Linker error when building mDot application using mbed-cli

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  • August 1, 2018 at 4:29 pm #25850
    Ajay K
    Participant

    The mDot application builds fine in the online compiler, however I don’t believe I can generate a release build in the online compiler. So i published my application that is private and imported the application using mbed-cli and ran the following compilation command.

    mbed compile -m MTS_MDOT_F411RE -t GCC_ARM -c –profile mbed-os/tools/profiles/release.json

    I am getting linker error when attempting to build the mDot application firmware using mbed-cli. I am using libmdot 3.0 production library, mbed-os 5.4.7. Below is part of the linker error I get:

    Link: mTestRadioNode
    ./BUILD/MTS_MDOT_F411RE/GCC_ARM/mTestLib/Common/TestLora.o: In function `mDotEvent::PacketRx(unsigned char, unsigned char*, unsigned short, short, signed char, lora::DownlinkControl, unsigned char, unsigned char)’:
    TestLora.cpp:(.text._ZN9mDotEvent8PacketRxEhPhtsaN4lora15DownlinkControlEhh[_ZN9mDotEvent8PacketRxEhPhtsaN4lora15DownlinkControlEhh]+0x62): undefined reference to `mts::Text::bin2hexString[abi:cxx11](unsigned char const*, unsigned long, char const*, bool, bool)’
    ./BUILD/MTS_MDOT_F411RE/GCC_ARM/mTestLib/Common/TestLora.o: In function `Test::TestLora::ResetLoraSettings()’:
    TestLora.cpp:(.text._ZN5Test9TestLora17ResetLoraSettingsEv+0x9c): undefined reference to `mDot::getReturnCodeString[abi:cxx11](long const&)’
    TestLora.cpp:(.text._ZN5Test9TestLora17ResetLoraSettingsEv+0xe0): undefined reference to `mDot::getReturnCodeString[abi:cxx11](long const&)’

    I am guessing this is because the libmDot-mbed5 is not getting built. Do i have to anything specific to include this part of the build process when building it offline?

    Thanks,
    Ajay

    August 8, 2018 at 6:02 pm #25970
    Ajay K
    Participant

    Any thoughts on why the linker errors occur. Most of the other platforms I don’t have to do anything extra to get it to build in mbed-cli. I imported the application after I published it in private mode and running the compile command results in linker error.

    Thanks,
    Ajay

    August 8, 2018 at 6:53 pm #25971
    Jason Reiss
    Keymaster

    Can you share an example project via github demonstrating the issue?

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