From: Brian Gerst <brgerst@gmail.com>
To: Andy Lutomirski <luto@kernel.org>
Cc: "the arch/x86 maintainers" <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Christopherson, Sean J" <sean.j.christopherson@intel.com>
Subject: Re: [PATCH 0/2] Clean up x86_32 stackprotector
Date: Mon, 5 Oct 2020 19:10:39 -0400 [thread overview]
Message-ID: <CAMzpN2j9h7FjpG_s_a09vKTCV+CYafjsKgK-k2RH7TG59FWz-w@mail.gmail.com> (raw)
In-Reply-To: <cover.1601925251.git.luto@kernel.org>
On Mon, Oct 5, 2020 at 3:30 PM Andy Lutomirski <luto@kernel.org> wrote:
>
> x86_32 stackprotector is a maintenance nightmare. Clean it up. This
> disables stackprotector on x86_32 on GCC 8.1 and on all clang
> versions -- I'll file a bug for the latter.
This should be doable on 64-bit too. All that would need to be done
is to remove the zero-base of the percpu segment (which would simplify
alot of other code).
--
Brian Gerst
next prev parent reply other threads:[~2020-10-05 23:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 19:30 [PATCH 0/2] Clean up x86_32 stackprotector Andy Lutomirski
2020-10-05 19:30 ` [PATCH 1/2] x86/stackprotector/32: Make the canary into a regular percpu variable Andy Lutomirski
2020-10-06 2:29 ` Sean Christopherson
2020-10-06 4:51 ` Andy Lutomirski
2020-10-06 8:26 ` Peter Zijlstra
2020-10-06 17:14 ` Brian Gerst
2020-10-07 1:16 ` Andy Lutomirski
2020-10-05 19:30 ` [PATCH 2/2] x86/entry/32: Remove leftover macros after stackprotector cleanups Andy Lutomirski
2020-10-06 8:34 ` Peter Zijlstra
2020-10-05 23:10 ` Brian Gerst [this message]
2020-10-06 8:32 ` [PATCH 0/2] Clean up x86_32 stackprotector Peter Zijlstra
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