32+ offset get Debug Directory Entry
+      //
+      NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
+      DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
+      DebugEntry     = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);
+    }
+
+    if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {
+      DirectoryEntry = NULL;
+      DebugEntry = NULL;
+    }
+  } else {
+    return NULL;
+  }
+
+  if (DebugEntry == NULL || DirectoryEntry == NULL) {
+    return NULL;
+  }
+
+  for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {
+    if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
+      if (DebugEntry->SizeOfData > 0) {
+        CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);
+        switch (* (UINT32 *) CodeViewEntryPointer) {
+        case CODEVIEW_SIGNATURE_NB10:
+          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));
+        case CODEVIEW_SIGNATURE_RSDS:
+          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));
+        case CODEVIEW_SIGNATURE_MTOC:              
+          return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));
+          break;
+        default:
+          break;
+        }
+      }
+    }
+  }
+
+  return NULL;
+}