clang and scanbuild

[Dimitry Andric]

On 11 Feb 2015, at 22:17, Craig Rodrigues <rodrigc at FreeBSD.org> wrote:
> 
> We currently have a Jenkins job which checks out llvm trunk and builds
> it like this:
> 
> svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm
> cd llvm
> ./configure --enable-optimized --disable-assertions --disable-docs
> --enable-targets=host \
>    --with-c-include-dirs=${WORKDIR}/obj${WORKDIR}/src/tmp/usr/include \
>    --with-cxx-include-root=${WORKDIR}/obj${WORKDIR}/src/tmp/usr/include
> 
> gmake -j4
> 
> cp -p ./tools/clang/tools/scan-build/scan-build \
>      ./tools/clang/tools/scan-build/scanview.css \
>      ./tools/clang/tools/scan-build/sorttable.js \
>      Release/bin
> 
> cp -p ./tools/clang/tools/scan-build/ccc-analyzer \
>      ./tools/clang/tools/scan-build/c++-analyzer \
>      Release/bin
> 
> We then do this to invoke scan-build over the FreeBSD tree:
> 
> /usr/bin/time -l \
>    env CCC_ANALYZER_CHECKER_DEADCODE=0 \
>    ${SCAN_BUILD} \
>        --use-cc ${OBJ}${SRCDIR}/tmp/usr/bin/cc \
>        --use-c++ ${OBJ}${SRCDIR}/tmp/usr/bin/c++ \
>        -k -o $output make ${JFLAG} $MYFLAGS \
>        CROSS_COMPILER_PREFIX=${OBJ}${SRCDIR}/tmp/usr/bin/ "$@"
> 
> 
> We can continue to do this, but I was wondering if:
>   (1)  is there a FreeBSD port which has this stuff?

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.

-Dimitry

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