Re: comedi working only with Allsoft RTAI?

From: Ivan Martinez <imr_at_oersted.dtu.dk> · Date: Mon, 4 Nov 2002 10:26:38 +0100

Ummm... I think I previously suceeded with kernel 2.4.18 too. Maybe the 
problem comes with 2.4.19. I'll try 2.4.18 again.
Ivan

On Saturday 02 November 2002 12:20 am, Jim Benson wrote:
> On Fri, 1 Nov 2002, Ivan Martinez wrote:
> > In my case, using a 2.4 kernel doesn't make things "ok":
> > https://cvs.comedi.org/pipermail/comedi/2002-October/003694.html
> > Is there anybody that managed to install the latest Comedi with a
> > rthal-patched kernel at all?.
> > Ivan Martinez
>
> As a test I installed RTAI-24.1.9 and applied the  patch-2.4.18-rthal5g
> to a fresh 2.4.18 kernel.
>
> After recompiling everything, rebooting etc. comedi-0.7.65 then
> compiles and installed just fine.
>
> I think the problem is due to RTAI-24.1.10 switching to loading that
> allsoft_rtai.h and the use of RTAI defines that comedi may (at
> least i havent figured out yet how) not know about.
>
> I'm looking at the allsoft_rtai.h file and looking for a way
> for comedi to use the right ifdef sections...other than
> hacking up the allsoft_rtai.h file.
>
> Jim
>
> > On Thursday 31 October 2002 11:14 pm, Jim Benson wrote:
> > > I'm having these same problems with RTAI 24.1.10 and comedi.
> > > I have been looking around in the rtai code and i see that:
> > >
> > > cat /usr/src/rtai-24.1.10/include/asm-i386/rtai.h
> > >
> > > #ifdef CONFIG_RTAI_LINUX22
> > > #include <asm/rtai-22.h>
> > > #else
> > > #include <asm/allsoft_rtai.h>
> > > #endif
> > >
> > > and
> > >
> > > cat /usr/src/rtai-24.1.9/include/asm-i386/rtai.h
> > >
> > > #ifdef CONFIG_RTAI_LINUX22
> > > #include <asm/rtai-22.h>
> > > #else
> > > #include <asm/rtai-24.h>
> > > #endif
> > >
> > > ...so doen't comedi include
> > > the else part for both cases?...since it knows
> > > nothing about RTAI defines (CONFIG_RTAI_LINUX22)...
> > > ok unless one is using 2.2.
> > >
> > > But then in allsoft_rtai.h
> > > there is:
> > >
> > > #ifdef CONFIG_RTAI_RTHAL
> > >
> > > #define HARD_CLI                 hard_cli
> > > #define HARD_STI                 hard_sti
> > > #define HARD_RESTORE_FLAGS       hard_restore_flags
> > > #define HARD_SAVE_FLAGS          hard_save_flags
> > > #define HARD_SAVE_FLAGS_AND_CLI  hard_save_flags_and_cli
> > >
> > > #else
> > >
> > > #define hard_cli                 HARD_CLI
> > > #define hard_sti                 HARD_STI
> > > #define hard_restore_flags       HARD_RESTORE_FLAGS
> > > #define hard_save_flags          HARD_SAVE_FLAGS
> > > #define hard_save_flags_and_cli  HARD_SAVE_FLAGS_AND_CLI
> > >
> > > #endif
> > >
> > > ...again it does the else...and cause warnings like:
> > >
> > > /usr/src/rtai/include/asm/allsoft_rtai.h:196: warning: `hard_cli'
> > > redefined
> > > /usr/src/linux-2.4.19/include/asm/system.h:321: warning: this is the
> > > location of the previous definition
> > >
> > > and eventually the:
> > > > depmod: *** Unresolved symbols in
> > > > /lib/modules/2.4.19-rthal5/comedi/comedi/comedi.o
> > > > depmod:         HARD_CLI
> > > > depmod:         HARD_RESTORE_FLAGS
> > > > depmod:         HARD_SAVE_FLAGS_AND_CLI
> > >
> > > ???
> > >
> > > Thanks,
> > >
> > > Jim
> > >
> > > On 30 Oct 2002, Axel von Arnim wrote:
> > > > Hi,
> > > >
> > > >    I installed RTAI 24.1.10 rthal5 on my 2.4.19 kernel. No problem
> > > > (well, after a number of kernel recompilations and gcc version
> > > > changes...).
> > > >   I configured comedi-0.7.65 so that it uses RTAI. After compilation
> > > > and many warnings in /usr/src/rtai/include/asm/allsoft_rtai.h telling
> > > > that HARD_CLI() and other HARD_... functions were implicitly
> > > > declared, I had depmod error reports:
> > > >
> > > > /sbin/depmod -ae
> > > > depmod: *** Unresolved symbols in
> > > > /lib/modules/2.4.19-rthal5/comedi/comedi/comedi.o
> > > > depmod:         HARD_CLI
> > > > depmod:         HARD_RESTORE_FLAGS
> > > > depmod:         HARD_SAVE_FLAGS_AND_CLI
> > > > depmod:         HARD_STI
> > > > depmod: *** Unresolved symbols in
> > > > /lib/modules/2.4.19-rthal5/comedi/comedi/drivers/ni_pcimio.o
> > > > depmod:         HARD_RESTORE_FLAGS
> > > > depmod:         HARD_SAVE_FLAGS_AND_CLI
> > > > depmod: *** Unresolved symbols in
> > > > /lib/modules/2.4.19-rthal5/comedi/comedi/kcomedilib/kcomedilib.o
> > > > depmod:         HARD_RESTORE_FLAGS
> > > > depmod:         HARD_SAVE_FLAGS_AND_CLI
> > > >
> > > > I looked for the declarations of these functions in the rtai source
> > > > code and found that they were defined in the allsoft kernel patch.
> > > > Does it mean that rtai-comedi does only work with the allsoft patch,
> > > > and NOT with the rthal patch? If yes, where is this documented? I
> > > > didn't find mention of it anywhere.
> > > >
> > > > Should I patch the kernel with allsoft instead of rthal to solve my
> > > > problem?
> > >
> > > _______________________________________________
> > > comedi mailing list
> > > comedi_at_comedi.org
> > > https://cvs.comedi.org/cgi-bin/mailman/listinfo/comedi
>
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