linux-kernel - Re: [PATCH] gcc-plugins: Disable GCC plugins for compile test builds

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Message-ID: <2a4a73bc-03a7-4bac-9d56-dad85df3e1b8@sirena.org.uk>
Date: Tue, 15 Apr 2025 21:41:06 +0100
From: Mark Brown <broonie@...nel.org>
To: Palmer Dabbelt <palmer@...belt.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>, kees@...nel.org,
	mic@...ikod.net, gnoack@...gle.com, Arnd Bergmann <arnd@...db.de>,
	linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH] gcc-plugins: Disable GCC plugins for compile test builds

On Tue, Apr 15, 2025 at 01:26:34PM -0700, Palmer Dabbelt wrote:
> On Mon, 07 Apr 2025 13:57:32 PDT (-0700), broonie@...nel.org wrote:

> > In current mainline x86_64 allmodconfig builds done with tuxmake GCC 13
> > and GCC 14 toolchains (which are Debian ones packaged up into containers)
> > generate ICEs in landlock:

> This one's been biting me too.  It manifests for me on gcc-12 and gcc-13
> (both locally built toolchains off the release branches, cross compiling for
> RISC-V).

> Tested-by: Palmer Dabbelt <palmer@...osinc.com>

Kees has a narrower workaround for this:

    https://lore.kernel.org/all/20250409151154.work.872-kees@kernel.org/

It's in -next but not pending-fixes, I'm not sure what the plan is for
getting this into mainline - Kees?  The commit log mentions getting it
in for -rc2 so I think the plan is to merge it as a fix.

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