Add Mde String and PrintLibs. Port StrGather to the Mde Unicode implementation. Compile with 2 byte wchars. Now StrGather works with gcc.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@358 6f19259b-4bc3-4df7-8a09-765794883524

Tools/Source/TianoTools/String/PrintLibInternal.c

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+/** @file
+  Print Library worker functions.
+
+  Copyright (c) 2006, Intel Corporation<BR>
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+  Module Name:  PrintLibInternal.c
+
+**/
+
+#include <Base.h>
+#include <UefiBaseTypes.h>
+#include <PrintLib.h>
+#include <BaseLib.h>
+#include <CommonLib.h>
+#include "PrintLibInternal.h"
+
+static CONST CHAR8 mHexStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
+
+CHAR8 *
+BasePrintLibFillBuffer (
+  CHAR8   *Buffer,
+  INTN    Length,
+  UINTN   Character,
+  INTN    Increment
+  )
+{
+  INTN  Index;
+
+  for (Index = 0; Index < Length; Index++) {
+    *Buffer       =  (CHAR8) Character;
+    *(Buffer + 1) =  (CHAR8) (Character >> 8);
+    Buffer        += Increment;
+  }
+  return Buffer;
+}
+
+/**
+  Print worker function that prints a Value as a decimal number in Buffer.
+
+  @param  Buffer Location to place the Unicode or ASCII string of Value.
+  
+  @param  Value Value to convert to a Decimal or Hexidecimal string in Buffer.
+  
+  @param  Flags Flags to use in printing string, see file header for details.
+  
+  @param  Precision Minimum number of digits to return in the ASCII string
+
+  @return Number of characters printed.
+
+**/
+UINTN
+EFIAPI
+BasePrintLibValueToString (
+  IN OUT CHAR8  *Buffer,
+  IN INT64      Value,
+  IN UINTN      Radix
+  )
+{
+  UINTN   Digits;
+  UINT32  Remainder;
+
+  //
+  // Loop to convert one digit at a time in reverse order
+  //
+  *(Buffer++) = 0;
+  Digits = 0;
+  do {
+    // Value = (INT64)DivU64x32Remainder ((UINT64)Value, (UINT32)Radix, &Remainder);
+    Remainder = (UINT64)Value % (UINT32)Radix;
+    Value = (UINT64)Value / (UINT32)Radix;
+    *(Buffer++) = mHexStr[Remainder];
+    Digits++;
+  } while (Value != 0);
+  return Digits;
+}
+
+UINTN
+BasePrintLibConvertValueToString (
+  IN OUT CHAR8   *Buffer,
+  IN UINTN       Flags,
+  IN INT64       Value,
+  IN UINTN       Width,
+  IN UINTN       Increment
+  )
+{
+  CHAR8  *OriginalBuffer;
+  CHAR8  ValueBuffer[MAXIMUM_VALUE_CHARACTERS];
+  UINTN  Count;
+  UINTN  Digits;
+  UINTN  Index;
+
+  OriginalBuffer = Buffer;
+
+  if (Width == 0 || (Flags & COMMA_TYPE) != 0) {
+    Flags &= (~PREFIX_ZERO);
+  }
+
+  if (Width == 0 || Width > (MAXIMUM_VALUE_CHARACTERS - 1)) {
+    Width = MAXIMUM_VALUE_CHARACTERS - 1;
+  }
+
+  if (Value < 0) {
+    Value = -Value;
+    Buffer = BasePrintLibFillBuffer (Buffer, 1, '-', Increment);
+  }
+
+  Count = BasePrintLibValueToString (ValueBuffer, Value, 10);
+
+  if ((Flags & PREFIX_ZERO) != 0) {
+    Buffer = BasePrintLibFillBuffer (Buffer, Width - Count, '0', Increment);
+  }
+
+  Digits = 3 - (Count % 3);
+  for (Index = 0; Index < Count; Index++) {
+    Buffer = BasePrintLibFillBuffer (Buffer, 1, ValueBuffer[Count - Index], Increment);
+    if ((Flags & COMMA_TYPE) != 0) {
+      Digits++;
+      if (Digits == 3) {
+        Digits = 0;
+        if ((Index + 1) < Count) {
+          Buffer = BasePrintLibFillBuffer (Buffer, 1, ',', Increment);
+        }
+      }
+    }
+  }
+
+  Buffer = BasePrintLibFillBuffer (Buffer, 1, 0, Increment);
+
+  return ((Buffer - OriginalBuffer) / Increment);
+}