AuthXDC Visibility Like No Other
Debug Authorized Code Without Compromise

AuthXDC eliminates these barriers by extending Z/XDC's interactive debugging capabilities into authorized and constrained environments—giving you complete visibility without compromising security or stability.
See Inside Critical Code.
Invisibility in Critical Environments. Traditional debugging tools can't follow execution into authorized code, SVC routines, or cross-memory environments. When your program enters these spaces, you lose visibility exactly when you need it most, leaving you to guess what's happening inside critical system-level code.
Faster Authorized Code Debugging.
Time-Consuming Workarounds. Without proper tools, debugging authorized code means adding trace statements, recompiling system modules, analyzing obscure dumps, and hoping you can reproduce issues in test environments. What should take hours stretches into days or weeks.
Stability Starts with Visibility.
Risk & Complexity. Authorized code operates at the highest privilege levels, mistakes can destabilize entire systems. Without interactive debugging, you're making changes blind, increasing the risk of introducing new problems while trying to fix existing ones.
Application Engineers
Your Challenge: You write software that either runs on the mainframe or must interface with the mainframe to access its data or leverage its services. Your code must work flawlessly in authorized environments across diverse hybrid configurations. Bugs in complex environments are costly and damage reputation.
How AuthXDC Helps:
- Test authorized code paths thoroughly in realistic environments
- Reproduce and diagnose customer-reported issues quickly
- Verify correct operation across execution key transitions
- Debug cross-memory interactions that occur only in production-like scenarios
- Ensure proper FRR handling and recovery behavior
Your Outcome: Ship higher-quality system software with fewer authorized-code defects. Resolve customer issues rapidly without extensive back-and-forth. Build confidence in your product's reliability at the system level.
Real-World Impact: "AuthXDC reduced our average time to resolve customer-reported authorized code issues from 5 days to less than 1 day." — Senior Developer, Enterprise Systems Software
Systems Programmers
Your Challenge: You build and maintain system-level software - security managers, storage managers, transaction coordinators, and infrastructure components. Your code runs authorized, operates in supervisor state, and crosses address space boundaries. Traditional debugging tools leave you blind exactly when you need visibility most.
How AuthXDC Helps:
- Debug APF-authorized programs interactively without losing context
- Step through supervisor state routines while examining system control blocks
- Follow cross-memory flows to understand multi-address-space interactions
- Debug SVC and PC routines while seeing both caller and handler contexts
- Investigate FRR-protected code and recovery logic together
Your Outcome: Resolve system-level issues in hours instead of days. Ship infrastructure updates with confidence. Reduce production incidents through thorough pre-deployment testing.
With AuthXDC, there are no debugging dead zones. Follow your program's execution path wherever it leads - from problem state through authorized code, across address spaces, into supervisor state, and back - all within a single, continuous debugging session.
AuthXDC is NOT a standalone product. It's an optional feature extension that activates additional capabilities within Z/XDC.

Optional Add-on license
When you license AuthXDC, it unlocks authorized debugging capabilities within your existing Z/XDC environment. No separate installation, no different interface—just extended capabilities when debugging authorized code.
Ready to Debug Smarter?
Join hundreds of organizations who trust the XDC Suite for their mission-critical mainframe development.

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