/tmp/ccWhKncg.o: In function `pz_sched_exit_task':
/home/hhseo/dpdk-test/pretzel/native/_cov/pretzel_sched.c:52: undefined reference to `pz_sched_restore_archctx'
/tmp/ccWhKncg.o: In function `pz_sched_do_schedule':
/home/hhseo/dpdk-test/pretzel/native/_cov/pretzel_sched.c:94: undefined reference to `pz_sched_switch_archctx'
/tmp/ccWhKncg.o: In function `pz_sched_yield':
/home/hhseo/dpdk-test/pretzel/native/_cov/pretzel_sched.c:418: undefined reference to `pz_sched_switch_archctx'
collect2: error: ld returned 1 exit status