This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] PR libgcc/83112, Fix warnings on libgcc float128-ifunc.c
On Tue, Dec 12, 2017 at 04:56:36PM -0500, Michael Meissner wrote:
> On Tue, Dec 12, 2017 at 11:04:55AM -0600, Segher Boessenkool wrote:
> > On Mon, Dec 11, 2017 at 03:57:51PM -0500, Michael Meissner wrote:
> > > > > +extern KCtype __divkc3 (KFtype, KFtype, KFtype, KFtype);
> > > > > +
> > > > > KCtype
> > > > > __divkc3 (KFtype a, KFtype b, KFtype c, KFtype d)
> > > > > {
> > > >
> > > > How does this warn? -Wmissing-declarations? Should this declaration be
> > > > in a header then?
> As Andreas points out, the option -Wmissing-prototypes complains if a global
> function is compliled without prototypes for C/Objective C.
>
> Before the patch, the internal definition within the compiler meant that that
> __mulkc3 would not get the warning. Now with separate ifunc handlers, both
> __mulkc3_sw and __mulkc3_hw got warnings.
Gotcha. There isn't a nice header file for it, so sure that is fine
the way you have it. Thanks for the explanation!
Segher