Use C++ in kernel module?

Use C++ in kernel module?

[Conke Hu]

Is it possible to use C++ in linux kernel module? how?
I've tested but failed, there is an unknown symbol in the .o file from
c++ source code.

Conke

Re: Use C++ in kernel module?

[Jan Engelhardt]

On Mar 30 2007 11:37, Conke Hu wrote:
>
> Is it possible to use C++ in linux kernel module? how?
> I've tested but failed, there is an unknown symbol in the .o file from
> c++ source code.

You answered it yourself. Linux does not have a C++ runtime.
It is possible to use a very limited set of C++ features, usually not 
worth the fight.


Jan
-- 

Re: Use C++ in kernel module?

[Bongani Hlope]

On Friday 30 March 2007 05:49:14 Jan Engelhardt wrote:
> On Mar 30 2007 11:37, Conke Hu wrote:
> > Is it possible to use C++ in linux kernel module? how?
> > I've tested but failed, there is an unknown symbol in the .o file from
> > c++ source code.
>
> You answered it yourself. Linux does not have a C++ runtime.
> It is possible to use a very limited set of C++ features, usually not
> worth the fight.
>
>
> Jan

Do the "C++ kernel modules" crowd actually know C++? If they knew how C++ was 
designed, they would know that it requires some runtime support, which will 
stop them from asking this question over and over again. I'm begining to 
think that most of these questions are asked by people who think OO 
programing should used in the kernel (which is already done anyway)

--

A log may float in a river, but that does not make it a crocodile.

Re: Use C++ in kernel module?

[Alistair John Strachan]

On Friday 30 March 2007 07:59, Bongani Hlope wrote:
> On Friday 30 March 2007 05:49:14 Jan Engelhardt wrote:
> > On Mar 30 2007 11:37, Conke Hu wrote:
> > > Is it possible to use C++ in linux kernel module? how?
> > > I've tested but failed, there is an unknown symbol in the .o file from
> > > c++ source code.
> >
> > You answered it yourself. Linux does not have a C++ runtime.
> > It is possible to use a very limited set of C++ features, usually not
> > worth the fight.
> >
> >
> > Jan
>
> Do the "C++ kernel modules" crowd actually know C++? If they knew how C++
> was designed, they would know that it requires some runtime support, which
> will stop them from asking this question over and over again. I'm begining
> to think that most of these questions are asked by people who think OO
> programing should used in the kernel (which is already done anyway)

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http://www.tux.org/lkml/#s15-3

"Why don't we rewrite the Linux kernel in C++?"

"Why not add a C++ interface layer to the kernel to support C++ drivers?"

"Can we make the kernel headers C++-friendly?"

-- 
Cheers,
Alistair.

Final year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.