Am 12.02.2010 17:22, schrieb Jan Kiszka:
> Gilles Chanteperdrix wrote:
>> Jan Kiszka wrote:
>>> Gilles Chanteperdrix wrote:
>>>> Jan Kiszka wrote:
>>>>> Hi Gilles,
>>>>> this one requires some fixing too:
>>>>> xeno_sem_heap is marked weak. xeno_init_sem_heaps is called once per
>>>>> initialized skin. It unmaps any existing heap and creates a new one.
>>>>> That's already fragile during constructor run, but it's lethal during
>>>>> process runtime, ie. when using dlopen.
>>>>> I think the solution is to handle forks separately and only remap in
>>>>> that case. Digging in this direction now.
>>>>> BTW, what triggers the re-run of xeno_init_sem_heaps after a fork so far?
>>>> It must be done for the child process to get a private heap different
>>>> from the parent process. I would guess it is handled by pthread_atfork.
>>> Ah, only the POSIX skin does that. However, sem-heaps must not be
>>> POSIX-only. OK, patch in the make.
>> Ok. I am thinking more and more that you are right about making
>> libxeno_common a standalone library. Only the name stinks, we should
>> find a better one.
> libxnskin or so?
> Jan

libxenomai ?


Attachment: signature.asc
Description: OpenPGP digital signature

Xenomai-core mailing list

Reply via email to