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Ioannis Glaropoulos f00dfce891 arch: arm: userspace: set PSPLIM to guard default stack in SVCall
Thread will be in privileged mode after returning from SCVall. It
will use the default (user) stack before switching to the privileged
stack to execute the system call. We need to protect the user stack
against stack overflows until this stack transition. We update the
note in z_arm_do_syscall(), stating clearly that it executing with
stack protection when building with stack limit checking support
(ARMv8-M only).

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2020-02-19 12:19:43 -08:00
.github github: doc-publish: remove debug flag 2020-02-16 12:08:48 -06:00
.known-issues
arch arch: arm: userspace: set PSPLIM to guard default stack in SVCall 2020-02-19 12:19:43 -08:00
boards boards: remove outdated documentation about partition linking 2020-02-19 07:30:43 -06:00
cmake cmake: report extra version (rcX) 2020-02-17 14:34:39 -05:00
doc doc: Update "Linking Zephyr Within a Partition" section 2020-02-19 07:30:43 -06:00
drivers interrupt_controller: program local APIC LDR register for xAPIC 2020-02-19 10:25:10 -08:00
dts dts: stm32f3: Remap USB IRQ to avoid conflict with CAN 2020-02-18 18:44:42 +02:00
ext
include arch: aarch32: define macro for PendSV IRQ priority level 2020-02-19 12:19:43 -08:00
kernel kernel/thread: Don't clobber arch initialization of switch_handle 2020-02-19 08:29:35 -05:00
lib lib: posix: clock: Fix nanosecond rollover logic 2020-02-15 23:09:43 +03:00
misc
modules
samples samples: net: gsm_modem: Add README file 2020-02-18 18:52:43 +02:00
scripts sanitycheck: Update section names for memory size calculation 2020-02-18 12:59:25 -05:00
soc soc: arm: atmel: sam4e: Fix USART1 soc_pinmap 2020-02-15 16:35:01 -06:00
subsys usb: Set USB version to 2.1 when using BOS 2020-02-19 12:30:35 +02:00
tests tests: arch: arm_irq_vector_table: minor inline comment updates 2020-02-19 12:40:46 +02:00
.checkpatch.conf
.clang-format
.codecov.yml
.editorconfig
.gitattributes
.gitignore
.gitlint
.mailmap
.shippable.yml ci: Bump to SDK 0.11.2 and CI image 0.11.4 2020-02-14 20:54:33 +02:00
.uncrustify.cfg
CMakeLists.txt
CODE_OF_CONDUCT.md
CODEOWNERS
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr doc: update BOOTLOADER_MCUBOOT description 2020-02-19 07:30:43 -06:00
LICENSE
Makefile
README.rst
VERSION
version.h.in
west.yml bluetooth: controller: openisa: update west.yml to point to HAL 2020-02-18 12:34:27 +02:00
zephyr-env.cmd
zephyr-env.sh

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <img src="doc/images/Zephyr-Project.png">
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <img
   src="https://api.shippable.com/projects/58ffb2b8baa5e307002e1d79/badge?branch=master">


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

.. start_include_here

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.

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

Community support is provided via mailing lists and Slack; 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://zephyrproject.org/developers/#downloads
* **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
  (shippable) nightly build results.
* **Chat**: Zephyr's Slack workspace is https://zephyrproject.slack.com.  Use
  this `Slack 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

.. _Slack Invite: https://tinyurl.com/y5glwylp
.. _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/guides/getting-help.html