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SubjectRe: [PATCH v7 1/2] Kbuild: make DWARF version a choice
On Fri, Feb 5, 2021 at 4:49 AM Mark Wielaard <> wrote:
> Hi Nick,
> On Thu, 2021-02-04 at 14:06 -0800, Nick Desaulniers wrote:
> > On Thu, Feb 4, 2021 at 12:28 PM Mark Wielaard <> wrote:
> > > I believe so yes, we did a mass-rebuild of all of Fedora a few weeks
> > > back with a GCC11 pre-release and did find some tools which weren't
> > > ready, but as far as I know all have been fixed now. I did try to

I guess I'm curious whether came up during the
mass rebuild of all of Fedora a few weeks ago? Assuming the Linux
kernel was part of that test, those warnings would have been both new
and obviously related to changing the implicit default DWARF version.
It's possible it was a kernel build without debug info enabled or a
kernel version old enough to not have that linker warning enabled, I
suppose. It might be good to check though, that way changes to GCC
that impact the kernel are caught even sooner or ASAP. New diagnostics
added every compiler release come to mind in particular.
~Nick Desaulniers

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