Running PowerPC BSPs

Architecture PowerPC
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1

Hi, I’m new to RTEMS. I started with the “Quick Start” guide in the user manual. I’ve got the RTEMS tools and bsps built (ie powerpc/qemuppc and powerpc/qoriq_e6500_32 & 64). I’ve also got the hello world program built. But I’m getting the following errors while running them.

  1. For qemuppc bsp: I get error: “cannot find bsp configuration file: powerpc/qemuppc.ini”.
  2. For QorIQ: error: user value missing, BSP qoriq_e6500_32/64 requires ‘bsp_tty_dev’: missing: bsp_tty_dev.
  3. I get the same “missing:bsp_tty_dev” error while testing the rtems bsp using this command: /opt/rtems6/bin/rtems-test --rtems-bsp=qoriq_e6500_32 build/powerpc/qoriq_e6500_32.

Could someone please let me know, where to go from here?

2
  1. What exact command are you using to generate this error?
  2. This sounds like you’re missing a user_config.ini to complete the tester configuration for the BSP. Typically that .ini file would provide at least bsp_tty_dev variable among others so the tester knows how to interact with your system.
  3. Same problem as above.
3
  1. I built the BSP using the command ../source-builder/sb-set-builder --prefix=/opt/rtems/6 \ --target=powerpc-rtems6 --with-rtems-bsp=powerpc/qemuppc --with-rtems-tests=yes 6/rtems-kernel for qemuppc and ../source-builder/sb-set-builder --prefix=/opt/rtems/6 \ --target=powerpc-rtems6 --with-rtems-bsp=powerpc/qemuppc --with-rtems-tests=yes 6/rtems-kernel for qoriq_e6500_32/64 bsps.

The application was built using waf. This is the same waf script as it given in the Quick start guide.

  1. Yes, there is no user_config.ini as I was just following the Quick start guide (but decided to use a different BSP) and there was no mention of any user_config.ini there. Could you please elaborate or point to a resource which describes how to to specify such parameters ie bsp_tty_dev?

Thanks.

4

Here is my wscript:

#
# Hello world Waf script
#
from __future__ import print_function

rtems_version = "6"

try:
    import rtems_waf.rtems as rtems
except:
    print('error: no rtems_waf git submodule')
    import sys
    sys.exit(1)

def init(ctx):
    rtems.init(ctx, version = rtems_version, long_commands = True)

def bsp_configure(conf, arch_bsp):
    # Add BSP specific configuration checks
    pass

def options(opt):
    rtems.options(opt)

def configure(conf):
    rtems.configure(conf, bsp_configure = bsp_configure)

def build(bld):
    rtems.build(bld)

    bld(features = 'c cprogram',
        target = 'hello.exe',
        cflags = '-g -O2',
        source = ['main.c',
                  'init.c'])
5

Ok, I figured out how to add the bsp_tty_dev option when running the executable. I used this command to run rtems-run --rtems-bsps=powerpc/qoriq_e6500_32 build/powerpc-rtems6-qoriq_e6500_32/hello.exe --bsp_tty_dev="/ dev/tty".

Now, I’m getting this error:

RTEMS Testing - Run, 6.0.not_released
 Command Line: /opt/rtems6/bin/rtems-run --rtems-bsps=powerpc/qoriq_e6500_32 build/powerpc-rtems6-qoriq_e6500_32/hello.exe --bsp_tty_dev=/dev/tty
 Host: Linux 43199545efe4 6.10.14-linuxkit #1 SMP PREEMPT_DYNAMIC Tue Apr 15 16:05:22 UTC 2025 x86_64
 Python: 3.11.2 (main, Apr 28 2025, 14:11:48) [GCC 12.2.0]
Host: Linux-6.10.14-linuxkit-x86_64-with-glibc2.36 (Linux 43199545efe4 6.10.14-linuxkit #1 SMP PREEMPT_DYNAMIC Tue Apr 15 16:05:22 UTC 2025 x86_64 )
error: cannot find bsp configuration file: powerpc/qoriq_e6500_32.ini

So now, both the executables are complaining about missing .ini file.

6

The name in the tester is not exactly the same as the RTEMS BSP name. You’ll need to find your BSP’s tester configuration under tester/rtems/testing/bsps and use the name of the ini file. In your case, it should be --rtems-bsp=qoriq_e6500_32

7

Ok. I changed the bsp name and now I’m getting this error even though I’ve given the --bsp_tty_dev option to the rtem_run command:

RTEMS Testing - Run, 6.0.not_released
 Command Line: /opt/rtems6/bin/rtems-run --rtems-bsps=qoriq_e6500_32 build/powerpc-rtems6-qoriq_e6500_32/hello.exe --bsp_tty_dev=/dev/tty
 Host: Linux 43199545efe4 6.10.14-linuxkit #1 SMP PREEMPT_DYNAMIC Tue Apr 15 16:05:22 UTC 2025 x86_64
 Python: 3.11.2 (main, Apr 28 2025, 14:11:48) [GCC 12.2.0]
Host: Linux-6.10.14-linuxkit-x86_64-with-glibc2.36 (Linux 43199545efe4 6.10.14-linuxkit #1 SMP PREEMPT_DYNAMIC Tue Apr 15 16:05:22 UTC 2025 x86_64 )
error: user value missing, BSP qoriq_e6500_32 requires 'bsp_tty_dev': missing: bsp_tty_dev

BTW, where is the tester\rtems\testing\bsp folder located? Is it in the src tree or in the install folders? Here is an image of the folders I have!

image
image532×1158 42.8 KB

8

That path is the source location in rtems-tools. It is also installed as part of the tools install process. Most of the tester confguration information you need can be found here: 11.4. Tester Configuration — RTEMS User Manual 7.491f6c8 (12th May 2025) documentation

You will need to provide a user-config.ini which contains the appropriate BSP definition with require variables.

1 Like
9

OK. I’ve found the .ini file, shown in the pic! And thanks for the link to the document. I’ll go through it to understand how it works.

image
image1350×724 99.1 KB

Now, what does requires = bsp_tty_dev mean. Does it mean it requires a commandline or an environment parameter named bsp_tty_dev or is it the name of some other module etc?

10

That variable must be provided by the user. This is typically done in user-config.ini. Please see the link I referenced.

1 Like
11

Thanks for the help.