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Re: [PATCH v3 7/7] powerpc64le: Enable float128
On 06/27/2017 01:02 AM, Joseph Myers wrote:
> I'm seeing a testsuite regression for powerpc64le with
> build-many-glibcs.py with this patch (elf/check-localplt fails), did you
> not see that in your testing?
>
> https://sourceware.org/ml/libc-testresults/2017-q2/msg00427.html
>
> The failure is: "Extra PLT reference: libc.so: __getauxval". As the
> __getauxval reference comes from have_ieee_hw_p in libgcc, presumably you
> need to allow that PLT reference in localplt.data with an appropriate
> comment, as it won't be readily possible to avoid it.
The __getauxval call happens from IFUNC resolvers and violates current
guidelines regarding what can be done from IFUNC resolvers. This is
another reason to get rid of the PLT reference.
My IFUNC resolver enhancements are not ready for 2.26, and I plan to
wait for DJ's dl-minimal malloc improvements to land, rather than
rolling my own memory allocator to back the IFUNC resolver queue.
Thanks,
Florian