This application note describes how to use Eclipse for building and debugging applications for Emcraft Cortex‑M BSPs.

You will need a Linux version of Eclipse IDE installed on you Linux development host.
Go to https://www.eclipse.org/downloads/eclipse-packages/ and select the latest version of Eclipse IDE for C/C++ Developers. At the moment of writing, the current version is the "Oxygen" release. Download and install Eclipse to your host.

Adding a Project to Eclipse

Here is how to create a single file project in Eclipse.

• Start Eclipse and select a workspace directory. The workspace directory is an arbitrary directory, different from the directory where your source file is located.
• Create an empty project, open File -> New -> C Project, choose С/C++ -> C Project and click Next:

• Enter the name of the project, for example, c-example and click Next.

• On the next screen you will be prompted to choose build configurations. Leave all defaults and click Next to proceed.
• On the next screen, enter arm-v7-linux-uclibceabi- as a Cross compiler prefix and
  /usr/local/arm-v7-linux-uclibceabi/bin as a Cross compiler path:

• Click Finish.
• Add your source file to the project, open File -> Import, select File System:

• Click Next, and, using Browse, navigate to the directory with your source file.Select the directory in the left window,
  this will add its content to the project:

• Click Finish.

Creating Build Configuration and Building the Project

Now, we need to instruct Eclipse on how to build the project for the Cortex‑M3/M4 target.

• Right-click on the just created project and select Properties. Navigate to C/C++ Build->Environment.
• Click Add and add the INSTALL_ROOT variable as the root of your Emcraft BSP directory:

• Edit the PATH variable and prepend the existing PATH with
  ${INSTALL_ROOT}/tools/bin:${INSTALL_ROOT}/tools/arm-v7-linux-uclibceabi/bin (note the colon at the end):

• Click Apply.
• Navigate to Settings.
• In the Tool Settings tab on the right, select Include paths:

• Click on the + button and enter the include the path ${INSTALL_ROOT}/A2F/root/usr/include, click Ok when done:

• Navigate to Miscellaneous and add -static to Other flags:

• In the same window, navigate to Cross GCC Linker -> Library search path:

• Click on the + button and enter the library search path ${INSTALL_ROOT}/A2F/root/usr/lib:

• Navigate to Miscellaneous and add -static to Linker flags, click Apply and Close when done:

• To build the project, press Ctrl-B.

• Open Run -> Debug Configurations:

• Create a new configuration in C/C++ Remote Application by clicking + in the upper left part of the dialogue:

• In the Main tab, change the Using GDB Autimatic Remote Debugging Launcher: click to Select other... and choose Manual Remote Debugging Launcher:

• Now, switch to the Debugger tab and change gdb to arm-v7-linux-uclibceabi-gdb:

• Select the Connection tab and enter an IP address of you target, and gdbserver connection port:

• Click Apply (don't click on Debug yet!).

Click to enlarge

When started under remote debugger, the program automatically stops at the main() function.

Now you can execute you program with steps, put breakpoints, and examine variables:

Click to enlarge