Date: Mon, 16 Feb 2015 14:27:12 -0800 From: Craig Rodrigues <rodrigc@FreeBSD.org> To: Brooks Davis <brooks@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: <CAG=rPVdd7Qc0-2M7KEsNROCj%2BbRbK7XjLnCjywwrB83D6DCGYQ@mail.gmail.com> In-Reply-To: <20150216214242.GA524@spindle.one-eyed-alien.net> References: <CAG=rPVc7nccxPSiBZXyHZ09d1gc597h_aok5vONtE07RvNz0-Q@mail.gmail.com> <08E18A70-59E0-441D-A705-0F3F3B7B9998@FreeBSD.org> <CAG=rPVcmQm8NXpqBG7JsDzkrUJEvMrvLVqoxyfb5bEHNWoenbw@mail.gmail.com> <20150216214242.GA524@spindle.one-eyed-alien.net>
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On Mon, Feb 16, 2015 at 1:42 PM, Brooks Davis <brooks@freebsd.org> wrote: > 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: > > > > > > > > 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: > > > > pkg install lang/clang-devel > > export PATH=$PATH:/usr/local/llvm-devel/bin > > scan-build cc a.c > > > > 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] ='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. > > > > 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 > > > > > > 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 > they set up > the environment so modules can be found. > Ah, OK! scan-view-devel worked. It might be nice to have a patch in the port which changes the message from scan-build to tell folks to invoke scan-view-devel instead of scan-view. -- Craig
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