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Date: Fri, 11 Jan 2019 09:20:05 -0800
From: Kees Cook <>
To: Masahiro Yamada <>
Cc: linux-kbuild <>, 
	Kernel Hardening <>, Emese Revfy <>, 
	LKML <>, Michal Marek <>
Subject: Re: [PATCH 2/2] kbuild: simplify GCC plugin build rules

On Fri, Jan 11, 2019 at 1:19 AM Masahiro Yamada
<> wrote:
> GCC-plugin is the only user of the shared library build rules in
> scripts/ Hence, those rules do not need to be treewide
> available.
> The build rules in scripts/ are written in a too generic
> way. I guess the main reason is because commit 24403874316a ("Shared
> library support") revived the code ripped off by commit 62e2210798ed
> ("kbuild: drop shared library support from").
> Currently, every plugin is built from a single C file. So, all we need
> is a pattern rule to create from %.c.

What'll it look like if we get a multi-file plugin in the future?
There are existing out-of-tree plugins that this change may make
porting more difficult...

Kees Cook

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