Le 20:59, Chtourou Sonda a écrit :

Dears,

Hi,

I built the uClinux kernel for NIOS II and it run well on the target board. I followed the typical actions available here : http://www.nioswiki.com/

Now, I want to add a co-scheduler xenomai to the kernel (uclinux) to reduce its latency. I followed these steps: (http://www.xenomai.org/documentation/xenomai-2.5/README.INSTALL)

I've tried to reproduce your compilation error but without success.

For using Xenomai on NIOS II processor with uClinux, you must add extra hardware in your SoPC design as explained in this tutorial (http://uuu.enseirb.fr/~kadionik/nios2-xenomai/Xenomai%20on%20NIOS%20II%20Softcore%20Processor%20Guide-v1.1.pdf).

It is OK on my Altera 1S10 board with Xenomai v2.5.1 (see traces).

Sincerely;

Patrice
========================================

Uncompressing Linux... Ok, booting the kernel. Linux version 2.6.30 (kadionik@domain.hid) (gcc version 3.4.6) #4 PREEMPT Sun Mar 0 uClinux/Nios II Built 1 zonelists in Zone order, mobility grouping off. Total pages: 4064 Kernel command line: NR_IRQS:32 PID hash table entries: 64 (order: 6, 256 bytes) I-pipe 1.1-00: pipeline enabled. Dentry cache hash table entries: 2048 (order: 1, 8192 bytes) Inode-cache hash table entries: 1024 (order: 0, 4096 bytes) Memory available: 12108k/3990k RAM, 0k/0k ROM (1931k kernel code, 2059k data) Calibrating delay loop... 24.06 BogoMIPS (lpj=120320) Mount-cache hash table entries: 512 net_namespace: 264 bytes NET: Registered protocol family 16 init_BSP(): registering device resources bio: create slab <bio-0> at 0 NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 512 (order: 0, 4096 bytes) TCP bind hash table entries: 512 (order: -1, 2048 bytes) TCP: Hash tables configured (established 512 bind 512) TCP reno registered NET: Registered protocol family 1 I-pipe: Domain Xenomai registered. Xenomai: hal/nios2 started. Xenomai: scheduling class idle registered. Xenomai: scheduling class rt registered. Xenomai: real-time nucleus v2.5.1 (Speed Of Light) loaded. Xenomai: starting native API services. Xenomai: starting POSIX services. Xenomai: starting RTDM services. io scheduler noop registered io scheduler deadline registered (default) ttyS0 at MMIO 0x810840 (irq = 5) is a Altera UART console [ttyS0] enabled

$ $xenomai-2.5.1/scripts/prepare-kernel.sh --arch=nios2 --adeos=$xenomai-2.5.1/ksrc/arch/nios2/patches/adeos-ipipe-2.6.30-nios2-1.1-00.patch
--linux=$linux_tree
$ $xenomai-2.5.1/configure --host=nios2-linux
$ make install DESTDIR=$uClinux-dist/romfs

But, in this step, I got this error:

eck_vdso-check-vdso.o ../../skins/native/libnative.la -lpthread -lm
libtool: link: ../../../scripts/wrap-link.sh nios2-linux-gcc -Wl,-elf2flt -o check-vdso check_vdso-check-vdso.o ../../skins/native/.libs/libnative.a -lpthread -lm
check-vdso.elf2flt(.text+0x16c): In function `main':
: undefined reference to `xeno_sem_heap'
check-vdso.elf2flt(.text+0x170): In function `main':
: undefined reference to `xeno_sem_heap'
collect2: ld returned 1 exit status
make[3]: *** [check-vdso] Erreur 1
make[3]: quittant le répertoire « /home/sonda/Desktop/xenomai-2.5.1/src/testsuite/unit »
make[2]: *** [all-recursive] Erreur 1
make[2]: quittant le répertoire « /home/sonda/Desktop/xenomai-2.5.1/src/testsuite »
make[1]: *** [all-recursive] Erreur 1
make[1]: quittant le répertoire « /home/sonda/Desktop/xenomai-2.5.1/src »
make: *** [all-recursive] Erreur 1

what can I do? Please help

Regards,
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-- 
Patrice Kadionik. F6KQH / F4CUQ
-----------

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-- Patrice Kadionik. F6KQH / F4CUQ ----------- +----------------------------------------------------------------------+ +"Tout doit etre aussi simple que possible, pas seulement plus simple" + +----------------------------------------------------------------------+ + Patrice Kadionik http://www.enseirb-matmeca.fr/~kadionik + + IMS Laboratory http://www.ims-bordeaux.fr/ + + ENSEIRB-MATMECA http://www.enseirb-matmeca.fr + + PO BOX 99 fax : +33 5.56.37.20.23 + + 33402 TALENCE Cedex voice : +33 5.56.84.23.47 + + FRANCE mailto:patrice.kadionik@domain.hiddeaux.fr + +----------------------------------------------------------------------+