选择modbus这个Tina自带的第三方库，烧录后没有libmodbus.so这个动态库，find命令查找后只有libmodbus.contrl和libmodbus.list这2个文件
root@TinaLinux:/# find . -name "*modbus*"
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbus_symbols_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusadu_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusclient_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbuscommevent_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusdevice_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusrtuserialmaster_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusrtuserialslave_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusserver_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbustcpclient_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbustcpserver_p.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusclient.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusdataunit.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusdevice.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusdeviceidentification.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbuspdu.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusreply.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusrtuserialmaster.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusrtuserialslave.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbusserver.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbustcpclient.h
./rom/usr/lib/arm-qt/include/QtSerialBus/qmodbustcpserver.h
./rom/usr/lib/opkg/info/libmodbus.control
./rom/usr/lib/opkg/info/libmodbus.list
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbus_symbols_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusadu_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusclient_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbuscommevent_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusdevice_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusrtuserialmaster_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusrtuserialslave_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbusserver_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbustcpclient_p.h
./usr/lib/arm-qt/include/QtSerialBus/5.12.9/QtSerialBus/private/qmodbustcpserver_p.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusclient.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusdataunit.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusdevice.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusdeviceidentification.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbuspdu.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusreply.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusrtuserialmaster.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusrtuserialslave.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbusserver.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbustcpclient.h
./usr/lib/arm-qt/include/QtSerialBus/qmodbustcpserver.h
./usr/lib/opkg/info/libmodbus.control
./usr/lib/opkg/info/libmodbus.list
root@TinaLinux:/# cd usr/
root@TinaLinux:/usr# find . -name "libm*.so*"
./lib/arm-qt/lib/libm.so.6
./lib/arm-qt/qml/QtQml/Models.2/libmodelsplugin.so
./lib/libmenuw.so
./lib/libmenuw.so.5
./lib/libmenuw.so.5.9
root@TinaLinux:/usr# find . -name "libm*"
./lib/arm-qt/lib/libm.so.6
./lib/arm-qt/qml/QtQml/Models.2/libmodelsplugin.so
./lib/libmenuw.so
./lib/libmenuw.so.5
./lib/libmenuw.so.5.9
./lib/opkg/info/libmodbus.control
./lib/opkg/info/libmodbus.list
./lib/opkg/info/libmymath.control
./lib/opkg/info/libmymath.list