+Perl_custom_op_name
+Perl_custom_op_desc
+Perl_sharedsv_init
+Perl_sharedsv_new
+Perl_sharedsv_find
+Perl_sharedsv_lock
+Perl_sharedsv_unlock
+Perl_sharedsv_thrcnt_inc
+Perl_sharedsv_thrcnt_dec
+Perl_sv_setsv_flags
+Perl_sv_catpvn_flags
+Perl_sv_catsv_flags
+Perl_sv_utf8_upgrade_flags
+Perl_sv_pvn_force_flags
+Perl_sv_2pv_flags
+Perl_my_atof2