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Date:      Mon, 16 Feb 2015 21:42:42 +0000
From:      Brooks Davis <brooks@freebsd.org>
To:        Craig Rodrigues <rodrigc@FreeBSD.org>
Cc:        "freebsd-testing@freebsd.org" <freebsd-testing@freebsd.org>, freebsd-toolchain@freebsd.org, Dimitry Andric <dim@freebsd.org>
Subject:   Re: clang and scanbuild
Message-ID:  <20150216214242.GA524@spindle.one-eyed-alien.net>
In-Reply-To: <CAG=rPVcmQm8NXpqBG7JsDzkrUJEvMrvLVqoxyfb5bEHNWoenbw@mail.gmail.com>
References:  <CAG=rPVc7nccxPSiBZXyHZ09d1gc597h_aok5vONtE07RvNz0-Q@mail.gmail.com> <08E18A70-59E0-441D-A705-0F3F3B7B9998@FreeBSD.org> <CAG=rPVcmQm8NXpqBG7JsDzkrUJEvMrvLVqoxyfb5bEHNWoenbw@mail.gmail.com>

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On Mon, Feb 16, 2015 at 01:21:34PM -0800, Craig Rodrigues wrote:
> On Wed, Feb 11, 2015 at 1:43 PM, Dimitry Andric <dim@freebsd.org> wrote:
>=20
> >
> > Yes, choose either lang/clang-devel, or lang/clangXY, where XY is the
> > version you are interested in.
> >
> >
> > >   (2)  is there enough llvm source in FreeBSD that we can build this =
in
> > >         FreeBSD instead of checking out llvm source?
> >
> > You can already run the analyzers with the clang executable in base,
> > unless you built your world using WITHOUT_CLANG_FULL.  You do need perl
> > installed, of course.
> >
> >
> Nice!  I did this:
>=20
> pkg install lang/clang-devel
> export PATH=3D$PATH:/usr/local/llvm-devel/bin
> scan-build cc a.c
>=20
> scan-build: Using '/usr/local/llvm-devel/bin/clang' for static analysis
> a.c:10:10: warning: Use of memory after it is freed
>     a[5] =3D'b';
>     ~~~~ ^
> 1 warning generated.
> scan-build: 1 bug found.
> scan-build: Run 'scan-view /tmp/scan-build-2015-02-16-211517-60875-1' to
> examine bug reports.
>=20
> scan-view /tmp/scan-build-2015-02-16-211517-60875-1
> Traceback (most recent call last):
>   File "/usr/local/llvm-devel/bin/scan-view", line 131, in <module>
>     main()
>   File "/usr/local/llvm-devel/bin/scan-view", line 128, in main
>     run(port, options, root)
>   File "/usr/local/llvm-devel/bin/scan-view", line 57, in run
>     import ScanView
> ImportError: No module named ScanView
>=20
>=20
> It looks like some stuff for scan-view is missing from the port.  Do you
> have any
> ideas offhand what is missing?  It's not so important, because the
> results of scan-build can be opened up in any web browser, independently =
of
> scan-view.

You should use the wrappers in /usr/local/bin (e.g. scan-view-devel) as the=
y set up
the environment so modules can be found.

-- Brooks

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