Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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Yong Cong Sin f87539081d lib/libc: picolibc: select its source with Kconfig choice
Implement the selection of the picolibc source in a Kconfig
choice as they are mutually exclusive.

The following table represents the possible choices, where 'X'
means that `PICOLIBC_SUPPORTED=n` and is guarded in the parent
level as `PICOLIBC=n`, so we do not need to care.

Module  Toolchain    C++   |       Choice
  0         0         0    |          X
  0         0         1    |          X
  0         1         0    |    Toolchain only
  0         1         1    |    Toolchain only
  1         0         0    |      Module only
  1         0         1    |          X
  1         1         0    |   Toolchain/Module
  1         1         1    |    Toolchain only

The current implementation favors `PICOLIBC_USE_TOOLCHAIN` over
`PICOLIBC_USE_MODULE` whenever possible, that preference is
maintained in this implementation as well - the TOOLCHAIN
source will be the default choice when the toolchain supports
it or when the C++ is enabled. Otherwise, fallback to MODULE.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
2024-07-09 17:29:12 -04:00
.github github: hello_world_multiplatform: upgrade from macos-12 to macos-13 2024-07-03 17:00:50 -04:00
arch arch: arm: cmake: Correct endian in output format 2024-07-04 18:01:51 -04:00
boards boards: nxp: mimxrtxxx: Fix partition unit address 2024-07-09 15:21:36 -04:00
cmake llext: disable verbose for SLID generation scripts 2024-07-09 17:21:18 +02:00
doc doc: guidelines: update coding guidelines docs 2024-07-09 15:23:18 -04:00
drivers drivers: watchdog: Refine the atcwdt200 driver's code. 2024-07-09 17:21:28 -04:00
dts dts: nxp: rtxxx: Fix LPADC unit address 2024-07-09 15:21:36 -04:00
include/zephyr rtio: Add RTIO Work-queues service 2024-07-09 17:21:05 -04:00
kernel kernel: corrected parameter names 2024-07-08 12:18:31 -04:00
lib lib/libc: picolibc: select its source with Kconfig choice 2024-07-09 17:29:12 -04:00
misc
modules modules: hostap: Fix interface addition 2024-07-09 13:07:11 -04:00
samples samples: sensor: ds18b20: clearly indicate any errors 2024-07-09 15:37:58 -04:00
scripts west: Regex based version finding in OpenOCD runner 2024-07-09 19:02:13 +02:00
share sysbuild: check for existence of APPLICATION_CONFIG_DIR 2024-06-27 10:58:11 -04:00
snippets dts: nordic: nrf54l15: Add mbox VEVIF nodes 2024-06-15 04:41:47 -04:00
soc soc: silabs: Include series-specific Kconfig 2024-07-09 08:59:02 +02:00
submanifests submanifests: update `tflite-micro` 2024-06-28 07:50:12 -04:00
subsys rtio: Add RTIO Work-queues service 2024-07-09 17:21:05 -04:00
tests tests: logging/dictionary: pytest only looks at last output 2024-07-09 17:25:22 -04:00
.checkpatch.conf
.clang-format
.codecov.yml
.editorconfig
.gitattributes
.gitignore .gitignore: do not ignore .\#* files 2024-06-11 19:44:54 -04:00
.gitlint
.mailmap
.yamllint
CMakeLists.txt llext: disable verbose for SLID generation scripts 2024-07-09 17:21:18 +02:00
CODEOWNERS drivers: disk: remove `sdmmc_sdhc.h` since no longer used 2024-06-14 18:50:47 -04:00
CODE_OF_CONDUCT.md
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr kconfig: llvm: Set default opt level to -Oz when building with LLVM 2024-06-14 19:05:50 -04:00
LICENSE
MAINTAINERS.yml MAINTAINERS: move generate_usb_vif to USB-C section 2024-07-09 17:26:58 -04:00
README.rst
SDK_VERSION
VERSION release: Zephyr v3.7.0-rc2 2024-06-29 13:03:00 +02:00
version.h.in
west.yml manifest: Bump libmetal and open-amp 2024-07-05 12:26:54 +02:00
zephyr-env.cmd
zephyr-env.sh

README.rst

.. 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:

Getting Started
---------------

  | 📖 `Zephyr Documentation`_
  | 🚀 `Getting Started Guide`_
  | 🙋🏽 `Tips when asking for help`_
  | 💻 `Code samples`_

Code and Development
--------------------

  | 🌐 `Source Code Repository`_
  | 📦 `Releases`_
  | 🤝 `Contribution Guide`_

Community and Support
---------------------

  | 💬 `Discord Server`_ for real-time community discussions
  | 📧 `User mailing list (users@lists.zephyrproject.org)`_
  | 📧 `Developer mailing list (devel@lists.zephyrproject.org)`_
  | 📬 `Other project mailing lists`_
  | 📚 `Project Wiki`_

Issue Tracking and Security
---------------------------

  | 🐛 `GitHub Issues`_
  | 🔒 `Security documentation`_
  | 🛡️ `Security Advisories Repository`_
  | ⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org

Additional Resources
--------------------
  | 🌐 `Zephyr Project Website`_
  | 📺 `Zephyr Tech Talks`_

.. _Zephyr Project Website: https://www.zephyrproject.org
.. _Discord Server: https://chat.zephyrproject.org
.. _supported boards: https://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: https://docs.zephyrproject.org
.. _Introduction to Zephyr: https://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: https://docs.zephyrproject.org/latest/contribute/index.html
.. _Source Code Repository: https://github.com/zephyrproject-rtos/zephyr
.. _GitHub Issues: https://github.com/zephyrproject-rtos/zephyr/issues
.. _Releases: https://github.com/zephyrproject-rtos/zephyr/releases
.. _Project Wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _User mailing list (users@lists.zephyrproject.org): https://lists.zephyrproject.org/g/users
.. _Developer mailing list (devel@lists.zephyrproject.org): https://lists.zephyrproject.org/g/devel
.. _Other project mailing lists: https://lists.zephyrproject.org/g/main/subgroups
.. _Code samples: https://docs.zephyrproject.org/latest/samples/index.html
.. _Security documentation: https://docs.zephyrproject.org/latest/security/index.html
.. _Security Advisories Repository: https://github.com/zephyrproject-rtos/zephyr/security
.. _Tips when asking for help: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help
.. _Zephyr Tech Talks: https://www.zephyrproject.org/tech-talks