On 14 February 2014 15:13, Peter Oberparleiter
[off-list ref] wrote:

On 14.02.2014 10:02, Naresh Kamboju wrote:

quoted

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.

Peter Oberparleiter,
Thank you very much for your help.

Best regards
Naresh Kamboju

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