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

[Naresh Kamboju]

On 3 March 2014 20:51, Michal Simek <monstr at monstr.eu> wrote:
> HI,
>
>
> 2014-02-18 15:30 GMT+01:00 Naresh Kamboju <naresh.kamboju at linaro.org>:
>
>> On 14 February 2014 15:13, Peter Oberparleiter
>> <oberpar at linux.vnet.ibm.com> wrote:
>> > On 14.02.2014 10:02, Naresh Kamboju wrote:
>> >> root at 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 at 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?


I have tested LTP on vexpress-tc2. I did not try all test suites.
We ( In Linaro) Linaro Test Suites is a package that contains test
suites that can be run in LAVA.
http://releases.linaro.org/14.03/components/platform/linaro-test-suites

>
> Thanks,
> Michal
>