From: Nathan Chancellor <nathan@kernel.org>
To: Nick Desaulniers <ndesaulniers@google.com>,
Kees Cook <keescook@chromium.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Bill Wendling <wcw@google.com>,
Sami Tolvanen <samitolvanen@google.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
Ard Biesheuvel <ardb@kernel.org>, Will Deacon <will@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
x86@kernel.org, Borislav Petkov <bp@alien8.de>,
Martin Liska <mliska@suse.cz>, Marco Elver <elver@google.com>,
Jonathan Corbet <corbet@lwn.net>,
Fangrui Song <maskray@google.com>,
linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org,
Dmitry Vyukov <dvyukov@google.com>,
johannes.berg@intel.com, linux-toolchains@vger.kernel.org,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Miguel Ojeda <ojeda@kernel.org>
Subject: Re: [PATCH v2 2/3] compiler_attributes.h: cleanups for GCC 4.9+
Date: Mon, 21 Jun 2021 16:42:09 -0700 [thread overview]
Message-ID: <b8a97953-762f-e707-c1ba-4ea25e9ad259@kernel.org> (raw)
In-Reply-To: <20210621231822.2848305-3-ndesaulniers@google.com>
On 6/21/2021 4:18 PM, 'Nick Desaulniers' via Clang Built Linux wrote:
> Since
> commit 6ec4476ac825 ("Raise gcc version requirement to 4.9")
> we no longer support building the kernel with GCC 4.8; drop the
> preprocess checks for __GNUC_MINOR__ version. It's implied that if
> __GNUC_MAJOR__ is 4, then the only supported version of __GNUC_MINOR__
> left is 9.
>
> Cc: Miguel Ojeda <ojeda@kernel.org>
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
> ---
> include/linux/compiler_attributes.h | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
> index 225511b17223..84b1c970acb3 100644
> --- a/include/linux/compiler_attributes.h
> +++ b/include/linux/compiler_attributes.h
> @@ -27,7 +27,7 @@
> */
> #ifndef __has_attribute
> # define __has_attribute(x) __GCC4_has_attribute_##x
> -# define __GCC4_has_attribute___assume_aligned__ (__GNUC_MINOR__ >= 9)
> +# define __GCC4_has_attribute___assume_aligned__ 1
> # define __GCC4_has_attribute___copy__ 0
> # define __GCC4_has_attribute___designated_init__ 0
> # define __GCC4_has_attribute___externally_visible__ 1
> @@ -35,8 +35,8 @@
> # define __GCC4_has_attribute___noclone__ 1
> # define __GCC4_has_attribute___no_profile_instrument_function__ 0
> # define __GCC4_has_attribute___nonstring__ 0
> -# define __GCC4_has_attribute___no_sanitize_address__ (__GNUC_MINOR__ >= 8)
> -# define __GCC4_has_attribute___no_sanitize_undefined__ (__GNUC_MINOR__ >= 9)
> +# define __GCC4_has_attribute___no_sanitize_address__ 1
> +# define __GCC4_has_attribute___no_sanitize_undefined__ 1
> # define __GCC4_has_attribute___fallthrough__ 0
> #endif
>
>
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next prev parent reply other threads:[~2021-06-21 23:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 23:18 [PATCH v2 0/3] no_profile fn attr and Kconfig for GCOV+PGO Nick Desaulniers
2021-06-21 23:18 ` [PATCH v2 1/3] compiler_attributes.h: define __no_profile, add to noinstr Nick Desaulniers
2021-06-21 23:41 ` Nathan Chancellor
2021-06-21 23:18 ` [PATCH v2 2/3] compiler_attributes.h: cleanups for GCC 4.9+ Nick Desaulniers
2021-06-21 23:31 ` Miguel Ojeda
2021-06-21 23:42 ` Nathan Chancellor [this message]
2021-06-21 23:18 ` [PATCH v2 3/3] Kconfig: add ARCH_WANTS_NO_INSTR+CC_HAS_NO_PROFILE_FN_ATTR, depend on for GCOV and PGO Nick Desaulniers
2021-06-21 23:45 ` Nathan Chancellor
2021-06-22 7:25 ` Peter Zijlstra
2021-06-22 8:09 ` Marco Elver
2021-06-22 9:05 ` Mark Rutland
2021-06-22 11:10 ` Will Deacon
2021-06-22 9:33 ` Heiko Carstens
2021-06-22 9:35 ` Peter Oberparleiter
2021-06-22 7:25 ` [PATCH v2 0/3] no_profile fn attr and Kconfig for GCOV+PGO Peter Zijlstra
2021-06-22 18:19 ` Kees Cook
2021-06-23 6:15 ` Kees Cook
2021-06-24 19:36 ` Nick Desaulniers
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