Article: Q122302
Product(s): Microsoft C Compiler
Version(s): 2.0
Operating System(s):
Keyword(s):
Last Modified: 29-JUL-2001
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The information in this article applies to:
- Microsoft C/C++ Compiler (CL.EXE), included with:
- *EDITOR Please do not choose this product*Microsoft Visual C++ 32-bit Edition* use 241, 265, 225, version 2.0, on platform(s):
- the hardware: Intel x86
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SYMPTOMS
========
Compiling a function with the __declspec(naked) modifier, but without an __asm
block for the epilog code, and using the /Og and /G5 switches, results in the
following error:
fatal error C1001: INTERNAL COMPILER ERROR
(compiler file 'l:\b_bld\c2\P2\main.c', line 374)
Please choose the Technical Support command on the Visual C++ Help menu, or
open the Technical Support help file for more information
RESOLUTION
==========
Implement a epilog code block in your function.
STATUS
======
Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This problem was fixed in Microsoft Visual C++,
32-bit Edition, version 4.0.
MORE INFORMATION
================
If a function is declared with the __declspec(naked) modifier, the compiler will
not generate any prolog or epilog code. Users should implement their own prolog
and epilog code, using blocks of inline assembler code.
NOTE: without proper prolog and epilog code, the code will not execute
correctly.
Sample Code
-----------
/* Compile options needed: /Og /G5
Note that /O1, /O2, and /Ox all imply /Og
*/
void __declspec(naked) NakedFunction()
{
__asm
{
// prolog code
}
printf( "Inside naked function\n" );
// note: epilog __asm block missing
}
Additional query words: 2.00 9.00 buglist2.00
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Keywords :
Technology : kbVCsearch kbAudDeveloper kbCVCComp
Version : :2.0
Issue type : kbbug
Solution Type : kbfix
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