[cfe-dev] scan-build on Windows

Siddharth Shankar Swain via cfe-dev cfe-dev at lists.llvm.org
Tue Apr 9 23:40:50 PDT 2019


Hi Artem,

Couple of points to note here :-

There are two things we are trying to do :-

1) Trying to run scan-build on Windows
2) Running scan-build in linux and generating HTML reports in report
directory

*We are just trying to run scan-build with normal makefile which compiles
and analyzes one test case.*

The problem in the first case is that when i run the normal scan-build with
build command like this :-

C:\Users\sid>perl -S scan-build -o out-dir make

scan-build: Not supported for windows. Exiting...


For the second case our aim is to just run scan-build with build command
for one test case file which will be analyzed and reports will be generated
in the reports directory

sid at sid-linux:
/local/mnt/workspace/llvm/tools/clang/tools/scan-build/bin/scan-build
--use-analyzer=/local/mnt/workspace/llvm/build/bin/clang make
scan-build: Using ' /local/mnt/workspace/llvm/build/bin/clang' for static
analysis
/local/mnt/workspace/llvm/build/bin/../libexec/ccc-analyzer -o test1 test1.c
test1.c:6:9: clang_sa_warning: Value stored to 'k' during its
initialization is never read [deadcode.DeadStores]
    int k = *j;
        ^   ~~
test1.c:6:13: clang_sa_warning: Dereference of null pointer (loaded from
variable 'j') [core.NullDereference]
    int k = *j;
            ^~
2 warnings generated.
scan-build: Removing directory '/tmp/scan-build-2019-04-10-115314-8475-1'
because it contains no reports.
scan-build: No bugs found.


It shows bugs in the cmd but doesn't generate HTML reports. What can be the
possible cause of it ? ( Note here the clang is the latest version) Is
there any dependency from scan-build side that it will work with a
particular version of clang ?


Thanks,

Siddharth


On Wed, Apr 10, 2019 at 6:40 AM Artem Dergachev <noqnoqneo at gmail.com> wrote:

> +Aaron because i think he uses scan-build on Windows more or less
> successfully. I won't have time for setting up a Windows machine for
> myself in the nearest future.
>
> Could you tell us exactly what you're doing and what exactly does it
> print to console, more in the spirit of
> http://www.catb.org/~esr/faqs/smart-questions.html ?
>
>  > scan-build: Not supported for windows. Exiting...
>
> Hmm, i don't see such string in the source code of scan-build, neither
> it looks like a standard Perl message.
>
>  >  don't install clang and related tools like scan-build in /usr/bin i
> am not able to generate reports ( HTML files )
>
> Could you provide the exact command and its exact output? Normally you
> don't care where is everything installed because you simply provide the
> path to the analyzer with `--use-analyzer`.
>
>
> On 4/8/19 12:26 PM, Siddharth Shankar Swain wrote:
> > Hi Artem, Laszlo,
> >
> > There are couple of problems with scan-build :-
> >
> > 1) For Windows i get the following error while running scan-build - "
> >
> > “scan-build: Not supported for windows. Exiting...”:
> >
> > 2) For Linux Also if i don't install clang and related tools like
> > scan-build in /usr/bin i am not able to generate reports ( HTML files
> > ). Like i get the clang_sa_warnings in cmd but scan-build removes the
> > directory saying no bugs found.
> >
> > Note - I already set the CC and CXX  flags to the clang compiler
> >
> > Please let me know if there is any other changes i need to make in the
> > env variable.
> >
> > Thanks,
> > Siddharth
> >
> >
> >
> > On Sat, Apr 6, 2019 at 5:28 AM Laszlo Nagy
> > <rizsotto.mailinglist at gmail.com
> > <mailto:rizsotto.mailinglist at gmail.com>> wrote:
> >
> >     Hi Siddharth,
> >
> >     alternativly you can try this
> >     <https://github.com/rizsotto/scan-build>, it's written in Python.
> >
> >     Regards,
> >     Laszlo
> >
> >     On Sat, Apr 6, 2019 at 5:14 AM Artem Dergachev via cfe-dev
> >     <cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>> wrote:
> >
> >         Hi,
> >
> >         I never tried it myself but i can try to help you with
> >         specific problems
> >         that you're having if you disclose them.
> >
> >         scan-build is a Perl script, it most likely requires having
> >         Perl and a
> >         few Perl modules installed and that's it.
> >
> >         On 4/5/19 4:25 AM, Siddharth Shankar Swain via cfe-dev wrote:
> >         > Hi all,
> >         >
> >         > Can anyone help in installing and running "scan-build" on
> >         Windows ?
> >         >
> >         > Thanks,
> >         > Siddharth
> >         >
> >         > _______________________________________________
> >         > cfe-dev mailing list
> >         > cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>
> >         > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
> >
> >         _______________________________________________
> >         cfe-dev mailing list
> >         cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>
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> >
>
>
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