The path to exascale computing will challenge HPC application developers in their quest to achieve the maximum potential that the machines have to offer. Factors such as limited power budgets, clock frequency variability, heterogeneous load imbalance, hierarchical memories, and shrinking I/O bandwidths will make it increasingly difficult to create high-performance applications. Tools for debugging, performance measurement and analysis, and tuning will be needed to overcome the architectural, system, and programming complexities envisioned in exascale environments. At the same time, research and development progress for HPC tools faces equally difficult challenges from exascale factors. Increased emphasis on autotuning, dynamic monitoring and adaptation, heterogeneous analysis, and so on will require new methodologies, techniques, and engagement with application teams. This workshop will serve as a forum for HPC application developers, system designers, and tools researchers to discuss the requirements for exascale-enabled tools and the roadblocks that need to be addressed. The workshop is the fifth in a series of SC conference workshops organized by the Virtual Institute - High Productivity Supercomputing (VI-HPS), an international initiative of HPC researchers and developers focused on parallel programming and performance tools for large-scale systems. The workshop includes a keynote address, peer-reviewed technical papers, and a lively panel session.