Debugperl provides a debug-enabled version of Perl which can produce extensive information about the interpreter as it compiles and executes a program (see the -D switch in perlrun(1)).

Note that this package is primarily of use in debugging *Perl* rather than perl programs, which may be traced/debugged using the standard perl binary using the -d switch (see perldebug(1)).

In addition, this package also includes debugging information for the normal Perl interpreter.