Find a file
Bradley Bolen 3f7162fc07 arch: arm: aarch32: Rearrange exception stack frame
Cortex-A/R use a descending stack frame and the hardware does not help
with the stacking.  This led to some less than desirable workarounds in
the exception code where the basic stack frame was saved twice.
Rearranging the order of the exception stack frame removes that problem
and provides a clearer path to saving CPU context in a fully descending
manner.

Signed-off-by: Bradley Bolen <bbolen@lexmark.com>
2022-05-05 12:03:27 +09:00
.github ci: Update to Zephyr SDK 0.14.1 2022-04-19 09:15:06 -04:00
arch arch: arm: aarch32: Rearrange exception stack frame 2022-05-05 12:03:27 +09:00
boards boards: mps3_an547: Update obsolete emulation instructions 2022-05-05 11:58:11 +09:00
cmake cmake: gcc: target_arm: Force FP hard ABI for DCLS 2022-05-05 12:03:27 +09:00
doc doc: autopts: Remove WSL setup 2022-05-04 16:44:23 -04:00
drivers logging: cAVS HDA based logger 2022-05-04 18:56:13 -04:00
dts dts: x86: add CMOS RTC node to common devicetree files 2022-05-04 09:42:26 -05:00
include/zephyr arch: arm: aarch32: Rearrange exception stack frame 2022-05-05 12:03:27 +09:00
kernel kernel: sched: Change cpu pin only for not executing threads 2022-05-04 13:46:48 -04:00
lib lib: os: cbprintf: Add function for converting package 2022-05-04 18:56:55 -04:00
misc cmake: only write devicetree files when there are changes. 2022-02-11 15:47:09 +01:00
modules modules: cmsis_dsp: Fix missing common tables dependency for SVM 2022-05-05 11:58:11 +09:00
samples samples: unicast_audio_server: Remove unused buf pool 2022-05-04 18:57:15 -04:00
scripts twister: implement platform-specific test timeout management 2022-05-04 19:01:11 -04:00
share cmake: zephyr-package: add message mode 2022-03-23 13:24:41 +01:00
soc Revert "soc: arm: mps3: Only enable MVE if not QEMU" 2022-05-05 11:58:11 +09:00
submanifests west.yml: allow users to easily add more modules 2021-10-07 13:45:42 +02:00
subsys Bluetooth: gatt: Update bt_gatt_is_subscribed documentation 2022-05-04 18:56:36 -04:00
tests tests: fpu_sharing: Support FPU disable test for Cortex-A/R 2022-05-05 12:03:27 +09:00
.checkpatch.conf checkpatch: Ignore IS_ENABLED_CONFIG warnings 2021-10-18 08:28:01 -04:00
.clang-format clang-format: Change lines length limit from 80 to 100 2021-05-06 08:13:32 -05:00
.codecov.yml
.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 gitignore: add .clangd to the ignore list 2022-04-24 19:47:40 +02:00
.gitlint gitlint: Stop ignoring merge, revert, fixup and squash commits 2022-01-10 08:13:36 -05:00
.mailmap mailmap: update mailmap file with some stray emails 2021-06-17 14:15:41 -04:00
.uncrustify.cfg uncrustify: force a single EOF newline 2021-11-03 16:14:20 -04:00
CMakeLists.txt sparse: add an address space and a __sparse_force annotation 2022-05-03 09:37:08 +02:00
CODE_OF_CONDUCT.md coc: move to markdown format 2019-01-24 15:37:15 -05:00
CODEOWNERS tests: subsys: sd: Add SDMMC subsystem test 2022-04-29 14:21:36 -05:00
CONTRIBUTING.rst doc: Fixed a link in CONTRIBUTING.rst 2019-02-28 12:46:04 -08:00
Kconfig kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.zephyr build: make non zephyr/ include prefix configurable 2022-04-08 19:03:32 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS: Make myself the disk subsystem maintainer 2022-04-29 11:24:35 -04:00
README.rst readme: make README logo dark-mode aware 2022-02-15 19:47:48 +01:00
VERSION VERSION: bump patchlevel to 99 2022-02-21 19:05:46 -05:00
version.h.in cmake: version.h generation performed at build time 2022-02-08 07:50:24 -05:00
west.yml west.yml: Update CMSIS to pull in MVE fixes 2022-05-05 11:58:11 +09:00
zephyr-env.cmd scripts: remove west from scripts/ 2019-01-29 10:15:01 +01:00
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">
       <img src="doc/_static/images/logo-readme.svg">
     </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-M,
Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V, 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/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/getting_started/index.html#asking-for-help