From: Hess Chen <hesheng.chen@intel.com>
Date: Fri, 15 Aug 2014 03:06:48 +0000 (+0000)
Subject: There is a limitation on WINDOWS OS for the length of entire file path can’t be large... 
X-Git-Tag: edk2-stable201903~11186
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=1be2ed90a20618d71ddf34b8a07d038da0b36854

There is a limitation on WINDOWS OS for the length of entire file path can’t be larger than 255. There is an OS API provided by Microsoft to add “\\?\” before the path header to support the long file path. Enable this feature on basetools.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hess Chen <hesheng.chen@intel.com>
Reviewed-by: Yingke Liu <yingke.d.liu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15809 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/BaseTools/Source/C/BootSectImage/bootsectimage.c b/BaseTools/Source/C/BootSectImage/bootsectimage.c
index 36e896e5c4..fd367c28b3 100644
--- a/BaseTools/Source/C/BootSectImage/bootsectimage.c
+++ b/BaseTools/Source/C/BootSectImage/bootsectimage.c
@@ -4,7 +4,7 @@ Abstract:
   Patch the BPB information in boot sector image file.
   Patch the MBR code in MBR image file.
 
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -116,7 +116,7 @@ Return:
   FILE *FileHandle;
   int  result;
 
-  FileHandle = fopen (FileName, "r+b");
+  FileHandle = fopen (LongFilePath (FileName), "r+b");
   if (FileHandle == NULL) {
     DebugMsg (NULL, 0, DEBUG_ERROR, NULL, "Open file: %s", FileName);
     return 0;
@@ -154,7 +154,7 @@ Return:
   FILE *FileHandle;
   int  result;
 
-  FileHandle = fopen (FileName, "rb");
+  FileHandle = fopen (LongFilePath (FileName), "rb");
   if (FileHandle == NULL) {
     DebugMsg (NULL, 0, DEBUG_ERROR, NULL, "ERROR: E0001: Error opening file: %s", FileName);
     return 0;
diff --git a/BaseTools/Source/C/Common/CommonLib.c b/BaseTools/Source/C/Common/CommonLib.c
index cb72e2723f..981c04f34b 100644
--- a/BaseTools/Source/C/Common/CommonLib.c
+++ b/BaseTools/Source/C/Common/CommonLib.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -23,6 +23,11 @@ Abstract:
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
+#ifdef __GNUC__
+#include <unistd.h>
+#else
+#include <direct.h>
+#endif
 #include "CommonLib.h"
 #include "EfiUtilityMsgs.h"
 
@@ -196,7 +201,7 @@ Returns:
   //
   // Open the file
   //
-  InputFile = fopen (InputFileName, "rb");
+  InputFile = fopen (LongFilePath (InputFileName), "rb");
   if (InputFile == NULL) {
     Error (NULL, 0, 0001, "Error opening the input file", InputFileName);
     return EFI_ABORTED;
@@ -297,7 +302,7 @@ Returns:
   //
   // Open the file
   //
-  OutputFile = fopen (OutputFileName, "wb");
+  OutputFile = fopen (LongFilePath (OutputFileName), "wb");
   if (OutputFile == NULL) {
     Error (NULL, 0, 0001, "Error opening the output file", OutputFileName);
     return EFI_ABORTED;
@@ -582,3 +587,124 @@ char *strlwr(char *s)
 }
 #endif
 #endif
+
+#define WINDOWS_EXTENSION_PATH "\\\\?\\"
+#define WINDOWS_UNC_EXTENSION_PATH "\\\\?\\UNC"
+
+//
+// Global data to store full file path. It is not required to be free. 
+//
+CHAR8 mCommonLibFullPath[MAX_LONG_FILE_PATH];
+
+CHAR8 *
+LongFilePath (
+ IN CHAR8 *FileName
+ )
+/*++
+
+Routine Description:
+  Convert FileName to the long file path, which can support larger than 260 length. 
+
+Arguments:
+  FileName         - FileName. 
+
+Returns:
+  LongFilePath      A pointer to the converted long file path.
+  
+--*/
+{
+#ifdef __GNUC__
+  //
+  // __GNUC__ may not be good way to differentiate unix and windows. Need more investigation here. 
+  // unix has no limitation on file path. Just return FileName. 
+  //
+  return FileName;
+#else
+  CHAR8 *RootPath;
+  CHAR8 *PathPointer;
+  CHAR8 *NextPointer;
+  
+  PathPointer = (CHAR8 *) FileName;
+  
+  if (FileName != NULL) {
+    //
+    // Add the extension string first to support long file path. 
+    //
+    mCommonLibFullPath[0] = 0;
+    strcpy (mCommonLibFullPath, WINDOWS_EXTENSION_PATH);
+
+    if (strlen (FileName) > 1 && FileName[0] == '\\' && FileName[1] == '\\') {
+      //
+      // network path like \\server\share to \\?\UNC\server\share
+      //
+      strcpy (mCommonLibFullPath, WINDOWS_UNC_EXTENSION_PATH);
+      FileName ++;
+    } else if (strlen (FileName) < 3 || FileName[1] != ':' || (FileName[2] != '\\' && FileName[2] != '/')) {
+      //
+      // Relative file path. Convert it to absolute path. 
+      //
+      RootPath = getcwd (NULL, 0);
+      if (RootPath != NULL) {
+        strcat (mCommonLibFullPath, RootPath);
+        if (FileName[0] != '\\' && FileName[0] != '/') {
+          //
+          // Attach directory separator
+          //
+          strcat (mCommonLibFullPath, "\\");
+        }
+        free (RootPath);
+      }
+    }
+
+    //
+    // Construct the full file path
+    //
+    strcat (mCommonLibFullPath, FileName);
+    
+    //
+    // Convert directory separator '/' to '\\'
+    //
+    PathPointer = (CHAR8 *) mCommonLibFullPath;
+    do {
+      if (*PathPointer == '/') {
+        *PathPointer = '\\';
+      }
+    } while (*PathPointer ++ != '\0');
+    
+    //
+    // Convert "\\.\\" to "\\", because it doesn't work with WINDOWS_EXTENSION_PATH.
+    //
+    while ((PathPointer = strstr (mCommonLibFullPath, "\\.\\")) != NULL) {
+      *PathPointer = '\0';
+      strcat (mCommonLibFullPath, PathPointer + 2);
+    }
+    
+    //
+    // Convert "\\..\\" to last directory, because it doesn't work with WINDOWS_EXTENSION_PATH.
+    //
+    while ((PathPointer = strstr (mCommonLibFullPath, "\\..\\")) != NULL) {
+      NextPointer = PathPointer + 3;
+      do {
+        PathPointer --;
+      } while (PathPointer > mCommonLibFullPath && *PathPointer != ':' && *PathPointer != '\\');
+
+      if (*PathPointer == '\\') {
+        //
+        // Skip one directory
+        //
+        *PathPointer = '\0';
+        strcat (mCommonLibFullPath, NextPointer);
+      } else {
+        //
+        // No directory is found. Just break.
+        //
+        break;
+      }
+    }
+    
+    PathPointer = mCommonLibFullPath;
+  }
+  
+  return PathPointer;
+#endif
+}
diff --git a/BaseTools/Source/C/Common/CommonLib.h b/BaseTools/Source/C/Common/CommonLib.h
index 0610b21ed0..2c1db759b0 100644
--- a/BaseTools/Source/C/Common/CommonLib.h
+++ b/BaseTools/Source/C/Common/CommonLib.h
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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
 which accompanies this distribution.  The full text of the license may be found at
@@ -25,6 +25,12 @@ Abstract:
 #include <Common/UefiBaseTypes.h>
 #include <Common/BuildVersion.h>
 #define PRINTED_GUID_BUFFER_SIZE  37  // including null-termination
+
+#define MAX_LONG_FILE_PATH 500
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 //
 // Function declarations
 //
@@ -145,6 +151,27 @@ PrintGuidToBuffer (
   )
 ;
 
+CHAR8 *
+LongFilePath (
+ IN CHAR8 *FileName
+);
+/*++
+
+Routine Description:
+  Convert FileName to the long file path, which can support larger than 260 length. 
+
+Arguments:
+  FileName         - FileName. 
+
+Returns:
+  LongFilePath      A pointer to the converted long file path.
+  
+--*/
+
+#ifdef __cplusplus
+}
+#endif
+
 #define ASSERT(x) assert(x)
 
 #ifdef __GNUC__
diff --git a/BaseTools/Source/C/Common/MemoryFile.h b/BaseTools/Source/C/Common/MemoryFile.h
index baab40baa2..0568fed5f2 100644
--- a/BaseTools/Source/C/Common/MemoryFile.h
+++ b/BaseTools/Source/C/Common/MemoryFile.h
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -26,10 +26,6 @@ Abstract:
 #include <stdlib.h>
 #include <Common/UefiBaseTypes.h>
 
-#ifndef _MAX_PATH
-#define _MAX_PATH 500
-#endif
-
 //
 // Common data structures
 //
diff --git a/BaseTools/Source/C/Common/OsPath.c b/BaseTools/Source/C/Common/OsPath.c
index 419c8f8b8c..07b47f09b4 100644
--- a/BaseTools/Source/C/Common/OsPath.c
+++ b/BaseTools/Source/C/Common/OsPath.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2007 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -22,6 +22,7 @@ Abstract:
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include "CommonLib.h"
 #include "OsPath.h"
 
 //
@@ -294,7 +295,7 @@ Returns:
 --*/
 {
   FILE    *InputFile;
-  InputFile = fopen (InputFileName, "rb");
+  InputFile = fopen (LongFilePath (InputFileName), "rb");
   if (InputFile == NULL) {
     return FALSE;
   } else {
diff --git a/BaseTools/Source/C/Common/ParseInf.c b/BaseTools/Source/C/Common/ParseInf.c
index 385758f836..00ae0e65a1 100644
--- a/BaseTools/Source/C/Common/ParseInf.c
+++ b/BaseTools/Source/C/Common/ParseInf.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -25,6 +25,7 @@ Abstract:
 #include <stdlib.h>
 #include "EfiUtilityMsgs.h"
 #include "ParseInf.h"
+#include "CommonLib.h"
 
 CHAR8 *
 ReadLine (
@@ -46,7 +47,7 @@ Routine Description:
 Arguments:
 
   InputFile     Memory file image.
-  InputBuffer   Buffer to read into, must be _MAX_PATH size.
+  InputBuffer   Buffer to read into, must be MaxLength size.
   MaxLength     The maximum size of the input buffer.
 
 Returns:
@@ -165,7 +166,7 @@ Returns:
 
 --*/
 {
-  CHAR8 InputBuffer[_MAX_PATH];
+  CHAR8 InputBuffer[MAX_LONG_FILE_PATH];
   CHAR8 *CurrentToken;
 
   //
@@ -188,7 +189,7 @@ Returns:
     //
     // Read a line
     //
-    ReadLine (InputFile, InputBuffer, _MAX_PATH);
+    ReadLine (InputFile, InputBuffer, MAX_LONG_FILE_PATH);
 
     //
     // Check if the section is found
@@ -222,7 +223,7 @@ Arguments:
   Section   The section to search for, a string within [].
   Token     The token to search for, e.g. EFI_PEIM_RECOVERY, followed by an = in the INF file.
   Instance  The instance of the token to search for.  Zero is the first instance.
-  Value     The string that holds the value following the =.  Must be _MAX_PATH in size.
+  Value     The string that holds the value following the =.  Must be MAX_LONG_FILE_PATH in size.
 
 Returns:
 
@@ -234,7 +235,7 @@ Returns:
 
 --*/
 {
-  CHAR8   InputBuffer[_MAX_PATH];
+  CHAR8   InputBuffer[MAX_LONG_FILE_PATH];
   CHAR8   *CurrentToken;
   CHAR8   *Delimiter;
   BOOLEAN ParseError;
@@ -274,7 +275,7 @@ Returns:
       //
       // Read a line from the file
       //
-      if (ReadLine (InputFile, InputBuffer, _MAX_PATH) == NULL) {
+      if (ReadLine (InputFile, InputBuffer, MAX_LONG_FILE_PATH) == NULL) {
         //
         // Error reading from input file
         //
@@ -604,7 +605,7 @@ Routine Description:
 Arguments:
 
   InputFile     Stream pointer.
-  InputBuffer   Buffer to read into, must be _MAX_PATH size.
+  InputBuffer   Buffer to read into, must be MAX_LONG_FILE_PATH size.
 
 Returns:
 
@@ -624,7 +625,7 @@ Returns:
   //
   // Read a line
   //
-  if (fgets (InputBuffer, _MAX_PATH, InputFile) == NULL) {
+  if (fgets (InputBuffer, MAX_LONG_FILE_PATH, InputFile) == NULL) {
     return NULL;
   }
   //
@@ -670,7 +671,7 @@ Returns:
 
 --*/
 {
-  CHAR8 InputBuffer[_MAX_PATH];
+  CHAR8 InputBuffer[MAX_LONG_FILE_PATH];
   CHAR8 *CurrentToken;
 
   //
diff --git a/BaseTools/Source/C/Common/ParseInf.h b/BaseTools/Source/C/Common/ParseInf.h
index dfd180db74..6215ea2e78 100644
--- a/BaseTools/Source/C/Common/ParseInf.h
+++ b/BaseTools/Source/C/Common/ParseInf.h
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -27,10 +27,6 @@ Abstract:
 #include <Common/UefiBaseTypes.h>
 #include <MemoryFile.h>
 
-#ifndef _MAX_PATH
-#define _MAX_PATH 500
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -59,7 +55,7 @@ Routine Description:
 Arguments:
 
   InputFile     Memory file image.
-  InputBuffer   Buffer to read into, must be _MAX_PATH size.
+  InputBuffer   Buffer to read into, must be MaxLength size.
   MaxLength     The maximum size of the input buffer.
 
 Returns:
@@ -115,7 +111,7 @@ Arguments:
   Section   The section to search for, a string within [].
   Token     The token to search for, e.g. EFI_PEIM_RECOVERY, followed by an = in the INF file.
   Instance  The instance of the token to search for.  Zero is the first instance.
-  Value     The string that holds the value following the =.  Must be _MAX_PATH in size.
+  Value     The string that holds the value following the =.  Must be MAX_LONG_FILE_PATH in size.
 
 Returns:
 
@@ -196,7 +192,7 @@ Routine Description:
 Arguments:
 
   InputFile     Stream pointer.
-  InputBuffer   Buffer to read into, must be _MAX_PATH size.
+  InputBuffer   Buffer to read into, must be MAX_LONG_FILE_PATH size.
 
 Returns:
 
diff --git a/BaseTools/Source/C/Common/SimpleFileParsing.c b/BaseTools/Source/C/Common/SimpleFileParsing.c
index 0f6151819c..3978e6ed3c 100644
--- a/BaseTools/Source/C/Common/SimpleFileParsing.c
+++ b/BaseTools/Source/C/Common/SimpleFileParsing.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -24,6 +24,7 @@ Abstract:
 #include <stdlib.h>
 #include <ctype.h>
 
+#include "CommonLib.h"
 #include "EfiUtilityMsgs.h"
 #include "SimpleFileParsing.h"
 
@@ -650,7 +651,7 @@ Returns:
   // Try to open the file locally, and if that fails try along our include paths.
   //
   strcpy (FoundFileName, SourceFile->FileName);
-  if ((SourceFile->Fptr = fopen (FoundFileName, "rb")) == NULL) {
+  if ((SourceFile->Fptr = fopen (LongFilePath (FoundFileName), "rb")) == NULL) {
     return STATUS_ERROR;
   }
   //
diff --git a/BaseTools/Source/C/EfiLdrImage/EfiLdrImage.c b/BaseTools/Source/C/EfiLdrImage/EfiLdrImage.c
index f83c532b25..a76102cbb3 100644
--- a/BaseTools/Source/C/EfiLdrImage/EfiLdrImage.c
+++ b/BaseTools/Source/C/EfiLdrImage/EfiLdrImage.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -84,7 +84,7 @@ Returns:
 --*/
 {
   printf ("%s v%d.%d %s -Utility to break a file into two pieces at the request offset.\n", UTILITY_NAME, UTILITY_MAJOR_VERSION, UTILITY_MINOR_VERSION, __BUILD_VERSION);
-  printf ("Copyright (c) 1999-2010 Intel Corporation. All rights reserved.\n");
+  printf ("Copyright (c) 1999-2014 Intel Corporation. All rights reserved.\n");
 }
 
 VOID
@@ -270,7 +270,7 @@ Returns:
     return STATUS_ERROR;
   }
 
-  fpOut = fopen(OutputFileName, "w+b");
+  fpOut = fopen (LongFilePath (OutputFileName), "w+b");
   if (!fpOut) {
     Error (NULL, 0, 0001, "Could not open output file", OutputFileName);
     return STATUS_ERROR;
@@ -294,7 +294,7 @@ Returns:
     //
     // Copy the content of PeImage file to output file
     //
-    fpIn = fopen (InputFileNames[i], "rb");
+    fpIn = fopen (LongFilePath (InputFileNames[i]), "rb");
     if (!fpIn) {
       Error (NULL, 0, 0001, "Could not open input file", InputFileNames[i]);
       fclose (fpOut);
diff --git a/BaseTools/Source/C/EfiRom/EfiRom.c b/BaseTools/Source/C/EfiRom/EfiRom.c
index 9f7da8017c..838ee25cba 100644
--- a/BaseTools/Source/C/EfiRom/EfiRom.c
+++ b/BaseTools/Source/C/EfiRom/EfiRom.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 1999 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 1999 - 2014, 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 which accompanies this 
 distribution.  The full text of the license may be found at
@@ -135,7 +135,7 @@ Returns:
   //
   // Now open our output file
   //
-  if ((FptrOut = fopen (mOptions.OutFileName, "wb")) == NULL) {
+  if ((FptrOut = fopen (LongFilePath (mOptions.OutFileName), "wb")) == NULL) {
     Error (NULL, 0, 0001, "Error opening file", "Error opening file %s", mOptions.OutFileName);
     goto BailOut;
   }
@@ -246,7 +246,7 @@ Returns:
   //
   // Try to open the input file
   //
-  if ((InFptr = fopen (InFile->FileName, "rb")) == NULL) {
+  if ((InFptr = fopen (LongFilePath (InFile->FileName), "rb")) == NULL) {
     Error (NULL, 0, 0001, "Error opening file", InFile->FileName);
     return STATUS_ERROR;
   }
@@ -460,7 +460,7 @@ Returns:
   //
   // Try to open the input file
   //
-  if ((InFptr = fopen (InFile->FileName, "rb")) == NULL) {
+  if ((InFptr = fopen (LongFilePath (InFile->FileName), "rb")) == NULL) {
     Error (NULL, 0, 0001, "Open file error", "Error opening file: %s", InFile->FileName);
     return STATUS_ERROR;
   }
@@ -1230,7 +1230,7 @@ Returns:
   //
   // Copyright declaration
   // 
-  fprintf (stdout, "Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.\n\n");
+  fprintf (stdout, "Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.\n\n");
 
   //
   // Details Option
@@ -1300,7 +1300,7 @@ Returns:
   //
   // Open the input file
   //
-  if ((InFptr = fopen (InFile->FileName, "rb")) == NULL) {
+  if ((InFptr = fopen (LongFilePath (InFile->FileName), "rb")) == NULL) {
     Error (NULL, 0, 0001, "Error opening file", InFile->FileName);
     return ;
   }
diff --git a/BaseTools/Source/C/GenBootSector/GenBootSector.c b/BaseTools/Source/C/GenBootSector/GenBootSector.c
index f102ee139a..6ca86ae555 100644
--- a/BaseTools/Source/C/GenBootSector/GenBootSector.c
+++ b/BaseTools/Source/C/GenBootSector/GenBootSector.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -632,7 +632,7 @@ GetPathInfo (
     //
     // If path is file path, check whether file is valid.
     //
-    f = fopen (PathInfo->Path, "r");
+    f = fopen (LongFilePath (PathInfo->Path), "r");
     if (f == NULL) {
       fprintf (stderr, "error E2003: File was not provided!\n");
       return ErrorPath;
diff --git a/BaseTools/Source/C/GenCrc32/GenCrc32.c b/BaseTools/Source/C/GenCrc32/GenCrc32.c
index 8ece9a8412..a2ff5880d5 100644
--- a/BaseTools/Source/C/GenCrc32/GenCrc32.c
+++ b/BaseTools/Source/C/GenCrc32/GenCrc32.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -282,7 +282,7 @@ Returns:
   //
   // Open Input file and read file data.
   //
-  InFile = fopen (InputFileName, "rb");
+  InFile = fopen (LongFilePath (InputFileName), "rb");
   if (InFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", InputFileName);
     return STATUS_ERROR;
@@ -305,7 +305,7 @@ Returns:
   //
   // Open output file
   //
-  OutFile = fopen (OutputFileName, "wb");
+  OutFile = fopen (LongFilePath (OutputFileName), "wb");
   if (OutFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", OutputFileName);
     goto Finish;
diff --git a/BaseTools/Source/C/GenFfs/GenFfs.c b/BaseTools/Source/C/GenFfs/GenFfs.c
index 6f4804e90a..765c0b27da 100644
--- a/BaseTools/Source/C/GenFfs/GenFfs.c
+++ b/BaseTools/Source/C/GenFfs/GenFfs.c
@@ -1,6 +1,6 @@
 /**
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -119,7 +119,7 @@ Returns:
   //
   // Copyright declaration
   // 
-  fprintf (stdout, "Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.\n\n");
+  fprintf (stdout, "Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.\n\n");
 
   //
   // Details Option
@@ -317,7 +317,7 @@ Returns:
     // 
     // Open file and read contents
     //
-    InFile = fopen (InputFileName[Index], "rb");
+    InFile = fopen (LongFilePath (InputFileName[Index]), "rb");
     if (InFile == NULL) {
       Error (NULL, 0, 0001, "Error opening file", InputFileName[Index]);
       return EFI_ABORTED;
diff --git a/BaseTools/Source/C/GenFv/GenFv.c b/BaseTools/Source/C/GenFv/GenFv.c
index 8f837d2695..56c52b850f 100644
--- a/BaseTools/Source/C/GenFv/GenFv.c
+++ b/BaseTools/Source/C/GenFv/GenFv.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -97,7 +97,7 @@ Returns:
   //
   // Copyright declaration
   // 
-  fprintf (stdout, "Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.\n\n");
+  fprintf (stdout, "Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.\n\n");
 
   //
   // Details Option
@@ -603,7 +603,7 @@ Returns:
     if (OutFileName == NULL) {
       FpFile = stdout;
     } else {
-      FpFile = fopen (OutFileName, "w");
+      FpFile = fopen (LongFilePath (OutFileName), "w");
       if (FpFile == NULL) {
         Error (NULL, 0, 0001, "Error opening file", OutFileName);
         return STATUS_ERROR;
@@ -672,7 +672,7 @@ Returns:
   //  update boot driver address and runtime driver address in address file
   //
   if (Status == EFI_SUCCESS && AddrFileName != NULL && mFvBaseAddressNumber > 0) {
-    FpFile = fopen (AddrFileName, "w");
+    FpFile = fopen (LongFilePath (AddrFileName), "w");
     if (FpFile == NULL) {
       Error (NULL, 0, 0001, "Error opening file", AddrFileName);
       return STATUS_ERROR;
diff --git a/BaseTools/Source/C/GenFv/GenFvInternalLib.c b/BaseTools/Source/C/GenFv/GenFvInternalLib.c
index 0522cf4254..6ac542d6c0 100644
--- a/BaseTools/Source/C/GenFv/GenFvInternalLib.c
+++ b/BaseTools/Source/C/GenFv/GenFvInternalLib.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
 Portions Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
 This program and the accompanying materials                          
 are licensed and made available under the terms and conditions of the BSD License         
@@ -187,7 +187,7 @@ Returns:
   EFI_NOT_FOUND     A required string was not found in the INF file.
 --*/
 {
-  CHAR8       Value[_MAX_PATH];
+  CHAR8       Value[MAX_LONG_FILE_PATH];
   UINT64      Value64;
   UINTN       Index;
   UINTN       Number;
@@ -730,7 +730,7 @@ Returns:
 
 --*/
 {
-  CHAR8                               PeMapFileName [_MAX_PATH];
+  CHAR8                               PeMapFileName [MAX_LONG_FILE_PATH];
   CHAR8                               *Cptr, *Cptr2;
   CHAR8                               FileGuidName [MAX_LINE_LEN];
   FILE                                *PeMapFile;
@@ -866,7 +866,7 @@ Returns:
   //
   // Open PeMapFile
   //
-  PeMapFile = fopen (PeMapFileName, "r");
+  PeMapFile = fopen (LongFilePath (PeMapFileName), "r");
   if (PeMapFile == NULL) {
     // fprintf (stdout, "can't open %s file to reading\n", PeMapFileName);
     return EFI_ABORTED;
@@ -992,7 +992,7 @@ Returns:
   //
   // Read the file to add
   //
-  NewFile = fopen (FvInfo->FvFiles[Index], "rb");
+  NewFile = fopen (LongFilePath (FvInfo->FvFiles[Index]), "rb");
 
   if (NewFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", FvInfo->FvFiles[Index]);
@@ -2077,12 +2077,12 @@ Returns:
   UINT8                           *FvImage;
   UINTN                           FvImageSize;
   FILE                            *FvFile;
-  CHAR8                           FvMapName [_MAX_PATH];
+  CHAR8                           FvMapName [MAX_LONG_FILE_PATH];
   FILE                            *FvMapFile;
   EFI_FIRMWARE_VOLUME_EXT_HEADER  *FvExtHeader;
   FILE                            *FvExtHeaderFile;
   UINTN                           FileSize;
-  CHAR8                           FvReportName[_MAX_PATH];
+  CHAR8                           FvReportName[MAX_LONG_FILE_PATH];
   FILE                            *FvReportFile;
 
   FvBufferHeader = NULL;
@@ -2152,7 +2152,7 @@ Returns:
     //
     // Open the FV Extension Header file
     //
-    FvExtHeaderFile = fopen (mFvDataInfo.FvExtHeaderFile, "rb");
+    FvExtHeaderFile = fopen (LongFilePath (mFvDataInfo.FvExtHeaderFile), "rb");
 
     //
     // Get the file size
@@ -2343,7 +2343,7 @@ Returns:
   //
   // Open FvMap file
   //
-  FvMapFile = fopen (FvMapName, "w");
+  FvMapFile = fopen (LongFilePath (FvMapName), "w");
   if (FvMapFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", FvMapName);
     return EFI_ABORTED;
@@ -2352,7 +2352,7 @@ Returns:
   //
   // Open FvReport file
   //
-  FvReportFile = fopen(FvReportName, "w");
+  FvReportFile = fopen (LongFilePath (FvReportName), "w");
   if (FvReportFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", FvReportName);
     return EFI_ABORTED;
@@ -2484,7 +2484,7 @@ WriteFile:
   //
   // Write fv file
   //
-  FvFile = fopen (FvFileName, "wb");
+  FvFile = fopen (LongFilePath (FvFileName), "wb");
   if (FvFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", FvFileName);
     Status = EFI_ABORTED;
@@ -2651,7 +2651,7 @@ Returns:
   // Calculate PI extension header
   //
   if (mFvDataInfo.FvExtHeaderFile[0] != '\0') {
-    fpin = fopen (mFvDataInfo.FvExtHeaderFile, "rb");
+    fpin = fopen (LongFilePath (mFvDataInfo.FvExtHeaderFile), "rb");
     if (fpin == NULL) {
       Error (NULL, 0, 0001, "Error opening file", mFvDataInfo.FvExtHeaderFile);
       return EFI_ABORTED;
@@ -2678,7 +2678,7 @@ Returns:
     // Open FFS file
     //
     fpin = NULL;
-    fpin = fopen (FvInfoPtr->FvFiles[Index], "rb");
+    fpin = fopen (LongFilePath (FvInfoPtr->FvFiles[Index]), "rb");
     if (fpin == NULL) {
       Error (NULL, 0, 0001, "Error opening file", FvInfoPtr->FvFiles[Index]);
       return EFI_ABORTED;
@@ -2915,7 +2915,7 @@ Returns:
   EFI_TE_IMAGE_HEADER                   *TEImageHeader;
   UINT8                                 *MemoryImagePointer;
   EFI_IMAGE_SECTION_HEADER              *SectionHeader;
-  CHAR8                                 PeFileName [_MAX_PATH];
+  CHAR8                                 PeFileName [MAX_LONG_FILE_PATH];
   CHAR8                                 *Cptr;
   FILE                                  *PeFile;
   UINT8                                 *PeFileBuffer;
@@ -3066,7 +3066,7 @@ Returns:
             *(Cptr + 3) = 'i';
             *(Cptr + 4) = '\0';
           }
-          PeFile = fopen (PeFileName, "rb");
+          PeFile = fopen (LongFilePath (PeFileName), "rb");
           if (PeFile == NULL) {
             Warning (NULL, 0, 0, "Invalid", "The file %s has no .reloc section.", FileName);
             //Error (NULL, 0, 3000, "Invalid", "The file %s has no .reloc section.", FileName);
@@ -3322,7 +3322,7 @@ Returns:
         *(Cptr + 4) = '\0';
       }
 
-      PeFile = fopen (PeFileName, "rb");
+      PeFile = fopen (LongFilePath (PeFileName), "rb");
       if (PeFile == NULL) {
         Warning (NULL, 0, 0, "Invalid", "The file %s has no .reloc section.", FileName);
         //Error (NULL, 0, 3000, "Invalid", "The file %s has no .reloc section.", FileName);
@@ -3567,7 +3567,7 @@ Returns:
   EFI_NOT_FOUND     A required string was not found in the INF file.
 --*/
 {
-  CHAR8       Value[_MAX_PATH];
+  CHAR8       Value[MAX_LONG_FILE_PATH];
   UINT64      Value64;
   UINTN       Index, Number;
   EFI_STATUS  Status;
@@ -3773,7 +3773,7 @@ Returns:
   FileSize = 0;
   CapSize  = mCapDataInfo.HeaderSize;
   while (mCapDataInfo.CapFiles [Index][0] != '\0') {
-    fpin = fopen (mCapDataInfo.CapFiles[Index], "rb");
+    fpin = fopen (LongFilePath (mCapDataInfo.CapFiles[Index]), "rb");
     if (fpin == NULL) {
       Error (NULL, 0, 0001, "Error opening file", mCapDataInfo.CapFiles[Index]);
       return EFI_ABORTED;
@@ -3811,7 +3811,7 @@ Returns:
   FileSize = 0;
   CapSize  = CapsuleHeader->HeaderSize;
   while (mCapDataInfo.CapFiles [Index][0] != '\0') {
-    fpin = fopen (mCapDataInfo.CapFiles[Index], "rb");
+    fpin = fopen (LongFilePath (mCapDataInfo.CapFiles[Index]), "rb");
     if (fpin == NULL) {
       Error (NULL, 0, 0001, "Error opening file", mCapDataInfo.CapFiles[Index]);
       free (CapBuffer);
@@ -3827,7 +3827,7 @@ Returns:
   //
   // write capsule data into the output file
   //
-  fpout = fopen (CapFileName, "wb");
+  fpout = fopen (LongFilePath (CapFileName), "wb");
   if (fpout == NULL) {
     Error (NULL, 0, 0001, "Error opening file", CapFileName);
     free (CapBuffer);
diff --git a/BaseTools/Source/C/GenFv/GenFvInternalLib.h b/BaseTools/Source/C/GenFv/GenFvInternalLib.h
index a9a00ec028..f8eecbade1 100644
--- a/BaseTools/Source/C/GenFv/GenFvInternalLib.h
+++ b/BaseTools/Source/C/GenFv/GenFvInternalLib.h
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -214,7 +214,7 @@ Abstract:
 //
 typedef struct {
   UINTN Size;
-  CHAR8 ComponentName[_MAX_PATH];
+  CHAR8 ComponentName[MAX_LONG_FILE_PATH];
 } COMPONENT_INFO;
 
 //
@@ -227,12 +227,12 @@ typedef struct {
   BOOLEAN                 FvFileSystemGuidSet;
   EFI_GUID                FvNameGuid;
   BOOLEAN                 FvNameGuidSet;
-  CHAR8                   FvExtHeaderFile[_MAX_PATH];
+  CHAR8                   FvExtHeaderFile[MAX_LONG_FILE_PATH];
   UINTN                   Size;
   EFI_FVB_ATTRIBUTES_2    FvAttributes;
-  CHAR8                   FvName[_MAX_PATH];
+  CHAR8                   FvName[MAX_LONG_FILE_PATH];
   EFI_FV_BLOCK_MAP_ENTRY  FvBlocks[MAX_NUMBER_OF_FV_BLOCKS];
-  CHAR8                   FvFiles[MAX_NUMBER_OF_FILES_IN_FV][_MAX_PATH];
+  CHAR8                   FvFiles[MAX_NUMBER_OF_FILES_IN_FV][MAX_LONG_FILE_PATH];
   UINT32                  SizeofFvFiles[MAX_NUMBER_OF_FILES_IN_FV];
   BOOLEAN                 IsPiFvImage;
   INT8                    ForceRebase;
@@ -242,8 +242,8 @@ typedef struct {
   EFI_GUID                CapGuid;
   UINT32                  HeaderSize;
   UINT32                  Flags;
-  CHAR8                   CapName[_MAX_PATH];
-  CHAR8                   CapFiles[MAX_NUMBER_OF_FILES_IN_CAP][_MAX_PATH];
+  CHAR8                   CapName[MAX_LONG_FILE_PATH];
+  CHAR8                   CapFiles[MAX_NUMBER_OF_FILES_IN_CAP][MAX_LONG_FILE_PATH];
 } CAP_INFO;
 
 #pragma pack(1)
diff --git a/BaseTools/Source/C/GenFw/GenFw.c b/BaseTools/Source/C/GenFw/GenFw.c
index d511834fc0..56543b411b 100644
--- a/BaseTools/Source/C/GenFw/GenFw.c
+++ b/BaseTools/Source/C/GenFw/GenFw.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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
 which accompanies this distribution.  The full text of the license may be found at
@@ -66,10 +66,6 @@ Abstract:
 #define DEFAULT_MC_PAD_BYTE_VALUE  0xFF
 #define DEFAULT_MC_ALIGNMENT       16
 
-#ifndef _MAX_PATH
-#define _MAX_PATH 500
-#endif
-
 #define STATUS_IGNORE 0xA
 //
 // Structure definition for a microcode header
@@ -179,7 +175,7 @@ Returns:
   //
   // Copyright declaration
   //
-  fprintf (stdout, "Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.\n\n");
+  fprintf (stdout, "Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.\n\n");
 
   //
   // Details Option
@@ -1559,7 +1555,7 @@ Returns:
   // Open output file and Write image into the output file.
   //
   if (OutImageName != NULL) {
-    fpOut = fopen (OutImageName, "rb");
+    fpOut = fopen (LongFilePath (OutImageName), "rb");
     if (fpOut != NULL) {
       //
       // Get Output file time stamp
@@ -1590,7 +1586,7 @@ Returns:
   //
   // Open input file and read file data into file buffer.
   //
-  fpIn = fopen (mInImageName, "rb");
+  fpIn = fopen (LongFilePath (mInImageName), "rb");
   if (fpIn == NULL) {
     Error (NULL, 0, 0001, "Error opening file", mInImageName);
     goto Finish;
@@ -1621,7 +1617,7 @@ Returns:
     //
     // Open output file handle.
     //
-    fpOut = fopen (OutImageName, "wb");
+    fpOut = fopen (LongFilePath (OutImageName), "wb");
     if (!fpOut) {
       Error (NULL, 0, 0001, "Error opening output file", OutImageName);
       goto Finish;
@@ -1631,7 +1627,7 @@ Returns:
     //
     HiiPackageListHeader.PackageLength = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
     for (Index = 0; Index < InputFileNum; Index ++) {
-      fpIn = fopen (InputFileName [Index], "rb");
+      fpIn = fopen (LongFilePath (InputFileName [Index]), "rb");
       if (fpIn == NULL) {
         Error (NULL, 0, 0001, "Error opening file", InputFileName [Index]);
         goto Finish;
@@ -1677,7 +1673,7 @@ Returns:
     memcpy (HiiPackageListBuffer, &HiiPackageListHeader, sizeof (HiiPackageListHeader));
     HiiPackageDataPointer = HiiPackageListBuffer + sizeof (HiiPackageListHeader);
     for (Index = 0; Index < InputFileNum; Index ++) {
-      fpIn = fopen (InputFileName [Index], "rb");
+      fpIn = fopen (LongFilePath (InputFileName [Index]), "rb");
       if (fpIn == NULL) {
         Error (NULL, 0, 0001, "Error opening file", InputFileName [Index]);
         free (HiiPackageListBuffer);
@@ -1757,13 +1753,13 @@ Returns:
     //
     // Open output file handle.
     //
-    fpOut = fopen (OutImageName, "wb");
+    fpOut = fopen (LongFilePath (OutImageName), "wb");
     if (!fpOut) {
       Error (NULL, 0, 0001, "Error opening output file", OutImageName);
       goto Finish;
     }
     for (Index = 0; Index < InputFileNum; Index ++) {
-      fpIn = fopen (InputFileName [Index], "rb");
+      fpIn = fopen (LongFilePath (InputFileName [Index]), "rb");
       if (!fpIn) {
         Error (NULL, 0, 0001, "Error opening file", InputFileName [Index]);
         goto Finish;
@@ -1805,7 +1801,7 @@ Returns:
   // Convert MicroCode.txt file to MicroCode.bin file
   //
   if (mOutImageType == FW_MCI_IMAGE) {
-    fpIn = fopen (mInImageName, "r");
+    fpIn = fopen (LongFilePath (mInImageName), "r");
     if (fpIn == NULL) {
       Error (NULL, 0, 0001, "Error opening file", mInImageName);
       goto Finish;
@@ -1928,14 +1924,14 @@ Returns:
     // Open the output file handle.
     //
     if (ReplaceFlag) {
-      fpInOut = fopen (mInImageName, "wb");
+      fpInOut = fopen (LongFilePath (mInImageName), "wb");
       if (fpInOut == NULL) {
         Error (NULL, 0, 0001, "Error opening file", mInImageName);
         goto Finish;
       }
     } else {
       if (OutImageName != NULL) {
-        fpOut = fopen (OutImageName, "wb");
+        fpOut = fopen (LongFilePath (OutImageName), "wb");
       } else {
         fpOut = stdout;
       }
@@ -2641,7 +2637,7 @@ WriteFile:
       //
       // Update File when File is changed.
       //
-      fpInOut = fopen (mInImageName, "wb");
+      fpInOut = fopen (LongFilePath (mInImageName), "wb");
       if (fpInOut == NULL) {
         Error (NULL, 0, 0001, "Error opening file", mInImageName);
         goto Finish;
@@ -2654,7 +2650,7 @@ WriteFile:
       //
       // Update File when File is changed or File is old.
       //
-      fpOut = fopen (OutImageName, "wb");
+      fpOut = fopen (LongFilePath (OutImageName), "wb");
       if (fpOut == NULL) {
         Error (NULL, 0, 0001, "Error opening output file", OutImageName);
         goto Finish;
@@ -2696,7 +2692,7 @@ Finish:
       if (OutputFileBuffer == NULL) {
         remove (OutImageName);
       } else {
-        fpOut = fopen (OutImageName, "wb");
+        fpOut = fopen (LongFilePath (OutImageName), "wb");
         fwrite (OutputFileBuffer, 1, OutputFileLength, fpOut);
         fclose (fpOut);
       }
@@ -2722,7 +2718,7 @@ Finish:
     if (ReportFileName != NULL) {
       strcpy (ReportFileName, OutImageName);
       strcpy (ReportFileName + (FileLen - 4), ".txt"); 
-      ReportFile = fopen (ReportFileName, "w+");
+      ReportFile = fopen (LongFilePath (ReportFileName), "w+");
       if (ReportFile != NULL) {
         fprintf (ReportFile, "MODULE_SIZE = %u\n", (unsigned) mImageSize);
         fprintf (ReportFile, "TIME_STAMP = %u\n", (unsigned) mImageTimeStamp);
diff --git a/BaseTools/Source/C/GenPage/GenPage.c b/BaseTools/Source/C/GenPage/GenPage.c
index 78047ba9be..b6a5d01e3e 100644
--- a/BaseTools/Source/C/GenPage/GenPage.c
+++ b/BaseTools/Source/C/GenPage/GenPage.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -243,13 +243,13 @@ return:
   //
   // Open files
   //
-  PageFile = fopen (PageFileName, "w+b");
+  PageFile = fopen (LongFilePath (PageFileName), "w+b");
   if (PageFile == NULL) {
     Error (NoPageFileName, 0, 0x4002, "Invalid parameter option", "Output File %s open failure", PageFileName);
     return -1;
   }
 
-  NoPageFile = fopen (NoPageFileName, "r+b");
+  NoPageFile = fopen (LongFilePath (NoPageFileName), "r+b");
   if (NoPageFile == NULL) {
     Error (NoPageFileName, 0, 0x4002, "Invalid parameter option", "Input File %s open failure", NoPageFileName);
     fclose (PageFile);
diff --git a/BaseTools/Source/C/GenSec/GenSec.c b/BaseTools/Source/C/GenSec/GenSec.c
index 63e8e13e8f..f9370d3564 100644
--- a/BaseTools/Source/C/GenSec/GenSec.c
+++ b/BaseTools/Source/C/GenSec/GenSec.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -153,7 +153,7 @@ Returns:
   //
   // Copyright declaration
   // 
-  fprintf (stdout, "Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.\n\n");
+  fprintf (stdout, "Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.\n\n");
 
   //
   // Details Option
@@ -283,7 +283,7 @@ Returns:
   //
   // Open the input file
   //
-  InFile = fopen (InputFileName[0], "rb");
+  InFile = fopen (LongFilePath (InputFileName[0]), "rb");
   if (InFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file", InputFileName[0]);
     return STATUS_ERROR;
@@ -473,7 +473,7 @@ Returns:
     // 
     // Open file and read contents
     //
-    InFile = fopen (InputFileName[Index], "rb");
+    InFile = fopen (LongFilePath (InputFileName[Index]), "rb");
     if (InFile == NULL) {
       Error (NULL, 0, 0001, "Error opening file", InputFileName[Index]);
       return EFI_ABORTED;
@@ -1553,7 +1553,7 @@ Returns:
   //
   // Write the output file
   //
-  OutFile = fopen (OutputFileName, "wb");
+  OutFile = fopen (LongFilePath (OutputFileName), "wb");
   if (OutFile == NULL) {
     Error (NULL, 0, 0001, "Error opening file for writing", OutputFileName);
     goto Finish;
diff --git a/BaseTools/Source/C/GenVtf/GenVtf.c b/BaseTools/Source/C/GenVtf/GenVtf.c
index eaf2f56fed..60df34906e 100644
--- a/BaseTools/Source/C/GenVtf/GenVtf.c
+++ b/BaseTools/Source/C/GenVtf/GenVtf.c
@@ -1,6 +1,6 @@
 /**
 
-Copyright (c) 1999 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 1999 - 2014, 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 which accompanies this 
 distribution.  The full text of the license may be found at
@@ -1070,7 +1070,7 @@ Returns:
   CHAR8   Buff5[10];
   CHAR8   Token[50];
 
-  Fp = fopen (VtfInfo->CompSymName, "rb");
+  Fp = fopen (LongFilePath (VtfInfo->CompSymName), "rb");
 
   if (Fp == NULL) {
     Error (NULL, 0, 0001, "Error opening file", VtfInfo->CompSymName);
@@ -1152,7 +1152,7 @@ Returns:
     return EFI_SUCCESS;
   }
 
-  Fp = fopen (VtfInfo->CompBinName, "rb");
+  Fp = fopen (LongFilePath (VtfInfo->CompBinName), "rb");
 
   if (Fp == NULL) {
     Error (NULL, 0, 0001, "Error opening file", VtfInfo->CompBinName);
@@ -1332,7 +1332,7 @@ Returns:
   FILE        *Fp;
   FIT_TABLE   *PalFitPtr;
 
-  Fp = fopen (VtfInfo->CompBinName, "rb");
+  Fp = fopen (LongFilePath (VtfInfo->CompBinName), "rb");
 
   if (Fp == NULL) {
     Error (NULL, 0, 0001, "Error opening file", VtfInfo->CompBinName);
@@ -1551,7 +1551,7 @@ Returns:
     VtfBuffer = (VOID *) RelativeAddress;
   }
 
-  Fp = fopen (FileName, "wb");
+  Fp = fopen (LongFilePath (FileName), "wb");
   if (Fp == NULL) {
     Error (NULL, 0, 0001, "Error opening file", FileName);
     return EFI_ABORTED;
@@ -1763,7 +1763,7 @@ Returns:
     return EFI_INVALID_PARAMETER;
   }
 
-  Fp = fopen (FileName, "rb");
+  Fp = fopen (LongFilePath (FileName), "rb");
 
   if (Fp == NULL) {
     Error (NULL, 0, 0001, "Error opening file", FileName);
@@ -2125,7 +2125,7 @@ Returns:
   }
   *StartAddressPtr = StartAddress;
 
-  Fp = fopen (OutFileName1, "rb");
+  Fp = fopen (LongFilePath (OutFileName1), "rb");
 
   if (Fp == NULL) {
     Error (NULL, 0, 0001, "Error opening file", OutFileName1);
@@ -2183,12 +2183,12 @@ Returns:
 {
   FILE    *SourceFile;
   FILE    *DestFile;
-  CHAR8   Buffer[_MAX_PATH];
-  CHAR8   Type[_MAX_PATH];
-  CHAR8   Address[_MAX_PATH];
-  CHAR8   Section[_MAX_PATH];
-  CHAR8   Token[_MAX_PATH];
-  CHAR8   BaseToken[_MAX_PATH];
+  CHAR8   Buffer[MAX_LONG_FILE_PATH];
+  CHAR8   Type[MAX_LONG_FILE_PATH];
+  CHAR8   Address[MAX_LONG_FILE_PATH];
+  CHAR8   Section[MAX_LONG_FILE_PATH];
+  CHAR8   Token[MAX_LONG_FILE_PATH];
+  CHAR8   BaseToken[MAX_LONG_FILE_PATH];
   UINT64  TokenAddress;
   long    StartLocation;
 
@@ -2202,7 +2202,7 @@ Returns:
   //
   // Open the source file
   //
-  SourceFile = fopen (SourceFileName, "r");
+  SourceFile = fopen (LongFilePath (SourceFileName), "r");
   if (SourceFile == NULL) {
 
     //
@@ -2221,7 +2221,7 @@ Returns:
   //
   // Open the destination file
   //
-  DestFile = fopen (DestFileName, "a+");
+  DestFile = fopen (LongFilePath (DestFileName), "a+");
   if (DestFile == NULL) {
     fclose (SourceFile);
     Error (NULL, 0, 0001, "Error opening file", DestFileName);
@@ -2252,7 +2252,7 @@ Returns:
   //
   // Read the first line
   //
-  if (fgets (Buffer, _MAX_PATH, SourceFile) == NULL) {
+  if (fgets (Buffer, MAX_LONG_FILE_PATH, SourceFile) == NULL) {
     Buffer[0] = 0;
   }
 
@@ -2410,7 +2410,7 @@ Returns:
   //
   // Copyright declaration
   //
-  fprintf (stdout, "Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.\n\n");
+  fprintf (stdout, "Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.\n\n");
   //
   // Details Option
   //
@@ -2546,7 +2546,7 @@ Returns:
       // Get the input VTF file name
       //
       VtfFileName = argv[Index+1];
-      VtfFP = fopen(VtfFileName, "rb");
+      VtfFP = fopen (LongFilePath (VtfFileName), "rb");
       if (VtfFP == NULL) {
         Error (NULL, 0, 0001, "Error opening file", VtfFileName);
         goto ERROR;
diff --git a/BaseTools/Source/C/GnuGenBootSector/GnuGenBootSector.c b/BaseTools/Source/C/GnuGenBootSector/GnuGenBootSector.c
index b0ec271b05..f9869c4441 100644
--- a/BaseTools/Source/C/GnuGenBootSector/GnuGenBootSector.c
+++ b/BaseTools/Source/C/GnuGenBootSector/GnuGenBootSector.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -153,7 +153,7 @@ GetPathInfo (
     }  
      
     // Try to open the device.   
-    f = fopen(PathInfo->Path,"r");
+    f = fopen (LongFilePath (PathInfo->Path),"r");
     if (f == NULL) {
       printf ("error :open device failed!\n");
       return ErrorPath;
@@ -167,7 +167,7 @@ GetPathInfo (
   if (PathInfo->Input) {
     // If path is file path, check whether file is valid.
     printf("Path = %s\n",PathInfo->Path);
-    f = fopen (PathInfo->Path, "r");
+    f = fopen (LongFilePath (PathInfo->Path), "r");
     if (f == NULL) {
       fprintf (stderr, "Test error E2003: File was not provided!\n");
       return ErrorPath;
@@ -211,7 +211,7 @@ ProcessBsOrMbr (
   FILE *OutputFile;
   
   
-  InputFile = fopen(InputInfo->PhysicalPath, "r");
+  InputFile = fopen (LongFilePath (InputInfo->PhysicalPath), "r");
   if (InputFile == NULL) {
     return ErrorFileReadWrite;
   }
@@ -235,9 +235,9 @@ ProcessBsOrMbr (
   } 
   
   //Process Floppy Disk
-  OutputFile = fopen(OutputInfo->PhysicalPath, "r+");
+  OutputFile = fopen (LongFilePath (OutputInfo->PhysicalPath), "r+");
   if (OutputFile == NULL) {
-    OutputFile = fopen(OutputInfo->PhysicalPath, "w");
+    OutputFile = fopen (LongFilePath (OutputInfo->PhysicalPath), "w");
     if (OutputFile == NULL) {
       return ErrorFileReadWrite;
     }
@@ -276,7 +276,7 @@ Version (
   )
 {
   printf ("%s v%d.%d %s-Utility to retrieve and update the boot sector or MBR.\n", UTILITY_NAME, UTILITY_MAJOR_VERSION, UTILITY_MINOR_VERSION, __BUILD_VERSION);
-  printf ("Copyright (c) 2007-2010 Intel Corporation. All rights reserved.\n");
+  printf ("Copyright (c) 2007-2014 Intel Corporation. All rights reserved.\n");
 }
 
 
diff --git a/BaseTools/Source/C/Split/Split.c b/BaseTools/Source/C/Split/Split.c
index 544da91f4b..e8fea63510 100644
--- a/BaseTools/Source/C/Split/Split.c
+++ b/BaseTools/Source/C/Split/Split.c
@@ -2,7 +2,7 @@
 
   Split a file into two pieces at the request offset.
 
-Copyright (c) 1999 - 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 1999 - 2014, 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 which accompanies this
 distribution.  The full text of the license may be found at
@@ -58,7 +58,7 @@ Returns:
 --*/
 {
   printf ("%s v%d.%d %s -Utility to break a file into two pieces at the request offset.\n", UTILITY_NAME, UTILITY_MAJOR_VERSION, UTILITY_MINOR_VERSION, __BUILD_VERSION);
-  printf ("Copyright (c) 1999-2010 Intel Corporation. All rights reserved.\n");
+  printf ("Copyright (c) 1999-2014 Intel Corporation. All rights reserved.\n");
 }
 
 void
@@ -348,7 +348,7 @@ Returns:
     return STATUS_ERROR;
   }
 
-  In = fopen (InputFileName, "rb");
+  In = fopen (LongFilePath (InputFileName), "rb");
   if (In == NULL) {
     // ("Unable to open file \"%s\"\n", InputFileName);
     Error (InputFileName, 0, 1, "File open failure", NULL);
@@ -400,14 +400,14 @@ Returns:
   chdir(CurrentDir);
   free(CurrentDir);
 
-  Out1 = fopen (OutFileName1, "wb");
+  Out1 = fopen (LongFilePath (OutFileName1), "wb");
   if (Out1 == NULL) {
     // ("Unable to open file \"%s\"\n", OutFileName1);
     Error (OutFileName1, 0, 1, "File open failure", NULL);
     return STATUS_ERROR;
   }
 
-  Out2 = fopen (OutFileName2, "wb");
+  Out2 = fopen (LongFilePath (OutFileName2), "wb");
   if (Out2 == NULL) {
     // ("Unable to open file \"%s\"\n", OutFileName2);
     Error (OutFileName2, 0, 1, "File open failure", NULL);
diff --git a/BaseTools/Source/C/VfrCompile/VfrCompiler.cpp b/BaseTools/Source/C/VfrCompile/VfrCompiler.cpp
index bb2df3ed39..063266a91f 100644
--- a/BaseTools/Source/C/VfrCompile/VfrCompiler.cpp
+++ b/BaseTools/Source/C/VfrCompile/VfrCompiler.cpp
@@ -2,7 +2,7 @@
   
   VfrCompiler main class and main function.
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -413,7 +413,7 @@ CVfrCompiler::Usage (
   CONST  CHAR8 *Help[] = {
     " ", 
     "VfrCompile version " VFR_COMPILER_VERSION __BUILD_VERSION,
-    "Copyright (c) 2004-2013 Intel Corporation. All rights reserved.",
+    "Copyright (c) 2004-2014 Intel Corporation. All rights reserved.",
     " ",
     "Usage: VfrCompile [options] VfrFile",
     " ",
@@ -476,7 +476,7 @@ CVfrCompiler::PreProcess (
     goto Out;
   }
 
-  if ((pVfrFile = fopen (mOptions.VfrFileName, "r")) == NULL) {
+  if ((pVfrFile = fopen (LongFilePath (mOptions.VfrFileName), "r")) == NULL) {
     DebugError (NULL, 0, 0001, "Error opening the input VFR file", mOptions.VfrFileName);
     goto Fail;
   }
@@ -545,7 +545,7 @@ CVfrCompiler::Compile (
   gCVfrErrorHandle.SetInputFile (InFileName);
   gCVfrErrorHandle.SetWarningAsError(mOptions.WarningAsError);
 
-  if ((pInFile = fopen (InFileName, "r")) == NULL) {
+  if ((pInFile = fopen (LongFilePath (InFileName), "r")) == NULL) {
     DebugError (NULL, 0, 0001, "Error opening the input file", InFileName);
     goto Fail;
   }
@@ -699,7 +699,7 @@ CVfrCompiler::GenBinary (
   }
 
   if (mOptions.CreateIfrPkgFile == TRUE) {
-    if ((pFile = fopen (mOptions.PkgOutputFileName, "wb")) == NULL) {
+    if ((pFile = fopen (LongFilePath (mOptions.PkgOutputFileName), "wb")) == NULL) {
       DebugError (NULL, 0, 0001, "Error opening file", mOptions.PkgOutputFileName);
       goto Fail;
     }
@@ -742,7 +742,7 @@ CVfrCompiler::GenCFile (
   }
   
   if (!mOptions.CreateIfrPkgFile || mOptions.CompatibleMode) {
-    if ((pFile = fopen (mOptions.COutputFileName, "w")) == NULL) {
+    if ((pFile = fopen (LongFilePath (mOptions.COutputFileName), "w")) == NULL) {
       DebugError (NULL, 0, 0001, "Error opening output C file", mOptions.COutputFileName);
       goto Fail;
     }
@@ -789,12 +789,12 @@ CVfrCompiler::GenRecordListFile (
       return;
     }
 
-    if ((pInFile = fopen (InFileName, "r")) == NULL) {
+    if ((pInFile = fopen (LongFilePath (InFileName), "r")) == NULL) {
       DebugError (NULL, 0, 0001, "Error opening the input VFR preprocessor output file", InFileName);
       return;
     }
 
-    if ((pOutFile = fopen (mOptions.RecordListFile, "w")) == NULL) {
+    if ((pOutFile = fopen (LongFilePath (mOptions.RecordListFile), "w")) == NULL) {
       DebugError (NULL, 0, 0001, "Error opening the record list file", mOptions.RecordListFile);
       goto Err1;
     }
diff --git a/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp b/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
index 7c1383eb7a..246820a08a 100644
--- a/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
+++ b/BaseTools/Source/C/VfrCompile/VfrUtilityLib.cpp
@@ -2,7 +2,7 @@
   
   Vfr common library functions.
 
-Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2014, 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         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -15,6 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "stdio.h"
 #include "stdlib.h"
+#include "CommonLib.h"
 #include "VfrUtilityLib.h"
 #include "VfrFormPkg.h"
 
@@ -3283,7 +3284,7 @@ CVfrStringDB::GetVarStoreNameFormStringId (
     return NULL;
   }
 
-  if ((pInFile = fopen (mStringFileName, "rb")) == NULL) {
+  if ((pInFile = fopen (LongFilePath (mStringFileName), "rb")) == NULL) {
     return NULL;
   }
 
diff --git a/BaseTools/Source/C/VolInfo/VolInfo.c b/BaseTools/Source/C/VolInfo/VolInfo.c
index 21d70199cb..537cea3cfe 100644
--- a/BaseTools/Source/C/VolInfo/VolInfo.c
+++ b/BaseTools/Source/C/VolInfo/VolInfo.c
@@ -249,7 +249,7 @@ Returns:
   //
   // Open the file containing the FV
   //
-  InputFile = fopen (argv[0], "rb");
+  InputFile = fopen (LongFilePath (argv[0]), "rb");
   if (InputFile == NULL) {
     Error (NULL, 0, 0001, "Error opening the input file", argv[0]);
     return GetUtilityStatus ();
diff --git a/BaseTools/Source/Python/AutoGen/AutoGen.py b/BaseTools/Source/Python/AutoGen/AutoGen.py
index 11cf8b2f18..c4662572a0 100644
--- a/BaseTools/Source/Python/AutoGen/AutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/AutoGen.py
@@ -13,7 +13,7 @@
 
 ## Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import os.path as path
 import copy
@@ -26,6 +26,7 @@ from StringIO import StringIO
 from StrGather import *
 from BuildEngine import BuildRule
 
+from Common.LongFilePathSupport import CopyLongFilePath
 from Common.BuildToolError import *
 from Common.DataType import *
 from Common.Misc import *
diff --git a/BaseTools/Source/Python/AutoGen/BuildEngine.py b/BaseTools/Source/Python/AutoGen/BuildEngine.py
index b3083d0395..d15ccc06d5 100644
--- a/BaseTools/Source/Python/AutoGen/BuildEngine.py
+++ b/BaseTools/Source/Python/AutoGen/BuildEngine.py
@@ -1,7 +1,7 @@
 ## @file
 # The engine for building files
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,10 +14,11 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import copy
 import string
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 from Common.GlobalData import *
 from Common.BuildToolError import *
diff --git a/BaseTools/Source/Python/AutoGen/GenDepex.py b/BaseTools/Source/Python/AutoGen/GenDepex.py
index 37ba7bc72c..a390d560fc 100644
--- a/BaseTools/Source/Python/AutoGen/GenDepex.py
+++ b/BaseTools/Source/Python/AutoGen/GenDepex.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to generate DEPEX file for module's dependency expression
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.    The full text of the license may be found at
@@ -13,10 +13,10 @@
 ## Import Modules
 #
 import sys
-import os
+import Common.LongFilePathOs as os
 import re
 import traceback
-
+from Common.LongFilePathSupport import OpenLongFilePath as open
 from StringIO import StringIO
 from struct import pack
 from Common.BuildToolError import *
diff --git a/BaseTools/Source/Python/AutoGen/GenMake.py b/BaseTools/Source/Python/AutoGen/GenMake.py
index 00d0af0cb7..64eedfaa12 100644
--- a/BaseTools/Source/Python/AutoGen/GenMake.py
+++ b/BaseTools/Source/Python/AutoGen/GenMake.py
@@ -1,7 +1,7 @@
 ## @file
 # Create makefile for MS nmake and GNU make
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -13,11 +13,12 @@
 
 ## Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import sys
 import string
 import re
 import os.path as path
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 from Common.BuildToolError import *
 from Common.Misc import *
diff --git a/BaseTools/Source/Python/AutoGen/StrGather.py b/BaseTools/Source/Python/AutoGen/StrGather.py
index b84d9f90aa..20af015bcf 100644
--- a/BaseTools/Source/Python/AutoGen/StrGather.py
+++ b/BaseTools/Source/Python/AutoGen/StrGather.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -20,6 +20,7 @@ from Common.BuildToolError import *
 from UniClassObject import *
 from StringIO import StringIO
 from struct import pack
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ##
 # Static definitions
diff --git a/BaseTools/Source/Python/AutoGen/UniClassObject.py b/BaseTools/Source/Python/AutoGen/UniClassObject.py
index 7b1ce72ea7..e676ad6ec8 100644
--- a/BaseTools/Source/Python/AutoGen/UniClassObject.py
+++ b/BaseTools/Source/Python/AutoGen/UniClassObject.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,13 +14,13 @@
 ##
 # Import Modules
 #
-import os, codecs, re
+import Common.LongFilePathOs as os, codecs, re
 import distutils.util
 import Common.EdkLogger as EdkLogger
 from Common.BuildToolError import *
 from Common.String import GetLineNo
 from Common.Misc import PathClass
-
+from Common.LongFilePathSupport import LongFilePath
 ##
 # Static definitions
 #
@@ -210,7 +210,7 @@ class UniFileClassObject(object):
         Lang = distutils.util.split_quoted((Line.split(u"//")[0]))
         if len(Lang) != 3:
             try:
-                FileIn = codecs.open(File.Path, mode='rb', encoding='utf-16').read()
+                FileIn = codecs.open(LongFilePath(File.Path), mode='rb', encoding='utf-16').read()
             except UnicodeError, X:
                 EdkLogger.error("build", FILE_READ_FAILURE, "File read failure: %s" % str(X), ExtraData=File);
             except:
@@ -292,7 +292,7 @@ class UniFileClassObject(object):
             EdkLogger.error("Unicode File Parser", FILE_NOT_FOUND, ExtraData=File.Path)
 
         try:
-            FileIn = codecs.open(File.Path, mode='rb', encoding='utf-16').readlines()
+            FileIn = codecs.open(LongFilePath(File.Path), mode='rb', encoding='utf-16').readlines()
         except UnicodeError, X:
             EdkLogger.error("build", FILE_READ_FAILURE, "File read failure: %s" % str(X), ExtraData=File.Path);
         except:
diff --git a/BaseTools/Source/Python/BPDG/BPDG.py b/BaseTools/Source/Python/BPDG/BPDG.py
index 284eed65c7..b12403139d 100644
--- a/BaseTools/Source/Python/BPDG/BPDG.py
+++ b/BaseTools/Source/Python/BPDG/BPDG.py
@@ -6,7 +6,7 @@
 #  file of PCD layout for use during the build when the platform integrator selects to use 
 #  automatic offset calculation.
 #
-#  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2010 - 2014, 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
@@ -20,7 +20,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import sys
 import encodings.ascii
 
diff --git a/BaseTools/Source/Python/BPDG/GenVpd.py b/BaseTools/Source/Python/BPDG/GenVpd.py
index 3564571787..76d30fa6ff 100644
--- a/BaseTools/Source/Python/BPDG/GenVpd.py
+++ b/BaseTools/Source/Python/BPDG/GenVpd.py
@@ -2,7 +2,7 @@
 #  This file include GenVpd class for fix the Vpd type PCD offset, and PcdEntry for describe
 #  and process each entry of vpd type PCD.
 #
-#  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2010 - 2014, 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
@@ -13,12 +13,12 @@
 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #
 
-import os
+import Common.LongFilePathOs as os
 import StringIO
 import StringTable as st
 import array
 import re
-
+from Common.LongFilePathSupport import OpenLongFilePath as open
 from struct import *
 import Common.EdkLogger as EdkLogger
 import Common.BuildToolError as BuildToolError
diff --git a/BaseTools/Source/Python/Common/Database.py b/BaseTools/Source/Python/Common/Database.py
index 5c0a79f291..a81a44731f 100644
--- a/BaseTools/Source/Python/Common/Database.py
+++ b/BaseTools/Source/Python/Common/Database.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create a database used by ECC tool
 #
-# Copyright (c) 2007 - 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,7 +15,7 @@
 # Import Modules
 #
 import sqlite3
-import os
+import Common.LongFilePathOs as os
 
 import EdkLogger as EdkLogger
 from CommonDataClass.DataClass import *
diff --git a/BaseTools/Source/Python/Common/DecClassObject.py b/BaseTools/Source/Python/Common/DecClassObject.py
index 5b39bcd4ce..d7c70a7336 100644
--- a/BaseTools/Source/Python/Common/DecClassObject.py
+++ b/BaseTools/Source/Python/Common/DecClassObject.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of DEC file
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 from String import *
 from DataType import *
 from Identification import *
@@ -26,6 +26,7 @@ from Table.TableDec import TableDec
 import Database
 from Parsing import *
 import GlobalData
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 #
 # Global variable
diff --git a/BaseTools/Source/Python/Common/Dictionary.py b/BaseTools/Source/Python/Common/Dictionary.py
index de3556b892..5300a5456c 100644
--- a/BaseTools/Source/Python/Common/Dictionary.py
+++ b/BaseTools/Source/Python/Common/Dictionary.py
@@ -1,7 +1,7 @@
 ## @file
 # Define a dictionary structure
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -16,6 +16,7 @@
 #
 import EdkLogger
 from DataType import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Convert a text file to a dictionary
 #
diff --git a/BaseTools/Source/Python/Common/DscClassObject.py b/BaseTools/Source/Python/Common/DscClassObject.py
index 3d06288e9a..788a75e267 100644
--- a/BaseTools/Source/Python/Common/DscClassObject.py
+++ b/BaseTools/Source/Python/Common/DscClassObject.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of DSC file
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import EdkLogger as EdkLogger
 import Database
 from String import *
@@ -28,6 +28,7 @@ from BuildToolError import *
 from Misc import sdict
 import GlobalData
 from Table.TableDsc import TableDsc
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 #
 # Global variable
diff --git a/BaseTools/Source/Python/Common/EdkIIWorkspace.py b/BaseTools/Source/Python/Common/EdkIIWorkspace.py
index d041b35411..84d89b6c2e 100644
--- a/BaseTools/Source/Python/Common/EdkIIWorkspace.py
+++ b/BaseTools/Source/Python/Common/EdkIIWorkspace.py
@@ -1,7 +1,7 @@
 ## @file
 # This is the base class for applications that operate on an EDK II Workspace 
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,8 +14,9 @@
 ##
 # Import Modules
 #
-import os, sys, time
+import Common.LongFilePathOs as os, sys, time
 from DataType import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## EdkIIWorkspace
 #
diff --git a/BaseTools/Source/Python/Common/EdkIIWorkspaceBuild.py b/BaseTools/Source/Python/Common/EdkIIWorkspaceBuild.py
index 2b5990ebe7..d6df01d4ce 100644
--- a/BaseTools/Source/Python/Common/EdkIIWorkspaceBuild.py
+++ b/BaseTools/Source/Python/Common/EdkIIWorkspaceBuild.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of the build database
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os, string, copy, pdb, copy
+import Common.LongFilePathOs as os, string, copy, pdb, copy
 import EdkLogger
 import DataType
 from InfClassObject import *
diff --git a/BaseTools/Source/Python/Common/EdkLogger.py b/BaseTools/Source/Python/Common/EdkLogger.py
index 10e7222b3d..f048b619e4 100644
--- a/BaseTools/Source/Python/Common/EdkLogger.py
+++ b/BaseTools/Source/Python/Common/EdkLogger.py
@@ -1,7 +1,7 @@
 ## @file
 # This file implements the log mechanism for Python tools.
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -12,7 +12,7 @@
 #
 
 ## Import modules
-import sys, os, logging
+import Common.LongFilePathOs as os, sys, logging
 import traceback
 from  BuildToolError import *
 
diff --git a/BaseTools/Source/Python/Common/FdfParserLite.py b/BaseTools/Source/Python/Common/FdfParserLite.py
index 031dc15bc7..54a60a7e8f 100644
--- a/BaseTools/Source/Python/Common/FdfParserLite.py
+++ b/BaseTools/Source/Python/Common/FdfParserLite.py
@@ -1,7 +1,7 @@
 ## @file
 # parse FDF file
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -16,9 +16,10 @@
 # Import Modules
 #
 import re
-import os
+import Common.LongFilePathOs as os
 
 import CommonDataClass.FdfClass
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ##define T_CHAR_SPACE                ' '
 ##define T_CHAR_NULL                 '\0'
diff --git a/BaseTools/Source/Python/Common/InfClassObject.py b/BaseTools/Source/Python/Common/InfClassObject.py
index 7ea0c39297..f24e4e41a0 100644
--- a/BaseTools/Source/Python/Common/InfClassObject.py
+++ b/BaseTools/Source/Python/Common/InfClassObject.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of INF file
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import EdkLogger
 from CommonDataClass.CommonClass import LibraryClassClass
@@ -29,6 +29,7 @@ import GlobalData
 from Table.TableInf import TableInf
 import Database
 from Parsing import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 #
 # Global variable
diff --git a/BaseTools/Source/Python/Common/LongFilePathOs.py b/BaseTools/Source/Python/Common/LongFilePathOs.py
new file mode 100644
index 0000000000..66d93d25f3
--- /dev/null
+++ b/BaseTools/Source/Python/Common/LongFilePathOs.py
@@ -0,0 +1,73 @@
+## @file
+# Override built in module os to provide support for long file path
+#
+# Copyright (c) 2014, 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
+# 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.
+#
+
+import os
+import LongFilePathOsPath
+from Common.LongFilePathSupport import LongFilePath
+from Common.LongFilePathSupport import UniToStr
+
+path = LongFilePathOsPath
+
+def access(path, mode):
+    return os.access(LongFilePath(path), mode)
+
+def remove(path):
+    return os.remove(LongFilePath(path))
+
+def removedirs(name):
+    return os.removedirs(LongFilePath(name))
+
+def rmdir(path):
+    return os.rmdir(LongFilePath(path))
+
+def mkdir(path):
+    return os.mkdir(LongFilePath(path))
+
+def makedirs(name, mode=0777):
+    return os.makedirs(LongFilePath(name), mode)
+
+def rename(old, new):
+    return os.rename(LongFilePath(old), LongFilePath(new))
+
+def chdir(path):
+    return os.chdir(LongFilePath(path))
+
+def chmod(path, mode):
+    return os.chmod(LongFilePath(path), mode)
+
+def stat(path):
+    return os.stat(LongFilePath(path))
+
+def utime(path):
+    return os.utime(LongFilePath(path), None)
+
+def listdir(path):
+    List = []
+    uList = os.listdir(u"%s" % LongFilePath(path))
+    for Item in uList:
+        List.append(UniToStr(Item))
+    return List
+
+environ = os.environ
+getcwd = os.getcwd
+chdir = os.chdir
+walk = os.walk
+W_OK = os.W_OK
+F_OK = os.F_OK
+sep = os.sep
+linesep = os.linesep
+getenv = os.getenv
+pathsep = os.pathsep
+name = os.name
+SEEK_SET = os.SEEK_SET
+SEEK_END = os.SEEK_END
diff --git a/BaseTools/Source/Python/Common/LongFilePathOsPath.py b/BaseTools/Source/Python/Common/LongFilePathOsPath.py
new file mode 100644
index 0000000000..cb89b1b813
--- /dev/null
+++ b/BaseTools/Source/Python/Common/LongFilePathOsPath.py
@@ -0,0 +1,51 @@
+## @file
+# Override built in module os.path to provide support for long file path
+#
+# Copyright (c) 2014, 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
+# 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.
+#
+
+import os
+from Common.LongFilePathSupport import LongFilePath
+
+def isfile(path):
+    return os.path.isfile(LongFilePath(path))
+
+def isdir(path):
+    return os.path.isdir(LongFilePath(path))
+
+def exists(path):
+    return os.path.exists(LongFilePath(path))
+
+def getsize(filename):
+    return os.path.getsize(LongFilePath(filename))
+
+def getmtime(filename):
+    return os.path.getmtime(LongFilePath(filename))
+
+def getatime(filename):
+    return os.path.getatime(LongFilePath(filename))
+
+def getctime(filename):
+    return os.path.getctime(LongFilePath(filename))
+
+join = os.path.join
+splitext = os.path.splitext
+splitdrive = os.path.splitdrive
+split = os.path.split
+abspath = os.path.abspath
+basename = os.path.basename
+commonprefix = os.path.commonprefix
+sep = os.path.sep
+normpath = os.path.normpath
+normcase = os.path.normcase
+dirname = os.path.dirname
+islink = os.path.islink
+isabs = os.path.isabs
+realpath = os.path.realpath
diff --git a/BaseTools/Source/Python/Common/LongFilePathSupport.py b/BaseTools/Source/Python/Common/LongFilePathSupport.py
new file mode 100644
index 0000000000..72dde20503
--- /dev/null
+++ b/BaseTools/Source/Python/Common/LongFilePathSupport.py
@@ -0,0 +1,59 @@
+## @file
+# Override built in function file.open to provide support for long file path
+#
+# Copyright (c) 2014, 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
+# 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.
+#
+
+import os
+import platform
+import shutil
+
+##
+# OpenLongPath
+# Convert a file path to a long file path
+#
+def LongFilePath(FileName):
+    FileName = os.path.normpath(FileName)
+    if platform.system() == 'Windows':
+        if FileName.startswith('\\\\?\\'):
+            return FileName
+        if FileName.startswith('\\\\'):
+            return '\\\\?\\UNC\\' + FileName[2:]
+        if os.path.isabs(FileName):
+            return '\\\\?\\' + FileName
+    return FileName
+
+##
+# OpenLongFilePath
+# wrap open to support opening a long file path
+#
+def OpenLongFilePath(FileName, Mode='r', Buffer= -1):
+    return open(LongFilePath(FileName), Mode, Buffer)
+
+##
+# CopyLongFilePath
+# wrap copyfile to support copy a long file path
+#
+def CopyLongFilePath(src, dst):
+    with open(LongFilePath(src), 'rb') as fsrc:
+        with open(LongFilePath(dst), 'wb') as fdst:
+            shutil.copyfileobj(fsrc, fdst)
+
+## Convert a python unicode string to a normal string
+#
+# Convert a python unicode string to a normal string
+# UniToStr(u'I am a string') is 'I am a string'
+#
+# @param Uni:  The python unicode string
+#
+# @retval:     The formatted normal string
+#
+def UniToStr(Uni):
+    return repr(Uni)[2:-1]
diff --git a/BaseTools/Source/Python/Common/MigrationUtilities.py b/BaseTools/Source/Python/Common/MigrationUtilities.py
index 7c69704596..6d6669d7ae 100644
--- a/BaseTools/Source/Python/Common/MigrationUtilities.py
+++ b/BaseTools/Source/Python/Common/MigrationUtilities.py
@@ -1,7 +1,7 @@
 ## @file
 # Contains several utilitities shared by migration tools.
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,13 +14,14 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import EdkLogger
 from optparse import OptionParser
 from Common.BuildToolError import *
 from XmlRoutines import *
 from CommonDataClass.CommonClass import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Set all fields of CommonClass object.
 #
diff --git a/BaseTools/Source/Python/Common/Misc.py b/BaseTools/Source/Python/Common/Misc.py
index 7b568dc3e5..e9e41de02e 100644
--- a/BaseTools/Source/Python/Common/Misc.py
+++ b/BaseTools/Source/Python/Common/Misc.py
@@ -1,7 +1,7 @@
 ## @file
 # Common routines used by all tools
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import sys
 import string
 import thread
@@ -32,6 +32,7 @@ from DataType import *
 from BuildToolError import *
 from CommonDataClass.DataClass import *
 from Parsing import GetSplitValueList
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Regular expression used to find out place holders in string template
 gPlaceholderPattern = re.compile("\$\{([^$()\s]+)\}", re.MULTILINE|re.UNICODE)
diff --git a/BaseTools/Source/Python/Common/String.py b/BaseTools/Source/Python/Common/String.py
index 04b45a0b83..4dc8e9b116 100644
--- a/BaseTools/Source/Python/Common/String.py
+++ b/BaseTools/Source/Python/Common/String.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define common string related functions used in parsing process
 #
-# Copyright (c) 2007 - 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -16,13 +16,14 @@
 #
 import re
 import DataType
-import os.path
+import Common.LongFilePathOs as os
 import string
 import EdkLogger as EdkLogger
 
 import GlobalData
 from BuildToolError import *
 from CommonDataClass.Exceptions import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 gHexVerPatt = re.compile('0x[a-f0-9]{4}[a-f0-9]{4}$', re.IGNORECASE)
 gHumanReadableVerPatt = re.compile(r'([1-9][0-9]*|0)\.[0-9]{1,2}$')
diff --git a/BaseTools/Source/Python/Common/TargetTxtClassObject.py b/BaseTools/Source/Python/Common/TargetTxtClassObject.py
index a7dec65a25..89e3937086 100644
--- a/BaseTools/Source/Python/Common/TargetTxtClassObject.py
+++ b/BaseTools/Source/Python/Common/TargetTxtClassObject.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of Target.txt file
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,11 +14,12 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import EdkLogger
 import DataType
 from BuildToolError import *
 import GlobalData
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 gDefaultTargetTxtFile = "Conf/target.txt"
 
diff --git a/BaseTools/Source/Python/Common/ToolDefClassObject.py b/BaseTools/Source/Python/Common/ToolDefClassObject.py
index 0f49457449..583d51b513 100644
--- a/BaseTools/Source/Python/Common/ToolDefClassObject.py
+++ b/BaseTools/Source/Python/Common/ToolDefClassObject.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of tools_def.txt file
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,13 +14,14 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import EdkLogger
 
 from Dictionary import *
 from BuildToolError import *
 from TargetTxtClassObject import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ##
 # Static variables used for pattern
diff --git a/BaseTools/Source/Python/Common/VpdInfoFile.py b/BaseTools/Source/Python/Common/VpdInfoFile.py
index 18f6f5663c..1a68e9bee1 100644
--- a/BaseTools/Source/Python/Common/VpdInfoFile.py
+++ b/BaseTools/Source/Python/Common/VpdInfoFile.py
@@ -6,7 +6,7 @@
 # is pointed by *_*_*_VPD_TOOL_GUID in conf/tools_def.txt 
 #
 #
-# Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2010 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,11 +15,12 @@
 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import Common.EdkLogger as EdkLogger
 import Common.BuildToolError as BuildToolError
 import subprocess
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 FILE_COMMENT_TEMPLATE = \
 """
diff --git a/BaseTools/Source/Python/Ecc/Check.py b/BaseTools/Source/Python/Ecc/Check.py
index c1ac07e852..4e7ffe7aca 100644
--- a/BaseTools/Source/Python/Ecc/Check.py
+++ b/BaseTools/Source/Python/Ecc/Check.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define checkpoints used by ECC tool
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -10,7 +10,7 @@
 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #
-import os
+import Common.LongFilePathOs as os
 import re
 from CommonDataClass.DataClass import *
 from Common.DataType import SUP_MODULE_LIST_STRING, TAB_VALUE_SPLIT
diff --git a/BaseTools/Source/Python/Ecc/CodeFragmentCollector.py b/BaseTools/Source/Python/Ecc/CodeFragmentCollector.py
index 134b15f81e..171600feeb 100644
--- a/BaseTools/Source/Python/Ecc/CodeFragmentCollector.py
+++ b/BaseTools/Source/Python/Ecc/CodeFragmentCollector.py
@@ -1,7 +1,7 @@
 ## @file
 # preprocess source file
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,7 +17,7 @@
 #
 
 import re
-import os
+import Common.LongFilePathOs as os
 import sys
 
 import antlr3
diff --git a/BaseTools/Source/Python/Ecc/Configuration.py b/BaseTools/Source/Python/Ecc/Configuration.py
index 4f93d79661..72bfbc709b 100644
--- a/BaseTools/Source/Python/Ecc/Configuration.py
+++ b/BaseTools/Source/Python/Ecc/Configuration.py
@@ -14,10 +14,11 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import Common.EdkLogger as EdkLogger
 from Common.DataType import *
 from Common.String import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Configuration
 #
diff --git a/BaseTools/Source/Python/Ecc/Database.py b/BaseTools/Source/Python/Ecc/Database.py
index f3e2b5934a..2041175124 100644
--- a/BaseTools/Source/Python/Ecc/Database.py
+++ b/BaseTools/Source/Python/Ecc/Database.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create a database used by ECC tool
 #
-# Copyright (c) 2007 - 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,7 +15,7 @@
 # Import Modules
 #
 import sqlite3
-import os, time
+import Common.LongFilePathOs as os, time
 
 import Common.EdkLogger as EdkLogger
 import CommonDataClass.DataClass as DataClass
diff --git a/BaseTools/Source/Python/Ecc/Ecc.py b/BaseTools/Source/Python/Ecc/Ecc.py
index b5d733e48e..72f22d5b22 100644
--- a/BaseTools/Source/Python/Ecc/Ecc.py
+++ b/BaseTools/Source/Python/Ecc/Ecc.py
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os, time, glob, sys
+import Common.LongFilePathOs as os, time, glob, sys
 import Common.EdkLogger as EdkLogger
 import Database
 import EccGlobalData
@@ -37,6 +37,7 @@ from MetaFileWorkspace.MetaFileTable import MetaFileStorage
 import c
 import re, string
 from Exception import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Ecc
 #
diff --git a/BaseTools/Source/Python/Ecc/EccGlobalData.py b/BaseTools/Source/Python/Ecc/EccGlobalData.py
index 5226e4a7d1..a20d6ead48 100644
--- a/BaseTools/Source/Python/Ecc/EccGlobalData.py
+++ b/BaseTools/Source/Python/Ecc/EccGlobalData.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to save global datas used by ECC tool
 #
-# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 
 gWorkspace = ''
 gTarget = ''
diff --git a/BaseTools/Source/Python/Ecc/Exception.py b/BaseTools/Source/Python/Ecc/Exception.py
index ffbb62b3b0..fffbf30a98 100644
--- a/BaseTools/Source/Python/Ecc/Exception.py
+++ b/BaseTools/Source/Python/Ecc/Exception.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to parse exception items found by ECC tool
 #
-# Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2009 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,7 +15,7 @@
 # Import Modules
 #
 from Xml.XmlRoutines import *
-import os.path
+import Common.LongFilePathOs as os
 
 # ExceptionXml to parse Exception Node of XML file
 class ExceptionXml(object):
diff --git a/BaseTools/Source/Python/Ecc/FileProfile.py b/BaseTools/Source/Python/Ecc/FileProfile.py
index 689aee0975..f31d37ff96 100644
--- a/BaseTools/Source/Python/Ecc/FileProfile.py
+++ b/BaseTools/Source/Python/Ecc/FileProfile.py
@@ -1,7 +1,7 @@
 ## @file
 # fragments of source file
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,8 +17,9 @@
 #
 
 import re
-import os
+import Common.LongFilePathOs as os
 from ParserWarning import Warning
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 CommentList = []
 PPDirectiveList = []
diff --git a/BaseTools/Source/Python/Ecc/MetaDataParser.py b/BaseTools/Source/Python/Ecc/MetaDataParser.py
index bbafa00ddd..98b16a0e5c 100644
--- a/BaseTools/Source/Python/Ecc/MetaDataParser.py
+++ b/BaseTools/Source/Python/Ecc/MetaDataParser.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define common parser functions for meta-data
 #
-# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #
 
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.DataClass import *
 from EccToolError import *
 import EccGlobalData
diff --git a/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaDataTable.py b/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaDataTable.py
index 643c228665..0d53f05d8b 100644
--- a/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaDataTable.py
+++ b/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaDataTable.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create/update/query/erase table for files
 #
-# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 
 import Common.EdkLogger as EdkLogger
 from CommonDataClass import DataClass
diff --git a/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py b/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py
index 405c5b5b03..949d067945 100644
--- a/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py
+++ b/BaseTools/Source/Python/Ecc/MetaFileWorkspace/MetaFileParser.py
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import time
 import copy
@@ -31,7 +31,8 @@ from Common.Expression import *
 from CommonDataClass.Exceptions import *
 
 from MetaFileTable import MetaFileStorage
-from GenFds.FdfParser import FdfParser  
+from GenFds.FdfParser import FdfParser
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## A decorator used to parse macro definition
 def ParseMacro(Parser):
diff --git a/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py b/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py
index 5823067056..b93588eea6 100644
--- a/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py
+++ b/BaseTools/Source/Python/Ecc/Xml/XmlRoutines.py
@@ -2,7 +2,7 @@
 # This is an XML API that uses a syntax similar to XPath, but it is written in
 # standard python so that no extra python packages are required to use it.
 #
-# Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -16,6 +16,7 @@
 # Import Modules
 #
 import xml.dom.minidom
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Create a element of XML
 #
diff --git a/BaseTools/Source/Python/Ecc/c.py b/BaseTools/Source/Python/Ecc/c.py
index ea7d99fecd..6c20f6c9a3 100644
--- a/BaseTools/Source/Python/Ecc/c.py
+++ b/BaseTools/Source/Python/Ecc/c.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to be the c coding style checking of ECC tool
 #
-# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2009 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -12,7 +12,7 @@
 #
 
 import sys
-import os
+import Common.LongFilePathOs as os
 import re
 import string
 import CodeFragmentCollector
diff --git a/BaseTools/Source/Python/Eot/CodeFragmentCollector.py b/BaseTools/Source/Python/Eot/CodeFragmentCollector.py
index 4e8cef2c42..bb78a0f882 100644
--- a/BaseTools/Source/Python/Eot/CodeFragmentCollector.py
+++ b/BaseTools/Source/Python/Eot/CodeFragmentCollector.py
@@ -1,7 +1,7 @@
 ## @file
 # preprocess source file
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -16,7 +16,7 @@
 # Import Modules
 #
 import re
-import os
+import Common.LongFilePathOs as os
 import sys
 
 import antlr3
diff --git a/BaseTools/Source/Python/Eot/Database.py b/BaseTools/Source/Python/Eot/Database.py
index ce38a0fa92..65bac9c127 100644
--- a/BaseTools/Source/Python/Eot/Database.py
+++ b/BaseTools/Source/Python/Eot/Database.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create a database used by EOT tool
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,7 +15,7 @@
 # Import Modules
 #
 import sqlite3
-import os, time
+import Common.LongFilePathOs as os, time
 
 import Common.EdkLogger as EdkLogger
 import CommonDataClass.DataClass as DataClass
diff --git a/BaseTools/Source/Python/Eot/Eot.py b/BaseTools/Source/Python/Eot/Eot.py
index 029caedabc..5029f7369d 100644
--- a/BaseTools/Source/Python/Eot/Eot.py
+++ b/BaseTools/Source/Python/Eot/Eot.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to be the main entrance of EOT tool
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os, time, glob
+import Common.LongFilePathOs as os, time, glob
 import Common.EdkLogger as EdkLogger
 import EotGlobalData
 from optparse import OptionParser
@@ -30,6 +30,7 @@ from Report import Report
 from Common.Misc import ParseConsoleLog
 from Common.BuildVersion import gBUILD_VERSION
 from Parser import ConvertGuid
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Class Eot
 #
diff --git a/BaseTools/Source/Python/Eot/EotGlobalData.py b/BaseTools/Source/Python/Eot/EotGlobalData.py
index 43fd57a8de..dd4ff4cf5e 100644
--- a/BaseTools/Source/Python/Eot/EotGlobalData.py
+++ b/BaseTools/Source/Python/Eot/EotGlobalData.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to save global datas
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -12,6 +12,7 @@
 #
 
 from Common.Misc import sdict
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 gEFI_SOURCE = ''
 gEDK_SOURCE = ''
diff --git a/BaseTools/Source/Python/Eot/FileProfile.py b/BaseTools/Source/Python/Eot/FileProfile.py
index b377ef6f41..0544c0d55b 100644
--- a/BaseTools/Source/Python/Eot/FileProfile.py
+++ b/BaseTools/Source/Python/Eot/FileProfile.py
@@ -1,7 +1,7 @@
 ## @file
 # fragments of source file
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,8 +17,9 @@
 #
 
 import re
-import os
+import Common.LongFilePathOs as os
 from ParserWarning import Warning
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 # Profile contents of a file
 PPDirectiveList = []
diff --git a/BaseTools/Source/Python/Eot/FvImage.py b/BaseTools/Source/Python/Eot/FvImage.py
index f668a17c09..f2a9bc6801 100644
--- a/BaseTools/Source/Python/Eot/FvImage.py
+++ b/BaseTools/Source/Python/Eot/FvImage.py
@@ -1,7 +1,7 @@
 ## @file
 # Parse FV image
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -13,7 +13,7 @@
 
 ## Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import sys
 import uuid
@@ -24,7 +24,7 @@ import copy
 from UserDict import IterableUserDict
 from cStringIO import StringIO
 from array import array
-
+from Common.LongFilePathSupport import OpenLongFilePath as open
 from CommonDataClass import *
 from Common.Misc import sdict, GuidStructureStringToGuidString
 
diff --git a/BaseTools/Source/Python/Eot/InfParserLite.py b/BaseTools/Source/Python/Eot/InfParserLite.py
index 6750f5a0c9..6bb2c5f9f1 100644
--- a/BaseTools/Source/Python/Eot/InfParserLite.py
+++ b/BaseTools/Source/Python/Eot/InfParserLite.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to parse INF file of EDK project
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import Common.EdkLogger as EdkLogger
 from Common.DataType import *
 from CommonDataClass.DataClass import *
diff --git a/BaseTools/Source/Python/Eot/Parser.py b/BaseTools/Source/Python/Eot/Parser.py
index d5419d0e06..ab19e30b69 100644
--- a/BaseTools/Source/Python/Eot/Parser.py
+++ b/BaseTools/Source/Python/Eot/Parser.py
@@ -2,7 +2,7 @@
 # This file is used to define common parsing related functions used in parsing
 # Inf/Dsc/Makefile process
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,7 +15,7 @@
 ##
 # Import Modules
 #
-import os, re
+import Common.LongFilePathOs as os, re
 import Common.EdkLogger as EdkLogger
 from Common.DataType import *
 from CommonDataClass.DataClass import *
@@ -23,6 +23,7 @@ from Common.String import CleanString, GetSplitValueList, ReplaceMacro
 import EotGlobalData
 from Common.Misc import sdict
 from Common.String import GetSplitList
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## PreProcess() method
 #
diff --git a/BaseTools/Source/Python/Eot/Report.py b/BaseTools/Source/Python/Eot/Report.py
index 024f6d87be..386e3eb8ec 100644
--- a/BaseTools/Source/Python/Eot/Report.py
+++ b/BaseTools/Source/Python/Eot/Report.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create report for Eot tool
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,8 +14,9 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import EotGlobalData
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Report() class
 #
diff --git a/BaseTools/Source/Python/Eot/c.py b/BaseTools/Source/Python/Eot/c.py
index 02ff959958..8199ce5ee7 100644
--- a/BaseTools/Source/Python/Eot/c.py
+++ b/BaseTools/Source/Python/Eot/c.py
@@ -1,7 +1,7 @@
 ## @file
 # preprocess source file
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -16,7 +16,7 @@
 # Import Modules
 #
 import sys
-import os
+import Common.LongFilePathOs as os
 import re
 import CodeFragmentCollector
 import FileProfile
diff --git a/BaseTools/Source/Python/GenFds/AprioriSection.py b/BaseTools/Source/Python/GenFds/AprioriSection.py
index a6dace82a6..a2306d062d 100644
--- a/BaseTools/Source/Python/GenFds/AprioriSection.py
+++ b/BaseTools/Source/Python/GenFds/AprioriSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process APRIORI file data and generate PEI/DXE APRIORI file
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -16,7 +16,7 @@
 # Import Modules
 #
 from struct import *
-import os
+import Common.LongFilePathOs as os
 import StringIO
 import FfsFileStatement
 from GenFdsGlobalVariable import GenFdsGlobalVariable
diff --git a/BaseTools/Source/Python/GenFds/Capsule.py b/BaseTools/Source/Python/GenFds/Capsule.py
index fb9213b467..85f95a69c1 100644
--- a/BaseTools/Source/Python/GenFds/Capsule.py
+++ b/BaseTools/Source/Python/GenFds/Capsule.py
@@ -1,7 +1,7 @@
 ## @file
 # generate capsule
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,7 +17,7 @@
 #
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 from CommonDataClass.FdfClass import CapsuleClassObject
-import os
+import Common.LongFilePathOs as os
 import subprocess
 import StringIO
 from Common.Misc import SaveFileOnChange
diff --git a/BaseTools/Source/Python/GenFds/CompressSection.py b/BaseTools/Source/Python/GenFds/CompressSection.py
index 4bcf286c23..9d9c9cfdf7 100644
--- a/BaseTools/Source/Python/GenFds/CompressSection.py
+++ b/BaseTools/Source/Python/GenFds/CompressSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process compress section generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
diff --git a/BaseTools/Source/Python/GenFds/DataSection.py b/BaseTools/Source/Python/GenFds/DataSection.py
index 0f41953ad4..ba3677ed89 100644
--- a/BaseTools/Source/Python/GenFds/DataSection.py
+++ b/BaseTools/Source/Python/GenFds/DataSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process data section generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -19,10 +19,10 @@ import Section
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 import subprocess
 from Ffs import Ffs
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.FdfClass import DataSectionClassObject
 from Common.Misc import PeImageClass
-import shutil
+from Common.LongFilePathSupport import CopyLongFilePath
 
 ## generate data section
 #
@@ -71,9 +71,8 @@ class DataSection (DataSectionClassObject):
             MapFile = Filename.replace('.efi', '.map')
             if os.path.exists(MapFile):
                 CopyMapFile = os.path.join(OutputPath, ModuleName + '.map')
-                if not os.path.exists(CopyMapFile) or \
-                    (os.path.getmtime(MapFile) > os.path.getmtime(CopyMapFile)):
-                    shutil.copyfile(MapFile, CopyMapFile)
+                if not os.path.exists(CopyMapFile) or (os.path.getmtime(MapFile) > os.path.getmtime(CopyMapFile)):
+                    CopyLongFilePath(MapFile, CopyMapFile)
 
         #Get PE Section alignment when align is set to AUTO
         if self.Alignment == 'Auto' and self.SecType in ('TE', 'PE32'):
@@ -92,7 +91,7 @@ class DataSection (DataSectionClassObject):
             FileBeforeStrip = os.path.join(OutputPath, ModuleName + '.efi')
             if not os.path.exists(FileBeforeStrip) or \
                 (os.path.getmtime(self.SectFileName) > os.path.getmtime(FileBeforeStrip)):
-                shutil.copyfile(self.SectFileName, FileBeforeStrip)
+                CopyLongFilePath(self.SectFileName, FileBeforeStrip)
             StrippedFile = os.path.join(OutputPath, ModuleName + '.stripped')
             GenFdsGlobalVariable.GenerateFirmwareImage(
                                     StrippedFile,
diff --git a/BaseTools/Source/Python/GenFds/DepexSection.py b/BaseTools/Source/Python/GenFds/DepexSection.py
index b7b1ae7d93..c048efe478 100644
--- a/BaseTools/Source/Python/GenFds/DepexSection.py
+++ b/BaseTools/Source/Python/GenFds/DepexSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process depex section generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -19,10 +19,9 @@ import Section
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 import subprocess
 from Ffs import Ffs
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.FdfClass import DepexSectionClassObject
 from AutoGen.GenDepex import DependencyExpression
-import shutil
 from Common import EdkLogger
 from Common.BuildToolError import *
 
diff --git a/BaseTools/Source/Python/GenFds/EfiSection.py b/BaseTools/Source/Python/GenFds/EfiSection.py
index 3eb4e23842..15ebac5705 100644
--- a/BaseTools/Source/Python/GenFds/EfiSection.py
+++ b/BaseTools/Source/Python/GenFds/EfiSection.py
@@ -20,12 +20,13 @@ import Section
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 import subprocess
 from Ffs import Ffs
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.FdfClass import EfiSectionClassObject
-import shutil
 from Common import EdkLogger
 from Common.BuildToolError import *
 from Common.Misc import PeImageClass
+from Common.LongFilePathSupport import OpenLongFilePath as open
+from Common.LongFilePathSupport import CopyLongFilePath
 
 ## generate rule section
 #
@@ -237,14 +238,14 @@ class EfiSection (EfiSectionClassObject):
                         if os.path.exists(MapFile):
                             CopyMapFile = os.path.join(OutputPath, ModuleName + '.map')
                             if not os.path.exists(CopyMapFile) or \
-                                (os.path.getmtime(MapFile) > os.path.getmtime(CopyMapFile)):
-                                shutil.copyfile(MapFile, CopyMapFile)
+                                   (os.path.getmtime(MapFile) > os.path.getmtime(CopyMapFile)):
+                                CopyLongFilePath(MapFile, CopyMapFile)
 
                     if not NoStrip:
                         FileBeforeStrip = os.path.join(OutputPath, ModuleName + '.efi')
                         if not os.path.exists(FileBeforeStrip) or \
                             (os.path.getmtime(File) > os.path.getmtime(FileBeforeStrip)):
-                            shutil.copyfile(File, FileBeforeStrip)
+                            CopyLongFilePath(File, FileBeforeStrip)
                         StrippedFile = os.path.join(OutputPath, ModuleName + '.stripped')
                         GenFdsGlobalVariable.GenerateFirmwareImage(
                                                 StrippedFile,
diff --git a/BaseTools/Source/Python/GenFds/Fd.py b/BaseTools/Source/Python/GenFds/Fd.py
index 3716549cba..0c06ff57dc 100644
--- a/BaseTools/Source/Python/GenFds/Fd.py
+++ b/BaseTools/Source/Python/GenFds/Fd.py
@@ -1,7 +1,7 @@
 ## @file
 # process FD generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,7 +17,7 @@
 #
 import Region
 import Fv
-import os
+import Common.LongFilePathOs as os
 import StringIO
 import sys
 from struct import *
diff --git a/BaseTools/Source/Python/GenFds/FdfParser.py b/BaseTools/Source/Python/GenFds/FdfParser.py
index f1e03f4c3f..01dab7bdab 100644
--- a/BaseTools/Source/Python/GenFds/FdfParser.py
+++ b/BaseTools/Source/Python/GenFds/FdfParser.py
@@ -55,7 +55,8 @@ from Common.String import ReplaceMacro
 from Common.Misc import tdict
 
 import re
-import os
+import Common.LongFilePathOs as os
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ##define T_CHAR_SPACE                ' '
 ##define T_CHAR_NULL                 '\0'
diff --git a/BaseTools/Source/Python/GenFds/FfsFileStatement.py b/BaseTools/Source/Python/GenFds/FfsFileStatement.py
index d0dec380fb..a765f9e04a 100644
--- a/BaseTools/Source/Python/GenFds/FfsFileStatement.py
+++ b/BaseTools/Source/Python/GenFds/FfsFileStatement.py
@@ -1,7 +1,7 @@
 ## @file
 # process FFS generation from FILE statement
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,7 +17,7 @@
 #
 import Ffs
 import Rule
-import os
+import Common.LongFilePathOs as os
 import StringIO
 import subprocess
 
diff --git a/BaseTools/Source/Python/GenFds/FfsInfStatement.py b/BaseTools/Source/Python/GenFds/FfsInfStatement.py
index feab8c84a0..a7a65919d7 100644
--- a/BaseTools/Source/Python/GenFds/FfsInfStatement.py
+++ b/BaseTools/Source/Python/GenFds/FfsInfStatement.py
@@ -1,7 +1,7 @@
 ## @file
 # process FFS generation from INF statement
 #
-#  Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -16,8 +16,7 @@
 # Import Modules
 #
 import Rule
-import os
-import shutil
+import Common.LongFilePathOs as os
 import StringIO
 from struct import *
 from GenFdsGlobalVariable import GenFdsGlobalVariable
@@ -38,6 +37,8 @@ from FvImageSection import FvImageSection
 from Common.Misc import PeImageClass
 from AutoGen.GenDepex import DependencyExpression
 from PatchPcdValue.PatchPcdValue import PatchBinaryFile
+from Common.LongFilePathSupport import CopyLongFilePath
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## generate FFS from INF
 #
@@ -322,7 +323,7 @@ class FfsInfStatement(FfsInfStatementClassObject):
             return EfiFile
         Basename = os.path.basename(EfiFile)
         Output = os.path.join(self.OutputPath, Basename)
-        shutil.copy(EfiFile, Output)
+        CopyLongFilePath(EfiFile, Output)
         for Pcd in self.PatchPcds:
             RetVal, RetStr = PatchBinaryFile(Output, int(Pcd.Offset, 0), Pcd.DatumType, Pcd.DefaultValue, Pcd.MaxDatumSize)
             if RetVal:
@@ -648,8 +649,8 @@ class FfsInfStatement(FfsInfStatementClassObject):
                 if not NoStrip:
                     FileBeforeStrip = os.path.join(self.OutputPath, ModuleName + '.reloc')
                     if not os.path.exists(FileBeforeStrip) or \
-                        (os.path.getmtime(File) > os.path.getmtime(FileBeforeStrip)):
-                        shutil.copyfile(File, FileBeforeStrip)
+                           (os.path.getmtime(File) > os.path.getmtime(FileBeforeStrip)):
+                        CopyLongFilePath(File, FileBeforeStrip)
                     StrippedFile = os.path.join(self.OutputPath, ModuleName + '.stipped')
                     GenFdsGlobalVariable.GenerateFirmwareImage(
                                             StrippedFile,
@@ -687,8 +688,9 @@ class FfsInfStatement(FfsInfStatementClassObject):
             if not NoStrip:
                 FileBeforeStrip = os.path.join(self.OutputPath, ModuleName + '.reloc')
                 if not os.path.exists(FileBeforeStrip) or \
-                    (os.path.getmtime(GenSecInputFile) > os.path.getmtime(FileBeforeStrip)):
-                    shutil.copyfile(GenSecInputFile, FileBeforeStrip)
+                       (os.path.getmtime(GenSecInputFile) > os.path.getmtime(FileBeforeStrip)):
+                    CopyLongFilePath(GenSecInputFile, FileBeforeStrip)
+
                 StrippedFile = os.path.join(self.OutputPath, ModuleName + '.stipped')
                 GenFdsGlobalVariable.GenerateFirmwareImage(
                                         StrippedFile,
diff --git a/BaseTools/Source/Python/GenFds/Fv.py b/BaseTools/Source/Python/GenFds/Fv.py
index 781c1a045d..03a742696f 100644
--- a/BaseTools/Source/Python/GenFds/Fv.py
+++ b/BaseTools/Source/Python/GenFds/Fv.py
@@ -1,7 +1,7 @@
 ## @file
 # process FV generation
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -15,8 +15,7 @@
 ##
 # Import Modules
 #
-import os
-import shutil
+import Common.LongFilePathOs as os
 import subprocess
 import StringIO
 from struct import *
@@ -27,6 +26,8 @@ from GenFdsGlobalVariable import GenFdsGlobalVariable
 from GenFds import GenFds
 from CommonDataClass.FdfClass import FvClassObject
 from Common.Misc import SaveFileOnChange
+from Common.LongFilePathSupport import CopyLongFilePath
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 T_CHAR_LF = '\n'
 
@@ -128,7 +129,7 @@ class FV (FvClassObject):
             FvOutputFile = self.CreateFileName
 
         FvInfoFileName = os.path.join(GenFdsGlobalVariable.FfsDir, self.UiFvName + '.inf')
-        shutil.copy(GenFdsGlobalVariable.FvAddressFileName, FvInfoFileName)
+        CopyLongFilePath(GenFdsGlobalVariable.FvAddressFileName, FvInfoFileName)
         OrigFvInfo = None
         if os.path.exists (FvInfoFileName):
             OrigFvInfo = open(FvInfoFileName, 'r').read()
diff --git a/BaseTools/Source/Python/GenFds/FvImageSection.py b/BaseTools/Source/Python/GenFds/FvImageSection.py
index f5d3f4f9a5..caf8de11e5 100644
--- a/BaseTools/Source/Python/GenFds/FvImageSection.py
+++ b/BaseTools/Source/Python/GenFds/FvImageSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process FV image section generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -20,7 +20,7 @@ import StringIO
 from Ffs import Ffs
 import subprocess
 from GenFdsGlobalVariable import GenFdsGlobalVariable
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.FdfClass import FvImageSectionClassObject
 from Common import EdkLogger
 from Common.BuildToolError import *
diff --git a/BaseTools/Source/Python/GenFds/GenFds.py b/BaseTools/Source/Python/GenFds/GenFds.py
index c0762edf22..087f7ab356 100644
--- a/BaseTools/Source/Python/GenFds/GenFds.py
+++ b/BaseTools/Source/Python/GenFds/GenFds.py
@@ -1,7 +1,7 @@
 ## @file
 # generate flash image
 #
-#  Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,7 +17,7 @@
 #
 from optparse import OptionParser
 import sys
-import os
+import Common.LongFilePathOs as os
 import linecache
 import FdfParser
 import Common.BuildToolError as BuildToolError
@@ -42,7 +42,7 @@ from Common.BuildVersion import gBUILD_VERSION
 ## Version and Copyright
 versionNumber = "1.0" + ' ' + gBUILD_VERSION
 __version__ = "%prog Version " + versionNumber
-__copyright__ = "Copyright (c) 2007 - 2013, Intel Corporation  All rights reserved."
+__copyright__ = "Copyright (c) 2007 - 2014, Intel Corporation  All rights reserved."
 
 ## Tool entrance method
 #
diff --git a/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py b/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py
index cbf3d980a8..f97b41b834 100644
--- a/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py
+++ b/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py
@@ -1,7 +1,7 @@
 ## @file
 # Global variables for GenFds
 #
-#  Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -15,7 +15,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import sys
 import subprocess
 import struct
@@ -30,6 +30,7 @@ from Common.ToolDefClassObject import ToolDefClassObject
 from AutoGen.BuildEngine import BuildRule
 import Common.DataType as DataType
 from Common.Misc import PathClass
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Global variables
 #
diff --git a/BaseTools/Source/Python/GenFds/GuidSection.py b/BaseTools/Source/Python/GenFds/GuidSection.py
index 36ad4f58ef..97d8ba8f76 100644
--- a/BaseTools/Source/Python/GenFds/GuidSection.py
+++ b/BaseTools/Source/Python/GenFds/GuidSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process GUIDed section generation
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -18,7 +18,7 @@
 import Section
 import subprocess
 from Ffs import Ffs
-import os
+import Common.LongFilePathOs as os
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 from CommonDataClass.FdfClass import GuidSectionClassObject
 from Common import ToolDefClassObject
@@ -26,6 +26,7 @@ import sys
 from Common import EdkLogger
 from Common.BuildToolError import *
 from FvImageSection import FvImageSection
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## generate GUIDed section
 #
diff --git a/BaseTools/Source/Python/GenFds/OptRomFileStatement.py b/BaseTools/Source/Python/GenFds/OptRomFileStatement.py
index a98d208e1d..5e3273d0f8 100644
--- a/BaseTools/Source/Python/GenFds/OptRomFileStatement.py
+++ b/BaseTools/Source/Python/GenFds/OptRomFileStatement.py
@@ -1,7 +1,7 @@
 ## @file
 # process OptionROM generation from FILE statement
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -15,7 +15,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 ## 
diff --git a/BaseTools/Source/Python/GenFds/OptionRom.py b/BaseTools/Source/Python/GenFds/OptionRom.py
index ce46413bf6..94f77f60e8 100644
--- a/BaseTools/Source/Python/GenFds/OptionRom.py
+++ b/BaseTools/Source/Python/GenFds/OptionRom.py
@@ -1,7 +1,7 @@
 ## @file
 # process OptionROM generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -15,8 +15,7 @@
 ##
 # Import Modules
 #
-import os
-import shutil
+import Common.LongFilePathOs as os
 import subprocess
 import StringIO
 
diff --git a/BaseTools/Source/Python/GenFds/Region.py b/BaseTools/Source/Python/GenFds/Region.py
index 7879a9e29c..15b2ecba90 100644
--- a/BaseTools/Source/Python/GenFds/Region.py
+++ b/BaseTools/Source/Python/GenFds/Region.py
@@ -1,7 +1,7 @@
 ## @file
 # process FD Region generation
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -19,10 +19,11 @@ from struct import *
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 import StringIO
 from CommonDataClass.FdfClass import RegionClassObject
-import os
+import Common.LongFilePathOs as os
 from stat import *
 from Common import EdkLogger
 from Common.BuildToolError import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## generate Region
 #
diff --git a/BaseTools/Source/Python/GenFds/Section.py b/BaseTools/Source/Python/GenFds/Section.py
index 819bb51a78..e32041d6a5 100644
--- a/BaseTools/Source/Python/GenFds/Section.py
+++ b/BaseTools/Source/Python/GenFds/Section.py
@@ -1,7 +1,7 @@
 ## @file
 # section base class
 #
-#  Copyright (c) 2007-2011, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007-2014, 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
@@ -17,7 +17,7 @@
 #
 from CommonDataClass.FdfClass import SectionClassObject
 from GenFdsGlobalVariable import GenFdsGlobalVariable
-import os, glob
+import Common.LongFilePathOs as os, glob
 from Common import EdkLogger
 from Common.BuildToolError import *
 
diff --git a/BaseTools/Source/Python/GenFds/UiSection.py b/BaseTools/Source/Python/GenFds/UiSection.py
index e1b69ed133..e4f3647f13 100644
--- a/BaseTools/Source/Python/GenFds/UiSection.py
+++ b/BaseTools/Source/Python/GenFds/UiSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process UI section generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -18,9 +18,10 @@
 import Section
 from Ffs import Ffs
 import subprocess
-import os
+import Common.LongFilePathOs as os
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 from CommonDataClass.FdfClass import UiSectionClassObject
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## generate UI section
 #
diff --git a/BaseTools/Source/Python/GenFds/VerSection.py b/BaseTools/Source/Python/GenFds/VerSection.py
index 8f6da9624f..657ebd9d16 100644
--- a/BaseTools/Source/Python/GenFds/VerSection.py
+++ b/BaseTools/Source/Python/GenFds/VerSection.py
@@ -1,7 +1,7 @@
 ## @file
 # process Version section generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -17,10 +17,11 @@
 #
 from Ffs import Ffs
 import Section
-import os
+import Common.LongFilePathOs as os
 import subprocess
 from GenFdsGlobalVariable import GenFdsGlobalVariable
 from CommonDataClass.FdfClass import VerSectionClassObject
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## generate version section
 #
diff --git a/BaseTools/Source/Python/GenFds/Vtf.py b/BaseTools/Source/Python/GenFds/Vtf.py
index e7e36491db..64b5d77138 100644
--- a/BaseTools/Source/Python/GenFds/Vtf.py
+++ b/BaseTools/Source/Python/GenFds/Vtf.py
@@ -1,7 +1,7 @@
 ## @file
 # process VTF generation
 #
-#  Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -16,8 +16,9 @@
 # Import Modules
 #
 from GenFdsGlobalVariable import GenFdsGlobalVariable
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.FdfClass import VtfClassObject
+from Common.LongFilePathSupport import OpenLongFilePath as open
 T_CHAR_LF = '\n'
 
 ## generate VTF
diff --git a/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py b/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py
index 9cfdad3171..50d99f7267 100644
--- a/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py
+++ b/BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py
@@ -5,7 +5,7 @@
 #    PCD Name    Offset in binary
 #    ========    ================
 #
-# Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -18,7 +18,7 @@
 
 #======================================  External Libraries ========================================
 import optparse
-import os
+import Common.LongFilePathOs as os
 import re
 import array
 
@@ -26,6 +26,7 @@ from Common.BuildToolError import *
 import Common.EdkLogger as EdkLogger
 from Common.Misc import PeImageClass
 from Common.BuildVersion import gBUILD_VERSION
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 # Version and Copyright
 __version_number__ = ("0.10" + " " + gBUILD_VERSION)
diff --git a/BaseTools/Source/Python/PatchPcdValue/PatchPcdValue.py b/BaseTools/Source/Python/PatchPcdValue/PatchPcdValue.py
index 01b87012cd..1b3a0ec93d 100644
--- a/BaseTools/Source/Python/PatchPcdValue/PatchPcdValue.py
+++ b/BaseTools/Source/Python/PatchPcdValue/PatchPcdValue.py
@@ -1,7 +1,7 @@
 ## @file
 # Patch value into the binary file.
 #
-# Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2010 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,8 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
+from Common.LongFilePathSupport import OpenLongFilePath as open
 import sys
 import re
 
diff --git a/BaseTools/Source/Python/Table/TableEotReport.py b/BaseTools/Source/Python/Table/TableEotReport.py
index dd465b68b2..740105c8f9 100644
--- a/BaseTools/Source/Python/Table/TableEotReport.py
+++ b/BaseTools/Source/Python/Table/TableEotReport.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create/update/query/erase table for ECC reports
 #
-# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,7 +15,7 @@
 # Import Modules
 #
 import Common.EdkLogger as EdkLogger
-import os, time
+import Common.LongFilePathOs as os, time
 from Table import Table
 from Common.String import ConvertToSqlString2
 import Eot.EotToolError as EotToolError
diff --git a/BaseTools/Source/Python/Table/TableFile.py b/BaseTools/Source/Python/Table/TableFile.py
index e43802ef25..caf749e9d3 100644
--- a/BaseTools/Source/Python/Table/TableFile.py
+++ b/BaseTools/Source/Python/Table/TableFile.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create/update/query/erase table for files
 #
-# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -17,7 +17,7 @@
 import Common.EdkLogger as EdkLogger
 from Table import Table
 from Common.String import ConvertToSqlString
-import os
+import Common.LongFilePathOs as os
 from CommonDataClass.DataClass import FileClass
 
 ## TableFile
diff --git a/BaseTools/Source/Python/Table/TableReport.py b/BaseTools/Source/Python/Table/TableReport.py
index 2e7fd539f7..4065a43c5b 100644
--- a/BaseTools/Source/Python/Table/TableReport.py
+++ b/BaseTools/Source/Python/Table/TableReport.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create/update/query/erase table for ECC reports
 #
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -15,11 +15,12 @@
 # Import Modules
 #
 import Common.EdkLogger as EdkLogger
-import os, time
+import Common.LongFilePathOs as os, time
 from Table import Table
 from Common.String import ConvertToSqlString2
 import EccToolError as EccToolError
 import EccGlobalData as EccGlobalData
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## TableReport
 #
diff --git a/BaseTools/Source/Python/TargetTool/TargetTool.py b/BaseTools/Source/Python/TargetTool/TargetTool.py
index 8126aac59c..7a366db5fb 100644
--- a/BaseTools/Source/Python/TargetTool/TargetTool.py
+++ b/BaseTools/Source/Python/TargetTool/TargetTool.py
@@ -1,5 +1,5 @@
 #
-#  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -10,7 +10,7 @@
 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #
 
-import os
+import Common.LongFilePathOs as os
 import sys
 import traceback
 from optparse import OptionParser
@@ -19,6 +19,7 @@ import Common.EdkLogger as EdkLogger
 import Common.BuildToolError as BuildToolError
 from Common.DataType import *
 from Common.BuildVersion import gBUILD_VERSION
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 # To Do 1.set clean, 2. add item, if the line is disabled.
 
diff --git a/BaseTools/Source/Python/Trim/Trim.py b/BaseTools/Source/Python/Trim/Trim.py
index c0ede03359..13485c72da 100644
--- a/BaseTools/Source/Python/Trim/Trim.py
+++ b/BaseTools/Source/Python/Trim/Trim.py
@@ -1,7 +1,7 @@
 ## @file
 # Trim files preprocessed by compiler
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import sys
 import re
 
@@ -24,6 +24,7 @@ from Common.BuildToolError import *
 from Common.Misc import *
 from Common.BuildVersion import gBUILD_VERSION
 import Common.EdkLogger as EdkLogger
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 # Version and Copyright
 __version_number__ = ("0.10" + " " + gBUILD_VERSION)
diff --git a/BaseTools/Source/Python/Workspace/BuildClassObject.py b/BaseTools/Source/Python/Workspace/BuildClassObject.py
index 7d709d3f0b..a95e3f39ab 100644
--- a/BaseTools/Source/Python/Workspace/BuildClassObject.py
+++ b/BaseTools/Source/Python/Workspace/BuildClassObject.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to define each component of the build database
 #
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #
 
-import os
+import Common.LongFilePathOs as os
 
 from Common.Misc import sdict
 from Common.Misc import RealPath2
diff --git a/BaseTools/Source/Python/Workspace/MetaDataTable.py b/BaseTools/Source/Python/Workspace/MetaDataTable.py
index 34ef4903df..ee4ba6869f 100644
--- a/BaseTools/Source/Python/Workspace/MetaDataTable.py
+++ b/BaseTools/Source/Python/Workspace/MetaDataTable.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to create/update/query/erase table for files
 #
-# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 
 import Common.EdkLogger as EdkLogger
 from CommonDataClass import DataClass
diff --git a/BaseTools/Source/Python/Workspace/MetaFileParser.py b/BaseTools/Source/Python/Workspace/MetaFileParser.py
index bc45a66e49..7e6e2db40d 100644
--- a/BaseTools/Source/Python/Workspace/MetaFileParser.py
+++ b/BaseTools/Source/Python/Workspace/MetaFileParser.py
@@ -1,7 +1,7 @@
 ## @file
 # This file is used to parse meta files
 #
-# Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -14,7 +14,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import time
 import copy
@@ -28,6 +28,7 @@ from Common.String import *
 from Common.Misc import GuidStructureStringToGuidString, CheckPcdDatum, PathClass, AnalyzePcdData, AnalyzeDscPcd
 from Common.Expression import *
 from CommonDataClass.Exceptions import *
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 from MetaFileTable import MetaFileStorage
 
diff --git a/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py b/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
index 6ebb7ee87d..b4109155a6 100644
--- a/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
+++ b/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
@@ -15,8 +15,7 @@
 # Import Modules
 #
 import sqlite3
-import os
-import os.path
+import Common.LongFilePathOs as os
 import pickle
 import uuid
 
diff --git a/BaseTools/Source/Python/build/BuildReport.py b/BaseTools/Source/Python/build/BuildReport.py
index 945ee1b573..327d5a5347 100644
--- a/BaseTools/Source/Python/build/BuildReport.py
+++ b/BaseTools/Source/Python/build/BuildReport.py
@@ -4,7 +4,7 @@
 # This module contains the functionality to generate build report after
 # build all target completes successfully.
 #
-# Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2010 - 2014, 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
 # which accompanies this distribution.  The full text of the license may be found at
@@ -16,7 +16,7 @@
 
 ## Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import platform
 import textwrap
@@ -40,6 +40,7 @@ from Common.DataType import TAB_SPACE_SPLIT
 from Common.DataType import TAB_BRG_PCD
 from Common.DataType import TAB_BRG_LIBRARY
 from Common.DataType import TAB_BACK_SLASH
+from Common.LongFilePathSupport import OpenLongFilePath as open
 
 ## Pattern to extract contents in EDK DXS files
 gDxsDependencyPattern = re.compile(r"DEPENDENCY_START(.+)DEPENDENCY_END", re.DOTALL)
diff --git a/BaseTools/Source/Python/build/build.py b/BaseTools/Source/Python/build/build.py
index fca36d1807..bd43f2cff1 100644
--- a/BaseTools/Source/Python/build/build.py
+++ b/BaseTools/Source/Python/build/build.py
@@ -1,7 +1,7 @@
 ## @file
 # build a platform or a module
 #
-#  Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2007 - 2014, 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
@@ -15,7 +15,7 @@
 ##
 # Import Modules
 #
-import os
+import Common.LongFilePathOs as os
 import re
 import StringIO
 import sys
@@ -31,6 +31,8 @@ from optparse import OptionParser
 from subprocess import *
 from Common import Misc as Utils
 
+from Common.LongFilePathSupport import OpenLongFilePath as open
+from Common.LongFilePathSupport import LongFilePath
 from Common.TargetTxtClassObject import *
 from Common.ToolDefClassObject import *
 from Common.DataType import *
@@ -49,7 +51,7 @@ import Common.GlobalData as GlobalData
 # Version and Copyright
 VersionNumber = "0.51" + ' ' + gBUILD_VERSION
 __version__ = "%prog Version " + VersionNumber
-__copyright__ = "Copyright (c) 2007 - 2013, Intel Corporation  All rights reserved."
+__copyright__ = "Copyright (c) 2007 - 2014, Intel Corporation  All rights reserved."
 
 ## standard targets of build command
 gSupportedTarget = ['all', 'genc', 'genmake', 'modules', 'libraries', 'fds', 'clean', 'cleanall', 'cleanlib', 'run']
@@ -1028,7 +1030,7 @@ class Build():
                 FvMapBuffer = os.path.join(Wa.FvDir, FvName + '.Fv.map')
                 if not os.path.exists(FvMapBuffer):
                     continue
-                FvMap = open (FvMapBuffer, 'r')
+                FvMap = open(FvMapBuffer, 'r')
                 #skip FV size information
                 FvMap.readline()
                 FvMap.readline()