[RFC2 PATCH v6 00/19] ILP32 for ARM64

Catalin Marinas
2015-12-04T17:18:56Z

On Fri, Dec 04, 2015 at 06:35:50PM +0300, Yury Norov wrote:
> On Thu, Dec 03, 2015 at 05:59:55PM +0000, Catalin Marinas wrote:
> > On Wed, Nov 18, 2015 at 12:16:40AM +0300, Yury Norov wrote:
> > > - ILP32 VDSO code excluded. It's not mandatory, and caused questions
> > > during review process. We definitely make sure we will follow up
> > > with a VDSO later on because it is needed for performance reasons;
> >
> > I already asked in one of the patches, don't you need a VDSO for
> > sigreturn?
>
> I didn't realise it's mandatory for ARMv8 when removed it. I'll back
> it, but I think rework required anyway.

The alternative is to use SA_RESTORER but AFAIK, its use has been
deprecated. I don't know what aarch64 glibc does if it doesn't have a
vdso.

--
Catalin