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

[Peter Oberparleiter]

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

More information on lcov can be found on the page behind the second URL
your quoted in your mail.


Regards,
  Peter Oberparleiter

-- 
Peter Oberparleiter
Linux on System z Development - IBM Germany

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/