Re: x86 Darwin an libgcc-math

[Richard Guenther <richard dot guenther at gmail dot com>]

On 2/1/06, Richard Guenther <richard.guenther@gmail.com> wrote:
> On 2/1/06, Paolo Bonzini <paolo.bonzini@lu.unisi.ch> wrote:
> >
> > > Is it intentional that these functions have global visibility and
> > > interfere with functions declared and implemented by the system
> > > libraries? If not, can they be compilied with hidden visibility?
> >
> > Yes (I originally tried to "see what happens if we use the glibc
> > routines", then I shared the code with Richard who did the configury and
> > the back-end patches.  glibc people do not try to make life easy for
> > people that use their code outside glibc, but I forgot to tell him about
> > this...).
>
> Ok, so Darwin does not support symbol versioning?  As then all these
> conflicting symbols should be local.  Originally Paolo added #pragma
> visibility stuff which I removed during getting rid of all the C wrapper files.
> I wonder if we can do some clever stuff with just using default hidden for
> all files and appending an visibility attribute to the name defines.  I can
> work on this, but I didn't see any difference in exported symbols if using
> it or not (probably due to the used linker script).

Can you try the attached patch (it's not perfect as it misses to export some
of the symbols due to the simple #define hack not working for them) and
see if in principle it would solve the issue on Darwin?

Thanks,
Richard.

Attachment: p8-6
Description: Binary data