-----Message d'origine----- De : Mathieu Desnoyers [mailto:[email protected]] Envoyé : 5 juin 2014 13:55
>> I need to revive this thread. Although the original build failure may >> have been on ARMv7 wanting ARMv4, I've run into the same failure with a >> pure ARMv7 architecture. Specifically, Beagle Bone Black. >> >> I built userspace-rcu without trouble (except for that clock business >> reported earlier), but when I then tried to build lttng-ust, I ran into >> the same 'Error: selected processor does not support ARM mode `dmb'. >> Taking a look at the userspace-rcu and lttng-ust config.logs, they >> *both* report 'uname -m = armv7l'. The core tests *both* report a build >> system type of 'armv7l-unknown-linux-gnueabi'. However, userspace-rcu >> tests for dmb and finds it, while lttng-ust omits this test. >> >> The make error occurs during the CCLD of libringbuffer.la. >> >> Besides the make, config and configure logs, what should I post here? > > You probably built lttng-ust against a mismatching version of urcu headers. > > Make sure you issue "make clean" in your lttng-ust tree, double-check that > the urcu/config.h header installed in your system (the one used by the > lttng-ust build) has the CONFIG_RCU_ARM_HAVE_DMB define in the correct state > (the one detected by urcu configure). > >Mathieu The system was clean and everything was first-run. I did bootstrap/configure/make/install for userspace-rcu, then the same for lttng-ust (minus the install, of course). Both /usr/local/include/urcu/config.h and /usr/src/userspace-rcu-0.8.0/urcu/config.h have '#define CONFIG_RCU_ARM_HAVE_DMB 1'. So does /usr/src/userspace-rcu-0.8.0/config.h. The only config.h *not* to have that #define is /usr/src/lttng-ust-2.3.0/config.h. Could it be the libringbuffer make used the latter? Daniel U. Thibault Protection des systèmes et contremesures (PSC) | Systems Protection & Countermeasures (SPC) Cyber sécurité pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS) RDDC - Centre de recherches de Valcartier | DRDC - Valcartier Research Centre 2459 route de la Bravoure Québec QC G3J 1X5 CANADA Vox : (418) 844-4000 x4245 Fax : (418) 844-4538 NAC : 918V QSDJ <http://www.travelgis.com/map.asp?addr=918V%20QSDJ> Gouvernement du Canada | Government of Canada <http://www.valcartier.drdc-rddc.gc.ca/> _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
