$ objdump -d pg_wait_sampling.so | grep -i 'call.*compat'    3e4c:e8 8f f7 ff ff       callq  35e0 <shm_mq_detach_compat@plt>    47b4:e8 97 ef ff ff       callq  3750 <CreateTemplateTupleDescCompat@plt>    4ca4:e8 37 e9 ff ff       callq  35e0 <shm_mq_detach_compat@plt>    4f01:e8 4a e8 ff ff       callq  3750 <CreateTemplateTupleDescCompat@plt>    5282:e8 c9 e4 ff ff       callq  3750 <CreateTemplateTupleDescCompat@plt>    5b52:e8 89 da ff ff       callq  35e0 <shm_mq_detach_compat@plt>    5c51:e8 0a da ff ff       callq  3660 <shm_mq_send_compat@plt>    5caa:e8 b1 d9 ff ff       callq  3660 <shm_mq_send_compat@plt>    5d17:e8 44 d9 ff ff       callq  3660 <shm_mq_send_compat@plt>    5d48:e8 13 d9 ff ff       callq  3660 <shm_mq_send_compat@plt>

% otool -tV pg_wait_sampling.so | grep -i 'call.*compat'0000000000001a72callq_CreateTemplateTupleDescCompat0000000000001eabcallq_CreateTemplateTupleDescCompat000000000000231bcallq_shm_mq_detach_compat00000000000024fdcallq_CreateTemplateTupleDescCompat0000000000002778callq_shm_mq_detach_compat0000000000002a5bcallq_shm_mq_detach_compat0000000000002f74callq_shm_mq_send_compat00000000000030a9callq_shm_mq_send_compat0000000000003123callq_shm_mq_send_compat0000000000003188callq_shm_mq_send_compat