Best Debugging Tools

Z/XDC gives developers interactive, source-level debugging for mainframe programs across any z/OS environment, helping them step through live code, inspect variables in real time, and resolve issues faster than traditional methods. It eliminates blind debugging by providing complete, real-time visibility into program execution and bringing modern debugging capabilities to mainframe development. Developers can dramatically reduce debugging time from days to hours, test theories immediately without lengthy recompile cycles, make ad hoc changes, perform “what if” scenarios, fix issues, and verify corrections without recompiling. Z/XDC supports line-by-line code stepping, on-the-fly code changes, flag flipping, data field and register modification, PSW control, module loading and deletion, GETMAINs and FREEMAINs, and Event Control Block posting. It provides source-level visibility so developers can view code as written, automatically load source image maps from ADATA, and more.