No description
a5110b52ca
The existing implementation of the adsplog.py script worked fine for individual runs (e.g. when running specific code) but had no support for detecting system reset events and thus could not be used for monitoring applications like test automation. It also could not handle the case where a rapid log burst would overflow the buffer before being noticed at the client. Also, the protocol here was also rife with opportunities for race conditions. Fix all that up via what is mostly a rewrite of the script. The protocol itself hasn't changed, just the handling. Also includes some changes to the trace_out.c code on the device side. These are required to get ordering correct to make race conditions tractably handleable on the reader side. Some of the specific cases that are managed: * There is a 0.4s backoff when a reset is detected. Continuing to poll the buffer has been observed to hang the device (I'm fairly sure this is actually a hardware bug, reads aren't visible to the DSP software). * The "no magic number" case needs to be reserved for detecting system reset. * Slot data must be read BETWEEN two reads of the ID value to detect the case where the slot gets clobbered while being read. * The "currently being filled" slot needs to always have an ID value that does not appear in sequence from the prior slot. * We need to check the full history in the buffer at each poll to detect resets, which opens up a race between the read of the "next slot" (which is absent) and the full history retrieval (when it can now be present!). Detect that. * A null termination bug in the current output slot got fixed. Broadly: this was a huge bear to make work. It sounds like this should be a simple protocol, but it's not in practice. Also: clean up the error reporting in the script so it can handle new PCI IDs being added, and reports permissions failures on the required sysfs file as a human-readable error. Signed-off-by: Andy Ross <andrew.j.ross@intel.com> |
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| cmake | ||
| doc | ||
| drivers | ||
| dts | ||
| include | ||
| kernel | ||
| lib | ||
| misc | ||
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| samples | ||
| scripts | ||
| share | ||
| soc | ||
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| .codecov.yml | ||
| .editorconfig | ||
| .gitattributes | ||
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| CODE_OF_CONDUCT.md | ||
| CODEOWNERS | ||
| CONTRIBUTING.rst | ||
| Kconfig | ||
| Kconfig.zephyr | ||
| LICENSE | ||
| MAINTAINERS.yml | ||
| Makefile | ||
| README.rst | ||
| VERSION | ||
| version.h.in | ||
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| zephyr-env.cmd | ||
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.. 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>
<a href="https://buildkite.com/zephyr/zephyr">
<img
src="https://badge.buildkite.com/f5bd0dc88306cee17c9b38e78d11bb74a6291e3f40e7d13f31.svg?branch=master"></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
.. 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://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
(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