libbsd network on an mvme2500
bchandler at anl.gov
Tue Aug 17 19:19:37 UTC 2021
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
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:
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,
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