From: Nathan Chancellor <nathan@kernel.org>
To: Miguel Ojeda <ojeda@kernel.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>,
Marco Elver <elver@google.com>, Kees Cook <keescook@chromium.org>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Uros Bizjak <ubizjak@gmail.com>,
Dan Li <ashimida@linux.alibaba.com>,
Alexander Potapenko <glider@google.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/5] compiler-gcc: document minimum version for `__no_sanitize_coverage__`
Date: Fri, 21 Oct 2022 14:20:13 -0700 [thread overview]
Message-ID: <Y1MNDU8zX4apv3E+@dev-arch.thelio-3990X> (raw)
In-Reply-To: <20221021115956.9947-5-ojeda@kernel.org>
On Fri, Oct 21, 2022 at 01:59:56PM +0200, Miguel Ojeda wrote:
> The attribute was added in GCC 12.1.
>
> This will simplify future cleanups, and is closer to what we do
> in `compiler_attributes.h`.
>
> Link: https://godbolt.org/z/MGbT76j6G
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> ---
> include/linux/compiler-gcc.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
> index 7f2c2bb73815..7af9e34ec261 100644
> --- a/include/linux/compiler-gcc.h
> +++ b/include/linux/compiler-gcc.h
> @@ -92,6 +92,9 @@
>
> #define __no_sanitize_undefined __attribute__((__no_sanitize_undefined__))
>
> +/*
> + * Only supported since gcc >= 12
> + */
> #if defined(CONFIG_KCOV) && __has_attribute(__no_sanitize_coverage__)
> #define __no_sanitize_coverage __attribute__((__no_sanitize_coverage__))
> #else
> --
> 2.38.1
>
>
next prev parent reply other threads:[~2022-10-21 21:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 11:59 [PATCH 1/5] compiler-gcc: be consistent with underscores use for `no_sanitize` Miguel Ojeda
2022-10-21 11:59 ` [PATCH 2/5] compiler-gcc: remove attribute support check for `__no_sanitize_address__` Miguel Ojeda
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:18 ` Nathan Chancellor
2022-10-21 11:59 ` [PATCH 3/5] compiler-gcc: remove attribute support check for `__no_sanitize_thread__` Miguel Ojeda
2022-10-21 14:55 ` Marco Elver
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:18 ` Nathan Chancellor
2022-10-21 11:59 ` [PATCH 4/5] compiler-gcc: remove attribute support check for `__no_sanitize_undefined__` Miguel Ojeda
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:19 ` Nathan Chancellor
2022-10-21 11:59 ` [PATCH 5/5] compiler-gcc: document minimum version for `__no_sanitize_coverage__` Miguel Ojeda
2022-10-21 14:55 ` Marco Elver
2022-10-21 16:11 ` Kees Cook
2022-10-21 21:20 ` Nathan Chancellor [this message]
2022-10-21 16:11 ` [PATCH 1/5] compiler-gcc: be consistent with underscores use for `no_sanitize` Kees Cook
2022-10-21 21:17 ` Nathan Chancellor
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