Here's the result. I think the answer is "yes", but will need to read up on objdump output format.
objdump -t /usr/local/lib/libgnuradio-trellis-3.7.11git.so.0.0.0 | grep _ZN2gr7trellis26viterbi_algorithm_combinedIfhEEviiiRKSt6vectorIiSaIiEES6_RKS2_IS4_SaIS4_EESA_iiiiRKS2_IT_SaISB_EENS_7digital21trellis_metric_type_tEPKSB_PT0_
Returns:
0000000000060aa0 l F .text
0000000000000775 _ZN2gr7trellis26viterbi_algorithm_combinedIfhEEviiiRKSt6vectorIiSaIiEES6_RKS2_IS4_SaIS4_EESA_iiiiRKS2_IT_SaISB_EENS_7digital21trellis_metric_type_tEPKSB_PT0_