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      1 /*++
      2 
      3 Copyright (c) 2004, Intel Corporation. All rights reserved.<BR>
      4 This program and the accompanying materials
      5 are licensed and made available under the terms and conditions of the BSD License
      6 which accompanies this distribution.  The full text of the license may be found at
      7 http://opensource.org/licenses/bsd-license.php
      8 
      9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 
     12 Module Name:
     13 
     14   VcCheck.c
     15 
     16 Abstract:
     17 
     18   We have found problems with the Visual C++ SP4 and the /O1 flag.
     19   If this tests ask a question you have the wrong version of Visual C++
     20   on your system
     21 
     22   This test assumes the tools are being compiled with the same complier
     23   as the Tiano code.
     24 
     25   Please see $(EFI_SOURCE)\EFI2.0 Developer's Manual.doc to get the
     26   correct version of Visual C++
     27 
     28 --*/
     29 
     30 #include <stdio.h>
     31 
     32 _int16  gGloba16;
     33 
     34 int
     35 CheckLostCode (
     36   int Value
     37   )
     38 /*++
     39 
     40 Routine Description:
     41   This routine is used to test for compiler isseus with /O1.
     42   If the /O1 compiler option, and C2.dll is got from Visual C++ SP5
     43   (version: 6.00.8168.0), the assember codes after default branch will be
     44   losted. (Execute "cl Visual Ccheck.c /O1 /FAsc" to get detail information)
     45 
     46 Arguments:
     47   Value - Test case
     48 
     49 Returns:
     50   Test to see if comiler error is present.
     51 
     52 --*/
     53 {
     54   switch (Value) {
     55   case 0:
     56     break;
     57 
     58   default:
     59     _asm
     60     {
     61       mov bx, 1
     62       mov gGloba16, bx
     63     }
     64 
     65     return 1;
     66   }
     67 
     68   _asm
     69   {
     70     mov bx, 0
     71     mov gGloba16, bx
     72   }
     73 
     74   return 0;
     75 }
     76 
     77 int
     78 main (
     79   void
     80   )
     81 /*++
     82 
     83 Routine Description:
     84   This utility is checking for a known Visual C++ compiler issues. To remove this
     85   question from the build follow the steps in the developers manual.
     86 
     87 Arguments:
     88   NONE
     89 
     90 Returns:
     91   0 - Compiler version is O.K.
     92   1 - Compiler version is Bad
     93 
     94 --*/
     95 {
     96   int   result;
     97   char  select;
     98 
     99   gGloba16  = 0xFF;
    100   result    = 0;
    101 
    102   CheckLostCode (0);
    103   result += (gGloba16 == 0) ? 0 : 1;
    104 
    105   CheckLostCode (1);
    106   result += (gGloba16 == 1) ? 0 : 1;
    107 
    108   if (result != 0) {
    109     printf ("Warning: C2.dll is incorrect.\n Please see $(EFI_SOURCE)\\EFI2.0 Developer's Manual.doc for corrective action.\n");
    110     printf ("Would you want to continue?(Y/N)");
    111 
    112     scanf ("%c", &select);
    113     if ((select == 'Y') || (select == 'y')) {
    114       return 0;
    115     } else {
    116       return 1;
    117     }
    118   }
    119 
    120   return 0;
    121 }
    122