Trivial backtrace is a simple platform independent interface for generating a backtrace. Much of the code is borrowed from the innards of Hunchentoot.

More details can be found on its home page at

ASDF-install package (obsolete)

Personal opinion: trivial-backtrace had its time, but uiop/image provides more portable, more robust, more featureful, more widely used functionality, and is already part of your implementation-provided asdf 3. Use uiop instead. — Fare Rideau