[Xenomai-help] Problem building and running demos

[Xenomai-help] Problem building and running demos

[Bruno Rouchouse]

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Hi Xeno users !

just trying to play with Xenomai's demos but I'm having some problems
compiling and running some of them.

Satch for the native skin
==============

I have some troubles here compiling satch.

bruno@domain.hid$ make
cc -o satch satch.c -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT
-D__XENO__ -L/usr/xenomai/lib -lpthread -lnative
/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function
`_start':
../sysdeps/i386/elf/start.S:115: undefined reference to `main'
collect2: ld returned 1 exit status

Satch for the posix skin
==============

Building process works fine but running satch fails :
My .runinfo file looks like:
satch:posix:!./satch_rt;popall:control_c

bruno@domain.hid$ xeno-load ./:satch
*
*
* Type ^C to stop this application.
*
*
Satch: producer module not running, please launch producer module before
launching consumer application.
__xeno_user_init: 2

I understand from xenomai/ksrc/skins/posix/demos/Kbuild and going quickly
through satch.c code that there should be a first module to insmod before
using the consumer module but how/when is the producer module supposed to be
built? I don't find any other module in my xenomai built tree or in my
/lib/modules/*-ipipe kernel.

The accuracy demo works fine though.

About Xenomai test-suite
===============

When I run the latency test I get something like:

sudo ./latency
== Sampling period: 100 us
== Test mode: periodic user-mode task
== All results in microseconds
warming up...
RTT|  00:00:01  (periodic user-mode task, 100 us period, priority 99)
RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat
worst
RTD|      -4.484|      -4.182|      -1.449|       0|      -4.484|      -
1.449
RTD|      -4.421|      -4.056|      -1.278|       0|      -4.484|      -
1.278
RTD|      -4.451|      -4.056|      -1.062|       0|      -4.484|      -
1.062
---|------------|------------|------------|--------|-------------------------

Sorry about the dummy question here but what is the meaning of: RTT, RTH and
RTD?

By the way, when I run the whole test suite, xeno-test, my box hangs when I
hit the control-C key in the latency test. I then figured out that the
command used for the workload (dd if=/dev/zero of=/dev/null) make my linux
hangs outside the test anyway! Any reason for that?


FYI: my config (via xeno-config)
==================

bruno@domain.hid$ xeno-config
xeno-config --verbose
    --version="2.3.50"
    --cc="gcc"
    --arch="i386"
    --prefix="/usr/xenomai"
    --xeno-cflags="-I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT
-D__XENO__"
    --xeno-ldflags="-L/usr/xenomai/lib -lpthread "
    --posix-cflags="-I/usr/xenomai/include -I/usr/xenomai/include/posix
-D_GNU_SOURCE -D_REENTRANT -D__XENO__"
    --posix-ldflags="-L/usr/xenomai/lib -lpthread_rt -lpthread -lrt "
    --library-dir="/usr/xenomai/lib"
Usage xeno-config OPTIONS
Options :
        --help
        --v,--verbose
        --version
        --cc
        --arch
        --prefix
        --xeno-cflags
        --xeno-ldflags
        --posix-cflags
        --posix-ldflags
        --lib*-dir,--libdir,--user-libdir


Any help, answer or advice in one the above mentioned points will be very
appreciated ;)

Thanks in advance.

--
Bruno

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Re: [Xenomai-help] Problem building and running demos

[Gilles Chanteperdrix]

Bruno Rouchouse wrote:
 > Hi Xeno users !
 > 
 > just trying to play with Xenomai's demos but I'm having some problems
 > compiling and running some of them.
 > 
 > Satch for the native skin
 > ==============
 > 
 > I have some troubles here compiling satch.
 > 
 > bruno@domain.hid$ make
 > cc -o satch satch.c -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT
 > -D__XENO__ -L/usr/xenomai/lib -lpthread -lnative
 > /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function
 > `_start':
 > ../sysdeps/i386/elf/start.S:115: undefined reference to `main'
 > collect2: ld returned 1 exit status
 > 
 > Satch for the posix skin
 > ==============
 > 
 > Building process works fine but running satch fails :
 > My .runinfo file looks like:
 > satch:posix:!./satch_rt;popall:control_c
 > 
 > bruno@domain.hid$ xeno-load ./:satch
 > *
 > *
 > * Type ^C to stop this application.
 > *
 > *
 > Satch: producer module not running, please launch producer module before
 > launching consumer application.
 > __xeno_user_init: 2
 > 
 > I understand from xenomai/ksrc/skins/posix/demos/Kbuild and going quickly
 > through satch.c code that there should be a first module to insmod before
 > using the consumer module but how/when is the producer module supposed to be
 > built? I don't find any other module in my xenomai built tree or in my
 > /lib/modules/*-ipipe kernel.

You are supposed to run:
make -C /path/to/your/kernel/sources M=$PWD modules
because you know how to compile kernel modules outside of the kernel
tree. You then have a ksatch.ko kernel module. It does not even work
with 2.4 kernels.

This was more intended as a test for posix shared memory and
message queues support, than as a real demo for users. I just did not
find anywhere else to put it.

What we could do is to compile the default version with -DPRODUCER
-DCONSUMER so that it would be standalone.

-- 


					    Gilles Chanteperdrix.

Re: [Xenomai-help] Problem building and running demos

[Zany Super Chimp]

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2007/6/24, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>
> Bruno Rouchouse wrote:
> > Hi Xeno users !
> >
> > just trying to play with Xenomai's demos but I'm having some problems
> > compiling and running some of them.
> >
> > Satch for the native skin
> > ==============
> >
> > I have some troubles here compiling satch.
> >
> > bruno@domain.hid$ make
> > cc -o satch satch.c -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT
> > -D__XENO__ -L/usr/xenomai/lib -lpthread -lnative
> > /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function
> > `_start':
> > ../sysdeps/i386/elf/start.S:115: undefined reference to `main'
> > collect2: ld returned 1 exit status
> >
> > Satch for the posix skin
> > ==============
> >
> > Building process works fine but running satch fails :
> > My .runinfo file looks like:
> > satch:posix:!./satch_rt;popall:control_c
> >
> > bruno@domain.hid$ xeno-load ./:satch
> > *
> > *
> > * Type ^C to stop this application.
> > *
> > *
> > Satch: producer module not running, please launch producer module before
> > launching consumer application.
> > __xeno_user_init: 2
> >
> > I understand from xenomai/ksrc/skins/posix/demos/Kbuild and going
> quickly
> > through satch.c code that there should be a first module to insmod
> before
> > using the consumer module but how/when is the producer module supposed
> to be
> > built? I don't find any other module in my xenomai built tree or in my
> > /lib/modules/*-ipipe kernel.
>
> You are supposed to run:
> make -C /path/to/your/kernel/sources M=$PWD modules
> because you know how to compile kernel modules outside of the kernel
> tree. You then have a ksatch.ko kernel module. It does not even work
> with 2.4 kernels.


Well, shame  on me then because I'm not too familiar with kernel module
build process ;)

I get some warnings though which prevent me from insmoding ksatch.koafterwards:

bruno@domain.hid$ make -C /usr/src/linux-
2.6.20.14-ipipe M=$PWD modules
make: Entering directory `/usr/src/linux-2.6.20.14-ipipe'
  CC [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/satch.o
  LD [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.o
  Building modules, stage 2.
  MODPOST 1 modules
WARNING: "shm_unlink" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
undefined!
WARNING: "mmap" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
undefined!
WARNING: "ftruncate" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
undefined!
WARNING: "pse51_shm_close"
[/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko] undefined!
WARNING: "shm_open" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
undefined!
WARNING: "munmap" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
undefined!
  CC      /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.mod.o
  LD [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko
make: Leaving directory `/usr/src/linux-2.6.20.14-ipipe'

Something missing in the Kbuild file? How to reference symbols of the posix
lib?

And then of course, insmoding ksatch.ko fails...

sudo modprobe xeno_posix

sudo insmod ./ksatch.ko

tail -f /var/log/message

Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol munmap
Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol shm_open
Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol pse51_shm_close
Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol ftruncate
Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol mmap
Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol shm_unlink

This was more intended as a test for posix shared memory and
> message queues support, than as a real demo for users. I just did not
> find anywhere else to put it.


An interesting use case in fact.

What we could do is to compile the default version with -DPRODUCER
> -DCONSUMER so that it would be standalone.


Well from my point of view  a short README on how to build the application
would be just fine.
I'll document that in my short "getting started guide" anyway.

Thanks a lot.

--Bruno

--
>
>
>                                             Gilles Chanteperdrix.
>
> _______________________________________________
> Xenomai-help mailing list
> Xenomai-help@domain.hid
> https://mail.gna.org/listinfo/xenomai-help
>

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Re: [Xenomai-help] Problem building and running demos

[Jan Kiszka]

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Zany Super Chimp wrote:
> 2007/6/24, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>>
>> Bruno Rouchouse wrote:
>> > Hi Xeno users !
>> >
>> > just trying to play with Xenomai's demos but I'm having some problems
>> > compiling and running some of them.
>> >
>> > Satch for the native skin
>> > ==============
>> >
>> > I have some troubles here compiling satch.
>> >
>> > bruno@domain.hid$ make
>> > cc -o satch satch.c -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT
>> > -D__XENO__ -L/usr/xenomai/lib -lpthread -lnative
>> > /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function
>> > `_start':
>> > ../sysdeps/i386/elf/start.S:115: undefined reference to `main'
>> > collect2: ld returned 1 exit status
>> >
>> > Satch for the posix skin
>> > ==============
>> >
>> > Building process works fine but running satch fails :
>> > My .runinfo file looks like:
>> > satch:posix:!./satch_rt;popall:control_c
>> >
>> > bruno@domain.hid$ xeno-load ./:satch
>> > *
>> > *
>> > * Type ^C to stop this application.
>> > *
>> > *
>> > Satch: producer module not running, please launch producer module
>> before
>> > launching consumer application.
>> > __xeno_user_init: 2
>> >
>> > I understand from xenomai/ksrc/skins/posix/demos/Kbuild and going
>> quickly
>> > through satch.c code that there should be a first module to insmod
>> before
>> > using the consumer module but how/when is the producer module supposed
>> to be
>> > built? I don't find any other module in my xenomai built tree or in my
>> > /lib/modules/*-ipipe kernel.
>>
>> You are supposed to run:
>> make -C /path/to/your/kernel/sources M=$PWD modules
>> because you know how to compile kernel modules outside of the kernel
>> tree. You then have a ksatch.ko kernel module. It does not even work
>> with 2.4 kernels.
> 
> 
> Well, shame  on me then because I'm not too familiar with kernel module
> build process ;)
> 
> I get some warnings though which prevent me from insmoding
> ksatch.koafterwards:
> 
> bruno@domain.hid$ make -C /usr/src/linux-
> 2.6.20.14-ipipe M=$PWD modules
> make: Entering directory `/usr/src/linux-2.6.20.14-ipipe'
>  CC [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/satch.o
>  LD [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.o
>  Building modules, stage 2.
>  MODPOST 1 modules
> WARNING: "shm_unlink"
> [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
> undefined!
> WARNING: "mmap" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
> undefined!
> WARNING: "ftruncate" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
> undefined!
> WARNING: "pse51_shm_close"
> [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko] undefined!
> WARNING: "shm_open" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
> undefined!
> WARNING: "munmap" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
> undefined!
>  CC      /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.mod.o
>  LD [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko
> make: Leaving directory `/usr/src/linux-2.6.20.14-ipipe'
> 
> Something missing in the Kbuild file? How to reference symbols of the posix
> lib?
> 
> And then of course, insmoding ksatch.ko fails...
> 
> sudo modprobe xeno_posix
> 
> sudo insmod ./ksatch.ko
> 
> tail -f /var/log/message
> 
> Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol munmap
> Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol shm_open
> Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol pse51_shm_close
> Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol ftruncate
> Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol mmap
> Jun 24 23:45:09 localhost kernel: ksatch: Unknown symbol shm_unlink
> 
> This was more intended as a test for posix shared memory and
>> message queues support, than as a real demo for users. I just did not
>> find anywhere else to put it.
> 
> 
> An interesting use case in fact.
> 
> What we could do is to compile the default version with -DPRODUCER
>> -DCONSUMER so that it would be standalone.
> 
> 
> Well from my point of view  a short README on how to build the application
> would be just fine.
> I'll document that in my short "getting started guide" anyway.

Why not move the demos over into the examples repository and integrate
them into the existing build system? Would be a good chance to start
populating the posix folder over there.

Jan


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Re: [Xenomai-help] Problem building and running demos

[Gilles Chanteperdrix]

Zany Super Chimp wrote:
 > 2007/6/24, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
 > >
 > > Bruno Rouchouse wrote:
 > > > Hi Xeno users !
 > > >
 > > > just trying to play with Xenomai's demos but I'm having some problems
 > > > compiling and running some of them.
 > > >
 > > > Satch for the native skin
 > > > ==============
 > > >
 > > > I have some troubles here compiling satch.
 > > >
 > > > bruno@domain.hid$ make
 > > > cc -o satch satch.c -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT
 > > > -D__XENO__ -L/usr/xenomai/lib -lpthread -lnative
 > > > /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function
 > > > `_start':
 > > > ../sysdeps/i386/elf/start.S:115: undefined reference to `main'
 > > > collect2: ld returned 1 exit status
 > > >
 > > > Satch for the posix skin
 > > > ==============
 > > >
 > > > Building process works fine but running satch fails :
 > > > My .runinfo file looks like:
 > > > satch:posix:!./satch_rt;popall:control_c
 > > >
 > > > bruno@domain.hid$ xeno-load ./:satch
 > > > *
 > > > *
 > > > * Type ^C to stop this application.
 > > > *
 > > > *
 > > > Satch: producer module not running, please launch producer module before
 > > > launching consumer application.
 > > > __xeno_user_init: 2
 > > >
 > > > I understand from xenomai/ksrc/skins/posix/demos/Kbuild and going
 > > quickly
 > > > through satch.c code that there should be a first module to insmod
 > > before
 > > > using the consumer module but how/when is the producer module supposed
 > > to be
 > > > built? I don't find any other module in my xenomai built tree or in my
 > > > /lib/modules/*-ipipe kernel.
 > >
 > > You are supposed to run:
 > > make -C /path/to/your/kernel/sources M=$PWD modules
 > > because you know how to compile kernel modules outside of the kernel
 > > tree. You then have a ksatch.ko kernel module. It does not even work
 > > with 2.4 kernels.
 > 
 > 
 > Well, shame  on me then because I'm not too familiar with kernel module
 > build process ;)
 > 
 > I get some warnings though which prevent me from insmoding ksatch.koafterwards:
 > 
 > bruno@domain.hid$ make -C /usr/src/linux-
 > 2.6.20.14-ipipe M=$PWD modules
 > make: Entering directory `/usr/src/linux-2.6.20.14-ipipe'
 >   CC [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/satch.o
 >   LD [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.o
 >   Building modules, stage 2.
 >   MODPOST 1 modules
 > WARNING: "shm_unlink" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
 > undefined!
 > WARNING: "mmap" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
 > undefined!
 > WARNING: "ftruncate" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
 > undefined!
 > WARNING: "pse51_shm_close"
 > [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko] undefined!
 > WARNING: "shm_open" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
 > undefined!
 > WARNING: "munmap" [/home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko]
 > undefined!
 >   CC      /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.mod.o
 >   LD [M]  /home/bruno/xenomai/ksrc/skins/posix/demos/ksatch.ko
 > make: Leaving directory `/usr/src/linux-2.6.20.14-ipipe'
 > 
 > Something missing in the Kbuild file? How to reference symbols of the posix
 > lib?

You have to select posix shared memory (CONFIG_XENO_OPT_POSIX_SHM) when
configuring the kernel.

-- 


					    Gilles Chanteperdrix.

Re: [Xenomai-help] Problem building and running demos

[Gilles Chanteperdrix]

Jan Kiszka wrote:
 > Why not move the demos over into the examples repository and integrate
 > them into the existing build system? Would be a good chance to start
 > populating the posix folder over there.

Yes, I will probably do that.

-- 


					    Gilles Chanteperdrix.