Debugging with GDB Manual The GNU Source-Level Debugger (769148-001, March 2014)

Annotations We Might Want in the Future
target-invalid
the target might have changed (registers, heap contents, or execution status). For performance,
we might eventually want to hit registers-invalid and all-registers-invalid
with greater precision
systematic annotation for set/show parameters (including invalidation notices).
similarly, `info' returns a list of candidates for invalidation notices.
232 GDB Annotations