----- Original Message ----- > From: "Mr. Clif" <c...@eugeneweb.com> > To: "Linux Tools developer discussions" <linuxtools-dev@eclipse.org> > Sent: Friday, March 21, 2014 8:03:39 PM > Subject: Re: [linuxtools-dev] gcov results aggregation > > So now that I've familiarized myself with lcov and genhtml, I see they > do exactly what I was trying to describe below. ;-) I'm wondering if > anyone knows of a way to combine the output of several lcov style > tracefiles together to be viewed in the eclipse profile window?
I see that lcov has a way to combine tracefiles : https://wiki.documentfoundation.org/Development/Lcov#Combine_lcov_tracefiles I don't think we currently support lcov tracefiles (assuming they're different from the gcno/gcda format) but I suppose this could be a feature request to combine the original gcno/gcda files and display that for users. > On 03/19/2014 02:33 PM, Mr. Clif wrote: > > Hello, > > > > I've been playing with unit testing (using Google test) and gcov lately. > > Like many others I have a little routine that uses ifdef macros to > > compile in different features some of which are mutually exclusive. > > This means that for the unit tests I have several object directories, > > one for each combination of features that I think are important to > > test together. Though since it's all the same program I felt the need > > to find a way to aggregate the unit test results into one continuous > > output stream from all these different binaries (generated from the > > same source file) that I'm running. So I wrote a little script to pass > > the results up to the eclipse unit test plugin and that all works just > > fine. > > > > Now I want to do something simular for checking the code coverage of > > all my unit tests. I suppose the usual way would be to run one unit > > test at a time and look at the coverage output, but as above, I would > > like eclipse to aggregate it all together to save me time, and the > > possibility of accidentally missing something. If the profile feature > > accually used the gcov binary output then I could merge all of the > > execution counts from the resulting .gcov file together for the same > > source file, which is what I would like. However it seems (as I've > > read elsewhere) that gcov is not called and you parse the .gcno and > > .gcda files yourselves. > > > > So I'm wondering what the conventional best practice is here, or if > > there is a provision for test data aggregation in eclipse. It should be possible to do this as I'm pretty sure our Gcov plugin already aggregates the results per execution. I know we've wanted to allow users to choose between whether gcov aggregates or generates new record files each time so perhaps we could add a feature for this. Cheers, -- Roland Grunberg _______________________________________________ linuxtools-dev mailing list linuxtools-dev@eclipse.org https://dev.eclipse.org/mailman/listinfo/linuxtools-dev
