multiarch-azure-iot-c

A multiarch container with a sample that connects to Azure IoTHub in C

Build

$ ./build.sh

Run

$ docker run -it --rm multiarch-azure-iot-c:x86_64

Debug

Launch the docker container in a terminal with the following command

$ docker run -it --rm -v /Users/seank/Development/multiarch-azure-iot-c/sample:/src/sample2 -p 9090:9090 --cap-add=SYS_PTRACE --security-opt seccomp=unconfined multiarch-azure-iot-c:dev /bin/bash

Edit CMakeLists.txt to add the -ggdb flag to the compiler

From the bash shell in the container build the project and launch the debug server

$ cd ../sample2/
$ mkdir bin
$ cd bin
$ cmake ../
$ make
$ gdbserver :9090 ./sample_app 

Goto Debug tab in VS Code and select C++ Launch from the drop down and press Start Debugging

Setup host debugging for VS Code

1. Install gdb

   $ brew install gdb --with-all-targets

2. Open Keychain Access
3. In the menu, open Keychain Access > Certificate Assistant > Create a certificate
4. Give it the name gdbc
   • Identity type: Self Signed Root
   • Certificate type: Code Signing
   • Check: let me override defaults
5. Continue until it prompts you for: "Please specify a keychain where the certificate will be stored."
6. Set Keychain: to System
7. Create a certificate and close assistant.
8. Find the certificate in System keychains, right click it > get info (or just double click it)
9. Expand Trust, set Code signing to always trust
10. Close and Update
11. Finally, restart taskgated and sign from terminal:

    $ sudo killall taskgated
    $ sudo codesign -fs gdbc /usr/local/bin/gdb