> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: vendredi, 19. octobre 2007 00:06 > To: xenomai-core > Cc: ROSSIER Daniel > Subject: LTTng for Xenomai - next round > > Hi, > > LTTng is becoming interesting again: Mathieu uploaded a back-port to > 2.6.23.1 yesterday which is already implementing the scheme that is > intended to be submitted upstream. > > What changed for us? > > - We now have a recent patch basis for the kernel again. > > - The instrumentation process was significantly simplified: No more > facility registration, no more probe modules, no more XML file > hacking - it's all derived from the trace points now! Some example: > > trace_mark(kernel_timer_itimer_expired, "pid %d", sig->tsk->pid); > ^----^ ^------------------^ ^----^ > facility trace point argument name > name name and type > > I rebased the patches over I-pipe for i386 (see attached patches and > extended series description), and I also started to rework the Xenomai > patch. The diffstat of the latter is fairly telling: > > include/nucleus/ltt.h | 111 +--------------------------- > ksrc/nucleus/Config.in | 9 -- > ksrc/nucleus/Kconfig | 36 --------- > ksrc/nucleus/Makefile | 3 > ksrc/nucleus/intr.c | 19 ++-- > ksrc/nucleus/ltt.c | 186 --------------------------------------- > --------- > ksrc/nucleus/module.c | 7 - > ksrc/nucleus/pod.c | 102 ++++++++++++++++---------- > ksrc/nucleus/shadow.c | 43 +++++++---- > ksrc/nucleus/synch.c | 19 +++- > ksrc/nucleus/timebase.c | 6 - > 11 files changed, 125 insertions(+), 416 deletions(-) > > You see, no more ltt.c, i.e. no more probe module! > > At this point, we are already able to use the services of "lttv -m > textDump" or lttv-gui to display traces from Xenomai kernels as event > lists. Yes, I tried this, and it works! (Hint: Don't forget to ltt- > armall your trace points before trying to collect data...) > > Yet to be done: > > - Finish the xnltt_log_event refactoring (half done, pod.c is missing > yet - with ~30 trace point) > > - Port and update the Xenomai extension over latest lttv. > > Well, I'm not looking for work, I'm looking for workers :). Anyone > interested and available to help with the open topics? Daniel...?
Sounds very good :-) I will see if we can contribute. Jean-Philippe is working on a comparison between Xenomai and RTOS-32 for a x86 target system (diploma work) and is currently about to install the pretty old version (2.6.17) of xenoltt. I will see with him if it makes sense to migrate to the latest version, at this point of his work. > > Jan Daniel _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
