linux-kernel - Re: [PATCH v7 1/2] Kbuild: make DWARF version a choice

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Message-ID: <20210206151151.GB2851@wildebeest.org>
Date:   Sat, 6 Feb 2021 16:11:51 +0100
From:   Mark Wielaard <mark@...mp.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Jakub Jelinek <jakub@...hat.com>, Nick Clifton <nickc@...hat.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Sedat Dilek <sedat.dilek@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Fangrui Song <maskray@...gle.com>,
        Caroline Tice <cmtice@...gle.com>, Yonghong Song <yhs@...com>,
        Jiri Olsa <jolsa@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Arvind Sankar <nivedita@...m.mit.edu>,
        Nathan Chancellor <nathan@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>
Subject: Re: [PATCH v7 1/2] Kbuild: make DWARF version a choice

Hi Nick,

On Fri, Feb 05, 2021 at 01:18:11PM -0800, Nick Desaulniers wrote:
> On Fri, Feb 5, 2021 at 4:49 AM Mark Wielaard <mark@...mp.org> wrote:
> I guess I'm curious whether
> https://bugzilla.redhat.com/show_bug.cgi?id=1922707 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.

Yes, looking at the build.log that warning was also present.  But the
dwarves pahole update to process DWARF5 was more important.  Also at
first it was believed this came from the binutils ld linker
scripts. Which were also updated first. Once your patch is accepted we
can resolve that bug.

Cheers,

Mark