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TMS320F28377D: Unresolved symbols error but symbol name is not part of the error message

Madhumitha Anandan
Prodigy 20 points
Part Number: TMS320F28377D
Other Parts Discussed in Thread: C2000WARE

Hello Experts,

I have been working on modifying my project to use the register-based approach instead of the API approach.

I have encountered the following error on building:


**** Build of configuration Debug for project HeliSAS_proto ****

"C:\\ti\\ccs1040\\ccs\\utils\\bin\\gmake" -k -j 4 all -O

Building target: "HeliSAS_proto.out"
Invoking: C2000 Linker
"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-c2000_20.2.5.LTS/bin/cl2000" -v28 -ml -mt --cla_support=cla1 --float_support=fpu64 --tmu_support=tmu0 --vcu_support=vcu2 --advice:performance=all --define=CPU1 --define=_FLASH -g --diag_warning=225 --diag_wrap=off --display_error_number --abi=eabi -z -m"HeliSAS_proto.map" --stack_size=0x200 --warn_sections -i"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-c2000_20.2.5.LTS/lib" -i"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-c2000_20.2.5.LTS/include" --reread_libs --diag_wrap=off --display_error_number --xml_link_info="HeliSAS_proto_linkInfo.xml" --rom_model -o "HeliSAS_proto.out" "./CoreSoftware/ARINC.obj" "./CoreSoftware/F2837xD_Adc.obj" "./CoreSoftware/F2837xD_CpuTimers.obj" "./CoreSoftware/F2837xD_DefaultISR.obj" "./CoreSoftware/F2837xD_Dma.obj" "./CoreSoftware/F2837xD_ECap.obj" "./CoreSoftware/F2837xD_EPwm.obj" "./CoreSoftware/F2837xD_EQep.obj" "./CoreSoftware/F2837xD_Emif.obj" "./CoreSoftware/F2837xD_GlobalVariableDefs.obj" "./CoreSoftware/F2837xD_Gpio.obj" "./CoreSoftware/F2837xD_I2C.obj" "./CoreSoftware/F2837xD_Ipc.obj" "./CoreSoftware/F2837xD_Ipc_Driver.obj" "./CoreSoftware/F2837xD_Ipc_Driver_Lite.obj" "./CoreSoftware/F2837xD_Ipc_Driver_Util.obj" "./CoreSoftware/F2837xD_Mcbsp.obj" "./CoreSoftware/F2837xD_PieCtrl.obj" "./CoreSoftware/F2837xD_PieVect.obj" "./CoreSoftware/F2837xD_Sci.obj" "./CoreSoftware/F2837xD_Spi.obj" "./CoreSoftware/F2837xD_SysCtrl.obj" "./CoreSoftware/F2837xD_TempSensorConv.obj" "./CoreSoftware/F2837xD_Upp.obj" "./CoreSoftware/F2837xD_can.obj" "./CoreSoftware/F2837xD_sci_io.obj" "./CoreSoftware/F2837xD_sdfm_drivers.obj" "./CoreSoftware/F2837xD_struct.obj" "./CoreSoftware/SpiDrv.obj" "./CoreSoftware/main.obj" "./CoreSoftware/norFlash.obj" "./CoreSoftware/parallelBus.obj" "./LibSource/qsinlt/qsinlt.obj" "./LibSource/sintb360/sintb360.obj" "../2837xS_FLASH_lnk.cmd" "../F2837xD_Headers_nonBIOS_cpu1.cmd" -llibc.a
<Linking>

undefined first referenced
symbol in file
--------- ----------------
error ./CoreSoftware/main.obj

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "HeliSAS_proto.out" not built

>> Compilation failure
makefile:181: recipe for target 'HeliSAS_proto.out' failed
gmake[1]: *** [HeliSAS_proto.out] Error 1
makefile:177: recipe for target 'all' failed
gmake: *** [all] Error 2

**** Build Finished ****

The error summary above does not indicate the names of the missing symbol(s). How do I go about debugging this issue?

I started the project from scratch and included library files from under C2000Ware_3_04_00_00. 

I am unable to post the code as the project has too many files.

  • +1
    Guru 92251 points
    Madhumitha Anandan said:
    undefined first referenced
    symbol in file
    --------- ----------------
    error ./CoreSoftware/main.obj

    The shows that the symbol named error is undefined, and first referenced from the source file CoreSoftware/main.c

    Looking at a C2000Ware example the C2000Ware_3_04_00_00_Software/device_support/f2837xd/examples/cpu1/blinky_with_DCSM/cpu01/blinky_cpu01.c source file which contains the main() function had an error function:

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    //
    // error - Error checking
    //
    void
    error(void)
    {
    __asm(" ESTOP0"); // Test failed!! Stop!
    for (;;);
    }
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

    I suspect that is what missing from your code.

  • +1 in reply to Chester Gillon
    TI__Mastermind 34605 points

    Yes, looks like the "error" function is missing from your code which is causing this error. 

    Best Regards

    Siddharth

  • 0 in reply to Chester Gillon
    Prodigy 20 points

    Thanks! It really slipped my mind that "error" could be the missing symbol that was captured in the error message. You also helped me in identifying that function and adding it to my code. The error is resolved.

  • +1 in reply to Siddharth Deshpande
    Prodigy 20 points

    Thanks for enlightening me. "Error" being the error completely slipped my mind.