linux-kernel - Re: [PATCH 3/3] powerpc: enable support for GCC plugins

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Message-Id: <d7861b43-cda8-0212-b2fb-7331c8f6996d@au1.ibm.com>
Date:   Wed, 7 Dec 2016 16:45:54 +1100
From:   Andrew Donnellan <andrew.donnellan@....ibm.com>
To:     linuxppc-dev@...ts.ozlabs.org, kernel-hardening@...ts.openwall.com,
        keescook@...omium.org, re.emese@...il.com
Cc:     pageexec@...email.hu, spender@...ecurity.net,
        linux-kernel@...r.kernel.org, mmarek@...e.com,
        linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 3/3] powerpc: enable support for GCC plugins

On 06/12/16 17:28, Andrew Donnellan wrote:
> Enable support for GCC plugins on powerpc.
>
> Add an additional version check in gcc-plugins-check to advise users to
> upgrade to gcc 5.2+ on powerpc to avoid issues with header files (gcc <=
> 4.6) or missing copies of rs6000-cpus.def (4.8 to 5.1 on 64-bit targets).
>
> Signed-off-by: Andrew Donnellan <andrew.donnellan@....ibm.com>
>
> ---
>
> Open to bikeshedding on the gcc version check.
>
> Compile tested with all plugins enabled on gcc 4.6-6.2,
> x86->ppc{32,64,64le} and 4.8-6.2 ppc64le->ppc{32,64,64le}. Thanks to
> Chris Smart for help with this.
>
> I think it's best to take this through powerpc#next with an ACK from
> Kees/Emese?
> ---
>  arch/powerpc/Kconfig         | 1 +
>  scripts/Makefile.gcc-plugins | 8 ++++++++

Will respin with an update to Documentation/gcc-plugins.txt as well.

-- 
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan@....ibm.com  IBM Australia Limited