[Patch 1/2] BaseTools: Convert Split tool to python

["Bob Feng" <bob.c.feng@intel.com>]

There are 2 reasons to convert Split tool from C to Python.
1. We are in the process of moving the Basetools Python code
to a separate repository. But there still are many C tools under
edk2/BaseTools. To make all Basetools be in the separate repo,
we can convert the C tools to Python tools.
2. The original Split tool is very slow. This python tool can reduce
90% time.

Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Yuwei Chen <yuwei.chen@intel.com>

---
 BaseTools/Source/C/Split/Split.c            | 466 --------------------
 BaseTools/BinWrappers/PosixLike/Split       |  31 +-
 BaseTools/BinWrappers/WindowsLike/Split.bat |   3 +
 BaseTools/Source/C/GNUmakefile              |   1 -
 BaseTools/Source/C/Makefile                 |   1 -
 BaseTools/Source/C/Split/GNUmakefile        |  17 -
 BaseTools/Source/C/Split/Makefile           |  16 -
 BaseTools/Source/Python/Split/Split.py      | 203 +++++++++
 BaseTools/Source/Python/Split/__init__.py   |  10 +
 9 files changed, 224 insertions(+), 524 deletions(-)
 delete mode 100644 BaseTools/Source/C/Split/Split.c
 create mode 100644 BaseTools/BinWrappers/WindowsLike/Split.bat
 delete mode 100644 BaseTools/Source/C/Split/GNUmakefile
 delete mode 100644 BaseTools/Source/C/Split/Makefile
 create mode 100644 BaseTools/Source/Python/Split/Split.py
 create mode 100644 BaseTools/Source/Python/Split/__init__.py

diff --git a/BaseTools/Source/C/Split/Split.c b/BaseTools/Source/C/Split/Split.c
deleted file mode 100644
index be0ee124bfe0..000000000000
--- a/BaseTools/Source/C/Split/Split.c
+++ /dev/null
@@ -1,466 +0,0 @@
-/** @file
-
-  Split a file into two pieces at the request offset.
-
-Copyright (c) 1999 - 2017, Intel Corporation. All rights reserved.<BR>
-SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-// GC_TODO: fix comment to start with /*++
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#ifdef __GNUC__
-#include <unistd.h>
-#else
-#include <direct.h>
-#endif
-#include <ctype.h>
-#include "ParseInf.h"
-#include "CommonLib.h"
-#include "EfiUtilityMsgs.h"
-//
-// Utility Name
-//
-#define UTILITY_NAME  "Split"
-
-//
-// Utility version information
-//
-#define UTILITY_MAJOR_VERSION 1
-#define UTILITY_MINOR_VERSION 0
-
-void
-Version (
-  void
-  )
-/*++
-
-Routine Description:
-
-  Displays the standard utility information to SDTOUT
-
-Arguments:
-
-  None
-
-Returns:
-
-  None
-
---*/
-{
-  printf ("%s Version %d.%d Build %s\n", UTILITY_NAME, UTILITY_MAJOR_VERSION, UTILITY_MINOR_VERSION, __BUILD_VERSION);
-}
-
-void
-Usage (
-  void
-  )
-/*++
-
-Routine Description:
-
-  GC_TODO: Add function description
-
-Arguments:
-
-
-Returns:
-
-  GC_TODO: add return values
-
---*/
-{
-  Version();
-  printf ("Copyright (c) 1999-2017 Intel Corporation. All rights reserved.\n");
-  printf ("\n  SplitFile creates two Binary files either in the same directory as the current working\n");
-  printf ("  directory or in the specified directory.\n");
-  printf ("\nUsage: \n\
-   Split\n\
-     -f, --filename inputFile to split\n\
-     -s, --split VALUE the number of bytes in the first file\n\
-     [-p, --prefix OutputDir]\n\
-     [-o, --firstfile Filename1]\n\
-     [-t, --secondfile Filename2]\n\
-     [-v, --verbose]\n\
-     [--version]\n\
-     [-q, --quiet disable all messages except fatal errors]\n\
-     [-d, --debug[#]\n\
-     [-h, --help]\n");
-}
-
-EFI_STATUS
-GetSplitValue (
-  IN CONST CHAR8* SplitValueString,
-  OUT UINT64 *ReturnValue
-)
-{
-  UINT64 len = 0;
-  UINT64 base = 1;
-  UINT64 index = 0;
-  UINT64 number = 0;
-  CHAR8 lastCHAR = 0;
-  EFI_STATUS Status = EFI_SUCCESS;
-
-  if (SplitValueString != NULL){
-    len = strlen(SplitValueString);
-  }
-
-  if (len == 0) {
-    return EFI_ABORTED;
-  }
-
-  Status = AsciiStringToUint64 (SplitValueString, FALSE, ReturnValue);
-  if (!EFI_ERROR (Status)) {
-    return Status;
-  }
-
-  if (SplitValueString[0] == '0' && (SplitValueString[1] == 'x' || SplitValueString[1] == 'X')) {
-    Status = AsciiStringToUint64 (SplitValueString, TRUE, ReturnValue);
-    if (!EFI_ERROR (Status)) {
-      return Status;
-    }
-  }
-
-  lastCHAR = (CHAR8)toupper((int)SplitValueString[len - 1]);
-
-  if (lastCHAR != 'K' && lastCHAR != 'M' && lastCHAR != 'G') {
-    return STATUS_ERROR;
-  }
-
-  for (;index < len - 1; ++index) {
-    if (!isdigit((int)SplitValueString[index])) {
-      return EFI_ABORTED;
-    }
-  }
-
-  number = atol (SplitValueString);
-  if (lastCHAR == 'K')
-    base = 1024;
-  else if (lastCHAR == 'M')
-    base = 1024*1024;
-  else
-    base = 1024*1024*1024;
-
-  *ReturnValue = number*base;
-
-  return EFI_SUCCESS;
-}
-
-EFI_STATUS
-CountVerboseLevel (
-  IN CONST CHAR8* VerboseLevelString,
-  IN CONST UINT64 Length,
-  OUT UINT64 *ReturnValue
-)
-{
-  UINT64 i = 0;
-  for (;i < Length; ++i) {
-    if (VerboseLevelString[i] != 'v' && VerboseLevelString[i] != 'V') {
-      return EFI_ABORTED;
-    }
-    ++(*ReturnValue);
-  }
-
-  return EFI_SUCCESS;
-}
-
-EFI_STATUS
-CreateDir (
-  IN OUT CHAR8** FullFileName
-)
-{
-  CHAR8* temp = *FullFileName;
-  CHAR8* start = temp;
-  CHAR8  tempchar;
-  UINT64 index = 0;
-
-  for (;index < strlen(temp); ++index) {
-    if (temp[index] == '\\' || temp[index] == '/') {
-      if (temp[index + 1] != '\0') {
-        tempchar = temp[index + 1];
-        temp[index + 1] = 0;
-        if (chdir(start)) {
-          if (mkdir(start, S_IRWXU | S_IRWXG | S_IRWXO) != 0) {
-            return EFI_ABORTED;
-          }
-          chdir(start);
-        }
-        start = temp + index + 1;
-        temp[index] = '/';
-        temp[index + 1] = tempchar;
-      }
-    }
-  }
-
-  return EFI_SUCCESS;
-}
-
-int
-main (
-  int argc,
-  char*argv[]
-  )
-/*++
-
-Routine Description:
-
-  GC_TODO: Add function description
-
-Arguments:
-
-  argc  - GC_TODO: add argument description
-  ]     - GC_TODO: add argument description
-
-Returns:
-
-  GC_TODO: add return values
-
---*/
-{
-  EFI_STATUS    Status = EFI_SUCCESS;
-  INTN          ReturnStatus = STATUS_SUCCESS;
-  FILE          *In;
-  CHAR8         *InputFileName = NULL;
-  CHAR8         *OutputDir = NULL;
-  CHAR8         *OutFileName1 = NULL;
-  CHAR8         *OutFileName2 = NULL;
-  UINT64        SplitValue = (UINT64) -1;
-  FILE          *Out1 = NULL;
-  FILE          *Out2 = NULL;
-  CHAR8         *OutName1 = NULL;
-  CHAR8         *OutName2 = NULL;
-  CHAR8         *CurrentDir = NULL;
-  UINT64        Index;
-  CHAR8         CharC;
-  UINT64        DebugLevel = 0;
-  UINT64        VerboseLevel = 0;
-
-  SetUtilityName(UTILITY_NAME);
-  if (argc == 1) {
-    Usage();
-    return STATUS_ERROR;
-  }
-
-  argc --;
-  argv ++;
-
-  if ((stricmp (argv[0], "-h") == 0) || (stricmp (argv[0], "--help") == 0)) {
-    Usage();
-    return STATUS_SUCCESS;
-  }
-
-  if (stricmp (argv[0], "--version") == 0) {
-    Version();
-    return STATUS_SUCCESS;
-  }
-
-  while (argc > 0) {
-    if ((stricmp (argv[0], "-p") == 0) || (stricmp (argv[0], "--prefix") == 0)) {
-      OutputDir = argv[1];
-      if (OutputDir == NULL) {
-        Warning (NULL, 0, 0, "NO output directory specified.", NULL);
-        return STATUS_ERROR;
-      }
-      argc -= 2;
-      argv += 2;
-      continue;
-    }
-
-    if ((stricmp (argv[0], "-f") == 0) || (stricmp (argv[0], "--filename") == 0)) {
-      InputFileName = argv[1];
-      if (InputFileName == NULL) {
-        Error (NULL, 0, 0x1001, "NO Input file specified.", NULL);
-        return STATUS_ERROR;
-      }
-      argc -= 2;
-      argv += 2;
-      continue;
-    }
-
-    if ((stricmp (argv[0], "-s") == 0) || (stricmp (argv[0], "--split") == 0)) {
-      Status = GetSplitValue(argv[1], &SplitValue);
-      if (EFI_ERROR (Status)) {
-        Error (NULL, 0, 0x1003, "Input split value is not one valid integer.", NULL);
-        return STATUS_ERROR;
-      }
-      argc -= 2;
-      argv += 2;
-      continue;
-    }
-
-    if ((stricmp (argv[0], "-o") == 0) || (stricmp (argv[0], "--firstfile") == 0)) {
-      OutFileName1 = argv[1];
-      if (OutFileName1 == NULL) {
-        Warning (NULL, 0, 0, NULL, "No output file1 specified.");
-      }
-      argc -= 2;
-      argv += 2;
-      continue;
-    }
-
-    if ((stricmp (argv[0], "-t") == 0) || (stricmp (argv[0], "--secondfile") == 0)) {
-      OutFileName2 = argv[1];
-      if (OutFileName2 == NULL) {
-        Warning (NULL, 0, 0, NULL, "No output file2 specified.");
-      }
-      argc -= 2;
-      argv += 2;
-      continue;
-    }
-
-    if ((stricmp (argv[0], "-q") == 0) || (stricmp (argv[0], "--quiet") == 0)) {
-      argc --;
-      argv ++;
-      continue;
-    }
-
-    if ((strlen(argv[0]) >= 2 && argv[0][0] == '-' && (argv[0][1] == 'v' || argv[0][1] == 'V')) || (stricmp (argv[0], "--verbose") == 0)) {
-      VerboseLevel = 1;
-      if (strlen(argv[0]) > 2) {
-        Status = CountVerboseLevel (&argv[0][2], strlen(argv[0]) - 2, &VerboseLevel);
-        if (EFI_ERROR (Status)) {
-          Error (NULL, 0, 0x1003, NULL, "%s is invalid parameter!", argv[0]);
-          return STATUS_ERROR;
-        }
-      }
-
-      argc --;
-      argv ++;
-      continue;
-    }
-
-    if ((stricmp (argv[0], "-d") == 0) || (stricmp (argv[0], "--debug") == 0)) {
-      Status = AsciiStringToUint64 (argv[1], FALSE, &DebugLevel);
-      if (EFI_ERROR (Status)) {
-        Error (NULL, 0, 0x1003, "Input debug level is not one valid integrator.", NULL);
-        return STATUS_ERROR;
-      }
-      argc -= 2;
-      argv += 2;
-      continue;
-    }
-    //
-    // Don't recognize the parameter.
-    //
-    Error (NULL, 0, 0x1003, NULL, "%s is invalid parameter!", argv[0]);
-    return STATUS_ERROR;
-  }
-
-  if (InputFileName == NULL) {
-    Error (NULL, 0, 0x1001, "NO Input file specified.", NULL);
-    return STATUS_ERROR;
-  }
-
-  In = fopen (LongFilePath (InputFileName), "rb");
-  if (In == NULL) {
-    // ("Unable to open file \"%s\"\n", InputFileName);
-    Error (InputFileName, 0, 1, "File open failure", NULL);
-    return STATUS_ERROR;
-  }
-
-  if (OutFileName1 == NULL) {
-    OutName1 = (CHAR8*)malloc(strlen(InputFileName) + 16);
-    if (OutName1 == NULL) {
-      Warning (NULL, 0, 0, NULL, "Memory Allocation Fail.");
-      ReturnStatus = STATUS_ERROR;
-      goto Finish;
-    }
-    strcpy (OutName1, InputFileName);
-    strcat (OutName1, "1");
-    OutFileName1 = OutName1;
-
-  }
-  if (OutFileName2 == NULL) {
-    OutName2 = (CHAR8*)malloc(strlen(InputFileName) + 16);
-    if (OutName2 == NULL) {
-      Warning (NULL, 0, 0, NULL, "Memory Allocation Fail.");
-      ReturnStatus = STATUS_ERROR;
-      goto Finish;
-    }
-    strcpy (OutName2, InputFileName);
-    strcat (OutName2, "2");
-    OutFileName2 = OutName2;
-
-  }
-
-  if (OutputDir != NULL) {
-    //OutputDirSpecified = TRUE;
-    if (chdir(OutputDir) != 0) {
-      Warning (NULL, 0, 0, NULL, "Change dir to OutputDir Fail.");
-      ReturnStatus = STATUS_ERROR;
-      goto Finish;
-    }
-  }
-
-  CurrentDir = (CHAR8*)getcwd((CHAR8*)0, 0);
-  if (EFI_ERROR(CreateDir(&OutFileName1))) {
-      Error (OutFileName1, 0, 5, "Create Dir for File1 Fail.", NULL);
-      ReturnStatus = STATUS_ERROR;
-      goto Finish;
-  }
-  chdir(CurrentDir);
-
-  if (EFI_ERROR(CreateDir(&OutFileName2))) {
-      Error (OutFileName2, 0, 5, "Create Dir for File2 Fail.", NULL);
-      ReturnStatus = STATUS_ERROR;
-      goto Finish;
-  }
-  chdir(CurrentDir);
-  free(CurrentDir);
-
-  Out1 = fopen (LongFilePath (OutFileName1), "wb");
-  if (Out1 == NULL) {
-    // ("Unable to open file \"%s\"\n", OutFileName1);
-    Error (OutFileName1, 0, 1, "File open failure", NULL);
-    ReturnStatus = STATUS_ERROR;
-    goto Finish;
-  }
-
-  Out2 = fopen (LongFilePath (OutFileName2), "wb");
-  if (Out2 == NULL) {
-    // ("Unable to open file \"%s\"\n", OutFileName2);
-    Error (OutFileName2, 0, 1, "File open failure", NULL);
-    ReturnStatus = STATUS_ERROR;
-    goto Finish;
-  }
-
-  for (Index = 0; Index < SplitValue; Index++) {
-    CharC = (CHAR8) fgetc (In);
-    if (feof (In)) {
-      break;
-    }
-
-    fputc (CharC, Out1);
-  }
-
-  for (;;) {
-    CharC = (CHAR8) fgetc (In);
-    if (feof (In)) {
-      break;
-    }
-
-    fputc (CharC, Out2);
-  }
-
-Finish:
-  if (OutName1 != NULL) {
-    free(OutName1);
-  }
-  if (OutName2 != NULL) {
-    free(OutName2);
-  }
-  if (In != NULL) {
-    fclose (In);
-  }
-  if (Out1 != NULL) {
-    fclose (Out1);
-  }
-  if (Out2 != NULL) {
-    fclose (Out2);
-  }
-
-  return ReturnStatus;
-}
diff --git a/BaseTools/BinWrappers/PosixLike/Split b/BaseTools/BinWrappers/PosixLike/Split
index 0945d86d9209..f3770eed42b4 100755
--- a/BaseTools/BinWrappers/PosixLike/Split
+++ b/BaseTools/BinWrappers/PosixLike/Split
@@ -1,29 +1,14 @@
 #!/usr/bin/env bash
+#python `dirname $0`/RunToolFromSource.py `basename $0` $*
+
+# If a ${PYTHON_COMMAND} command is available, use it in preference to python
+if command -v ${PYTHON_COMMAND} >/dev/null 2>&1; then
+    python_exe=${PYTHON_COMMAND}
+fi
 
 full_cmd=${BASH_SOURCE:-$0} # see http://mywiki.wooledge.org/BashFAQ/028 for a discussion of why $0 is not a good choice here
 dir=$(dirname "$full_cmd")
 cmd=${full_cmd##*/}
 
-if [ -n "$WORKSPACE" ] && [ -e "$WORKSPACE/Conf/BaseToolsCBinaries" ]
-then
-  exec "$WORKSPACE/Conf/BaseToolsCBinaries/$cmd"
-elif [ -n "$WORKSPACE" ] && [ -e "$EDK_TOOLS_PATH/Source/C" ]
-then
-  if [ ! -e "$EDK_TOOLS_PATH/Source/C/bin/$cmd" ]
-  then
-    echo "BaseTools C Tool binary was not found ($cmd)"
-    echo "You may need to run:"
-    echo "  make -C $EDK_TOOLS_PATH/Source/C"
-  else
-    exec "$EDK_TOOLS_PATH/Source/C/bin/$cmd" "$@"
-  fi
-elif [ -e "$dir/../../Source/C/bin/$cmd" ]
-then
-  exec "$dir/../../Source/C/bin/$cmd" "$@"
-else
-  echo "Unable to find the real '$cmd' to run"
-  echo "This message was printed by"
-  echo "  $0"
-  exit 127
-fi
-
+export PYTHONPATH="$dir/../../Source/Python${PYTHONPATH:+:"$PYTHONPATH"}"
+exec "${python_exe:-python}" "$dir/../../Source/Python/$cmd/$cmd.py" "$@"
diff --git a/BaseTools/BinWrappers/WindowsLike/Split.bat b/BaseTools/BinWrappers/WindowsLike/Split.bat
new file mode 100644
index 000000000000..9616cd893bec
--- /dev/null
+++ b/BaseTools/BinWrappers/WindowsLike/Split.bat
@@ -0,0 +1,3 @@
+@setlocal
+@set ToolName=%~n0%
+@%PYTHON_COMMAND% %BASE_TOOLS_PATH%\Source\Python\%ToolName%\%ToolName%.py %*
diff --git a/BaseTools/Source/C/GNUmakefile b/BaseTools/Source/C/GNUmakefile
index 464f43277455..8c191e0c3817 100644
--- a/BaseTools/Source/C/GNUmakefile
+++ b/BaseTools/Source/C/GNUmakefile
@@ -55,11 +55,10 @@ APPLICATIONS = \
   GenFv \
   GenFw \
   GenSec \
   GenCrc32 \
   LzmaCompress \
-  Split \
   TianoCompress \
   VolInfo \
   DevicePath
 
 SUBDIRS := $(LIBRARIES) $(APPLICATIONS)
diff --git a/BaseTools/Source/C/Makefile b/BaseTools/Source/C/Makefile
index e8f8abe59a79..a376d32e220e 100644
--- a/BaseTools/Source/C/Makefile
+++ b/BaseTools/Source/C/Makefile
@@ -17,11 +17,10 @@ APPLICATIONS = \
   GenFfs \
   GenFv \
   GenFw \
   GenSec \
   LzmaCompress \
-  Split \
   TianoCompress \
   VolInfo \
   DevicePath
 
 all: libs apps install
diff --git a/BaseTools/Source/C/Split/GNUmakefile b/BaseTools/Source/C/Split/GNUmakefile
deleted file mode 100644
index b3d4dff51ac1..000000000000
--- a/BaseTools/Source/C/Split/GNUmakefile
+++ /dev/null
@@ -1,17 +0,0 @@
-## @file
-# GNU/Linux makefile for 'Split' module build.
-#
-# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-MAKEROOT ?= ..
-
-APPNAME = Split
-
-OBJECTS = Split.o
-
-include $(MAKEROOT)/Makefiles/app.makefile
-
-LIBS = -lCommon
-
-
diff --git a/BaseTools/Source/C/Split/Makefile b/BaseTools/Source/C/Split/Makefile
deleted file mode 100644
index 19d3e31a7624..000000000000
--- a/BaseTools/Source/C/Split/Makefile
+++ /dev/null
@@ -1,16 +0,0 @@
-## @file
-# Windows makefile for 'Split' module build.
-#
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-!INCLUDE ..\Makefiles\ms.common
-
-APPNAME = Split
-
-LIBS = $(LIB_PATH)\Common.lib
-
-OBJECTS = Split.obj
-
-!INCLUDE ..\Makefiles\ms.app
-
diff --git a/BaseTools/Source/Python/Split/Split.py b/BaseTools/Source/Python/Split/Split.py
new file mode 100644
index 000000000000..39d4ee7689d6
--- /dev/null
+++ b/BaseTools/Source/Python/Split/Split.py
@@ -0,0 +1,203 @@
+
+# @file
+#  Split a file into two pieces at the request offset.
+#
+#  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+# Import Modules
+#
+import argparse
+import os
+import io
+import shutil
+import logging
+import sys
+import tempfile
+
+parser = argparse.ArgumentParser(description='''
+SplitFile creates two Binary files either in the same directory as the current working directory or in the specified directory.
+''')
+parser.add_argument("-f", "--filename", dest="inputfile",
+                    required=True, help="The input file to split tool.")
+parser.add_argument("-s", "--split", dest="position",
+                    required=True, help="The number of bytes in the first file. The valid format are HEX, Decimal and Decimal[KMG].")
+parser.add_argument("-p", "--prefix",  dest="output",
+                    help="The output folder.")
+parser.add_argument("-o", "--firstfile",  help="The first file name")
+parser.add_argument("-t", "--secondfile",  help="The second file name")
+parser.add_argument("--version", action="version", version='%(prog)s Version 1.0',
+                    help="Print debug information.")
+
+group = parser.add_mutually_exclusive_group()
+group.add_argument("-v", "--verbose", action="store_true",
+                   help="Print debug information.")
+group.add_argument("-q", "--quiet", action="store_true",
+                   help="Disable all messages except fatal errors")
+
+SizeDict = {
+    "K": 1024,
+    "M": 1024*1024,
+    "G": 1024*1024*1024
+}
+
+
+def GetPositionValue(position):
+    '''
+    Parse the string of the argument position and return a decimal number.
+    The valid position formats are
+    1. HEX
+    e.g. 0x1000 or 0X1000
+    2. Decimal
+    e.g. 100
+    3. Decimal[KMG]
+    e.g. 100K or 100M or 100G or 100k or 100m or 100g
+    '''
+    logger = logging.getLogger('Split')
+    PosVal = 0
+    header = position[:2].upper()
+    tailer = position[-1].upper()
+
+    try:
+        if tailer in SizeDict:
+            PosVal = int(position[:-1]) * SizeDict[tailer]
+        else:
+            if header == "0X":
+                PosVal = int(position, 16)
+            else:
+                PosVal = int(position)
+    except Exception as e:
+        logger.error(
+            "The parameter %s format is incorrect. The valid format is HEX, Decimal and Decimal[KMG]." % position)
+        raise(e)
+
+    return PosVal
+
+
+def getFileSize(filename):
+    '''
+    Read the input file and return the file size.
+    '''
+    logger = logging.getLogger('Split')
+    length = 0
+    try:
+        with open(filename, "rb") as fin:
+            fin.seek(0, io.SEEK_END)
+            length = fin.tell()
+    except Exception as e:
+        logger.error("Access file failed: %s", filename)
+        raise(e)
+
+    return length
+
+
+def splitFile(inputfile, position, outputdir=None, outputfile1=None, outputfile2=None):
+    '''
+    Split the inputfile into outputfile1 and outputfile2 from the position.
+    '''
+    logger = logging.getLogger('Split')
+
+    inputfile = os.path.abspath(inputfile)
+    workspace = os.path.dirname(inputfile)
+    if not os.path.exists(inputfile):
+        logger.error("File Not Found: %s" % inputfile)
+        raise(Exception)
+
+    if outputfile1 and outputfile2 and outputfile1 == outputfile2:
+        logger.error(
+            "The firstfile and the secondfile can't be the same: %s" % outputfile1)
+        raise(Exception)
+
+    if not outputdir:
+        outputdir = workspace
+    elif not os.path.isabs(outputdir):
+        outputdir = os.path.join(workspace, outputdir)
+
+    # Create dir for the output files
+    try:
+        if not outputfile1:
+            outputfile1 = os.path.abspath(os.path.join(
+                outputdir, "{}1".format(os.path.basename(inputfile))))
+        else:
+            outputfile1 = os.path.abspath(os.path.join(outputdir, outputfile1))
+        outputdir = os.path.dirname(outputfile1)
+        if not os.path.exists(outputdir):
+            os.makedirs(outputdir)
+
+        if not outputfile2:
+            outputfile2 = os.path.abspath(os.path.join(
+                outputdir, "{}2".format(os.path.basename(inputfile))))
+        else:
+            outputfile2 = os.path.abspath(os.path.join(outputdir, outputfile2))
+        outputdir = os.path.dirname(outputfile2)
+        if not os.path.exists(outputdir):
+            os.makedirs(outputdir)
+    except Exception as e:
+        logger.error("Can't make dir: %s" % outputdir)
+        raise(e)
+
+    if position <= 0:
+        if outputfile2 != inputfile:
+            shutil.copy2(inputfile, outputfile2)
+        with open(outputfile1, "wb") as fout:
+            fout.write(b'')
+    else:
+        inputfilesize = getFileSize(inputfile)
+        if position >= inputfilesize:
+            if outputfile1 != inputfile:
+                shutil.copy2(inputfile, outputfile1)
+            with open(outputfile2, "wb") as fout:
+                fout.write(b'')
+        else:
+            try:
+                tempdir = tempfile.mkdtemp()
+                tempfile1 = os.path.join(tempdir, "file1.bin")
+                tempfile2 = os.path.join(tempdir, "file2.bin")
+                with open(inputfile, "rb") as fin:
+                    content1 = fin.read(position)
+                    with open(tempfile1, "wb") as fout1:
+                        fout1.write(content1)
+
+                    content2 = fin.read(inputfilesize - position)
+                    with open(tempfile2, "wb") as fout2:
+                        fout2.write(content2)
+                shutil.copy2(tempfile1, outputfile1)
+                shutil.copy2(tempfile2, outputfile2)
+            except Exception as e:
+                logger.error("Split file failed")
+                raise(e)
+            finally:
+                if os.path.exists(tempdir):
+                    shutil.rmtree(tempdir)
+
+
+def main():
+    args = parser.parse_args()
+    status = 0
+
+    logger = logging.getLogger('Split')
+    if args.quiet:
+        logger.setLevel(logging.CRITICAL)
+    if args.verbose:
+        logger.setLevel(logging.DEBUG)
+
+    lh = logging.StreamHandler(sys.stdout)
+    lf = logging.Formatter("%(levelname)-8s: %(message)s")
+    lh.setFormatter(lf)
+    logger.addHandler(lh)
+
+    try:
+        position = GetPositionValue(args.position)
+        splitFile(args.inputfile, position, args.output,
+                  args.firstfile, args.secondfile)
+    except Exception as e:
+        status = 1
+
+    return status
+
+
+if __name__ == "__main__":
+    exit(main())
diff --git a/BaseTools/Source/Python/Split/__init__.py b/BaseTools/Source/Python/Split/__init__.py
new file mode 100644
index 000000000000..8f4daf86e84a
--- /dev/null
+++ b/BaseTools/Source/Python/Split/__init__.py
@@ -0,0 +1,10 @@
+# @file
+#  Split a file into two pieces at the request offset.
+#
+#  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+# Import Modules
-- 
2.29.1.windows.1