C/C++ Development - Unable to start application from toradex extension for VSCODE

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Hi @geopaxpvtltd ,

I have tried to manually copy the headers from /usr/include to the project/includes folder but it seems unnatural and gives other errors.

Can you provide any pointers? I have tried adding libserial-dev into deps.json in the .conf folder and torizonPackages.json in the app folder.

In order to add an external library to your ApolloX project you have to add it to your SDK container and in your debug/release container as well. For instance, in order to add LibSerial you have to change the following files:

  • Dockerfile.sdk: Add libserial-dev:arm64 in the apt-get install command, similar to this:
# __deps__
RUN apt-get -q -y update && \
    apt-get -q -y install \
    # ADD YOUR PACKAGES HERE
    libserial-dev:arm64 \
    && \
    apt-get clean && apt-get autoremove && \
    rm -rf /var/lib/apt/lists/*
# __deps__
  • Dockerfile.debug (debug container) and Dockerfile (release container): Similar to above, add libserial-dev or libserial1 to the apt-get install command.

You also have to include the library flag to your Makefile, as otherwise you’ll get the undefined reference errors. To do this add -lserial to LDFLAGS in your Makefile:

LDFLAGS := -lserial

Once that’s done you can try to compile and deploy your program. You can ignore any include errors related to your library, as it will be installed in the containers.

With the steps above I was able to successfully run on ApolloX this sample code from the LibSerial repository: https://github.com/crayzeewulf/libserial/blob/master/examples/serial_port_read.cpp

EDIT: For the code above I also had to add /dev/ttyUSB0 as a device in docker-compose.yml:

    devices:
      - "/dev/ttyUSB0:/dev/ttyUSB0"

As for the V1 issues, if devpackages has libserial-dev:arm64 and extrapackages has libserial1 or libserial-dev then the problem can be a linking issue similar to the one you faced before. I don’t know for sure how to do this with CMake, but try to find an equivalent option to the -lserial Makefile flag I mentioned above.

Hope this helps you.

Best regards,
Lucas Akira

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