Re: [Xenomai-help] trap exceptions in user

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Jan Kiszka wrote:
> Gabriele Moabiti wrote:
>>>>> You should trace the exception path in the I-pipe patch to find the
>>>>>  point where your exception handling callback is not called.
>>>> will it be a large print work or there are another ways to do that?
>>>> :)
>>> Yes, a small printk works. There is not that much code involved.
>> I have found the problem.
>> I used a printf some instructions before the call to the asm blob.
>> Once removed seems to work as expected.
>> I've seen also that writing
>>       printf(expr); \
>>       rt_task_set_mode(0, T_PRIMARY, 0);
>> it works (I think printf does a switch to secondary domain).
>> Now I should use a user-space-no-problem print like rtdm_printk in kernel space.
>> The docs says rtdm_in_rt_context and rtdm_printk are avalaible but in the rtdm.h
>> there is no trace of them and I can't use rtdm_driver.h 'cause it's kernel only...
> 
> rtdm_printk (read 'k' as 'kernel') is for driver development in kernel
> space only.
> 
> What you are looking for is rt_printf from the rtdk lib. See related
> example (examples/native/rtprint.c).

I think it would be nice if we had some doxygen documentation for the
rtdk lib. This way, we could point users to this documentation.

-- 
                                                 Gilles.