ewertons
commented
6 years ago Hi @mamungm , for some reason your application is not linking dl. If you see here, it can be linked passing -ldl to the compiler.
Since we haven't seen that error before, that tells me that issue might not be directly related to the Azure ioT SDK, but to the dependency (openssl), as it might not have the proper lib linked.
When you run the cmake as you did above, could you try this way:
cmake -Duse_openssl:BOOL=ON -DOPENSSL_ROOT_DIR:PATH=/home/mamun/Desktop/azure/openssl-1.0.2o -DcompileOption_C="-ldl" ..
az-iot-builder-01
OS and version used: Ubuntu 18.04.1 LTS
SDK version used: 1.2.8
Hi, I am facing the below problem
[ 80%] Building C object iothub_client/samples/iothub_ll_client_x509_sample/CMakeFiles/iothub_ll_client_x509_sample.dir////certs/certs.c.o cd /home/mamun/Desktop/azure/azure-iot-sdk-c/cmake/iothub_client/samples/iothub_ll_client_x509_sample && /usr/bin/cc -DARCHITECTURE_x86_64=1 -DSET_TRUSTED_CERT_IN_SAMPLES -DUSE_AMQP -DUSE_HTTP -DUSE_MQTT -I/home/mamun/Desktop/azure/azure-iot-sdk-c/c-utility/inc -I/home/mamun/Desktop/azure/azure-iot-sdk-c/c-utility/pal/linux -I/home/mamun/Desktop/azure/azure-iot-sdk-c/iothub_client/../deps/parson -I/home/mamun/Desktop/azure/azure-iot-sdk-c/deps/uhttp/deps/c-utility/inc -I/home/mamun/Desktop/azure/azure-iot-sdk-c/iothub_client/inc -I/home/mamun/Desktop/azure/azure-iot-sdk-c/iothub_client/inc/internal -I/home/mamun/Desktop/azure/azure-iot-sdk-c/uamqp/inc -I/home/mamun/Desktop/azure/azure-iot-sdk-c/umqtt/inc -I/home/mamun/Desktop/azure/azure-iot-sdk-c/certs -I/home/mamun/Desktop/azure/azure-iot-sdk-c/iothub_client/samples/iothub_ll_client_x509_sample/. -fPIC -Werror -std=gnu99 -o CMakeFiles/iothub_ll_client_x509_sample.dir////certs/certs.c.o -c /home/mamun/Desktop/azure/azure-iot-sdk-c/certs/certs.c [ 80%] Linking C executable iothub_ll_client_x509_sample cd /home/mamun/Desktop/azure/azure-iot-sdk-c/cmake/iothub_client/samples/iothub_ll_client_x509_sample && /usr/bin/cmake -E cmake_link_script CMakeFiles/iothub_ll_client_x509_sample.dir/link.txt --verbose=1 /usr/bin/cc -fPIC -Werror -rdynamic CMakeFiles/iothub_ll_client_x509_sample.dir/iothub_ll_client_x509_sample.c.o CMakeFiles/iothub_ll_client_x509_sample.dir///__/certs/certs.c.o -o iothub_ll_client_x509_sample ../../libiothub_client.a ../../../c-utility/libaziotsharedutil.a ../../libiothub_client_http_transport.a -lcurl ../../libiothub_client_amqp_transport.a ../../../uamqp/libuamqp.a ../../../c-utility/libaziotsharedutil.a ../../libiothub_client_mqtt_transport.a ../../../umqtt/libumqtt.a ../../libiothub_client_amqp_ws_transport.a ../../libiothub_client_mqtt_ws_transport.a ../../../umqtt/libumqtt.a ../../../libparson.a ../../../c-utility/libaziotsharedutil.a -lcurl /home/mamun/Desktop/azure/openssl-1.0.2o/libssl.a /home/mamun/Desktop/azure/openssl-1.0.2o/libcrypto.a -lpthread -lm -lrt -luuid /usr/bin/x86_64-linux-gnu-ld: /home/mamun/Desktop/azure/openssl-1.0.2o/libcrypto.a(dso_dlfcn.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5' //lib/x86_64-linux-gnu/libdl.so.2: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status iothub_client/samples/iothub_ll_client_x509_sample/CMakeFiles/iothub_ll_client_x509_sample.dir/build.make:138: recipe for target 'iothub_client/samples/iothub_ll_client_x509_sample/iothub_ll_client_x509_sample' failed make[2]: [iothub_client/samples/iothub_ll_client_x509_sample/iothub_ll_client_x509_sample] Error 1 make[2]: Leaving directory '/home/mamun/Desktop/azure/azure-iot-sdk-c/cmake' CMakeFiles/Makefile2:1649: recipe for target 'iothub_client/samples/iothub_ll_client_x509_sample/CMakeFiles/iothub_ll_client_x509_sample.dir/all' failed make[1]: [iothub_client/samples/iothub_ll_client_x509_sample/CMakeFiles/iothub_ll_client_x509_sample.dir/all] Error 2 make[1]: Leaving directory '/home/mamun/Desktop/azure/azure-iot-sdk-c/cmake' Makefile:143: recipe for target 'all' failed make: *** [all] Error 2
I am trying to buil the "iothub_ll_client_x509_sample" with a custom downloaded folder of openssl. First I downloaded openssl code. It is in the directory "/home/mamun/Desktop/azure/openssl-1.0.2o". I configured it and build. There is .a and .so build. Now I am trying to build the sample application with command of cmake cmake -Duse_openssl:BOOL=ON -DOPENSSL_ROOT_DIR:PATH=/home/mamun/Desktop/azure/openssl-1.0.2o ..
cmake executes successfully. Then I issue "cmake --build ." command and it compiles and then links to create the sample application. After running 80% I am getting the above error. Please help in this regard.