Development using Eclipse

Introduction

This guide was originally written for MX-4 T30 with Ångstrom (2018). Parts of it should work for other platform toolchains as well.

Install Eclipse on Ubuntu

- First, [download Eclipse](https://www.eclipse.org/downloads) and the Java runtime if not already installed (default-jre)
    - Install a debugger, if not already installed, e.g. *Eclipse IDE for C/C++ developers*.
    - Optionally install a *Remote System Explorer*
        - Help->Install New Software...-> --All Available Sites-- -> Mobile and Device Development or General Purpose Tools -> Remote System Explorer.

Build a custom software development kit (SDK)

- source layers/openembedded-core/oe-init-build-env
- bitbake console-hostmobility-dev-image -c populate_sdk
- There will be a file output *angstrom-glibc-x86_64-armv7at2hf-neon-v2018.06-toolchain.sh* under deploy/sdk (file name can change over time and depend on target machine).
- Run that script file and follow those instructions.
- Now there should be a sysroot folder, an environment setup file , an site-config and one version file under the install location.
- Run environment-setup-armv7at2hf-neon-angstrom-linux-gnueabi.sh before you start Eclipse to include the environment variables to your project.

Note: For new build toolchains, see SDK guide

Setup hello_word application

- Create a new C or C++ project. Select Empty Project or Hello World template and Cross GCC toolchain.

- Then, in the toolbar, click Project and select Properties from the drop down menu.
    - Navigate to *C/C++ Build --> Settings*

- Within the Tool Settings tab, select [All configurations] from the configurations list. Select Cross GCC Compiler from the Tool Settings menu.
    - For Command, enter: **${CC}**

- Under Cross GCC Compiler, select Miscellaneous.
    - For Other flags, enter: **${CFLAGS} -c**

- Select Cross G++ Compiler from the Tool Settings menu.
    - For Command, enter: **${CXX}**

- Under Cross G++ Compiler, select Miscellaneous.
    - For Other flags, enter: **${CXXFLAGS} -c**

- Select Cross G++ Linker from the Tool Settings menu.
    - For Command, enter: **${CXX}**

- Under Cross G++ Linker, select Miscellaneous.
    - For Linker flags, enter: **${LDFLAGS}**

- Select Cross GCC Assembler from the Tool Settings menu.
    - For Command, enter: **${AS}**

- Other environment variables can be found in the *environment-setup-armv7at2hf-neon-angstrom-linux-gnueabi* file.

- For more information, check out `Toradex Guide <https://developer.toradex.com/getting-started/module-2-my-first-hello-world-in-c?som=apalis-imx6&board=apalis-evaluation-board>` 
- and `Toradex Guide <https://developer.toradex.com/knowledge-base/linux-sdks>`.

Set up machine debugger

- First Run->Debug configurations...->c/c++ remote application->add (right click).
- Change connection to your machine.
    - ssh root@192.168.1.200 is default (eth0) for MX-4.
    - Test it with browse and change path to where you want it to execute.
- Under debugger->change main->gdb debugger to `arm-angstrom-linux-gnueabi-gdb`.
- **tip** Add one debug and one Release (run configurations)