libbsd network on an mvme2500

[Chandler, Brendan]

I think I found the answer to my own issue.  I needed this configuration option:
#define CONFIGURE_MAXIMUM_USER_EXTENSIONS       5

With that, the error "cannot create extension" goes away and I can boot.


________________________________________
From: Chandler, Brendan <bchandler at anl.gov>
Sent: Tuesday, August 17, 2021 11:09
To: users at rtems.org
Subject: libbsd network on an mvme2500

Hi rtems-users,

I'm trying to set up a simple RTEMS 5 program to get my mvme2500 board up and running with a static network configuration using libbsd.  I took the hello.c example from the getting started guide, and modified it to use libbsd and configure the network.  My problem is I get a runtime error when loading my binary when I call rtems_bsd_initialize():

## Booting kernel from Legacy Image at 10000000 ...
   Image Name:   RTEMS
   Created:      2021-08-17  15:32:55 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    968695 Bytes = 946 KiB
   Load Address: 00004000
   Entry Point:  00004000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 20000000
   Booting using the fdt blob at 0x20000000
   Uncompressing Kernel Image ... OK
   Loading Device Tree to 00ff9000, end 00fff04a ... OK
emerg: rtems_bsd_threads_init_early: cannot create extension

This seems to be coming from rtems-libbsd/rtemsbsd/rtems/rtems-kernel-thread.c where the call to rtems_extension_create() fails.

I've posted my code at github here:
https://github.com/brendanchandler/test-rtems5

Can anyone help get around this error?  I'm probably missing some configuration or setup, but haven't been able to determine what it is.

Thanks in advance for any help,
Brendan