From: Michal Marek <mmarek@suse.com>
To: Kees Cook <keescook@chromium.org>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
x86@kernel.org, linux-kbuild@vger.kernel.org
Subject: Re: [PATCH v2] kbuild: Abort build on bad stack protector flag
Date: Tue, 26 Jul 2016 23:52:22 +0200 [thread overview]
Message-ID: <5797DB96.2020904@suse.com> (raw)
In-Reply-To: <20160726212620.GA8511@www.outflux.net>
Dne 26.7.2016 v 23:26 Kees Cook napsal(a):
> Before, the stack protector flag was sanity checked before .config had
> been reprocessed. This meant the build couldn't be aborted early, and
> only a warning could be emitted followed later by the compiler blowing
> up with an unknown flag. This has caused a lot of confusion over time,
> so this splits the flag selection from sanity checking and performs the
> sanity checking after the make has been restarted from a reprocessed
> .config, so builds can be aborted as early as possible now.
>
> Additionally moves the x86-specific sanity check to the same location,
> since it suffered from the same warn-then-wait-for-compiler-failure
> problem.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> v2:
> - fix use of SRCARCH, mmarek
> - simplify stackp-check usage, mmarek
Applied to kbuild.git#kbuild.
Michal
prev parent reply other threads:[~2016-07-26 21:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-26 21:26 [PATCH v2] kbuild: Abort build on bad stack protector flag Kees Cook
2016-07-26 21:52 ` Michal Marek [this message]
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