Work In Progress
| NuttX X.Y has not been released yet. These Release Notes are a work-in-progress in preparation for the next release of NuttX. There is a board tracking the PRs that need to be looked at to add to this doc for the OS TODO ADD LINK and for the Apps TODO ADD LINK |
What's New In This Release
Core OS
Sched
* [#13395](https://github.com/apache/nuttx/pull/13395) Critmon optimize, make possible open cpuload based on critmon and disable critical section & sched_lock to save cost.
* [#12691](https://github.com/apache/nuttx/pull/12691) sched.h: add SCHED_BATCH and SCHED_IDLE definition
* [#12584](https://github.com/apache/nuttx/pull/12584) sched.h: CPU_XXX macros can also be used without CONFIG_SMP
* [#12703](https://github.com/apache/nuttx/pull/12703) sched.h: Update doc link for tcbinfo_s
* [#13274](https://github.com/apache/nuttx/pull/13274) sched: add DEBUGASSERT to assure that affinity not zero
* [#13341](https://github.com/apache/nuttx/pull/13341) sched: adjust the scheduling strategy
* [#13105](https://github.com/apache/nuttx/pull/13105) sched: change pthread_mutex implementation from sem to mutex
* [#12742](https://github.com/apache/nuttx/pull/12742) sched: Improve Kconfig help of INIT_ENTRYPOINT
* [#13525](https://github.com/apache/nuttx/pull/13525) sched: move DUMP_ON_EXIT to sched
* [#13211](https://github.com/apache/nuttx/pull/13211) sched: replace up_cpu_index with this_cpu
* [#13271](https://github.com/apache/nuttx/pull/13271) sched: use this_task replace nxsched_self
* [#13263](https://github.com/apache/nuttx/pull/13263) sched/event: clear pending events before enable the scheduler
* [#13329](https://github.com/apache/nuttx/pull/13329) sched/group/setuptask_file: duplicate idle task fd for kernel thread
* [#13083](https://github.com/apache/nuttx/pull/13083) sched/irq: correct critical section to spin lock
* [#12802](https://github.com/apache/nuttx/pull/12802) sched/nxevent: add support of kernel event group
* [#13264](https://github.com/apache/nuttx/pull/13264) sched/policy: move g_policy from data to rodata
* [#13017](https://github.com/apache/nuttx/pull/13017) sched/sched: simplify the implementation of the function nxsched_readytorun_setpriority
* [#13134](https://github.com/apache/nuttx/pull/13134) sched/signal: fix pthread_kill use after free
* [#13530](https://github.com/apache/nuttx/pull/13530) sched/signal: Simplified Implementation for SIGEV_THREAD_TID
* [#12283](https://github.com/apache/nuttx/pull/12283) sched/signal: There is no need to use sched_[un]lock
* [#12553](https://github.com/apache/nuttx/pull/12553) sched/tcb: amend pull/12320 |
MM
* [#12550](https://github.com/apache/nuttx/pull/12550) mm: add mm_initialize_pool, make pool more flexible
* [#12556](https://github.com/apache/nuttx/pull/12556) mm: mm_threshold perfer from init
* [#12501](https://github.com/apache/nuttx/pull/12501) mm/iob: Simplify IOB alloc/free logic
* [#12923](https://github.com/apache/nuttx/pull/12923) mm/map/vm_region.c: Fix usage of void* arithmetics
* [#12946](https://github.com/apache/nuttx/pull/12946) mm/mempool: rename the mempool_alloc and mempool_free function
* [#12659](https://github.com/apache/nuttx/pull/12659) mm_ubsan: add dummy to bypass runtime actions
* [#12646](https://github.com/apache/nuttx/pull/12646) mm_ubsan: add implement for dynamic_type_cache_miss |
libc
* [#12672](https://github.com/apache/nuttx/pull/12672) add rint and expm1 function to cmath from libm
* [#13011](https://github.com/apache/nuttx/pull/13011) lib_getcwd:Fix the Name in the function description.
* [#12966](https://github.com/apache/nuttx/pull/12966) lib_remove:Repair the logical judgment
* [#12890](https://github.com/apache/nuttx/pull/12890) libc: Add macro restrictions to code that uses floating point numbers
* [#13111](https://github.com/apache/nuttx/pull/13111) libc: compile stackchk function by default
* [#12953](https://github.com/apache/nuttx/pull/12953) libs: fix the default value of process-shared attribute
* [#12975](https://github.com/apache/nuttx/pull/12975) libs: fix the default value of process-shared attribute
* [#12605](https://github.com/apache/nuttx/pull/12605) libc: scanf, printf %z change switch const to if
* [#12585](https://github.com/apache/nuttx/pull/12585) libc/execinfo: extract a common backtrace format function
* [#13013](https://github.com/apache/nuttx/pull/13013) libc/msic: Implement get_nprocs API
* [#13381](https://github.com/apache/nuttx/pull/13381) libc/misc/crc32: crc32 add slow mode, optional decrease size
* [#13441](https://github.com/apache/nuttx/pull/13441) libc/netdb: Remove unnecessary CONFIG_LIBC_NETDB checks
* [#13025](https://github.com/apache/nuttx/pull/13025) libc/netdb: Separate IPv4 and IPv6 cache size limit
* [#13220](https://github.com/apache/nuttx/pull/13220) libc/sysconf: add _SC_GETPW_R_SIZE_MAX
* [#13479](https://github.com/apache/nuttx/pull/13479) libc/time: add g_lcl_lock to protect local context in localsub
* [#13080](https://github.com/apache/nuttx/pull/13080) libc/time: remove lib_strptime
* [#12693](https://github.com/apache/nuttx/pull/12693) libc/unistd: added an implementation of the lib_flock function
* [#12609](https://github.com/apache/nuttx/pull/12609) libc/x86_64: port string functions from bionic
* [#13110](https://github.com/apache/nuttx/pull/13110) libcxxabi: libcxxabi enables exceptions by default
* [#13079](https://github.com/apache/nuttx/pull/13079) libs/libc/obstack: correctly append null byte at the end of string
* [#13482](https://github.com/apache/nuttx/pull/13482) libs/libc/obstack: implement ptr and int growing functions
* [#13495](https://github.com/apache/nuttx/pull/13495) libs/libc/obstack: revert invalid null byte append to obstack_vprintf
* [#13185](https://github.com/apache/nuttx/pull/13185) libs/libc/stdio/*printf *scanf:Add string serialization and deserialization functions
* [#13294](https://github.com/apache/nuttx/pull/13294) libs/libm: fix epsilon relaxation in log and logf
* [#13307](https://github.com/apache/nuttx/pull/13307) libs/libm/libm: apply epsilon relax factor only if epsilon is small
* [#12568](https://github.com/apache/nuttx/pull/12568) libm{libm|newlib}: fix broken sincos optimization for GCC
* [#12811](https://github.com/apache/nuttx/pull/12811) libm/copysign: respect signed zero/NaN handling in copysign
* [#13174](https://github.com/apache/nuttx/pull/13174) syscall: delete getrandom in syscall because it have moved to lib
|
tools
* [#13021](https://github.com/apache/nuttx/pull/13021) tools: add improved pre-commit tool
* [#12794](https://github.com/apache/nuttx/pull/12794) tools: nxstyle if statement check
* [#12651](https://github.com/apache/nuttx/pull/12651) tools/imx9: prepare bootable bootloader image
* [#12838](https://github.com/apache/nuttx/pull/12838) tools/[Rust|D]: Fix build break for RISC-V
* [#12854](https://github.com/apache/nuttx/pull/12854) tools/[Rust|D]: Fix the Rust and D Builds for QEMU RISC-V
* [#12983](https://github.com/apache/nuttx/pull/12983) tools/parsetrace.py:fix parsetrace script error
|
various
Build System
New Features
* [#12904](https://github.com/apache/nuttx/pull/12904) [Cross-Platform] Remove Unix-specific code in savedefconfig and replace it with cmake script
* [#12910](https://github.com/apache/nuttx/pull/12910) [cmake] add_application supports only registration but not compilation
* [#12964](https://github.com/apache/nuttx/pull/12964) [cmake] split the archive process to avoid parameter too long problems
* [#13019](https://github.com/apache/nuttx/pull/13019) [cmake] add nuttx_post and app_context inter targets for timing control
* [#12908](https://github.com/apache/nuttx/pull/12908) [Win32 sim] enable win32 native platfrom sim compilation by CMake fix compilation error
* [#12900](https://github.com/apache/nuttx/pull/12900) arch/sim/src/cmake/Toolchain.cmake: macOS fix unknown options: --gc-sections
* [#12856](https://github.com/apache/nuttx/pull/12856) build: Fix libc/pwd CMakeLists.txt
* [#13347](https://github.com/apache/nuttx/pull/13347) build: fix memory manager compile options for CMake
* [#12859](https://github.com/apache/nuttx/pull/12859) build: Fix Toolchain.cmake for CONFIG_SIM_ASAN enabled
* [#12880](https://github.com/apache/nuttx/pull/12880) build: set CMake policy to allow FetchContent_Populate
* [#12784](https://github.com/apache/nuttx/pull/12784) build/cmake: add user_ldscript preprocessing
* [#12866](https://github.com/apache/nuttx/pull/12866) build/cmake: fix system include dir for PROTECTED mode
* [#13143](https://github.com/apache/nuttx/pull/13143) board/maix-bit: initial cmake support
* [#13090](https://github.com/apache/nuttx/pull/13090) board/qemu-armv7a: add CMake support
* [#12868](https://github.com/apache/nuttx/pull/12868) boards/rv-virt: cmake for pnsh and nsbi
* [#13175](https://github.com/apache/nuttx/pull/13175) Cmake: [arch arm] added initial support for MSYS2
* [#13389](https://github.com/apache/nuttx/pull/13389) cmake: add support for PCI
* [#12516](https://github.com/apache/nuttx/pull/12516) cmake: reuse OpenAMP own CMake script for CMake build
* [#12592](https://github.com/apache/nuttx/pull/12592) cmake: refine sim cmake redefine symbols
* [#13449](https://github.com/apache/nuttx/pull/13449) cmake: Refactor extra_lib tagert,build include_arch path,refine sim link script target
* [#12667](https://github.com/apache/nuttx/pull/12667) cmake: strip file full path to save the code size
* [#13451](https://github.com/apache/nuttx/pull/13451) cmake: support openlibm,dhara,libmcs,lic regex CMake build scripts
* [#12608](https://github.com/apache/nuttx/pull/12608) cmake/add_library: enable library install by default
* [#12714](https://github.com/apache/nuttx/pull/12714) cmake/boards: fix build break on custom board
* [#13085](https://github.com/apache/nuttx/pull/13085) CMakeLists.txt: warning D9002 on Windows + msvc
* [#13253](https://github.com/apache/nuttx/pull/13253) cmake/nuttx_kconfig.cmake: fixed the correct .config path in the buid folder
* [#13276](https://github.com/apache/nuttx/pull/13276) cmake/tricore: filter out nostdlib in linker phase to avoid build break
* [#13499](https://github.com/apache/nuttx/pull/13499) libc: add missing preadv/pwritev in CMakeLists.txt
* [#12700](https://github.com/apache/nuttx/pull/12700) riscv/cmake: fix Toolchain.cmake
* [#12694](https://github.com/apache/nuttx/pull/12694) riscv/k230: fix apps ROMFS cmake
* [#12996](https://github.com/apache/nuttx/pull/12996) riscv/qemu-rv: add RPTUN cmake
* [#12634](https://github.com/apache/nuttx/pull/12634) sim/cmake: enable garbage collection of unused input sections
* [#12721](https://github.com/apache/nuttx/pull/12721) tools/testbuild.sh: add option -N use CMake with Ninja
* [#12805](https://github.com/apache/nuttx/pull/12805) tools/testbuild.sh: added store compilation artifacts for cmake
* [#12724](https://github.com/apache/nuttx/pull/12724) tricore/cmake: add support of cmake build for tricore |
Bug Fixes
* [#12558](https://github.com/apache/nuttx/pull/12558) [bugfix] cmake:fix a few issues during CMake build
* [#12915](https://github.com/apache/nuttx/pull/12915) [bugfix] fix CMake build block when enable LTO
* [#12582](https://github.com/apache/nuttx/pull/12582) Fix cmake for cxd56xx
* [#12581](https://github.com/apache/nuttx/pull/12581) cmake: Fix build failure when -DNUTTX_APPS_DIR is specified
* [#13171](https://github.com/apache/nuttx/pull/13171) CMake: fix CMake compile errors during the protected build mode
* [#13081](https://github.com/apache/nuttx/pull/13081) cmake: fix invalid syntax when generating version.h from tags
|
Architectural Support
New Architectures
Architecture Improvements
* [#12460](https://github.com/apache/nuttx/pull/12460) arch/risc-v/common: provide architecture specific perfmon bindings.
* [#12546](https://github.com/apache/nuttx/pull/12546) arch/riscv: fix NuttSBI PMP config
|
Driver Support
New Driver Support
* [#11605](https://github.com/apache/nuttx/pull/11605) Coresight: add init coresight driver framework
|
Drivers Improvements
Board Support
New Board Support
* [#13248](https://github.com/apache/nuttx/pull/13248) arm: Add support for CSK6011A SOC and CSK6011A-NANO board
* [#11709](https://github.com/apache/nuttx/pull/11709) at32uc3a0: Initial work for SimpleMachines' Mizar32-A
* [#12813](https://github.com/apache/nuttx/pull/12813) boards/esp32s3: Add initial support to the ESP32-S3-Korvo-2 board
* [#13467](https://github.com/apache/nuttx/pull/13467) boards/esp32s3: add support to esp32s3-lhcbit board |
Boards Improvements
* [#12878](https://github.com/apache/nuttx/pull/12878) arm/stm32f103-minimum: Use common board MFRC522
* [#12973](https://github.com/apache/nuttx/pull/12973) board/arm/rp2040/seeed-xiao-studio-rp2040 GPIO configuration
* [#12738](https://github.com/apache/nuttx/pull/12738) board/linum-stm32h753bi: Add support to external sdram
* [#12882](https://github.com/apache/nuttx/pull/12882) board/lm3s6965-ek: restore 128K kflash
* [#12699](https://github.com/apache/nuttx/pull/12699) board/stm32f401rc-rs485: Add support to Device Configuration over Telnet
* [#12737](https://github.com/apache/nuttx/pull/12737) board/stm32f401rc-rs485: Add support to MAX7219 8x8 LED Matrix
* [#13516](https://github.com/apache/nuttx/pull/13516) boards: Update EXAMPLES_SOTEST_DEVMINOR to EXAMPLES_SOTEST_DEVMINOR_MAX
* [#12743](https://github.com/apache/nuttx/pull/12743) boards/arm/rp2040: Userled configuration to Seeed-Stdio RP2040
* [#13142](https://github.com/apache/nuttx/pull/13142) boards/arm/stm32/stm32f4discovery: Add support to RFID MFRC522
* [#13440](https://github.com/apache/nuttx/pull/13440) boards/arm/stm32h7/stm32h745i-disco: Add RPTUN support
* [#12825](https://github.com/apache/nuttx/pull/12825) boards/armv5: Make ARMv5 boards work again
* [#12593](https://github.com/apache/nuttx/pull/12593) boards/stm32: DRV8825 driver
* [#12673](https://github.com/apache/nuttx/pull/12673) boards/esp32[c3|c6|h2|s2|s3]: Ignore etctmp in common board
* [#13124](https://github.com/apache/nuttx/pull/13124) boards/esp32s3_lan9250: deinitialize the ethernet device lan9250
* [#12716](https://github.com/apache/nuttx/pull/12716) boards/esp32s3: Increse the default stack size for usbnsh
* [#12763](https://github.com/apache/nuttx/pull/12763) boards/imx93-evk: add sdimage cleanup
* [#12876](https://github.com/apache/nuttx/pull/12876) boards/lm3s6965-ek: fix memory.ld for PROTECTED
* [#12598](https://github.com/apache/nuttx/pull/12598) boards/MIMXRT1020-EVK: Fix board I2C code to adapt to last IMXRT I2C/pi…
* [#13137](https://github.com/apache/nuttx/pull/13137) boards/risc-v/esp32c6/esp32c6-devkitm: Add support to RFID MFRC522
* [#12869](https://github.com/apache/nuttx/pull/12869) boards/rv-virt: unify RV32 config names
* [#13226](https://github.com/apache/nuttx/pull/13226) boards/sim: Defconfigs for nand and mnemofs
* [#12898](https://github.com/apache/nuttx/pull/12898) boards/xtensa/esp32s3: ESP32S3 Emmc Support
* [#13478](https://github.com/apache/nuttx/pull/13478) boardctl: add board control api to start slave core
* [#13273](https://github.com/apache/nuttx/pull/13273) boardcrtl: change BOARDCTL_TESTSET to BOARDIOC_SPINLOCK
* [#12867](https://github.com/apache/nuttx/pull/12867) LTDC for Linum board
* [#12987](https://github.com/apache/nuttx/pull/12987) nuttx/boards:Uniform initialization format for init_array.
* [#12544](https://github.com/apache/nuttx/pull/12544) riscv/nuttsbi: add MTVAL argument
* [#12637](https://github.com/apache/nuttx/pull/12637) Usbnsh to seed-xiao-rp2040 board
* [#12713](https://github.com/apache/nuttx/pull/12713) zynq_mpsoc/zcu111: add support for gpio and board auto led |
File System
New FS
* [#13001](https://github.com/apache/nuttx/pull/13001) V9FS For NuttX |
Significant Improvements
* [#13514](https://github.com/apache/nuttx/pull/13514) add sched note for littlefs/romfs/rpmsgfs
* [#12863](https://github.com/apache/nuttx/pull/12863) Fix the location of tmpfs pwrite write and Fixed some code check warnings
* [#13500](https://github.com/apache/nuttx/pull/13500) fs.h: fix a comment in file_operations
* [#12532](https://github.com/apache/nuttx/pull/12532) fs: add backtrace to where file opens
* [#13150](https://github.com/apache/nuttx/pull/13150) fs: add fs_heap, support shm/tmpfs/pseudofile with indepent heap
* [#12587](https://github.com/apache/nuttx/pull/12587) Fs: backtrace tweak
* [#13512](https://github.com/apache/nuttx/pull/13512) fs: Dump the list of files when the file description runs out
* [#13194](https://github.com/apache/nuttx/pull/13194) fs: nfs: Fix nfsmount error
* [#12978](https://github.com/apache/nuttx/pull/12978) fs: Rename node with inode.
* [#12969](https://github.com/apache/nuttx/pull/12969) Fslock optimize
* [#12937](https://github.com/apache/nuttx/pull/12937) fs/mnemofs: Fix journal log rw issue, rw size issue
* [#12945](https://github.com/apache/nuttx/pull/12945) fs/hostfs: Replace strcpy with memcpy
* [#13443](https://github.com/apache/nuttx/pull/13443) fs_inode:Change the type of i_crefs to atomic_int
* [#13458](https://github.com/apache/nuttx/pull/13458) fs_dup2 bug fix, memleak
* [#13573](https://github.com/apache/nuttx/pull/13573) fs/chmod/fchmod/lchmod: only set permissions by mode_t and ignore othjer bits
* [#12931](https://github.com/apache/nuttx/pull/12931) fs/epoll: Optimize implementation details
* [#12615](https://github.com/apache/nuttx/pull/12615) fs/fat: Fix Fseek Bug When File Size Is Multiple of Cluster Size
* [#12548](https://github.com/apache/nuttx/pull/12548) fs/fat/fs_fat32.c Return EOF when reading past the end of the file.
* [#13521](https://github.com/apache/nuttx/pull/13521) fs/dump: correct SCHED_DUMP_ON_EXIT to DUMP_ON_EXIT
* [#12990](https://github.com/apache/nuttx/pull/12990) fs/mmap: Fix build warning with [-Wmaybe-uninitialized].
* [#13132](https://github.com/apache/nuttx/pull/13132) fs/procfs: Supports any number of thread displays
* [#13123](https://github.com/apache/nuttx/pull/13123) fs/shmfs:Avoid an integer overflow
* [#12790](https://github.com/apache/nuttx/pull/12790) fs/spiffs: Return OK on `spiffs_fstat` success
* [#13407](https://github.com/apache/nuttx/pull/13407) fs/mmap: Add MADV_HUGEPAGE definitions
* [#13406](https://github.com/apache/nuttx/pull/13406) fs/mmap: Ensure anonymous pages are initialized to zero
* [#12661](https://github.com/apache/nuttx/pull/12661) fs/mnemofs: Adds Block Allocator
* [#12668](https://github.com/apache/nuttx/pull/12668) fs/mnemofs: Add parent iterator and path methods.
* [#12680](https://github.com/apache/nuttx/pull/12680) fs/mnemofs: Add LRU and CTZ methods
* [#12683](https://github.com/apache/nuttx/pull/12683) fs/mnemofs: Add journal methods.
* [#12702](https://github.com/apache/nuttx/pull/12702) fs/mnemofs: Add master node and r/w methods
* [#12943](https://github.com/apache/nuttx/pull/12943) fs/mnemofs: Autoformat
* [#12808](https://github.com/apache/nuttx/pull/12808) fs/mnemofs: Refactoring path logic, direntry size bug fix, open free bug fix
* [#12658](https://github.com/apache/nuttx/pull/12658) fs/mnemofs: Setup and VFS methods
* [#13475](https://github.com/apache/nuttx/pull/13475) fs/mount: add ftl proxy to mount block filesystem on mtd device
* [#13258](https://github.com/apache/nuttx/pull/13258) fs/mq_open: revise comments
* [#13326](https://github.com/apache/nuttx/pull/13326) fs/files_extend: Bug Fix
* [#13331](https://github.com/apache/nuttx/pull/13331) fs/inode: using inode reference to indicate unlink and simply code
* [#13077](https://github.com/apache/nuttx/pull/13077) Fsnotify
* [#12942](https://github.com/apache/nuttx/pull/12942) Hostfs support get filepath by ioctl
* [#12817](https://github.com/apache/nuttx/pull/12817) procfs/meminfo: free delaylist before reporting
* [#13058](https://github.com/apache/nuttx/pull/13058) procfs/mempool: fix did not remove when pool not enabled
* [#13092](https://github.com/apache/nuttx/pull/13092) rpmsgfs: fix out of bounds access caused by data transmission farmat
* [#13063](https://github.com/apache/nuttx/pull/13063) rpmsgfs: set fs type to rpmsgfs when mount through rpmsgfs
* [#13348](https://github.com/apache/nuttx/pull/13348) smartfs procfs: fix double declare g_smartfs_operations
* [#12939](https://github.com/apache/nuttx/pull/12939) rpmsgfs_client:Fix error return exception
* [#12941](https://github.com/apache/nuttx/pull/12941) rpmsgfs: support filelock
* [#13098](https://github.com/apache/nuttx/pull/13098) tmpfs: old data was loaded when SEEK_SET beyond end of the file
* [#13490](https://github.com/apache/nuttx/pull/13490) vfs:fix a type mismatch issue and a typo |
Networking
Improvements
Bug Fixes
Security Issues Fixed In This Release
Compatibility Concerns
Changes to Build System
Renamed or Modified Kconfig Options
Known Problems In This Release
More Information
How to Download
Release artifacts for all current and past NuttX releases can be downloaded at:
How to Clone the Git Repository
The Apache NuttX project uses Git SCM as its version control system.
There are two primary repositories:
- nuttx - The real time operating system itself.
- apps - Optional applications and example programs for the operating system. You can use this repository or make your own custom one.
The main "Single Source of Truth" repositories are hosted by the ASF:
These are synchronized with repositories hosted at GitHub:
How to Contact the Community
The main forum for project communication, to ask a question, get involved, or contribute to NuttX, is our mailing list, dev@nuttx.apache.org. The list is publicly archived and searchable at https://lists.apache.org/list.html?dev@nuttx.apache.org. For more information, see NuttX Community.
Enthusiastic Contributors Welcome!
NuttX is a free open-source project. If you'd like to participate, whether it's to enhance documentation (even these release notes) or dive into the nitty gritty of some low-level drivers, please join us! You can join the conversation at our dev mailing list by emailing dev-subscribe@nuttx.apache.org. The mailing list is open to the public and archived. You can browse older messages at https://lists.apache.org/list.html?dev@nuttx.apache.org.