why fiasco use -fno-rtti compile option?

Adam Lackorzynski adam at os.inf.tu-dresden.de
Thu Jun 25 22:17:17 CEST 2015


On Fri Jun 19, 2015 at 22:35:18 +0800, Yuxin Ren wrote:
> Do you want to use rtti in kernel or user level?

Kernel.

> It seems to be pretty difficult to support rtti and exception handler in
> run-time, especially in kernel.
> I also want to know if Fiasco support exception handler in kernel or user
> space.
> If it supports, I want to learn to how to achieve such support.

In userland exceptions and rtti work just fine. I think the core
here is to have libstdc++ (or a similar implementation) available.
Except that it can only be subtle details which I can't repeat from the
top of my head...



Adam
-- 
Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/



More information about the l4-hackers mailing list