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## 10 `gcov`—a Test Coverage Program

`gcov` is a tool you can use in conjunction with GCC to test code coverage in your programs.

• Gcov Intro |  | Introduction to gcov.
• Invoking Gcov |  | How to use gcov.
• Gcov and Optimization |  | Using gcov with GCC optimization.
• Gcov Data Files |  | The files used by gcov.
• Cross-profiling |  | Data file relocation.
• Freestanding Environments |  | How to use profiling and test coverage in freestanding environments.