FreeRTOS-Kernel
darwin-xnu
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| FreeRTOS-Kernel | darwin-xnu | |
|---|---|---|
| 12 | 186 | |
| 2,332 | 10,694 | |
| 5.7% | - | |
| 9.4 | 0.0 | |
| 7 days ago | over 1 year ago | |
| C | C | |
| MIT License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
FreeRTOS-Kernel
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what do people usually do to separate/abstract platform dependent codes/files
Here is the port - https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/ThirdParty/GCC/Posix
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TI CC2630: Having trouble deciding Contiki vs TI-RTOS
Freertos has support for generic cortex m3: https://github.com/FreeRTOS/FreeRTOS-Kernel/tree/main/portable/GCC/ARM_CM3 It could very well work almost out of the box with your mcu.
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Ted Ts'o: "As an OS engineer, I deeply despise these optimization tricks, since I personally I care about correctness and not corrupting user data far more than I care about execution speed"
the only OS written in iso c i found was RTOS and they have open bug reports due to strict aliasing in simple things like their linked list implementation, which they don't bother to fix because somehow that causes even more problems (?!): https://github.com/FreeRTOS/FreeRTOS-Kernel/pull/54
- HELP
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Arduino or full featured RTOS?
You likely put the requirements of POSIX just to have an excuse. Fyi, FreeRTOS kernel, the only thing you need, is here: https://github.com/FreeRTOS/FreeRTOS-Kernel/
- Ask HN: Examples of Microkernels?
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Ask HN: Embedded Projects to Learn From?
- https://github.com/FreeRTOS/FreeRTOS-Kernel (architecture, C)
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Nutshell custom memory allocators for me
FreeRTOS comes with 5 quite simple reference implementations of the heap memory allocator. You can study how it works.
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Using FreeRTOS and dual core RP2040
The main branch is single-core. You're looking for the SMP branch.
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C programmers scare me
On non-POSIX systems, malloc & free are implemented differently. EG FreeRTOS has some very simple malloc (and optionally free) implementations, eg heap_2.c (has malloc & free, but doesn't consolidate blocks), or heap_4.c (more complex, tries to prevent fragmentation by consolidating blocks, still less optmized & simpler than the glibc malloc/free used by most Linux systems).
darwin-xnu
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What font is thls?
Here's the C source code of the font itself, as a 256x16 array of 8 bit values.
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Long before CentOS or RHEL, a reminder from 2000: RedHatIsNotLinux.org
> Update: fortunately there's still Mac OS.
Go download the source for Darwin.. https://github.com/apple/darwin-xnu
Compile it. Install it on your MacBook. Tell us how well MacOS boots that kernel.
- Apple’s Game Porting Toolkit is Wine
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The real murder is always in the comments
What is still true? That apple kernels are Mach kernels? It still is very true. Darwin is (mostly) open source, you can check it out here: https://github.com/apple/darwin-xnu
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[D] ClosedAI license, open-source license which restricts only OpenAI, Microsoft, Google, and Meta from commercial use
Everything that includes copyleft code is open source. You can see https://opensource.apple.com for a full list
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Google Leaked Doc: OpenAI doesn’t matter
Jup! Their kernel was based on FreeBSD, IIRC, and is Open Source!
- An improvement to Apple's XNU kernel
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Linux is too proprietary and slow compared to Windows 11
Funfact darwin itself is open source aswell: apple/darwin-xnu: The Darwin Kernel (mirror). This repository is a pure mirror and contributions are currently not accepted via pull-requests, please submit your contributions via https://developer.apple.com/bug-reporting/ (github.com)
- Linux got nothing on macOS
- Top Ten Fallacies About RISC-V
What are some alternatives?
zephyr - Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
DeepCreamPy
RIOT - RIOT - The friendly OS for IoT
linux-m1 - Linux kernel source tree
mbed-os - Arm Mbed OS is a platform operating system designed for the internet of things
ravynos - A BSD-based OS project that aims to provide source and binary compatibility with macOS® and a similar user experience.
mongoose-os - Mongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.
freebsd-src - The FreeBSD src tree publish-only repository. Experimenting with 'simple' pull requests....
nuttx - Apache NuttX is a mature, real-time embedded operating system (RTOS)
darling - Darwin/macOS emulation layer for Linux
TizenRT - TizenRT is a lightweight RTOS-based platform to support low-end IoT devices
xnu