Re: LTTng 0.62 on omap 1611

* Liselene Borges ([email protected]) wrote:
> Hi Mathieu,
> 
> I have tried to compile LTTng version 0.6.41, but unfortunately I got this
> error message:
> 
>  CC      arch/arm/kernel/asm-offsets.s
> In file included from include/linux/spinlock_types.h:13,
>                 from include/linux/spinlock.h:79,
>                 from include/linux/capability.h:46,
>                 from include/linux/sched.h:45,
>                 from arch/arm/kernel/asm-offsets.c:14:
> include/linux/lockdep.h:93: error: array type has incomplete element type
> include/linux/lockdep.h:134: error: field 'trace' has incomplete type
> make[1]: *** [arch/arm/kernel/asm-offsets.s] Error 1
> make: *** [prepare0] Error 2
> make: *** Waiting for unfinished jobs....
>  HOSTLD  scripts/mod/modpost
> 
> So I've tried, disabling Toolkit and Facility Locking and then it shows
> problems during linking process, as follows:
> 
>  LD      init/built-in.o
>  LD      .tmp_vmlinux1
> ltt/built-in.o: In function `ltt_force_switch':
> ltt/ltt-relay.c:649: undefined reference to `cmpxchg'
> ltt/built-in.o: In function `ltt_ioctl':
> ltt/ltt-relay.c:309: undefined reference to `cmpxchg'
> ltt/built-in.o: In function `ltt_relay_reserve_slot':
> ltt/ltt-relay.c:966: undefined reference to `cmpxchg'
> ltt/ltt-relay.c:990: undefined reference to `cmpxchg'
> make: *** [.tmp_vmlinux1] Error 1
> 

Found the issue, it's been fixed in further versions :

edit include/asm-generic/atomic.h

change :

#define atomic_long_cmpxchg(l, old, new) \
        ((long)cmpxchg(&((l)->counter), (old), (new)))
#define atomic_long_xchg(l, new) (xchg(&((l)->counter), (new)))

for

#define atomic_long_cmpxchg(l, old, new) \
        (atomic_cmpxchg((atomic_t *)(l), (old), (new)))
#define atomic_long_xchg(v, new) \
        (atomic_xchg((atomic_t *)(l), (new)))

It comes from the fact that arm does not define cmpxchg(), but does
define atomic_cmpxchg().



> Do you have a suggest where might be the problem?
> 
> Br,
> Liselene
> 
> On 4/13/07, Mathieu Desnoyers <[email protected]> wrote:
> >
> >Hrm, you may want to try a newer LTTng version and see if the problem
> >persists.
> >
> >Mathieu
> >
> >* Liselene Borges ([email protected]) wrote:
> >> Hi Mathieu,
> >>
> >> I have all my modules set to built-in, so I dont need to load any
> >module.
> >> Just correcting, I am using Lttng version 0.6.2.
> >>
> >> Br,
> >> Liselene
> >>
> >> On 4/12/07, Mathieu Desnoyers <[email protected]> wrote:
> >> >
> >> >* Liselene Borges ([email protected]) wrote:
> >> >> Hi all,
> >> >>
> >> >> I am trying to run LTTng 0.62 in my omap 1611, running linux 2.6.18.
> >> >> I have installed ltt-control-0.26. I am testing a simple use case, a
> >> >file
> >> >> transfer between RAM and MMC card.
> >> >> The trace runs fine, but the results are quite wierd. It just apper
> >> >these
> >> >> instrumentation, as follows:
> >> >>
> >> >> core.state_dump_facility_load
> >> >> core.time_heartbeat
> >> >> statedump.enumerate_file_descriptors
> >> >> statedump.enumerate_network_ip_interface
> >> >> statedump.enumerate_process_state
> >> >> statedump.enumerate_vm_maps
> >> >> statedump.statedump_end
> >> >>
> >> >> I have tested it with other versions of lttng (0.5113) and for me it
> >> >shows
> >> >> more facilities.
> >> >> May I am doing something wrong? Is lttng 0.62 arm port ok?
> >> >>
> >> >
> >> >You will need to load the ltt-probe-* kernel modules just before
> >> >starting to trace. See the QUICKSTART for details.
> >> >
> >> >Mathieu
> >> >
> >> >
> >> >> Br,
> >> >> Liselene
> >> >
> >> >> _______________________________________________
> >> >> Ltt-dev mailing list
> >> >> [email protected]
> >> >> http://listserv.shafik.org/mailman/listinfo/ltt-dev
> >> >
> >> >
> >> >--
> >> >Mathieu Desnoyers
> >> >Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> >> >OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE
> >> >9A68
> >> >
> >
> >--
> >Mathieu Desnoyers
> >Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
> >OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE
> >9A68
> >

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68