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    Compile errors "undefined reference to 'lrintf' for RRF2

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    • jmlundefined
      jml
      last edited by

      If someone has compiled RRF2 before, let me know what the command is right after this:
      Building target: Duet2CombinedFirmware.elf
      Invoking: Cross G++ Linker

      Mine is really long and starts with:
      arm-none-eabi-gcc -L"/Users/.........

      and ends with:
      ....... ./src/ZProbeProgrammer.o -lCoreNG -lFreeRTOS

      I have a feeling the lower case L's arguments are not right, but not sure.

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      • jmlundefined
        jml
        last edited by

        After the "-l" , should it be "CoreNG" and "FreeRTOS"? Or should it be an actual directory to CoreNG and the directory to FreeRTOS?

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        • dc42undefined
          dc42 administrators
          last edited by dc42

          The -L options are the library paths, as set in the Libraries tab in the linked settings. The -l options are the library file names, also set in the Libraries tab.

          The undefined symbols you listed are mostly supplied by the C maths library, which should have been installed with Gnu ARM Developer Tools and should be included by the linker automatically.

          Which versions of Eclipse and Gnu ARM Developer Tools are you using?

          Duet WiFi hardware designer and firmware engineer
          Please do not ask me for Duet support via PM or email, use the forum
          http://www.escher3d.com, https://miscsolutions.wordpress.com

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          • jmlundefined
            jml
            last edited by

            Thank you dc42. On Mac, Eclipse Version: 2020-09 (4.17.0). The arm developer tools thing in my downloads folder is named:
            gcc-arm-none-eabi-6-2017-q2-update

            dc42undefined 1 Reply Last reply Reply Quote 0
            • jmlundefined
              jml
              last edited by jml

              However, when I look in Duet2CombinedFirmware.map, I see a line for llrint with the following text:

              llrint /usr/local/Caskroom/gcc-arm-embedded/7-2018-q2-update/gcc-arm-none-eabi-7-2018-q2-update/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard/libm.a(lib_a-s_llrint.o)

              edit: i was looking at an old file

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              • dc42undefined
                dc42 administrators @jml
                last edited by

                @jml, try using a later version of Gnu ARM Developer Tools, but not the very latest one because that is a new major compiler version. The 2019 q4 version should be about right.

                Duet WiFi hardware designer and firmware engineer
                Please do not ask me for Duet support via PM or email, use the forum
                http://www.escher3d.com, https://miscsolutions.wordpress.com

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                • jmlundefined
                  jml
                  last edited by

                  I have downloaded it and unzipped it. Then in RepRapFirmware Properties, C/C++ Build > Settings > Cross Settings, I changed the path to be to the unzipped folder:
                  /Users/John/Downloads/gcc-arm-none-eabi-9-2019-q4-major
                  (should there be a "/bin" at the end?)

                  However, I get the exact same errors.

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                  • jmlundefined
                    jml
                    last edited by jml

                    Also, should i be making the Cross Settings path to:
                    /Users/John/Downloads/gcc-arm-none-eabi-9-2019-q4-major/bin
                    for CoreNG, FreeRTOS, and RRF? I noticed FreeRTOS had a different path:
                    /usr/local/bin

                    dc42undefined 1 Reply Last reply Reply Quote 0
                    • dc42undefined
                      dc42 administrators @jml
                      last edited by dc42

                      @jml said in Compile errors "undefined reference to 'lrintf' for RRF2:

                      Also, should i be making the Cross Settings path to:
                      /Users/John/Downloads/gcc-arm-none-eabi-9-2019-q4-major/bin
                      for CoreNG, FreeRTOS, and RRF? I noticed FreeRTOS had a different path:
                      /usr/local/bin

                      For all projects except the WiFiServer projects, the files on github set it to {ArmGccPath}. You should not have changed that. ArmGccPath is a build variable set up in Window->Preferences, which you should set to that gcc-arm-none-eabi-9-2019-q4-major/bin folder as per the build instructions.

                      Duet WiFi hardware designer and firmware engineer
                      Please do not ask me for Duet support via PM or email, use the forum
                      http://www.escher3d.com, https://miscsolutions.wordpress.com

                      jmlundefined 1 Reply Last reply Reply Quote 0
                      • jmlundefined
                        jml
                        last edited by

                        Ok they are no all set to gcc-arm-none-eabi-9-2019-q4-major/bin

                        Still the same errors persist. Here is another example error:

                        /Users/John/Downloads/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld: ScaraKinematics.cpp:(.text._ZNK15ScaraKinematics21MotorStepsToCartesianEPKlPKfjjPf+0x7e): undefined reference to `sinf'

                        If I actually go to the paths, I do see the right things in those folders. I'm on Mac by the way, so I wonder if that has anything to do with it?

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                        • jmlundefined
                          jml @dc42
                          last edited by

                          For all projects except the WiFiServer projects, the files on github set it to {ArmGccPath}. You should not have changed that.

                          My bad - i was following old instructions that mentioned setting it to /usr/local/bin

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                          • jmlundefined
                            jml
                            last edited by

                            Anyway, I've tried the new 2019 q4 major update, and it is not improving the results at all. Still lots of the same error like undefined reference to `pow'. Hmmmm

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