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Stephanos Ioannidis 175cc385c4 lib: picolibc: Use smaller default heap size
The picolibc heap size configuration (`CONFIG_PICOLIBC_HEAP_SIZE`) is
used to set the statically allocated malloc heap size when userspace is
enabled.

The current default heap size of 1048576 bytes (MMU) and 65536 bytes
(MPU) is too large for most platforms that Zephyr supports and may
result in the picolibc tests being filtered out due to the increased
memory footprint of the compiled image (i.e. SRAM overflow).

This commit updates the default picolibc heap size to a more reasonable
16384 bytes for MMU platforms and 1024 bytes for MPU platforms.

Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>
2022-09-30 13:52:24 +00:00
.github templates: nomination: Fix outdated "GitHub Permission Level" link 2022-09-30 09:43:17 +00:00
arch riscv: fix crash resulting from touching the initial stack's guard area 2022-09-28 07:53:56 +00:00
boards trivial: Remove empty files 2022-09-30 09:41:55 +00:00
cmake linker: Remove k_mem_pool section 2022-09-28 14:24:34 +00:00
doc doc/release: Add note on deprecated FLASH_MAP_ macros 2022-09-30 07:44:49 -05:00
drivers trivial: Remove empty files 2022-09-30 09:41:55 +00:00
dts dts: arm: nxp: use dt nodelabels for dma assignments on RT11xx 2022-09-30 09:45:56 +00:00
include/zephyr storage/flash_map: Deprecate FLASH_AREA_ macros 2022-09-30 07:44:49 -05:00
kernel kernel: kheap: fix k_heap_aligned_alloc handling of K_FOREVER 2022-09-29 10:39:12 -05:00
lib lib: picolibc: Use smaller default heap size 2022-09-30 13:52:24 +00:00
misc misc: generated: update configs.c template with <zephyr/...> prefix 2022-05-09 12:45:29 -04:00
modules modules: loramac-node: fix CN470 linking 2022-09-26 09:38:49 +00:00
samples samples: drivers: espi: Re-enable eSPI SAF for MEC152x board 2022-09-29 14:59:32 +00:00
scripts twister: size_calc: Remove stale k_mem_pool_area reference 2022-09-28 14:24:34 +00:00
share cmake: extend zephyr_get() to handle build configurations from sysbuild 2022-09-02 15:16:50 +02:00
soc drivers: gpio: it8xxx2: add support for GPIO_DISCONNECTED flag 2022-09-29 14:33:53 +00:00
submanifests
subsys Bluetooth: controller: ensure memory access is aligned 2022-09-30 11:12:19 +02:00
tests tests: kernel: mutex: test for lock timeout race 2022-09-30 09:45:37 +00:00
.checkpatch.conf checkpatch: Ignore IS_ENABLED_CONFIG warnings 2021-10-18 08:28:01 -04:00
.clang-format clang-format: do not merge blocks/functions into single line 2022-07-15 19:18:28 -04:00
.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: exempt scripts/build from ignore 2022-07-30 08:29:29 -05:00
.gitlint gitlint: Stop ignoring merge, revert, fixup and squash commits 2022-01-10 08:13:36 -05:00
.mailmap
CMakeLists.txt cmake: move testing of compile flag in environment to top CMakeLists.txt 2022-09-01 15:59:43 +02:00
CODE_OF_CONDUCT.md
CODEOWNERS CODEOWNERS: Remove asbjornsabo from BT Codeowners 2022-09-26 09:48:49 -05:00
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr testsuite: ztress: Use XOSHIRO generator when ztress is used 2022-09-08 05:43:17 -04:00
LICENSE
MAINTAINERS.yml MAINTAINERS: DTS maintainer updates 2022-09-29 19:22:04 +02:00
README.rst readme: Update stale documentation links 2022-06-06 12:07:12 +02:00
VERSION release: Zephyr 3.2.0-rc3 2022-09-23 14:40:54 -05:00
version.h.in cmake: version.h generation performed at build time 2022-02-08 07:50:24 -05:00
west.yml manifest: mcuboot update 2022-09-29 14:27:11 +00:00
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">
       <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-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