Availability:built-in
prolog_debug(+Topic)
prolog_nodebug(+Topic)Enable/disable a debug topic. Topic is an atom that
identifies the desired topic. The available topics are defined in
src/pl-debug.h. Please search the sources to find out what
is actually printed and when. We highlight one topic here:
- chk_secure(A)
- dd many expensive consistency checks to the system. This should
typically be used when the system crashes, notably in the garbage
collector. Garbage collection crashes are in most cases caused by
invalid data on the Prolog stacks. This debug topic may help locating
how the invalid data was created.
These predicates require the system to be compiled for debugging
using
cmake -DCMAKE_BUILD_TYPE=Debug.