最近在做cppunit test相关工作,用gcov和lcov工具来查看每行代码的覆盖率,个人感觉lcov真棒,看起来很舒服,点起来也很爽!~~
闲聊至此,如题:
我使用的是lcov的 --remove命令
Remove / filter out remaining unwanted stuff from
tracefile
Now we can remove the (remaining) stuff that we aren‘t interested in from the
tracefile.
lcov --remove /tmp/libreoffice_total.info ‘/usr/include/*‘ ‘/usr/lib/*‘ ‘/usr/local/src/libreoffice/*/UnpackedTarball/*‘ ‘/usr/local/src/libreoffice/workdir/*‘ ‘/usr/local/src/libreoffice/instdir/*‘ ‘/usr/local/src/libreoffice/external/*‘ -o /tmp/libreoffice_filtered.info
/usr/include/*和/usr/lib/*这两个路径加上就可以过滤掉那些系统函数的覆盖信息了(iostream等),如果想过滤其他路径,那就自己加吧!~~
PS: 手册中说--extract命令貌似也可以,不过我没试。
-e tracefile pattern
--extract tracefile pattern
Extract data from tracefile.Use this switch if you want to extract coverage data for only a
particular set of files from a tracefile. Additional command
line parameters will be interpreted as shell wildcard patterns
(note that they may need to be escaped accordingly to prevent
the shell from expanding them first). Every file entry in
tracefile which matches at least one of those patterns will be
extracted.
参考链接:https://wiki.documentfoundation.org/Development/Lcov#patch_.27geninfo.27
lcov manual:http://ltp.sourceforge.net/coverage/lcov/lcov.1.php