On Wed, Mar 12, 2008 at 11:22 AM, Wolfgang Grandegger <[EMAIL PROTECTED]> wrote:
>
> Gilles Chanteperdrix wrote:
>  > Wolfgang Grandegger wrote:
>  >  > Hello,
>  >  >
>  >  > I tried to test the POSIX example program satch.c under Linux 2.4.25 for
>  >  > PPC. I was able to fix a few issues but the module does still not load.
>  >  > I have attached a patch for Xenomai 2.4.2 fixing:
>  >  >
>  >  > - User-space satch: It was necessary to move time.h and signal.h to the
>  >  >   end of the include block to get it compiled (otherwise clockid_t is
>  >  >   defined, etc.)
>  >  >
>  >  > - User-space satch: It was necessary to move "#define xnprintf printf"
>  >  >   behind the include block, otherwise the linker complains about missing
>  >  >   symbols. I wonder how this can work with 2.6. And what is the status
>  >  >   of xnprintf?
>  >  >
>  >  > - Makefile: to avoid a mixup of CFLAG definitions for compiling the
>  >  >   user-space and kernel-space part, I renamed CFLAGS to UCFLAGS etc.
>  >  >   (see patch). Note sure if this is an issue for 2.6 as well.
>  >  >
>  >  > - Makefile: I added -DPRODUCER to the module build with Linux 2.4.
>  >  >
>  >  > - I got the module build, but insmod fails with:
>  >  >
>  >  >   bash-2.05b# insmod satch.o
>  >  >   satch.o: unresolved symbol shm_unlink
>  >  >   satch.o: unresolved symbol ftruncate
>  >  >   satch.o: unresolved symbol shm_open
>  >  >   satch.o: unresolved symbol munmap
>  >  >   satch.o: unresolved symbol mmap
>  >  >   satch.o: unresolved symbol pse51_shm_close
>  >  >
>  >  >   Any idea why?
>  >  >
>  >  > Thanks,
>  >
>  > Does the following patch improve anything ?
>
>  Yes, the order of the include files does not make trouble any more.
>  Nevertheless, I need the attached patch to fix the remaining problems
>  with CFLAGS mangling and missing -DPRODUCER.

Do we really need the UCFLAGS stuff ? CFLAGS is a standard thing, how
do the other examples cope with the same problem ? Perhaps  we could
put modules compilation in a separated makefile name Kbuild ?

-- 
 Gilles Chanteperdrix

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