Linker Errors when Compile custom firmware with latest MDOT Library.

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  • July 14, 2020 at 5:13 pm #30944
    Tom Hill
    Participant

    I get the following linker errors when attempting to compile my custom firmware using the MBED CLI tool and against the libmdot-mbed5 version 3.3.5 and mbed-os-5.15.1. I don’t get any errors when compiling using the libmdot-mbed5 version 3.1.0 and mbed-os-5.7.7. Any ideas as to why I would get the linker errors below?

    BUILD/MTS_MDOT_F411RE/GCC_ARM/mbed-os/rtos/source/TARGET_CORTEX/TOOLCHAIN_GCC_ARM/mbed_boot_gcc_arm.o: In function__wrap_main’:
    E:\Arm\TestMDot/.\mbed-os\rtos\source\TARGET_CORTEX\TOOLCHAIN_GCC_ARM/mbed_boot_gcc_arm.c:77: undefined reference to `main’
    collect2.exe: error: ld returned 1 exit status
    [ERROR] BUILD/MTS_MDOT_F411RE/GCC_ARM/mbed-os/rtos/source/TARGET_CORTEX/TOOLCHAIN_GCC_ARM/mbed_boot_gcc_arm.o: In function `__wrap_main’:
    E:\Arm\TestMDot/.\mbed-os\rtos\source\TARGET_CORTEX\TOOLCHAIN_GCC_ARM/mbed_boot_gcc_arm.c:77: undefined reference to `main’
    collect2.exe: error: ld returned 1 exit status

    [mbed] ERROR: “c:\python27\python.exe” returned error code 1.
    [mbed] ERROR: Command “c:\python27\python.exe -u E:\Arm\TestMDot\mbed-os\tools\make.py -t GCC_ARM -m MTS_MDOT_F411RE –profile mbed-os/tools/profiles/release.json –source . –build .\BUILD\MTS_MDOT_F411RE\GCC_ARM” in “E:\Arm\TestMDot”`

    Thanks,
    Yogesh

    July 15, 2020 at 2:13 am #30945
    Tom Hill
    Participant

    Sorry false alarm, the linker error was because the main.cpp was missing :). My Bad!!!

    Thanks,
    Yogesh

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