Jan Kiszka wrote:
Jan Kiszka wrote:
Hi all,
here is an improved version of the kgdb-over-ipipe patch. This version
specifically addresses the concerns Gilles brought up recently:
o No more dependencies on Xenomai, thus also no need to have the nucleus
compiled into the kernel. There is now a registrable handler,
ipipe_safe_current, which is invoked by the kgdb code to obtain
"current". When the xeno nucleus arms its services, it overloads this
handler to always provide a valid current (either the real one or
init_task for kernel-only threads).
o Replaced smp_processor_id with ipipe_processor_id in critical kgdb
code. I haven't tested this replacement, so no guarantees here. But so
far it looks consistent - at least for me.
To use the kernel debugger with Xenomai, you need the latest kgdb
patches [1] and have to follow the attached patch series.
Oops, one patch was missing: the one to add the handler registration to
Xenomai. See attachment.
Jan
------------------------------------------------------------------------
Index: ksrc/nucleus/pod.c
===================================================================
--- ksrc/nucleus/pod.c (Revision 1095)
+++ ksrc/nucleus/pod.c (Arbeitskopie)
@@ -43,6 +43,9 @@
Ok with the basic idea, but this code should definitely go to the
arch-dependent section and not to the nucleus core directly, probably to
include/asm-*/system.h, xnarch_init would be the proper place.
--
Philippe.
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