----- Original Message ----- > From: "Gerlando Falauto" <gerlando.falauto@xxxxxxxxxxx> > To: "loody" <miloody@xxxxxxxxx> > Cc: "gcc-help" <gcc-help@xxxxxxxxxxx>, lttng-dev@xxxxxxxxxxxxxxx > Sent: Wednesday, May 14, 2014 10:52:49 AM > Subject: Re: [lttng-dev] compile lttng get gcc compile error > > Hi loody, > [originally posted to gcc-help, cross-posting to lttng-dev] > > On 03/27/2014 01:37 PM, loody wrote: > > hi Jonathan: > > > > 2014-03-27 18:43 GMT+08:00 Jonathan Wakely <jwakely.gcc@xxxxxxxxx>: > >> On 27 March 2014 10:32, loody wrote: > >>> hi all > >>> when I try to cross-compile lttng-tool for arm. > >>> I get below message > >>> > >>> CC kernel-consumer.lo > >>> kernel-consumer.c: In function 'lttng_kconsumer_snapshot_channel': > >>> kernel-consumer.c:324:1: internal compiler error: in gen_movsi, at > >>> config/arm/arm.md:5680 > >>> > >>> my gcc version is 4.7.4 > >> > >> I think this is http://gcc.gnu.org/PR58595 which will be fixed in GCC > >> 4.9.0 > > is there any patch I can use to fix this issue before waiting 4.9.0 > > release? > > or is there method I can avoid this compile happen if I rewrite the source? > > > > thanks a lot, > > > > Did you ever find a workaround for such an issue? Perhaps by refactoring > the code within lttng_kconsumer_snapshot_channel()? A similar issue was experienced due to a gcc ARM bug. It only triggered in O2 on specific gcc versions. I updated http://bugs.lttng.org/issues/640 with a suggested work around: compile lttng-tools in O1 if you cannot get a fixed compiler. Thanks, Mathieu > > Thank you! > Gerlando > > _______________________________________________ > lttng-dev mailing list > lttng-dev@xxxxxxxxxxxxxxx > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev > -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
