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Re: [RFC/PATCH] ARM: VDSO support
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- Cc: <libc-alpha at sourceware dot org>
- Date: Tue, 7 Apr 2015 17:15:39 +0000
- Subject: Re: [RFC/PATCH] ARM: VDSO support
- Authentication-results: sourceware.org; auth=none
- References: <1428081934-22419-1-git-send-email-nathan_lynch at codesourcery dot com> <alpine dot DEB dot 2 dot 10 dot 1504071643550 dot 20250 at digraph dot polyomino dot org dot uk> <55240E78 dot 7020807 at linaro dot org>
On Tue, 7 Apr 2015, Adhemerval Zanella wrote:
> On 07-04-2015 13:46, Joseph Myers wrote:
> > On Fri, 3 Apr 2015, Nathan Lynch wrote:
> >
> >> This patch adds support for the ARM VDSO to glibc. I have run make
> >> check on OMAP5 using kernels with and without the VDSO, with no new
> >> failures.
> > How does this compare to the implementations for other architectures?
> > What are the points on which the VDSO interfaces vary between
> > architectures? It would seem desirable for the code to be factored so
> > that the ARM code only contains the minimal set of things that are
> > necessarily ARM-specific (for example, just declaring the ARM-specific
> > choices before including architecture-independent files shared by all
> > architectures that can get these functions from a VDSO).
> >
> I see the factoring work being another subsequent patch that should not
> impede the inclusion of proposed modification.
I see it as a preparatory cleanup that is (unlike the main change) not
blocked on the kernel changes getting into kernel.org sources.
--
Joseph S. Myers
joseph@codesourcery.com