Explore DWARF extensions for optimized SIMT/SIMD (GPU) debugging in this 27-minute conference talk from the Linux Plumbers Conference. Delve into the AMD Open Source Debugging Tools Project and examine the challenges of heterogeneous computing debugging. Analyze the limitations of existing DWARF 5 and learn about DWARF expressions, variable locations in registers and memory, and the concept of locations. Discover new stack location operations and address space extensions. Gain insights into generalizing locations on the stack and review a summary of extension operations to enhance GPU debugging capabilities.