如何告诉lcov在哪里可以找到我的.cpp＆.h文件？

Question

我的源和构建树是这个样子（见Makefile to put object files from source files different directories into a single, separate directory?）一个make（其中构建并运行FooAndBarTests）后：

src 
- Foo.cpp 
- Bar.cpp 
inc 
- Foo.h 
- Bar.h 
test 
- FooTest.cpp 
- BarTest.cpp 
- Main.cpp 
- Makefile 
- obj 
    - Foo.gcda 
    - Foo.gcno 
    - Bar.gcda 
    - Bar.gcno 
- FooAndBarTests 
UnitTest++ 
- libUnitTest++.a 
- src 
    - ... 

然后我就可以通过运行gcov -o obj/ ../src/Foo.cpp和gcov -o obj/ ../src/Bar.cpp产生.gcov测试目录中的文件。

但是，如果我跑lcov -d obj/ -c -o FooAndBarTests.lcov我得到：

Capturing coverage data from obj/ 
Found gcov version: 4.2.1 
Scanning obj/ for .gcda files ... 
Found 4 data files in obj/ 
Processing Foo.gcda 
../src/Foo.cpp:cannot open source file 
Processing FooTest.gcda 
FooTest.cpp:cannot open source file 
../inc/Foo.h:cannot open source file 
../UnitTest++/src/Checks.h:cannot open source file 
... 

，然后当我运行genhtml FooAndBarTests.lcov我得到：

Reading data file FooAndBarTests.lcov 
Found 45 entries. 
Found common filename prefix "/Users/dspitzer/FooAndBar/test" 
Writing .css and .png files. 
Generating output. 
Processing file UnitTest++/src/Checks.h 
genhtml: ERROR: cannot open /Users/dspitzer/FooAndBar/test/UnitTest++/src/Checks.h for reading! 

我如何告诉LCOV和GENHTML其中的.cpp和.h文件是？

Answer 1

将-b选项用于lcov。 -b选项指定代码库。