This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Debug with Arm DS

Install Arm DS

Please refer to the official Arm Development Studio Page 1 for details. Here Version: 2020.b Build: 2020110909 is used in the following example.

Arm DS Version

Download Arm FVP BaseR AEMv8-R

Please refer to official FVP page 2 for download instructions. Here $FVP_D is used to indicate which directory is FVP located.

Use DS perspective

From menu choose Window -> Perspective -> Open Perspective -> Other...:

Arm DS Perspective choose Other...

In the opened window, choose Development Studio (default):

Arm DS Perspective choose DS

Create a new configuration database

Create a new configuration database by selecting File -> New -> Other... -> Configuration Database:

Arm DS create new configuration database

Choose a name for the database. Here Zephyr is used:

Arm DS create new configuration database: choose database name

Click Finish and the new configuration database can be seen in Project Explorer:

Arm DS create new configuration database: shown in project explorer

Create a new model configuration

Right click Zephyr in Project Explorer, choose New -> Model Configuration:

Arm DS create new model configuration

In the opened window:

  1. Choose Iris for Model Interface, then Next >.

  2. Choose Launch and connect to specific model, then Next >.

  3. Set Model Path to $FVP_D/FVP_BaseR_AEMv8R, then Finish.

Arm DS create new model configuration: set model path

Then in FVP_BaseR_AEMv8R tab, change ARMAEMv8-R_ to V8R64-Generic, click Save and then click Import:

Arm DS create new model configuration: import

Create a new launch configuration

From Project Explorer, right click FVP_BaseR_AEMv8R and select Debug as -> Debug configurations...:

Arm DS create new launch configuration: context menu

Select Generic Arm C/C++ Application and click New launch configuration button. A new configuration named New_configuration will be created.

  1. In Connection tab:

    • In Select target box, select Imported -> FVP_BaseR_AEMv8R -> Bare Metal Debug -> ARMAEMv8-R_MP_0

    • In Connections box, set Model parameters to:

      -C bp.dram.enable_atomic_ops=1 -C bp.sram.enable_atomic_ops=1 -C bp.refcounter.non_arch_start_at_default=1 -C gic_distributor.GICD_CTLR-DS-1-means-secure-only=1 -C gic_distributor.has-two-security-states=0 -C bp.vis.disable_visualisation=1 -C cluster0.has_aarch64=1 -a /home/fengqi/zephyrproject/build/zephyr/zephyr.elf

      These parameters are passed to FVP_BaseR_AEMv8R when launches. Run FVP_BaseR_AEMv8R --help to see all command line options. Run FVP_BaseR_AEMv8R --list-params to see all supported parameters. The file zephyr.elf specified by -a is the binary built from Zephyr.

Arm DS create new launch configuration: connection

  1. In Files tab:

    In Files box, set Load symbols from file to full path of zephyr.elf that you built.

Arm DS create new launch configuration: files

  1. In Debugger tab:

    • In Run control box, check Execute debugger commands and insert:

      add-symbol-file "/home/fengqi/zephyrproject/build/zephyr/zephyr.elf" EL1S:0

      Replace /home/fengqi/zephyrproject/build/zephyr/zephyr.elf with your local path.

    • In Paths box, set Source search directory to the path to Zephyr source code.

Arm DS create new launch configuration: debugger

After all these changes are made, click Apply, then click Debug. DS will launch FVP_BaseR_AEMv8R and connect to it. You can see a new session is connected in Debug Control window.

Arm DS working