Re: [LTP] How to get the Linux kernel coverage data on ARM arch when I run LTP test?

[Michal S. <mo...@mo...>]

HI,


2014-02-18 15:30 GMT+01:00 Naresh Kamboju <nar...@li...>:

> On 14 February 2014 15:13, Peter Oberparleiter
> <ob...@li...> wrote:
> > On 14.02.2014 10:02, Naresh Kamboju wrote:
> >> root@linaro-developer:/tmp/linux-linaro-3.13-2014.01# gcov
> kernel/gcov/base.c -o
> >>  /sys/kernel/debug/gcov/tmp/linux-linaro-3.13-2014.01/kernel/gcov/
> >> File 'kernel/gcov/base.c'
> >> Lines executed:43.18% of 44
> >> Creating 'base.c.gcov'
> >>
> >> root@linaro-developer:/tmp/linux-linaro-3.13-2014.01#
> >>
> >> The above experiment gives coverage of a single file base.c when i run
> >> gcov manually.
> >> Is there any way to get Linux kernel coverage of all files after
> >> running LTP test cases ?
> >
> > 1. Reset coverage data: lcov -z
> > 2. Run LTP (or any other test case)
> > 3. Capture coverage data: lcov -c -o coverage.info
> > 4. Generate HTML output: genhtml coverage.info -o out
> > 5. View HTML output: <browser> out/index.html
>
> It is working !!!
> LTP executed on linux-linaro build on vexpress-tc2 target.
> Please find results obtained
> http://people.linaro.org/~naresh.kamboju/linux-linaro-coverage-by-ltp/
>
> The plan is to run all linaro test suite and to get coverage date.


Have you already run it? Are these test cases available?

Thanks,
Michal