[Gluster-devel] Proposal: Using LLVM clang-analyzer in gluster development

[Kaleb S. KEITHLEY]

Hi,

We already are running nightly builds using both clang compile and clang 
analyze.

see http://download.gluster.org/pub/gluster/glusterfs/static-analysis/


On 05/26/2015 08:00 AM, Prasanna Kalever wrote:
> Hi gluster team,
>
> Proposal:
>
> Using Clang static analyzer tool for gluster project
>
>
> About Clang:
>
>  From a very high level view, Clang has two features
>
> 1. Clang as a compiler
> 2. Clang as a code analyzer
>
> The Idea hear is to use second point i.e Clang as code analyzer and still gcc
> will be our default compiler.
>
> The Clang Static Analyzer is a source code analysis tool that finds bugs in C,
> C++, and Objective-C programs. Given the exact same code base, clang-analyzer
> reported ~70 potential issues. clang is an awesome and free tool.
>
> The reports from clang-analyzer are in HTML and there's a single file for each
> issue and it generates a nice looking source code with embedded comments about
> which flow that was followed all the way down to the problem.
>
>
> Why Clang-Analyzer: (Advantages)
>
>   1. Since its is an open source tool:
>
>    * Available to all the developers
>    * Easy Access, we can run the tool while we compile the code (say $ scan-build make)
>    * No restrictions on Number of Runs per week/day/hour/min ..
>    * Defects are Identified before submitting a patch, thus very less chance of
>      defect injection into project
>
>   2. The Html view of clang is very impressive with all the source code including
>      comments of clang-analyzer, which lead to defect line number directly .
>
>
>
> I have attached a sample clang results for geo-replication module run on latest
> 3.7+ glusterfs code, please find them above.
>
>
> Thanks for your time.
>
>
> Best Regards,
> Prasanna Kumar K.
>
>
>
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-- 

Kaleb