A method, system, and computer program product for operating system (OS) aided code coverage are provided. The method includes reading context information associated with a software process in response to a context switching event in an OS, the OS initiating the reading of the context information and controlling scheduling of the software process. The method further includes determining coverage information for code implementing the software process as a function of the context information in response to the OS reading the context information, and storing the coverage information as coverage data.