Hi Damjan, On 6/21/2016 4:01 PM, Damjan Marion (damarion) wrote: > > Hello, > > We just spent few hours troubleshooting why vPMD is not working > in i40e driver. Conclusion was that problem is caused by linker > linking the wrong instance of the i40e_rx_vec_dev_conf_condition_check(...). > > That function is defined 2 times, once in i40e_rxtx.c and once in > i40e_rxtx_vec.c. First one is defined as weak and it just returns -1. > > librte_pmd_i40e.a contains both versions: > > $ objdump -x librte_pmd_i40e.a| grep i40e_rx_vec_dev_conf_condition_check > 0000000000006ca0 w F .text 0000000000000006 > i40e_rx_vec_dev_conf_condition_check > 00000000000007c1 g F .text.unlikely 000000000000001c > i40e_rx_vec_dev_conf_condition_check > > However when we are linking our app, linker was picking 1st (weak) one and > vPMD init was failing. App is linking with correct instance of the function for me, how can I reproduce this linkage issue?
> > Workaround we applied to get int working: -Wl,--whole-archive <LIBS> > -Wl,?no-whole-archive These flags already wraps PMD libraries, can you please give more detail about workaround? Thanks, ferruh
