我怎么告诉lcov在哪里可以找到我的.cpp＆amp; .h文件？

Question

我的源代码和构建树在make之后看起来像这样（参见Makefile to put object files from source files different directories into a single, separate directory?）（构建并运行FooAndBarTests）：

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
  - ...

然后我可以通过运行gcov -o obj/ ../src/Foo.cpp和gcov -o obj/ ../src/Bar.cpp在测试目录中生成.gcov文件。

但如果我跑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
...

然后当我跑genhtml FooAndBarTests.lcov时，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!

如何告诉lcov和genhtml .cpp和.h文件在哪里？

Answer 1

使用-b选项lcov。 -b选项指定代码库。