linux-kernel - Re: [PATCH] Makefile: fix GDB warning with CONFIG

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Message-ID: <CAK7LNAS_LpZnweujqVwZ1kL0eDYR726k35U_yx1djqNE0bk6Rw@mail.gmail.com>
Date:   Sat, 22 May 2021 10:06:13 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Fangrui Song <maskray@...gle.com>,
        Elliot Berman <eberman@...cinc.com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Peter Collingbourne <pcc@...gle.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kbuild <linux-kbuild@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Makefile: fix GDB warning with CONFIG_RELR

On Fri, May 21, 2021 at 6:36 PM Lee Jones <lee.jones@...aro.org> wrote:
>
> On Tue, 23 Mar 2021 at 19:06, Nathan Chancellor <nathan@...nel.org> wrote:
>>
>> On Thu, Mar 18, 2021 at 05:07:06PM -0700, Nick Desaulniers wrote:
>> > GDB produces the following warning when debugging kernels built with
>> > CONFIG_RELR:
>> >
>> > BFD: /android0/linux-next/vmlinux: unknown type [0x13] section `.relr.dyn'
>> >
>> > when loading a kernel built with CONFIG_RELR into GDB. It can also
>> > prevent debugging symbols using such relocations.
>> >
>> > Peter sugguests:
>> >   [That flag] means that lld will use dynamic tags and section type
>> >   numbers in the OS-specific range rather than the generic range. The
>> >   kernel itself doesn't care about these numbers; it determines the
>> >   location of the RELR section using symbols defined by a linker script.
>> >
>> > Link: https://github.com/ClangBuiltLinux/linux/issues/1057
>> > Suggested-by: Peter Collingbourne <pcc@...gle.com>
>> > Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
>>
>> Reviewed-by: Nathan Chancellor <nathan@...nel.org>
>
>
>  Masahiro,
>
> Would you mind sharing your plans for this reviewed patch please?
>


Do you want me to pick up this?

Or, do you think it should be done by the committer of
5cf896fb6be3effd9aea455b22213e27be8bdb1d ?


-- 
Best Regards
Masahiro Yamada