Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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Jukka Laitinen a0caa5cd96 sched/signal/sig_dispatch.c: Correct signal dispatch to specific thread
The signal dispatch is called from interrupt handlers as well, so
this_task() is wrong. The thread to which the signal is supposed to
be delivered is known (stcb), use that.

Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
2025-09-02 14:56:35 +08:00
.github build.yml: Excludes the workflow run if the file is CONTRIBUTING.md 2025-08-22 23:29:15 +08:00
arch armv[7/8]-r: add ARM_BUSY_WAIT 2025-09-01 22:58:36 +08:00
audio
binfmt
boards boards/arcx-socket-grid: Add support to two USBs 2025-09-01 22:58:01 +08:00
cmake Cmake: add defconfig preprocess capability in Cmake build environment(recursively expand #include) 2025-08-25 20:30:16 +08:00
crypto crypto/hmac: Fix typo in function implementation names 2025-08-13 23:11:02 +08:00
Documentation doc: Add info about usbdisk to arcx-socket-grid 2025-09-01 22:58:01 +08:00
drivers drivers/ioexpander/aw9523b: New driver for AW9523B i/o expander 2025-08-29 09:10:50 -03:00
dummy
fs fs/fat: Fix wrong alloc used in fat_zero_cluster() 2025-08-29 19:18:32 +02:00
graphics
include libs/libc/semaphore: allow nxsem_init to negative value 2025-08-31 18:38:03 +08:00
libs libs/libc/semaphore: allow nxsem_init to negative value 2025-08-31 18:38:03 +08:00
mm kasan watchpoint: Fix judgment problem 2025-07-01 09:04:03 -03:00
net net/can/can_recvmsg.c: Cleanup can_readahead 2025-08-26 20:42:01 +08:00
openamp
pass1
sched sched/signal/sig_dispatch.c: Correct signal dispatch to specific thread 2025-09-02 14:56:35 +08:00
syscall
tools tools/checkpatch.sh: check format for all commits in patch 2025-09-01 16:37:16 +02:00
video
wireless
.asf.yaml
.codespell-ignore-lines
.codespellrc arch/risc-v/rp23xx-riscv: Add rp23xx RISC-V cores support (Hazard3) 2025-08-11 08:56:27 +08:00
.editorconfig .editorconfig: add .editorconfig file to help maintain coding style 2025-08-28 21:53:16 +08:00
.gitignore
.gitmessage
.pre-commit-config.yaml
.yamllint
AUTHORS AUTHORS: add Simone Falsetti 2025-07-15 15:12:44 -03:00
CMakeLists.txt Cmake: add defconfig preprocess capability in Cmake build environment(recursively expand #include) 2025-08-25 20:30:16 +08:00
CONTRIBUTING.md
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ReleaseNotes

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Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.