Re: [stretch] ABI bump for 4.9 with retpoline support?

From	Ben Hutchings <ben@decadent.org.uk>
Newsgroups	linux.debian.kernel
Subject	Re: [stretch] ABI bump for 4.9 with retpoline support?
Date	2018-02-17 21:00 +0100
Message-ID	<vkgOl-2Vg-7@gated-at.bofh.it> (permalink)
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On Fri, 2018-02-16 at 18:30 +0100, Yves-Alexis Perez wrote:
> On Fri, 2018-02-16 at 11:54 +0100, Yves-Alexis Perez wrote:
> > 
> > There's a bunch of ABI breaks in 4.9.81 again, and we ignored/reverted a lot
> > of them since 4.9.65+kaiser, so maybe it'll be a good idea at one point, but I
> > don't have a strong opinion on this right now.
> 
> I've pushed my work to the stretch branch. It builds fine on x86 and powerpc
> after some fixes. When built with gcc-6 just uploaded to security-master,
> retpoline is enabled:
> 
> /sys/devices/system/cpu/vulnerabilities/spectre_v2:Mitigation: Full generic
> retpoline
> 
> Depending on the opinion, we can either revert the various ABI fixes and bump
> the ABI, or try an upload as-is.

I think we should bump ABI again.  We should also do the equivalent of
these changes in sid, with s/gcc-7/gcc-6/.

  * [x86] Add versioned build-dependency on gcc-7 for retpoline support
  * [x86] linux-compiler-gcc-7-x86: Add versioned dependency on gcc-7 for
    retpoline support
  * [x86] linux-headers: Depend on updated linux-compiler-gcc-7-x86

Ben.

-- 
Ben Hutchings
One of the nice things about standards is that there are so many of
them.

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[stretch] ABI bump for 4.9 with retpoline support? Yves-Alexis Perez <corsac@debian.org> - 2018-02-16 12:00 +0100
  Re: [stretch] ABI bump for 4.9 with retpoline support? Yves-Alexis Perez <corsac@debian.org> - 2018-02-16 18:40 +0100
    Re: [stretch] ABI bump for 4.9 with retpoline support? Yves-Alexis Perez <corsac@debian.org> - 2018-02-17 21:00 +0100
      Re: [stretch] ABI bump for 4.9 with retpoline support? Moritz Mühlenhoff <jmm@inutil.org> - 2018-02-18 12:20 +0100
    Re: [stretch] ABI bump for 4.9 with retpoline support? Ben Hutchings <ben@decadent.org.uk> - 2018-02-17 21:00 +0100

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