On 27/02/17 15:15, jan.som...@dlr.de wrote:
-----Ursprüngliche Nachricht-----
>Von: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de]
>Gesendet: Montag, 27. Februar 2017 15:11
>An: Sommer, Jan;devel@rtems.org
>Betreff: Re: AW: AW: Undefined reference to
>`__sync_bool_compare_and_swap_4' for some Leon configurations with
>gfortran
>
>On 27/02/17 15:08,jan.som...@dlr.de wrote:
> >Ok, thanks for the clarification.
> >I will try to create a patch for gcc and put rtems CC for the discussion.
>
>Another option would be to provide the __sync_() stuff also via libatomic.
>
True. I will ask on the gcc mailinglist what they would prefer.
This __sync_() stuff seems to be used in several places in GCC. So,
changing libbacktrace is probably not enough. We need a general solution
for the __sync_() builtins on RTEMS. I don't think GCC can be changed to
emit __atomic_() calls for the __sync_() builtins (I would still try to
ask). The libgcc or libatomic is probably a good place to add them for
RTEMS as functions implemented via __atomic_() builtins.
--
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
