How to print out debug message in release version driver ???

[Xu Wen Bin]

Hi Everybody:
Recently I met a strange problem, which only occurs in release
version driver. I want to print out simple debug message in release
version driver. But I don't know how to do. I ever tried to #define
DEBUG just before _DbgPrint(...) funtion. It doesn't work at all. Any
idea ? Thank you in advance.

Skeeter
02/09/2002

[Spiro Trikaliotis]

Hello,

just use DbgPrint(), it is "active" with the release version of a
driver. I assume you're using KdPrint() normally? This is not
effective in a release driver, but DbgPrint() really is.

HTH,
Spiro.

[Salim Virani]

I hope you are using DbgPrint(...) to print and not KdPrint( ... ).

Do not know what is _DbgPrint( .. ). I guess _DbgPrint( ..) has been defined
in your environement to do nothing in free build and to DbgPrint() in
checked build.

--Salim

"Xu Wen Bin" <wb...@yahoo.com> wrote in message
news:2a7b8e44.02020...@posting.google.com...

[Page Fault]

DbgPrint works on the retail build of drivers and Windows NT/2K/XP.
Look at ntddk.h ...

#ifndef _DBGNT_

ULONG
_cdecl
DbgPrint(
PCH Format,
...
);

// end_wdm

ULONG
_cdecl
DbgPrintReturnControlC(
PCH Format,
...
);

// begin_wdm
#endif // _DBGNT_

wb...@yahoo.com (Xu Wen Bin) wrote in message news:<2a7b8e44.02020...@posting.google.com>...

[Gary Li]

If you don't see print traces at free build, you must be using KdPrint()
like functions in your driver.
You may either #define DBG to make them work in the free build, or redefine
KdPrint() as DbgPrint().

-Gary

"Xu Wen Bin" <wb...@yahoo.com> wrote in message
news:2a7b8e44.02020...@posting.google.com...

[Xu Wen Bin]

Thank all of you very very much. I will try it right now.

Skeeter