Wrong OSABI for GCC from Ports

I noticed that GCC and its associated libraries, when installed from pkg
on FreeBSD 14.1 AArch64, have an OS/ABI value of NONE (0) rather than
FreeBSD (9), as reported by readelf --file-header. I also observed this
when cross compiling GCC for FreeBSD 13.2 AArch64 on Alpine Linux; I
assumed it was an issue with the cross compilation setup until I realized
that the one from pkg exhibited the same thing. This does not seem to
occur with x86_64, neither from pkg nor cross compiled. Does anyone know
why this would happen and whether it could be addressed with a patch to
GCC? Apologies if this is already known and has been discussed somewhere.

Thanks!