On 30/10/15 19:02, Joel Sherrill wrote:
On October 30, 2015 1:58:33 PM EDT, Jan Sommer<soja-li...@aries.uberspace.de>
wrote:
>Am Friday 30 October 2015, 10:07:45 schrieb Sebastian Huber:
>>On 30/10/15 09:53, Jan Sommer wrote:
>> >Am Friday 30 October 2015, 07:50:16 schrieb Sebastian Huber:
>> >> >How is this tackled in the glibc/Linux support? Is the exact
>layout of
>> >> >the structures really interesting for Ada? I guess its sufficient
>to
>> >> >tell Ada the size and alignment of pthread_attr_t for example.
>> >> >
>> >In Linux they do it like this:
>> > type pthread_attr_t is record
>> > Data : char_array (1 .. OS_Constants.PTHREAD_ATTR_SIZE);
>> > end record;
>> > pragma Convention (C, pthread_attr_t);
>> > for pthread_attr_t'Alignment use
>Interfaces.C.unsigned_long'Alignment;
>> >
>> >That's probably the best solution. The gnat-rts changes values of
>the fields only using the corresponding pthread_set functions.
>> >If no one objects I would try to change the osinte-rtems.ads in the
>same manner.
>>
>>This would be my preferred solution.
>>
>>
>
>Ok, I have made the changes locally now, but how do I submit them to
>gcc?
>Do I create patches only for gcc 4.9.x or do I need to get it into
>trunk and it gets backported?
>Their contribute page does not read as clear to me as the rtems one.
I'm glad we have good instructions.:)
Given we want this on 4.9 and forward, it needs a gcc PR. Then reference that
in the ChangLog entry. There is a gcc list for patches. Send it there.
Since this is RTEMS specific, Sebastian or I can commit it quickly.
Depending on the size of the patch and possible future patches we may
need a copyright assignment with the FSF.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
_______________________________________________
devel mailing list
devel@rtems.org
http://lists.rtems.org/mailman/listinfo/devel
