[Xenomai-help] unresolved symbol - check the xenomai installation

[Xenomai-help] unresolved symbol - check the xenomai installation

[Gregory Gosse]

[-- Attachment #1: Type: text/plain, Size: 1798 bytes --]

Hello,

 

I have read here http://www.armadeus.com/wiki/index.php?title=Xenomai 

That the following commands can be used to check the xenomai installation :

$ dmesg | grep Xenomai

$ xeno-test

 

It gives the following results for me


root@domain.hid:~# dmesg | grep Xenomai 

[    2.229354] I-pipe: Domain Xenomai registered. 

[    2.229358] Xenomai: hal/i386 started. 

[    2.229368] Xenomai: scheduling class idle registered. 

[    2.229370] Xenomai: scheduling class rt registered. 

[    2.229804] Xenomai: real-time nucleus v2.6.0 (Movin' On) loaded. 

[    2.229806] Xenomai: debug mode enabled. 

[    2.229877] Xenomai: starting native API services. 

[    2.229878] Xenomai: starting POSIX services. 

[    2.229899] Xenomai: starting RTDM services.

 


Xeno-test

.

.

Utilisation 2313:  W.... 

 2316:  W..X. 

 2317:  GS... 

 2338:  W...V 

[Domain info] 

id=0x58454e4f 

priority=topmost 

 

mercredi 4 janvier 2012, 15:01:00 (UTC+0100) 

running: cat /proc/ipipe/version 

2.10-01 

 

mercredi 4 janvier 2012, 15:01:00 (UTC+0100) 

running: generate_loads 1 

dd workload started, pids 2602 stored in /var/lock/xeno-test.2461.pids 

 2602 pts/0    00:00:00 dd 

something died a 2602 or 

something died a 2602 or 

something died a 2602 or 

something died a 2602 or

.

.

 

I'm still unable to compile the native examples . The 'make' command  gives
such errors :


/tmp/ccqQeLZj.o: In function `demo':

trivial-periodic.c:(.text+0x2f): undefined reference to
`rt_task_set_periodic'

trivial-periodic.c:(.text+0x34): undefined reference to `rt_timer_read'

trivial-periodic.c:(.text+0x46): undefined reference to
`rt_task_wait_period'

trivial-periodic.c:(.text+0x4b): undefined reference to `rt_timer_read'

 

 

Please . Any idea to go further ?

 

Gregory

 


[-- Attachment #2: Type: text/html, Size: 8658 bytes --]

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Gilles Chanteperdrix]

On 01/04/2012 03:31 PM, Gregory Gosse wrote:
> Hello,
> 
>  
> 
> I have read here http://www.armadeus.com/wiki/index.php?title=Xenomai 
> 
> That the following commands can be used to check the xenomai installation :
> 
> $ dmesg | grep Xenomai
> 
> $ xeno-test
> 
>  
> 
> It gives the following results for me
> 
> 
> root@domain.hid:~# dmesg | grep Xenomai 
> 
> [    2.229354] I-pipe: Domain Xenomai registered. 
> 
> [    2.229358] Xenomai: hal/i386 started. 
> 
> [    2.229368] Xenomai: scheduling class idle registered. 
> 
> [    2.229370] Xenomai: scheduling class rt registered. 
> 
> [    2.229804] Xenomai: real-time nucleus v2.6.0 (Movin' On) loaded. 
> 
> [    2.229806] Xenomai: debug mode enabled. 
> 
> [    2.229877] Xenomai: starting native API services. 
> 
> [    2.229878] Xenomai: starting POSIX services. 
> 
> [    2.229899] Xenomai: starting RTDM services.

That is the output of xenomai 2.6.0.

> 
>  
> 
> 
> Xeno-test
> 
> .
> 
> .
> 
> Utilisation 2313:  W.... 
> 
>  2316:  W..X. 
> 
>  2317:  GS... 
> 
>  2338:  W...V 
> 
> [Domain info] 
> 
> id=0x58454e4f 
> 
> priority=topmost 

That is the output of xeno-test from the 2.5 branch, so, you probably
mixed two xenomai installations.

Also, as I already told you, a simple way to know if xenomai is
correctly installed is to run the latency test.

-- 
					    Gilles.

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Gregory Gosse]

I tried to install xenomai 2.4.4 but didn't go too far ( unable to prepare the kernell )
Then I switched directly to 2.6.0 . Never used the 2.5 branch

The latency test gives me that:
# /usr/xenomai/bin/latency -t0 -p200 -f -T50 
Sampling period: 200 us 
Test mode: periodic user-mode task 
All results in microseconds 
Minuterie d'alerte

>That is the output of xeno-test from the 2.5 branch, so, you probably mixed two xenomai installations.
>Also, as I already told you, a simple way to know if xenomai is correctly installed is to run the latency test.
Gilles.

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Gilles Chanteperdrix]

On 01/04/2012 05:22 PM, Gregory Gosse wrote:
> I tried to install xenomai 2.4.4 but didn't go too far ( unable to prepare the kernell )
> Then I switched directly to 2.6.0 . Never used the 2.5 branch
> 
> The latency test gives me that:
> # /usr/xenomai/bin/latency -t0 -p200 -f -T50 
> Sampling period: 200 us 
> Test mode: periodic user-mode task 
> All results in microseconds 
> Minuterie d'alerte

This looks bad. Please re-run latency with no argument. If should
normally produce a report about min/average/max latency every second. If
it does not, I would recommend restarting the installation from scratch:
- first uninstalling any installed version, running "make uninstall" in
the build directory, this for xenomai 2.4.4 and 2.6.0.
- re-run prepare-kernel, recompile the kernel, leaving the xenomai
configuration options to their default value.

-- 
					    Gilles.

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Jakub Nowacki]

On 04/01/12 17:45, Gilles Chanteperdrix wrote:
>
> This looks bad. Please re-run latency with no argument. If should
> normally produce a report about min/average/max latency every second. If
> it does not, I would recommend restarting the installation from scratch:
> - first uninstalling any installed version, running "make uninstall" in
> the build directory, this for xenomai 2.4.4 and 2.6.0.
> - re-run prepare-kernel, recompile the kernel, leaving the xenomai
> configuration options to their default value.
>
I have a similar problem trying to install xenomai 2.6.0. In my case 
latency works correctly, but trying to compile examples gives me the 
same 'unresolved reference' error. I noticed this first trying to 
compile RTXI, which also gives me

/usr/xenomai/lib/libnative.so: undefined reference to `xeno_current'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_sem_heap'
/usr/xenomai/lib/libnative.so: undefined reference to 
`xeno_sigshadow_install_once'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_set_current'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_map_heap'
/usr/xenomai/lib/libnative.so: undefined reference to `xnarch_tsc_to_ns'
/usr/xenomai/lib/libnative.so: undefined reference to 
`xeno_handle_mlock_alert'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_fault_stack'
/usr/xenomai/lib/libnative.so: undefined reference to 
`xeno_set_current_mode'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_bind_skin_opt'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_current_mode'
/usr/xenomai/lib/libnative.so: undefined reference to `xnarch_ns_to_tsc'

I did it before with Xenomai 2.5.6 and did not recall such a linking 
problems. I read before that it might be causes by cross-compilation 
being messed up, but in that case I do default compilation on linux 
2.6.38.8. I did not try 2.5.6 again to check if the problem remains for 
2.5.6, I can try to do that.

Best wishes,

Jakub

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Gilles Chanteperdrix]

On 01/06/2012 12:07 AM, Jakub Nowacki wrote:
> On 04/01/12 17:45, Gilles Chanteperdrix wrote:
>>
>> This looks bad. Please re-run latency with no argument. If should
>> normally produce a report about min/average/max latency every second. If
>> it does not, I would recommend restarting the installation from scratch:
>> - first uninstalling any installed version, running "make uninstall" in
>> the build directory, this for xenomai 2.4.4 and 2.6.0.
>> - re-run prepare-kernel, recompile the kernel, leaving the xenomai
>> configuration options to their default value.
>>
> I have a similar problem trying to install xenomai 2.6.0. In my case 
> latency works correctly, but trying to compile examples gives me the 
> same 'unresolved reference' error. I noticed this first trying to 
> compile RTXI, which also gives me
> 
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_current'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_sem_heap'
> /usr/xenomai/lib/libnative.so: undefined reference to 
> `xeno_sigshadow_install_once'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_set_current'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_map_heap'
> /usr/xenomai/lib/libnative.so: undefined reference to `xnarch_tsc_to_ns'
> /usr/xenomai/lib/libnative.so: undefined reference to 
> `xeno_handle_mlock_alert'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_fault_stack'
> /usr/xenomai/lib/libnative.so: undefined reference to 
> `xeno_set_current_mode'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_bind_skin_opt'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_current_mode'
> /usr/xenomai/lib/libnative.so: undefined refereance to `xnarch_ns_to_tsc'

This is not the same issue as Gregory. Gregory missing symbols were from
libnative, and we know that examples makefiles include -lnative, so,
libnative is probably not installed in the place where the linker looks
for it: that is an installation issue.
On the other hands, the symbols from the errors you show us are defined
in libxenomai.so. So, the RTXI build system is likely using hardcoded
flags instead of the flags returned by xeno-config: that is a makefile
issue.

-- 
					    Gilles.

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Jakub Nowacki]

On 06/01/12 09:40, Gilles Chanteperdrix wrote:
 > This is not the same issue as Gregory. Gregory missing symbols were from
 > libnative, and we know that examples makefiles include -lnative, so,
 > libnative is probably not installed in the place where the linker looks
 > for it: that is an installation issue.
 > On the other hands, the symbols from the errors you show us are defined
 > in libxenomai.so. So, the RTXI build system is likely using hardcoded
 > flags instead of the flags returned by xeno-config: that is a makefile
 > issue.
 >

OK, maybe my problem is not similar but I still get unresolved 
reference. Below I show the full listing when compilation fails

/bin/bash ../libtool --tag=CXX   --mode=link g++ -pipe -Wall 
-I/usr/share/qt3/include -DQT_THREAD_SUPPORT  -O2  -L/usr/share/qt3/lib 
-lqt-mt  -lSM -lICE  -lX11 -lXext -lXmu -lXt -lXi  -lgsl -lgslcblas -lm 
  -L/usr/xenomai/lib -lxenomai -lpthread -lrt -lnative  -o rtxi 
cmdline.o daq.o default_gui_model.o event.o fifo.o io.o main.o 
main_window.o mutex.o plugin.o rt.o rtfile.o rwlock.o sem.o settings.o 
workspace.o  rt_os-xenomai.o  moc_default_gui_model.o moc_main_window.o 
moc_plugin.o  -rdynamic
libtool: link: g++ -pipe -Wall -I/usr/share/qt3/include 
-DQT_THREAD_SUPPORT -O2 -o rtxi cmdline.o daq.o default_gui_model.o 
event.o fifo.o io.o main.o main_window.o mutex.o plugin.o rt.o rtfile.o 
rwlock.o sem.o settings.o workspace.o rt_os-xenomai.o 
moc_default_gui_model.o moc_main_window.o moc_plugin.o -rdynamic 
-L/usr/share/qt3/lib /usr/lib/libqt-mt.so -lSM -lICE -lX11 -lXext -lXmu 
-lXt -lXi -lgsl -lgslcblas -lm -L/usr/xenomai/lib 
/usr/xenomai/lib/libxenomai.so -lpthread -lrt 
/usr/xenomai/lib/libnative.so -Wl,-rpath -Wl,/usr/xenomai/lib -Wl,-rpath 
-Wl,/usr/xenomai/lib
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_current'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_sem_heap'
/usr/xenomai/lib/libnative.so: undefined reference to 
`xeno_sigshadow_install_once'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_set_current'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_map_heap'
/usr/xenomai/lib/libnative.so: undefined reference to `xnarch_tsc_to_ns'
/usr/xenomai/lib/libnative.so: undefined reference to 
`xeno_handle_mlock_alert'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_fault_stack'
/usr/xenomai/lib/libnative.so: undefined reference to 
`xeno_set_current_mode'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_bind_skin_opt'
/usr/xenomai/lib/libnative.so: undefined reference to `xeno_current_mode'
/usr/xenomai/lib/libnative.so: undefined reference to `xnarch_ns_to_tsc'
collect2: ld returned 1 exit status
make[1]: *** [rtxi] Error 1
make[1]: Leaving directory `/usr/src/rtxi-1.31/rtxi'
make: *** [all-recursive] Error 1

I use xeno-config to get flags, as you can see in the above libtool 
command. I'm not the expert on autotools, but everything seems to look 
OK. I even tried to add xenomai LD_LIBRARY_PATH, but the result is still 
the same. I think I give it a go with 2.5.6 and see if the error is 
there; I installed xenomai 2.5.6 for RTXI a couple of times on different 
machines and I don't recall this problem. Just to be absolutely clear, 
I'm suing Ubuntu 11.04 with GCC 4.6 (I checked 4.5 and I get the same 
thing).

Best wishes,

Jakub

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Philippe Gerum]

On 01/08/2012 09:38 PM, Jakub Nowacki wrote:
> On 06/01/12 09:40, Gilles Chanteperdrix wrote:
>  > This is not the same issue as Gregory. Gregory missing symbols were from
>  > libnative, and we know that examples makefiles include -lnative, so,
>  > libnative is probably not installed in the place where the linker looks
>  > for it: that is an installation issue.
>  > On the other hands, the symbols from the errors you show us are defined
>  > in libxenomai.so. So, the RTXI build system is likely using hardcoded
>  > flags instead of the flags returned by xeno-config: that is a makefile
>  > issue.
>  >
>
> OK, maybe my problem is not similar but I still get unresolved
> reference. Below I show the full listing when compilation fails
>
> /bin/bash ../libtool --tag=CXX --mode=link g++ -pipe -Wall
> -I/usr/share/qt3/include -DQT_THREAD_SUPPORT -O2 -L/usr/share/qt3/lib
> -lqt-mt -lSM -lICE -lX11 -lXext -lXmu -lXt -lXi -lgsl -lgslcblas -lm
> -L/usr/xenomai/lib -lxenomai -lpthread -lrt -lnative -o rtxi cmdline.o
> daq.o default_gui_model.o event.o fifo.o io.o main.o main_window.o
> mutex.o plugin.o rt.o rtfile.o rwlock.o sem.o settings.o workspace.o
> rt_os-xenomai.o moc_default_gui_model.o moc_main_window.o moc_plugin.o
> -rdynamic
> libtool: link: g++ -pipe -Wall -I/usr/share/qt3/include
> -DQT_THREAD_SUPPORT -O2 -o rtxi cmdline.o daq.o default_gui_model.o
> event.o fifo.o io.o main.o main_window.o mutex.o plugin.o rt.o rtfile.o
> rwlock.o sem.o settings.o workspace.o rt_os-xenomai.o
> moc_default_gui_model.o moc_main_window.o moc_plugin.o -rdynamic
> -L/usr/share/qt3/lib /usr/lib/libqt-mt.so -lSM -lICE -lX11 -lXext -lXmu
> -lXt -lXi -lgsl -lgslcblas -lm -L/usr/xenomai/lib
> /usr/xenomai/lib/libxenomai.so -lpthread -lrt
> /usr/xenomai/lib/libnative.so -Wl,-rpath -Wl,/usr/xenomai/lib -Wl,-rpath
> -Wl,/usr/xenomai/lib

References should precede definitions. Try swapping libxenomai.so and 
libnative.so in your link order. As Gilles already suggested, using the 
xeno-config script in your Makefile to get the proper link flags would 
have prevented this issue.

> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_current'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_sem_heap'
> /usr/xenomai/lib/libnative.so: undefined reference to
> `xeno_sigshadow_install_once'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_set_current'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_map_heap'
> /usr/xenomai/lib/libnative.so: undefined reference to `xnarch_tsc_to_ns'
> /usr/xenomai/lib/libnative.so: undefined reference to
> `xeno_handle_mlock_alert'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_fault_stack'
> /usr/xenomai/lib/libnative.so: undefined reference to
> `xeno_set_current_mode'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_bind_skin_opt'
> /usr/xenomai/lib/libnative.so: undefined reference to `xeno_current_mode'
> /usr/xenomai/lib/libnative.so: undefined reference to `xnarch_ns_to_tsc'
> collect2: ld returned 1 exit status
> make[1]: *** [rtxi] Error 1
> make[1]: Leaving directory `/usr/src/rtxi-1.31/rtxi'
> make: *** [all-recursive] Error 1
>
> I use xeno-config to get flags, as you can see in the above libtool
> command. I'm not the expert on autotools, but everything seems to look
> OK. I even tried to add xenomai LD_LIBRARY_PATH, but the result is still
> the same. I think I give it a go with 2.5.6 and see if the error is
> there; I installed xenomai 2.5.6 for RTXI a couple of times on different
> machines and I don't recall this problem. Just to be absolutely clear,
> I'm suing Ubuntu 11.04 with GCC 4.6 (I checked 4.5 and I get the same
> thing).
>
> Best wishes,
>
> Jakub
>
>
>
> _______________________________________________
> Xenomai-help mailing list
> Xenomai-help@domain.hid
> https://mail.gna.org/listinfo/xenomai-help
>


-- 
Philippe.

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Jakub Nowacki]

On 08/01/12 22:09, Philippe Gerum wrote:
> References should precede definitions. Try swapping libxenomai.so and
> libnative.so in your link order. As Gilles already suggested, using the
> xeno-config script in your Makefile to get the proper link flags would
> have prevented this issue.
>
Thanks for the answer. The problem is I do not have just a Makefile but 
it is generated with autotools. In autotools xeno-config is used but 
apparently order is not OK.

Cheers,

Jakub

Re: [Xenomai-help] unresolved symbol - check the xenomai installation

[Gilles Chanteperdrix]

On 01/08/2012 11:35 PM, Jakub Nowacki wrote:
> On 08/01/12 22:09, Philippe Gerum wrote:
>> References should precede definitions. Try swapping libxenomai.so and
>> libnative.so in your link order. As Gilles already suggested, using the
>> xeno-config script in your Makefile to get the proper link flags would
>> have prevented this issue.
>>
> Thanks for the answer. The problem is I do not have just a Makefile but 
> it is generated with autotools. In autotools xeno-config is used but 
> apparently order is not OK.

The flag returned by xeno-config are in the right order if you use the
"new" syntax that is --skin=native --ldflags instead of the "old" syntax
--xeno-ldflags which required you to add -lnative -lxenomai by hand.

Another solution, since xenomai 2.6.0, is to use pkg-config. How to use
pkg-config with the autotools is described here, for instance:

http://bec-systems.com/site/121/autotools-quick-reference

The name of xenomai .pc files are libxenomai_skin, so libxenomai_native
for the native skin, or libxenomai_posix for the posix skin.

-- 
                                                                Gilles.