[PUSHED][3-5] gcc 4.7 UNO bridges fixes

[Petr Mladek]

Stephan Bergmann píše v Pá 18. 05. 2012 v 17:37 +0200:
> On 05/18/2012 05:13 PM, Michael Stahl wrote:
> > so it seems that the C++ UNO bridges, when built with gcc 4.7, crash and
> > burn in the bridges test in testtools.
> >
> > fortunately Stephan has fixed this problem on master, at least as far as
> > i can see, applying the attached patches in a x86_64 --enable-dbgutil
> > build gives me a nicely working office that passes all subsequent tests.
> >
> > so, i guess it would make sense to put these into libreoffice-3-5.
> 
> One subsequent fix that should then probably also be backported is 
> <http://cgit.freedesktop.org/libreoffice/core/commit/?id=e2b7e28c12bb836fd7ab1dcbfc2460f807dd27f6> 
> "adjust gcc3_linux_intel bridge to work with clang."  From my notes from 
> early April:  "Ported the cpp_uno bridge changes needed for GCC 4.7 to 
> the Linux x86 bridge as well, only for Lubos to report that his Clang 
> tinderbox now fails with that.  Turns out Clang still requires a call to 
> dummy_can_throw_anything in callVirtualMethod so that exceptions thrown 
> from within the asm block's call properly unwind through the function, 
> while GCC 4.7 -O0 breaks if the call to dummy_can_throw_anything is 
> there.  Sigh.  Back to the drawing board (and my feeling that my 
> understanding hadn't reached the bottom of the problem yet seems 
> right)."  As I said on IRC, those fixes are still 
> work-in-(somewhat-stalled-at-the-moment-)progress.

I am sure that more people will need it soon. Michael approved Stefan's
patches. Stefan approved Michael's selection of the patches. So, I took
it as approved and pushed all 8 commits into 3-5 branch :-)


Best Regards,
Petr