Fix warnings from generated asn1 code in order to build osmo-iuh with
werror in a future patch:
../../include/osmocom/hnbap/HNBAP_CriticalityDiagnostics-IE-List.h:29:23: error: ‘struct HNBAP_CriticalityDiagnostics_IE_List__Member’ declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
These visibility warnings come from "SEQUENCE … OF SEQUENCE" definitions
in the asn1 source files, as described in detail here:
https://github.com/vlm/asn1c/issues/430
It is not possible to tell gcc to just ignore these warnings since they
don't have their own type (unlike e.g. -Wuninitialized). Also it seems
like a huge effort to patch this in asn1c.
So work around the problem the same way the author of the issue worked
around it by rewriting the lines to "SEQUENCE … OF …-Value" and adding
a "…-Value ::= SEQUENCE" line below. Add a script in
asn1/utils/asn1_restructure_sequence_of_sequence.py for the
transformation and apply it.
Related: OS#4462
Change-Id: If84445ed2e0df604b581684dcf83f8520b7da84c
This is not development, it is random trial and error hacking. I really
hate the fact that we have no useful asn.1 code generator and need to
work with hacks like asn1tostruct.py and asn1c without information
object classes :/
This commit is a one-day-long iteration of trial+error, manually editing
and adding the .asn source of RANAP until we get something that in the
end at least compiles and links. Do I trust the resulting code? No.
But we have no alternative :(
As asn1c cannot understand information object classes, we cannot compile
RANAP-PDU-Contents.asn but instead need to manually add the respective
infrmation elements to RANAP-PDU.asn.
It seems that individual IEs contain nested containers, and
asn1c is not generating code for that unless we help it by some
hand-crafted additional definitions. *sigh*
If we avoid using Information Object Classes in the IE definitions
(which are only used for Extension Containers), then we can compile the
ASN.1 source using Lev Walkin's asn1c.
Oliver Smith
Harald Welte