zephyr

History

Flavio Ceolin efea1ad398 samples: userspace: Remove unnecessary build options This sample is selecting many things that are not needed, just remove them. Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>		2023-09-18 10:44:04 +01:00
..
src	samples, tests, boards: Switch main return type from void to int	2023-04-14 07:49:41 +09:00
CMakeLists.txt
prj.conf	samples: userspace: Remove unnecessary build options	2023-09-18 10:44:04 +01:00
README.rst
sample.yaml

README.rst

.. _hello_world_user:

Hello World
###########

Overview
********
A simple Hello World example that can be used with any supported board and
prints 'Hello World from UserSpace!' to the console.
If unavailable or unconfigured then 'Hello World from privileged mode.'
is printed instead.

This application can be built into modes:

* single thread
* multi threading

Building and Running
********************

This project outputs 'Hello World from UserSpace!' to the console.
It can be built and executed on QEMU as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/userspace/hello_world_user
   :host-os: unix
   :board: qemu_riscv32
   :goals: run
   :compact:

Sample Output
=============

.. code-block:: console

    Hello World from UserSpace! qemu_riscv32

Exit QEMU by pressing :kbd:`CTRL+A` :kbd:`x`.