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Date: Sat, 19 Oct 2019 02:21:44 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Sami Tolvanen <samitolvanen@...gle.com>, Will Deacon <will@...nel.org>,
Catalin Marinas <catalin.marinas@....com>, Steven Rostedt <rostedt@...dmis.org>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>, Dave Martin <Dave.Martin@....com>,
Kees Cook <keescook@...omium.org>, Laura Abbott <labbott@...hat.com>,
Mark Rutland <mark.rutland@....com>,
clang-built-linux <clang-built-linux@...glegroups.com>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 06/18] add support for Clang's Shadow Call Stack (SCS)
On Fri, Oct 18, 2019 at 10:33 PM Nick Desaulniers
<ndesaulniers@...gle.com> wrote:
>
> Sami pointed out to me off thread that __has_attribute would only
> check `no_sanitize`, not `shadow-call-stack`. So maybe best to keep
> the definition here (include/linux/compiler-clang.h), but wrapped in a
> `__has_feature` check so that Clang 6.0 doesn't start complaining.
Ah, good point -- agreed!
Cheers,
Miguel
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