PROBLEM TO BE SOLVED: To provide a debug support system, a debug support method and a recording medium therefor that can refer to concurrent OS management information at the time when an application developed in a simulation environment on an OS simulator stopped even if that has happened. SOLUTION: The debug support system, the debug support method and the recording medium therefor provided with a shared file shared by the application and an OS debugger and storing shared management information containing the same data as item data constituting OS management information, a writing means for writing given item data on the OS management information stored in a storing means into the shared file as the shared management information, and a reading means for reading out the shared management information stored in the shared file, are provided.
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