A debug tool that generates a call stack listing by analyzing the crash memory dump data without relying on register data values. The tool uses information gathered by the compiler and linker when the program was compiled and linked, including the stack's size and location in memory. By examining the stack location in the crash memory dump image in conjunction with the debugging data generated by the compiler and the linker and any existing trace data, the last valid frame may be reconstructed indicating the location of the crash.