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Re: [RFC 2.0] Implementing hwcap2
- From: "Ryan S. Arnold" <ryan dot arnold at gmail dot com>
- To: Roland McGrath <roland at hack dot frob dot com>
- Cc: "Ryan S. Arnold" <rsa at us dot ibm dot com>, libc-alpha <libc-alpha at sourceware dot org>
- Date: Tue, 9 Apr 2013 13:12:42 -0500
- Subject: Re: [RFC 2.0] Implementing hwcap2
- References: <20130328 dot 173934 dot 1310725546115298719 dot davem at davemloft dot net> <201303281931 dot 43830 dot vapier at gentoo dot org> <20130328234033 dot 9197A2C0A7 at topped-with-meat dot com> <20130328 dot 201048 dot 1654197573467873843 dot davem at davemloft dot net> <20130408220507 dot 5699D2C088 at topped-with-meat dot com>
On Mon, Apr 8, 2013 at 5:05 PM, Roland McGrath <roland@hack.frob.com> wrote:
> The calling convention for IFUNC resolvers is machine-specific.
> Thus, it's up to each machine maintainer to decide what it should be
> for his machine. Given how rare IFUNC use still is, I'd say it's
> also up to each machine maintainer to decide whether or not an
> incompatible change to the convention is acceptable at this stage.
>
> It might be nice if these conventions were unified, but to get there
> from the status quo would require consensus among all the maintainers
> for machines that now support IFUNC at all.
>
> Ryan, I think what you need to do is go back and split your change up
> into the generic and machine-specific parts. First, we can review
> the generic changes and come to a resolution on those parts. (I
> reviewed them before, but since then I've concluded that there is
> some muddlation about what it means for 64-bit configurations and I
> think we should discuss it more.) Once that's done, you can send a
> separate machine-specific change for each machine and hash out the
> IFUNC resolver calling convention with that machine's maintainer(s).
Thanks everyone who responded so far.
I'll do as Roland suggests and split the changes up so we can continue
to refine the IFUNC resolver separately from the rest of the HWCAP2
feature.
Thanks,
Ryan