From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel.Thibault@drdc-rddc.gc.ca (Thibault, Daniel) Date: Fri, 22 Nov 2013 15:46:15 +0000 Subject: [lttng-dev] liburcu error: Cannot find -lurcu Message-ID: <48CF5AC71E61DB46B70D0F388054EFFD267A58A5@VAL-E-01.valcartier.drdc-rddc.gc.ca> > I edited the log to show only the error. The detailed log is : Copy-writer's tip: when omitting irrelevant parts from a log (or conversation quote), indicate the omission with an ellipsis (e.g. '(...)' or '[...]'). > $ make > make all-recursive > [...] > CC wfstack.lo > CCLD liburcu-common.la > CC urcu.lo That's the line that creates liburcu.so. It seems to succeed, albeit with a number of warnings. > In file included from urcu.c:530: > urcu-call-rcu-impl.h: In function 'alloc_cpu_call_rcu_data': > urcu-call-rcu-impl.h:150: warning: implicit declaration of function 'rpl_malloc' > urcu-call-rcu-impl.h:150: warning: assignment makes pointer from integer without a cast > [...] > CC urcu-pointer.lo > [...] > make -f Makefile.cds_hlist_add_head_rcu > make[6]: Entering directory > `/home/kumar/userspace/userspace-rcu/doc/examples/hlist' > cc -g -O2 -Wall -I../../../urcu/ -I../../../ -g -O2 \ > -c -o cds_hlist_add_head_rcu.o cds_hlist_add_head_rcu.c cc -g -O2 -Wall -g -O2 -L../../../.libs/ -Wl,-rpath="/home/kumar/userspace/userspace-rcu/doc/examples/../../.libs/" \ > -o cds_hlist_add_head_rcu cds_hlist_add_head_rcu.o -lurcu > /usr/bin/ld: skipping incompatible ../../../.libs//liburcu.so when searching for -lurcu But when we get here and try to use liburcu.so for the first time, it turns out to be "incompatible". > /usr/bin/ld: skipping incompatible ../../../.libs//liburcu.a when searching for -lurcu > /usr/bin/ld: cannot find -lurcu > collect2: ld returned 1 exit status > make[6]: *** [cds_hlist_add_head_rcu] Error 1 > [...] Except for the warnings, your make log matches mine up to the fatal liburcu.so incompatibility error. Could the compiler be misconfigured? Try making a small test .so and application pair. Daniel U. Thibault Protection des syst?mes et contremesures (PSC) | Systems Protection & Countermeasures (SPC) Cyber s?curit? pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS) R & D pour la d?fense Canada - Valcartier (RDDC Valcartier) | Defence R&D Canada - Valcartier (DRDC Valcartier) 2459 route de la Bravoure Qu?bec QC G3J 1X5 CANADA Vox : (418) 844-4000 x4245 Fax : (418) 844-4538 NAC : 918V QSDJ Gouvernement du Canada | Government of Canada