dynamic-instrumentation

Dynamic binary instrumentation injects analysis callbacks into binary execution to capture dynamic instruction, memory, and control-flow events while the program runs. It helps understand runtime behavior when source code is missing or incomplete.

You can collect coverage feedback for fuzzers by applying LLVM-based runtime instrumentation and sanitizer coverage-style collection at the IR level. This captures execution paths to guide fuzzing inputs toward uncovered code regions.

Yes, dynamic instrumentation enables runtime tracing and syscall monitoring by injecting callbacks directly into binary execution. This allows you to verify behavior and monitor memory reads or writes in production-like conditions without source code.

The best way to instrument opaque binaries is using a DBI framework or LLVM IR passes to inject deterministic callbacks. This captures control-flow events and validates runtime behavior for security research and debugging tasks.

Yes, the instrumentation strategy supports XRay-style patch and unpatch tracing, block frequency profiling, and eBPF coverage collection concepts. It applies across platforms for runtime performance and security monitoring.

LLVM IR passes require an LLVM-aligned instrumentation strategy and access to target binaries for IR-level insertion. While effective for tracing and profiling, they may introduce overhead that requires event filtering and low-overhead logging patterns to manage.