[Click] C++ Exceptions in Linux kernel

[Eddie Kohler]

I'm afraid I have nothing useful to say.  Stack unwinding IS hard, and I think 
particularly so in kernel space.  I would advise against using exceptions.

Eddie


Nikolay Mitev wrote:
> Eddie Kohler wrote:
>> Click specifically does not support exceptions.
> Yes, I know. I'm actually basing my project on a modified click build 
> system (great work BTW). But my question is _why_ does no support? Too 
> difficult? Impossible? You don't need no stinkin' exceptions :) ?
>>
>> A team at Reykjavik University did get C++ exceptions working in the 
>> Linux kernel, but their website, netlab.ru.is, appears to be down; 
>> maybe the Internet Archive would have a version.
> Yes, I found that one too. Although their web site is down, I found 
> MOOL, whith is based on that codebase. Unfortunately, it is based on a 
> very old gcc and very old kernel. What I'm shooting for is 2.6.28+ and 
> gcc 4.3+ with dwarf2 EH. I've made some progress, but now I'm stuck on 
> stack unwinding, so I really need to know if this is possible at all 
> without major modifications to the kernel itself. I'de really appreciate 
> any kind of info on the matter. Thanks.
> 
> cheers,
> face