Find a file
Daniel Leung 2d78cb74bd cmake: modules/FindGnuLd: cache variable GNULD_VERSION_STRING
This changes to cache variable GNULD_VERSION_STRING across cmake
runs. This variable is used to determine whether -Wl,-no-pie is
being passed to linker. However, if cmake is run multiple times
without clearing the build directory, GNULD_VERSION_STRING was
lost and the script falsely assumed the linker could not take
this argument, and thus omitting it during linking. Depending on
the host, it would warn on something like this:

  /usr/bin/ld.bfd: app/libapp.a(main.c.obj):
      warning: relocation in read-only section
      `.text._posix_zephyr_main'
  /usr/bin/ld.bfd: warning: creating DT_TEXTREL in a PIE

To fix this, simply caches GNULD_VERSION_STRING so it can be
used during subsequent cmake runs.

Fixes #61725

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2023-09-01 09:02:38 -04:00
.github github: issue templates: remove hardware support template 2023-08-31 11:04:09 +03:00
arch boards: fvp_baser_aemv8r_aarch32: disable d-cache 2023-09-01 13:23:26 +02:00
boards boards: fvp_baser_aemv8r_aarch32: disable d-cache 2023-09-01 13:23:26 +02:00
cmake cmake: modules/FindGnuLd: cache variable GNULD_VERSION_STRING 2023-09-01 09:02:38 -04:00
doc release: Introduce a migration guide 2023-09-01 14:05:46 +02:00
drivers drivers: sensor: stm32 Vref sensor calibration on 12bit 2023-09-01 13:22:24 +02:00
dts dts: x86: intel: alder_lake: Added RTC instance 2023-09-01 09:52:43 +02:00
include/zephyr arch: arm64: arm_mpu: optimize ram region attribute 2023-09-01 13:23:26 +02:00
kernel kernel: sched: optimize for Meta IRQs == coop prios 2023-08-28 20:15:44 +02:00
lib posix: implement clock_nanosleep 2023-08-30 13:02:58 -07:00
misc misc: generated: update configs.c template with <zephyr/...> prefix 2022-05-09 12:45:29 -04:00
modules drivers: cat1: Updates to support latest version of HAL/PDL 2023-09-01 09:52:25 +02:00
samples Bluetooth: hci_rpmsg: flush the logs before locking CPU 2023-09-01 13:23:17 +02:00
scripts scripts: west_commands: Allow passing source dir when looking for test 2023-08-31 12:06:18 -07:00
share sysbuild: refactor image_config.cmake handling 2023-08-24 10:57:28 +02:00
snippets snippets: support for EXTRA_DTC_OVERLAY_FILE and EXTRA_CONF_FILE 2023-05-25 13:31:53 +00:00
soc drivers: cat1: Updates to support latest version of HAL/PDL 2023-09-01 09:52:25 +02:00
submanifests
subsys tests: interrupt util: Fix for native/posix targets 2023-09-01 09:54:27 +02:00
tests tests drivers.flash.common.default: Fix allow list 2023-09-01 08:59:49 -04:00
.checkpatch.conf checkpatch: Remove ext/ from excludes 2022-11-30 12:06:55 -05:00
.clang-format clang-format: flag *_SECTION_FOREACH as for loop 2023-05-26 11:04:54 -05:00
.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 scripts: ci: check_compliance: add a no-modules Kconfig check 2023-07-05 09:11:02 +02:00
.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 cmake: add Zephyr image output files as byproducts 2023-08-22 12:31:43 +02:00
CODE_OF_CONDUCT.md
CODEOWNERS net: conn_mgr: Rename connectivity monitor 2023-08-29 16:13:37 +02:00
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr Kconfig.zephyr: check priorities by default 2023-08-24 15:35:37 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS: changes to maintainers in the networking area 2023-08-31 09:59:49 -04:00
README.rst readme: Add support for light/dark modes in the logo 2022-11-18 08:58:59 +01:00
VERSION release: bump main to v3.4.99 2023-06-16 13:29:34 -04:00
version.h.in kernel: banner: Allow for customising version 2023-08-21 10:09:46 +02:00
west.yml drivers: cat1: Updates to support latest version of HAL/PDL 2023-09-01 09:52:25 +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