clang static analyzer: use it!

[Dave Jones]

On Fri, Sep 04, 2009 at 08:30:14AM +0200, Jim Meyering wrote:
 > Quick summary: use this tool:
 > 
 >   http://clang-analyzer.llvm.org/
 > 
 > If you're not using its "scan-build" tool, then start.  Right now.
 > Really.  It's that good.
 > 
 > Recently I've run it on a variety of packages, from coreutils
 > (of course) to libvirt -- and libxml2 on request by the maintainer.
 > 
 > To use them, build the tools described here, from source:
 > (currently, there is no fedora package, afaik)
 > 
 >   http://clang-analyzer.llvm.org/
 > 
 > I ran them like this for libxml2:
 > 
 >     scan-build -o clang ./autogen.sh
 >     scan-build -o clang make

This does look neat. When I tried it though, I ended up with ..

scan-build: Removing directory '/mnt/data/src/git-trees/kernel/linux-2.6/clang/2009-09-04-1' because it contains no reports.

While I'd love to believe the kernel is bug free, I have a hard time convincing
myself that clang is doing the right thing.

I added a path to the clang bin/ dir, and copied scan-build to my ~/bin
and then ran with 'make defconfig ; scan-build -o clang make bzImage'

Am I missing something obvious ?

	Dave