On May 15, 2007, at 2:20 AM, Patrick Olinet wrote:
> Finally, I've tried it the dirty way, ie by commenting out all the
> "stfd" instructions at the beginning of the ppc_closure.S file and
> things seem to work !!!
Wonderful. If you could, would you submit the patch to gcc-
patches... I suspect it is better than nothing, and it might be
trivial enough to go in without paperwork. Additionally, it might
provide a basis for another contributor to build upon, as they then
only have to do half the work.
Thanks.
> What worries me a bit is that "stfd" instructions are used to save
> fpu registers states before the call (it's my guess) and I would
> expect them to be restored afterwards, probably with "lfd" assembly
> instructions (that I would need to comment out as well). But I
> can't see such instructions...
> Any thoughts about that ?
Sure, don't worry about it, there is no matching instruction. You
just can't do functions that return float/double/long double from my
quick reading.
> And should I report a new bug for this libffi/powerpc problem ?
We prefer to have a bug report for each bug... :-)