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I've been working on some LKMs for a while (zaptel drivers for NetBSD),
and an issue that's been bugging me for a while is finally annoying
enough for me to try and figure out what's causing it.


The problem:  if I load the LKMs from the commandline, it's fine. 
However, when I configure things in lkm.conf for boot-time load, I get
undefined reference errors.  This is *with* the -s flag.


Loading from commandline:

slim:riz  ~/code/zaptel> sudo modload -s /usr/lkm/mod_zaptel.o 
Module loaded as ID 0
slim:riz  ~/code/zaptel> sudo modload -s /usr/lkm/mod_ztdummy.o
Module loaded as ID 1


At boot time:

Module loaded as ID 0
mod_ztdummy.o: /usr/lkm/mod_ztdummy.o(.text+0x12f): In function
`ztdummy_initialize':
/home/riz/code/zaptel/ztdummy/ztdummy.c:101: undefined reference to
`zt_register'
/usr/lkm/mod_ztdummy.o(.text+0x250): In function `cleanup_module':
/home/riz/code/zaptel/ztdummy/ztdummy.c:152: undefined reference to
`zt_unregister'
/usr/lkm/mod_ztdummy.o(.text+0x3f6): In function `ztdummy_timer':
/home/riz/code/zaptel/ztdummy/ztdummy.c:75: undefined reference to
`zt_receive'
/usr/lkm/mod_ztdummy.o(.text+0x402):/home/riz/code/zaptel/ztdummy/ztdummy.c:76:
undefined reference to `zt_transmit'
modload: can't prelink `/usr/lkm/mod_ztdummy.o' creating
`/usr/lkm/mod_ztdummy'


... the first module loads, but the second (which requires symbols from
the first) doesn't.  Here's what /etc/lkm.conf looks like:

# path          options         entry           postinstall    
output          when
#/lkm/if_ipl.o  -               -               -              
-               -
/usr/lkm/mod_zaptel.o -s - - - AFTERMOUNT
/usr/lkm/mod_ztdummy.o -s - - - AFTERMOUNT


... as you can see, I _do_ have the -s flag in there.  Even more
interesting, someone else using this code (also on a 2.0 system, like
this one) is NOT seeing this problem.

What am I doing wrong, here?

Thanks,
+j


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