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Carlo Caione 74a942e673 barriers: Introduce barrier operations
Introduce a new API for barrier operations starting with a general
skeleton and the implementation for barrier_data_memory_fence_full().

Select a built-in or an arch-based implementation according to new
Kconfig symbols CONFIG_BARRIER_OPERATIONS_BUILTIN and
CONFIG_BARRIER_OPERATIONS_ARCH.

The built-in implementation falls back on the compiler built-in
function using __ATOMIC_SEQ_CST as it is done for the atomic APIs
already.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2023-05-24 13:13:57 -04:00
.github ci: do_not_merge: check for TSC tag as well 2023-05-16 14:57:51 -04:00
arch arch: x86: ia32: don't create FP context for NULL thread 2023-05-24 12:41:06 -04:00
boards boards: arm: nucleo_c031c6: Add I2C to board dts 2023-05-24 16:40:07 +02:00
cmake cmake: align Zephyr module variable to EXTRA_ZEPHYR_MODULES 2023-05-23 16:40:21 +02:00
doc doc: Remove tickless idle from PM in introduction 2023-05-24 16:39:52 +02:00
drivers net: l2: ieee802154: improve inline documentation 2023-05-24 16:41:57 +02:00
dts dts: infineon: Update psoc6_02 cpu, flash, sram node declarations 2023-05-24 16:41:06 +02:00
include/zephyr barriers: Introduce barrier operations 2023-05-24 13:13:57 -04:00
kernel barriers: Introduce barrier operations 2023-05-24 13:13:57 -04:00
lib iterable_sections: move to specific header 2023-05-22 10:42:30 +02:00
misc misc: generated: update configs.c template with <zephyr/...> prefix 2022-05-09 12:45:29 -04:00
modules net: openthread: Fix double initialization problem in openthread usb. 2023-05-19 19:53:21 +00:00
samples nrf_802154: nrf_802154_serialization_error never returns 2023-05-24 16:41:39 +02:00
scripts scripts: requirements: Update protobuf and grpcio-tools requirements 2023-05-23 08:55:16 +02:00
share sysbuild: update sysbuild to use EXTRA_CONF_FILE variable 2023-05-23 16:40:21 +02:00
snippets snippets: add cdc-acm-console 2023-03-26 16:12:41 +02:00
soc soc: intel_adsp: ipc: check for pending ack 2023-05-23 22:07:08 -04:00
submanifests west.yml: allow users to easily add more modules 2021-10-07 13:45:42 +02:00
subsys net: l2: ieee802154: move variable declaration to start of block 2023-05-24 16:41:57 +02:00
tests tests: Bluetooth: Cleanup Audio BSIM prj.conf 2023-05-24 16:42:07 +02:00
.checkpatch.conf checkpatch: Remove ext/ from excludes 2022-11-30 12:06:55 -05:00
.clang-format clang-format: UseTab use ForContinuationAndIndentation 2023-05-05 11:06:54 -04:00
.codecov.yml yamllint: fix all yamllint comments errors 2023-01-04 01:16:45 +09:00
.editorconfig editorconfig: Improve verbosity 2022-04-28 08:55:39 -04:00
.gitattributes gitattributes: consider SVG files generated 2021-10-14 12:42:44 -04:00
.gitignore tests bsim/net: Separate bsim networking and bluetooth tests. 2023-04-12 22:42:03 +09:00
.gitlint gitlint: Stop ignoring merge, revert, fixup and squash commits 2022-01-10 08:13:36 -05:00
.mailmap mailmap: sort alphabetically 2023-05-15 13:23:32 -04:00
.yamllint scripts: compliance: add support for YAMLLint 2023-01-04 17:29:23 +01:00
CMakeLists.txt build: downgrade the no optimization ztest error to warning 2023-05-23 14:51:24 +00:00
CODE_OF_CONDUCT.md
CODEOWNERS CODEOWNERS: remove myself as mcumgr/smp_udp owner 2023-05-23 13:39:00 +02:00
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr mcuboot: move the MCUboot kconfig file to modules/ 2023-05-18 14:09:00 -04:00
LICENSE
MAINTAINERS.yml tests: drivers: build_all: regulator: add test 2023-05-23 14:37:15 +02:00
README.rst readme: Add support for light/dark modes in the logo 2022-11-18 08:58:59 +01:00
VERSION VERSION: Bump to 3.3.99 2023-02-19 20:34:26 +09:00
version.h.in cmake: generalize VERSION infrastructure for better reuse 2023-05-17 13:56:58 +02:00
west.yml west.yml: Bump libmetal to v2023.04.0 2023-05-23 13:02:48 +02:00
zephyr-env.cmd
zephyr-env.sh everywhere: fix typos 2022-03-18 13:24:08 -04:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <picture>
         <source media="(prefers-color-scheme: dark)" srcset="doc/_static/images/logo-readme-dark.svg">
         <source media="(prefers-color-scheme: light)" srcset="doc/_static/images/logo-readme-light.svg">
         <img src="doc/_static/images/logo-readme-light.svg">
       </picture>
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a
   href="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml?query=branch%3Amain">
   <img
   src="https://github.com/zephyrproject-rtos/zephyr/actions/workflows/twister.yaml/badge.svg?event=push"></a>


The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM (Cortex-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, and a large number of `supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI nightly build results.
* **Chat**: Real-time chat happens in Zephyr's Discord Server. Use
  this `Discord Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Discord Invite: https://chat.zephyrproject.org
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help