c-使用lcov的源文件的代码覆盖率

Question

我正在使用lcov和genhtml生成代码覆盖率报告。使用以下目录结构，我可以获得tests/目录中源文件的代码覆盖率，但无法获得src/目录中my_file.c文件的代码涵盖率。

src/
   my_file.c
   my_file.h
tests/
   AllTests.c
   CuTest.c
   CuTest.h
   my_file_tests.c
   objects/
       AllTests.gcda
       AllTests.gcno
       AllTests.o
       CuTest.gcda
       CuTest.gcno
       CuTest.o
       my_file.gcda
       my_file.gcno
       my_file.o
       my_file_tests.gcda
       my_file_tests.gcno
       my_file_tests.o

从测试目录调用lcov命令：

lcov -b . --directory objects/ -c -o ./coverage/app.info

Capturing coverage data from objects/
Found gcov version: 4.4.3
Scanning objects/ for .gcda files ...
Found 4 data files in objects/
Processing objects/AllTests.gcda
Processing objects/my_file_test.gcda
Processing objects/CuTest.gcda
Processing objects/my_file.gcda
geninfo: WARNING: gcov did not create any files for /home/me/workspace/project/tests/objects/my_file.gcda!
Finished .info-file creation

Answer 1

从lcov 1.7升级到1.9为我修复了这个问题。1.9版本可从http://ltp.sourceforge.net/coverage/lcov.php