linux-kernel - Re: sparse on scripts/kconfig/*.c

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Message-ID: <20170510205357.xshdaack6mwku5np@mwanda>
Date:   Wed, 10 May 2017 23:53:57 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-kbuild <linux-kbuild@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, smatch@...r.kernel.org
Subject: Re: sparse on scripts/kconfig/*.c

I have created some new tools to make this process easier.

1) First you still have to edit the Makefile:

-HOSTCC       = gcc
+HOSTCC       = ~/progs/smatch/devel/cgcc

2) Build the data with this command:

	~/progs/smatch/devel/smatch_scripts/build_generic_data.sh --target scripts/

The --target scripts/ is because we want to run smatch on the scripts/
directory.

3) Run smatch:

	~/progs/smatch/devel/smatch_scripts/test_generic.sh --target scripts/

I just wrote this code today so it might be a bit rough perhaps.  Let me
know if you have any issues.  It doesn't find anything like I said
before, but hopefully this can help other people who want to run Smatch
on user space code.

regards,
dan carpenter