I have tried only libperl and still the same.

When I run nm on my output shared library - there is not a lot of symbols expose by libperl:

                 U perl_alloc
                 U perl_construct
                 U perl_destruct
                 U perl_free
                 U perl_parse
000000000022f748 b my_perl
                 U Perl_call_method
                 U Perl_call_pv
                 U Perl_eval_pv
                 U Perl_free_tmps
                 U Perl_gv_add_by_type
                 U Perl_hv_clear
                 U Perl_hv_common_key_len
                 U Perl_hv_undef_flags
                 U Perl_markstack_grow
                 U Perl_newRV
                 U Perl_newRV_noinc
                 U Perl_newSViv
                 U Perl_newSVpv
                 U Perl_newSVsv
                 U Perl_newSV_type
                 U Perl_newXS
                 U Perl_pop_scope
                 U Perl_push_scope
                 U Perl_save_int
                 U Perl_stack_grow
                 U Perl_sv_2bool_flags
                 U Perl_sv_2mortal
                 U Perl_sv_2pv_flags