[emk@ekdev2 IO]$ pwd
/tmp/par-656d6b/cache-08da00fae2ebdaf6d8f69a0988dac72d0e1f3d62/inc/lib/auto/IO
[emk@ekdev2 IO]$ nm -g IO.so 
                 U PerlIO_getpos
                 U PerlIO_setpos
                 U PerlIO_tmpfile
                 U PerlIO_ungetc
                 U Perl_Isv_undef_ptr
                 U Perl_Isv_yes_ptr
                 U Perl_PerlIO_clearerr
                 U Perl_PerlIO_error
                 U Perl_PerlIO_fileno
                 U Perl_PerlIO_flush
...
0000000000001760 T boot_IO
                 U fcntl@@GLIBC_2.2.5
                 U fsync@@GLIBC_2.2.5
                 U poll@@GLIBC_2.2.5
                 U sockatmark@@GLIBC_2.2.5