From mboxrd@z Thu Jan 1 00:00:00 1970 From: oberpar@linux.vnet.ibm.com (Peter Oberparleiter) Date: Fri, 14 Feb 2014 10:43:06 +0100 Subject: [LTP] How to get the Linux kernel coverage data on ARM arch when I run LTP test? In-Reply-To: References: Message-ID: <52FDE52A.4070002@linux.vnet.ibm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: 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