linux-kernel - Re: [PATCH v6 0/6] Introduce GCC plugin infrastructure

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Message-ID: <20160412174607.GA92143@davidb.org>
Date:	Tue, 12 Apr 2016 11:46:07 -0600
From:	David Brown <david.brown@...aro.org>
To:	Emese Revfy <re.emese@...il.com>
Cc:	linux-kbuild@...r.kernel.org, pageexec@...email.hu,
	spender@...ecurity.net, kernel-hardening@...ts.openwall.com,
	mmarek@...e.com, keescook@...omium.org, linux@...musvillemoes.dk,
	fengguang.wu@...el.com, dvyukov@...gle.com,
	linux-kernel@...r.kernel.org, yamada.masahiro@...ionext.com
Subject: Re: [PATCH v6 0/6] Introduce GCC plugin infrastructure

On Thu, Apr 07, 2016 at 11:10:23PM +0200, Emese Revfy wrote:
>This patch set introduce the GCC plugin infrastructure with examples for testing
>and documentation.
>
>GCC plugins are loadable modules that provide extra features to the compiler.
>They are useful for runtime instrumentation and static analysis.
>
>The infrastructure supports all gcc versions from 4.5 to 6.0, building
>out-of-tree modules and building in a separate directory. Cross-compilation
>is supported too but currently only the x86, arm and arm64 architectures enables plugins.
>
>This infrastructure was ported from grsecurity/PaX. It is a CII project
>supported by the Linux Foundation.
>
>Emese Revfy (6):
> Shared library support
> GCC plugin infrastructure
> The GCC plugin infrastructure supports the arm and arm64 architectures too
> Add Cyclomatic complexity plugin
> Documentations of the GCC plugin infrastructre
> Add sancov plugin

I've tested the v6 patches on arm, and partially on arm64.  The arm64
gcc has a bug in make install that doesn't install all necessary
headers to build plugins.  I believe the patch will work once that
version gets out.  It does, however, print a helpful message now
explaining the likely cause of the failure.

Tested-by: David Brown <david.brown@...aro.org>