[ltt-dev] FATAL: Module XXX not found on powerpc cross development environment

[Mathieu Desnoyers]

(re-sending after fixing my mail server)

* Mathieu Desnoyers (compudj at krystal.dyndns.org) wrote:
> * Robert Berger (gmane at reliableembeddedsystems.com) wrote:
> > Hi,
> > 
> > I'm trying to show lttng in a Linux Device drivers training and, crazy
> > as I am, I want to use the latest and greatest.
> > (used to work with 2.6.36-lttng-0.239)
> > 
> > Here is what I do:
> > 
> > git clone
> > git://git.kernel.org/pub/scm/linux/kernel/git/compudj/linux-2.6-lttng.git linux-2.6-lttng
> > (remotes/origin/HEAD -> origin/2.6.37-lttng-0.242)
> > 
> > Are there any special extra configurations I need to make?
> > 
> > git clone git://lttng.org/ltt-control.git
> > 
> > that's on:
> > commit 07bb3e168aa9b2f527d9ecaa27c28a478c81e0db
> > 
> > ./autogen.sh --host=powerpc-linux
> > --prefix=$ELDK_PREFIX/eldk-4.2-ppc_4xx/ppc_4xx
> > make
> > make install
> > 
> > git clone git://git.lttng.org/lttng-modules.git lttng-modules
> 
> You are, by default, on the "master" branch of lttng-modules, which is
> undergoing a rather large development effort.
> 
> The LTTng kernel tree on kernel.org matches these "stable" releases.
> 
> So you should checkout the v0.19-stable branch of the lttng-modules git
> tree. It should all work fine.
> 
> Thanks,
> 
> Mathieu
> 
> > (does not cross compile, do we need this now? before I believe that the
> > modules were part of the kernel git tree)
> > 
> > echo ${KERNELDIR}
> > /work/rber/eldk-4.2-ppc_4xx/usr/src/linux-2.6-lttng/
> > make ARCH=powerpc CROSS_COMPILE=ppc_4xx-
> > 
> > make -C /work/rber/eldk-4.2-ppc_4xx/usr/src/linux-2.6-lttng/
> > M=/home/rber/projects/ldd/ldd_for_trainer/src/70.0_LTTng/lttng-modules
> > modules
> > make[1]: Entering directory
> > `/work/rber/eldk-4.2-ppc_4xx/usr/src/linux-2.6-lttng'
> >   CC [M]
> > /home/rber/projects/ldd/ldd_for_trainer/src/70.0_LTTng/lttng-modules/ltt-core.o
> > In file included from
> > /home/rber/projects/ldd/ldd_for_trainer/src/70.0_LTTng/lttng-modules/ltt-core.c:15:
> > /home/rber/projects/ldd/ldd_for_trainer/src/70.0_LTTng/lttng-modules/ltt-tracer-core.h:20:37:
> > error: linux/ringbuffer/config.h: No such file or directory
> > make[2]: ***
> > [/home/rber/projects/ldd/ldd_for_trainer/src/70.0_LTTng/lttng-modules/ltt-core.o]
> > Error 1
> > make[1]: ***
> > [_module_/home/rber/projects/ldd/ldd_for_trainer/src/70.0_LTTng/lttng-modules]
> > Error 2
> > make[1]: Leaving directory
> > `/work/rber/eldk-4.2-ppc_4xx/usr/src/linux-2.6-lttng'
> > make: *** [default] Error 2
> > 
> > Where should the file linux/ringbuffer/config.h be?
> > 
> > A find on the kernel tree shows this:
> > find -name config.h
> > ./net/tipc/config.h
> > ./drivers/staging/line6/config.h
> > ./fs/dlm/config.h
> > 
> > So without building and copying the kernel modules on my powerpc target
> > I do the following:
> > 
> > -bash-3.2# export LTT_DAEMON=/bin/lttd
> > -bash-3.2# ltt-armall
> > FATAL: Module ltt_trace_control not found.
> > FATAL: Module ltt_marker_control not found.
> > FATAL: Module ltt_tracer not found.
> > FATAL: Module ltt_relay not found.
> > FATAL: Module ltt_kprobes not found.
> > FATAL: Module ltt_userspace_event not found.
> > FATAL: Module ltt_statedump not found.
> > FATAL: Module ipc_trace not found.
> > FATAL: Module kernel_trace not found.
> > FATAL: Module mm_trace not found.
> > FATAL: Module net_trace not found.
> > FATAL: Module fs_trace not found.
> > FATAL: Module jbd2_trace not found.
> > FATAL: Module syscall_trace not found.
> > FATAL: Module trap_trace not found.
> > FATAL: Module block_trace not found.
> > FATAL: Module rcu_trace not found.
> > 
> > Am I missing something?
> > 
> > Please advise.
> > 
> > Regards,
> > 
> > Robert..."Life is too short to be taken seriously." - Oscar Wilde
> > 
> > My public pgp key is available at:
> > http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90320BF1
> > 
> > 
> > 
> > _______________________________________________
> > ltt-dev mailing list
> > ltt-dev at lists.casi.polymtl.ca
> > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
> > 
> 
> -- 
> Mathieu Desnoyers
> Operating System Efficiency R&D Consultant
> EfficiOS Inc.
> http://www.efficios.com

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com