[Xenomai-help] warnings linking demo rtdm modules

[Xenomai-help] warnings linking demo rtdm modules

[Jeff Weber]

I'm writing a kernel module that uses RTDM, and have started with a
Makefile based upon examples/rtdm/driver-api/Makefile.

Both the example Makefile, and therefore mine as well, emit linker warnings:

make -f /usr/src/linux-2.6.31.12-xenomai-2.5.1/scripts/Makefile.modpost
   scripts/mod/modpost   -i
/usr/src/linux-2.6.31.12-xenomai-2.5.1/Module.symvers -I
/usr/src/xenomai-2.5.1/examples/rtdm/driver-api/Module.symvers  -o
/usr/src/xenomai-2.5.1/examples/rtdm/driver-api/Module.symvers -S -K
/usr/src/linux-2.6.31.12-xenomai-2.5.1/Module.markers -M
/usr/src/xenomai-2.5.1/examples/rtdm/driver-api/Module.markers -w  -s
WARNING: "rtdm_dev_register"
[/usr/src/xenomai-2.5.1/examples/rtdm/driver-api/tut02-skeleton-drv.ko]
undefined!
WARNING: "rtdm_sem_init"
[/usr/src/xenomai-2.5.1/examples/rtdm/driver-api/tut02-skeleton-drv.ko]
undefined!
WARNING: "rtdm_sem_down"
[/usr/src/xenomai-2.5.1/examples/rtdm/driver-api/tut02-skeleton-drv.ko]
undefined!
...


How do I fix these warnings?

It appears modpost would be happy if given a *.symvers file for
xeno_rtdem.ko.  However I could not find such a file.

Both the demo and my modules do load without errors, however.

I have built the nucleus and rtdm kernel as modules, and am running xeno
version 2.5.1.

thanks,
Jeff