Re: [RFC2 PATCH v6 00/19] ILP32 for ARM64

From	Catalin Marinas <catalin.marinas@arm.com>
Newsgroups	linux.kernel
Subject	Re: [RFC2 PATCH v6 00/19] ILP32 for ARM64
Date	2015-12-04 18:20 +0100
Message-ID	<qC2bx-5CT-35@gated-at.bofh.it> (permalink)
References	<qvVPr-1Xk-3@gated-at.bofh.it> <qBGum-98-21@gated-at.bofh.it> <qC0CK-4wp-23@gated-at.bofh.it>
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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
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Re: [RFC2 PATCH v6 00/19] ILP32 for ARM64 Catalin Marinas <catalin.marinas@arm.com> - 2015-12-03 19:10 +0100
  Re: [RFC2 PATCH v6 00/19] ILP32 for ARM64 Yury Norov <ynorov@caviumnetworks.com> - 2015-12-04 16:40 +0100
    Re: [RFC2 PATCH v6 00/19] ILP32 for ARM64 Catalin Marinas <catalin.marinas@arm.com> - 2015-12-04 18:20 +0100

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