linux-kernel - Re: [PATCH] kbuild, LLVMLinux: Add -Werror to cc-option to support clang

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Message-ID: <CAK7LNAQfNnqwNFir9pp6XVPTPahkJ7qnk4d7GO_zdBZk8j4COA@mail.gmail.com>
Date:   Wed, 12 Apr 2017 04:38:45 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Mark Charlebois <charlebm@...il.com>,
        Behan Webster <behanw@...verseincode.com>,
        Michal Marek <mmarek@...e.com>,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Emese Revfy <re.emese@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kbuild, LLVMLinux: Add -Werror to cc-option to support clang

2017-04-01 5:38 GMT+09:00 Arnd Bergmann <arnd@...db.de>:
> From: Mark Charlebois <charlebm@...il.com>
>
> Clang will warn about unknown warnings but will not return false
> unless -Werror is set. GCC will return false if an unknown
> warning is passed.
>
> Adding -Werror make both compiler behave the same.
>
> [arnd: it turns out we need the same patch for testing whether -ffunction-sections
>        works right with gcc. I've build tested extensively with this patch
>        applied, so let's just merge this one now.]
>
> Signed-off-by: Mark Charlebois <charlebm@...il.com>
> Signed-off-by: Behan Webster <behanw@...verseincode.com>
> Reviewed-by: Jan-Simon Möller <dl9pf@....de>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied to linux-kbuild/kbuild.
Thanks!




-- 
Best Regards
Masahiro Yamada