In some platforms there may be arbitrary amount of padding, for
example space characters, after the modified name as shown by C<ps>.
In some platforms this padding may extend all the way to the original
-length of the argument area, no matter what you do.
+length of the argument area, no matter what you do (this is the case
+for example with Linux 2.2).
Note for BSD users: setting C<$0> does not completely remove "perl"
from the ps(1) output. For example, setting C<$0> to C<"foobar"> may
Provide informative names to anonymous subroutines based on the place they
were compiled.
+=item 0x400
+
+Debug assertion subroutines enter/exit.
+
=back
Some bits may be relevant at compile-time only, some at