Devel::Peek is probably what you're after. This will (from Perl) dump the addresses and flags of a module. Also see the refaddr method in Scalar::Util.

You could try wrapping the XS function in a Pure Perl method that uses the above to dump info on its arguments.

Here's an example of calling Devel::Peek::Dump from XS, which can be darned handy too:

        ENTER;
        SAVETMPS;
        PUSHMARK(sp);
        XPUSHs(sv);
        PUTBACK;
        perl_call_pv("Devel::Peek::Dump", G_SCALAR|G_DISCARD);
        FREETMPS;
        LEAVE;
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You'll also need dSP; at the beginning of your function to declare the sp variable; in the above, sv is the dumped variable.

$h=$ENV{HOME};my@q=split/\n\n/,`cat $h/.quotes`;$s="$h/."
."signature";$t=`cat $s`;print$t,"\n",$q[rand($#q)],"\n";
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