Gld doesn’t know that e.g. vpp_api.o needs e.g. format until after it’s already processed -lvppinfra. Reorder the command line.
From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On Behalf Of Samuel S Sent: Monday, December 11, 2017 2:05 AM To: vpp-dev@lists.fd.io Subject: [vpp-dev] undefined refrence to Hi, Finally i can write something that can be built (i think). but i have some issue. i include api_common.h, api_helper_macro.h and vat_helper_marcors.h but i can't make it and compiler says: /***********************************************************/ gcc -Wall -I/usr/include -I/usr/include/vpp_plugins -lvlibmemoryclient -lsvm -lvppinfra -lvlib -lvatplugin -lpthread -lm -lrt -ldl -lcrypto vpp_api.o main.o -o test vpp_api.o: In function `vpp_nat_init': vpp_api.c:(.text+0x3be): undefined reference to `format' vpp_api.c:(.text+0x3ce): undefined reference to `vl_client_get_first_plugin_msg_id' vpp_api.c:(.text+0x405): undefined reference to `vl_noop_handler' vpp_api.c:(.text+0x420): undefined reference to `vl_msg_api_set_handlers' vpp_api.o: In function `vpp_connect': vpp_api.c:(.text+0x44f): undefined reference to `vl_client_connect_to_vlib' vpp_api.c:(.text+0x458): undefined reference to `svm_region_exit' vpp_api.c:(.text+0x466): undefined reference to `api_main' main.o: In function `api_snat_interface_dump': main.c:(.text+0x29f): undefined reference to `vl_msg_api_alloc_as_if_client' main.c:(.text+0x2fb): undefined reference to `vl_msg_api_send_shmem' main.c:(.text+0x307): undefined reference to `vat_time_now' main.c:(.text+0x360): undefined reference to `vat_suspend' main.c:(.text+0x36c): undefined reference to `vat_time_now' collect2: error: ld returned 1 exit status makefile:20: recipe for target 'main' failed make: *** [main] Error 1 /**************************************************/ vpp_api.h<http://dpaste.com/0TVSNCR> vpp_api.c<http://dpaste.com/0G05C6Q> main.c<http://dpaste.com/0KA3GRC> makefile<http://dpaste.com/27JE7HV>
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