To enable coverage support you will need to install the utility Gcovr. Gcovr will analize the output from GNU Gcov and create a Cobertura compatible XML file to be consumed by the Jenkins Cobertura plugin.
To install gcovr type the following command:
$ sudo easy_install gcovr
To enable GNU Gcov support in your programs, you need to enable coverage support by adding the following CFLAGS to our build:
- In GCC
CFLAGS += -O0 --coverage
LDFLAGS += -lgcov
- In LLVM Clang
CFLAGS += -O0 -fprofile-arcs -ftest-coverage
Once you have built your programs using the new flags, running the program will enable GNU Gcov to generate two files, one ending with *.gcda and another ending in *.gcno. These files will be analyzed by gcovr to create the Corbertura XML files using the following command:
$ gcovr -r . --xml -o coverage.xml
Gcovr has many more options. Please visit their page at gcovr.com