If the function is listed in the documentation as
having an RT-Linux version then you are not
calling the real user-space routine but an
RT-Linux one that has (approximately) the same
description and calling sequence.
You should never call user-space functions (unless
you really know what you are doing) from any
kernel task or module and you should never call
any normal linux kernel function from within a
real-time function, module, device driver, or
interrupt handler.
Norm
----- Original Message -----
From: A V <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, September 13, 2001 11:36 AM
Subject: [rtl] doubt regd library calls
> hi everybody,
>
> I have some doubt about library calls. I read in
OS
> concepts that kernel space program should not
make
> references to user space processes. Am i right ?
> In RTLniux, every realtime module runs in Kernel
> space. And we are making library calls to create
> threads which runs in User space. but according
to OS
> concepts process running in Kernel space should
not
> refer User space..
> Please clarify my doubt..
>
> Regards
> Venkat
>
>
>
>
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