linux-kernel - Re: [PATCH] MIPS: Avoid macro redefinitions

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Date:   Mon, 19 Jul 2021 15:23:29 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        list@...ndingux.net, Kees Cook <keescook@...omium.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH] MIPS: Avoid macro redefinitions

On Mon, Jul 19, 2021 at 3:11 PM Paul Cercueil <paul@...pouillou.net> wrote:
>
> Hi Nick,
>
> Le lun., juil. 19 2021 at 14:43:46 -0700, Nick Desaulniers
> <ndesaulniers@...gle.com> a écrit :
> > Same question for GAS version support for virt?
> > Documentation/process/changes.rst
> > says GNU binutils 2.23+ is required for building the kernel.
> > If we still need to support, have you tested this change on such an
> > older version of GNU binutils?
>
> I have no idea about virt support - I hope Thomas can answer this.

Perhaps you can do some archeology on the commit messages of binutils-gdb?

binutils-gdb commit 9785fc2a4d22 ("MIPS: Fix XPA base and
Virtualization ASE instruction handling")
looks interesting.
commit b015e599c772e does too. Looks like git tags aren't used, but
checking out those sources might have a version hardcoded in a
Makefile.

>
> I did build with binutils 2.35; 2.23 sounds very old.
-- 
Thanks,
~Nick Desaulniers