kern/57745: compat_16 module kobj_checksyms errors

[scole%sdf.org@localhost]

>Number:         57745
>Category:       kern
>Synopsis:       compat_16 module kobj_checksyms errors
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 02 17:15:00 +0000 2023
>Originator:     scole
>Release:        10.0_RC1
>Organization:
>Environment:
NetBSD pm7200.dstar.net 10.0_RC1 NetBSD 10.0_RC1 (GENERIC-$Revision: 1.30 $) #0: Thu Nov 23 09:02:50 PST 2023  scole%dstar.dstar.net@localhost:/home/scole/nbsd/cvs/10_0/obj/sys/arch/macppc/compile/GENERIC_601 macppc
>Description:
When I ssh into my powermac 7200 or run a few other commands I'm getting these kernel messages:

[   187.935352] kobj_checksyms, 1004: [compat_16]: linker error: symbol `sendsig_sigcontext' not found
[   187.935352] kobj_checksyms, 1004: [compat_16]: linker error: symbol `esigcode' not found
[   187.935352] kobj_checksyms, 1004: [compat_16]: linker error: symbol `compat_16_sys___sigreturn14' not found
[   187.935352] kobj_checksyms, 1004: [compat_16]: linker error: symbol `sigcode' not found
[   187.935352] WARNING: module error: unable to affix module `compat_16', error 8

The ssh command seems to function normally despite the messages.

I tried rebuilding GENERIC_601 with
 include 	"conf/compat_netbsd90.config"
instead of
 include 	"conf/compat_netbsd50.config"

but it didn't seem to matter.  Sorry I don't understand much about the
compatibility infrastructure.  I think the GENERIC_601 kernel is basically a very stripped down GENERIC kernel with different compile flags so maybe some other required options are missing.

>How-To-Repeat:
ssh into a GENERIC_601 kernel
>Fix: