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Date: Fri, 04 Apr 2008 12:12:10 +0200
From: Wolfgang Grandegger <wg@domain.hid>
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Subject: Re: [Xenomai-help] problem with trivial-periodic.c example
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To: =?ISO-8859-1?Q?Thomas_H=E4berle?= <thomas.haeberle@domain.hid>
Cc: xenomai@xenomai.org

Thomas H=E4berle wrote:
> Hello!
>=20
> I am running Xenomai 2.3.5 on my MPC5200S on a STK52xx with a Linux=20
> 2.4.25-DENX kernel (cross-compiling to the target).
>=20
> When I try to compile the "trivial-periodic.c" example with
>  >>> $ ppc_6xx-gcc SimpleTask.c -I $XENOINSTALL/include -L=20
> $XENOINSTALL/lib -o SimpleTask -Wall
>=20
> I get the following:
>  >>>
> /tmp/ccwxJiOz.o(.text+0x30): In function `demo':
> : undefined reference to `rt_task_set_periodic'
> /tmp/ccwxJiOz.o(.text+0x34): In function `demo':
> : undefined reference to `rt_timer_read'
> /tmp/ccwxJiOz.o(.text+0x4c): In function `demo':
> : undefined reference to `rt_task_wait_period'
> /tmp/ccwxJiOz.o(.text+0x50): In function `demo':
> : undefined reference to `rt_timer_read'
> /tmp/ccwxJiOz.o(.text+0x160): In function `main':
> : undefined reference to `rt_task_create'
> /tmp/ccwxJiOz.o(.text+0x178): In function `main':
> : undefined reference to `rt_task_start'
> /tmp/ccwxJiOz.o(.text+0x188): In function `main':
> : undefined reference to `rt_task_delete'
> collect2: ld returned 1 exit status
> <<<
>=20
> Aren't the functions used in the example in the libraries in the=20
> "$XENOINSTALL/lib" directory?
> Or do I have to tell the compiler and/or linker about any of the Xenomai =

> source paths to get this working?

Please use the Makefile in that directory to learn how to build it. You
may need to define DESTDIR as well.

Wolfgang.