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在此处运行 gcovr 的设置示例：https ://gcovr.com/en/stable/guide.html#getting-started我可以构建文件并从运行中看到以下输出gcovr -r .：

 % gcovr -r .          
------------------------------------------------------------------------------
                           GCC Code Coverage Report
Directory: .
------------------------------------------------------------------------------
File                                       Lines    Exec  Cover   Missing
------------------------------------------------------------------------------
example.cpp                                    0       0    --%   
------------------------------------------------------------------------------
TOTAL                                          0       0    --%
------------------------------------------------------------------------------

如果我gcov example.cpp直接运行，我可以看到生成的 .gcov 数据是正确的：

% gcov example.cpp   
File 'example.cpp'
Lines executed:87.50% of 8
Creating 'example.cpp.gcov'

我不确定这个 gcov 输出和它的 gcovr 解释之间的脱节在哪里。

我尝试降级到较旧的 gcovr 版本，在其他项目上运行命令，并切换 python 版本，但没有看到任何不同的行为。

我的 gcov 和 gcc 来自 Xcode 命令行工具。gcovr 已安装 pip（在带有 python 3.8.5 的 pyenv 中）

编辑：添加详细输出：

gcovr -r . -v
Filters for --root: (1)
- re.compile('^/Test/')
Filters for --filter: (1)
- DirectoryPrefixFilter(/Test/)
Filters for --exclude: (0)
Filters for --gcov-filter: (1)
- AlwaysMatchFilter()
Filters for --gcov-exclude: (0)
Filters for --exclude-directories: (0)
Scanning directory . for gcda/gcno files...
Found 2 files (and will process 1)
Pool started with 1 threads
Processing file: /Test/example.gcda
Running gcov: 'gcov /Test/example.gcda --branch-counts --branch-probabilities --preserve-paths --object-directory /Test' in '/var/folders/bc/20q4mkss6457skh36yzgm2bw0000gp/T/tmpo4mr2wh4'
Finding source file corresponding to a gcov data file
  currdir      /Test
  gcov_fname   /var/folders/bc/20q4mkss6457skh36yzgm2bw0000gp/T/tmpo4mr2wh4/example.cpp.gcov
               ['        -', '    0', 'Source', 'example.cpp\n']
  source_fname /Test/example.gcda
  root         /Test
  fname        /Test/example.cpp
Parsing coverage data for file /Test/example.cpp
Gathered coveraged data for 1 files
------------------------------------------------------------------------------
                           GCC Code Coverage Report
Directory: .
------------------------------------------------------------------------------
File                                       Lines    Exec  Cover   Missing
------------------------------------------------------------------------------
example.cpp                                    0       0    --%   
------------------------------------------------------------------------------
TOTAL                                          0       0    --%
------------------------------------------------------------------------------
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