Custom lib.so file for use in L-Procedure

Hi Colleagues.

We created custom lib.so file to be used in the L-Procedure we developing for internal POC project.

We copy libSODgrc.so library to the /usr/sap/<SID>/HDB<xx>/exe location on our HANA Server andtry to run following in HNA Studio

   CREATE AFL AREA GRCFNDAREA;

Statement 'CREATE AFLAREA GRCFNDAREA' successfully executed in 7 ms 639 µs 

(server processing time: 5 ms 987 µs) - Rows Affected: 0 Duration of 3 statements: 33 ms

CREATE AFL PACKAGE GRCFND FILE 'libSODgrc'IN GRCFNDAREA

Could not execute 'CREATE AFL PACKAGE GRCFND FILE ' libSODgrc ' IN GRCFNDAREA' in 610 ms 849 µs .

  SAP DBTech JDBC: [444]: package manager error: neither address of Co_IntrospectObject nor address of IntrospectAFL found

Did same one had similar situation before? Do we need add any reference to AFL objects to our code for libSODgrc.so to make it compatible with AFL?

Thank you,

Viktor.