A core dump is a file containing detailed information about the state of an application at the time it crashed. It can be used to debug segmentation faults, which occur when a program tries to access memory that it doesn’t have permission to.
To use a core dump for debugging, first ensure your system is configured to generate core dumps. This can usually be done by setting the ‘ulimit’ command in Unix-based systems.
Once you have a core dump, you can analyze it using a debugger such as gdb. Load the core dump into gdb along with the executable that generated it. The ‘bt’ (backtrace) command will show the call stack at the time of the crash, helping identify where the fault occurred.
Remember, core dumps contain sensitive data and should be handled securely.
