我的源代码和构建目录如下(参见Makefile to put object files from source files different directories into a single, separate directory?),经过make编译和运行FooAndBarTests之后:
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,我可以运行gcov -o obj/ ../src/Foo.cpp
和gcov -o obj/ ../src/Bar.cpp
在测试目录下生成.gcov文件。
但如果我运行lcov -d obj/ -c -o FooAndBarTests.lcov
,会得到以下内容:
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
...
当我运行 genhtml FooAndBarTests.lcov
时,我会得到以下结果:
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!
我该如何告诉 lcov 和 genhtml .cpp 和 .h 文件在哪里?