On Tue, Apr 22, 2014 at 04:26:23PM -0400, Michael Meissner wrote:
> On Tue, Apr 22, 2014 at 10:06:19PM +0200, Marc Glisse wrote:
> > Hello,
> >
> > as written in the PR, my patch seems wrong for platforms like
> > powerpc that already had the __float128 typeinfo for long double
> > with a different version. The following patch regtested fine on
> > x86_64, and a hackish cross-build shows that float128.ver is ignored
> > on powerpc (good).
> >
> > 2014-04-23 Marc Glisse <[email protected]>
> >
> > PR libstdc++/43622
> > * config/abi/pre/float128.ver: New file.
> > * config/abi/pre/gnu.ver (CXXABI_1.3.9): Move __float128 typeinfo to
> > the new file.
> > * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
> > * configure.ac: Use float128.ver when relevant.
> > * configure: Regenerate.
>
> Note, I hope to restart work to add __float128 as IEEE 128-bit floating point
> in the PowerPC shortly. I had done about 1/2 of the work in a sandbox, and I
> needed to put it aside to look at other issues, and it has bubbled up to be
> high on my list of priorities.
But then the question is what letter to use for the mangling of it, when
g is already used for the IBM "double double" long double on PowerPC.
Jakub
