search for: xrayafunctioncalltracingsystem

...tem called XRay which inserts patchable instrumentation points into function entries and exits. If the community is interested, we'd like to contribute this system to the LLVM project. Many more details are contained in the whitepaper at: https://storage.googleapis.com/xray-downloads/whitepaper/XRayAFunctionCallTracingSystem.pdf Who's "we": dberris at google.com, echristo at google.com Overview At Google we use XRay to build binaries that have "nop sleds" at function call entry and exits that we can patch at runtime to insert instrumentation calls. We use this to generate sufficiently accurat...