Apache NuttX-12.0.0 Release Notes

Apache NuttX-12.0.0 Release Notes
What’s New In This Release

What’s New In This Release

Core OS Improvements

#7493 sched: clock: adjust clock function to support tick
#7200 sched: clock: Rename g_system_timer to g_system_ticks
#6936 sched: cpuload: fix cpuload error
#7318 sched: env: Skip the envirnment variable duplication of kernel thread
#7490 sched: getprioritymax: handle invaild policy as posix style
#7563 sched: group_setupidlefiles: fall back to /dev/null if /dev/console is disabled
#7235 sched: irq: Refactor irq_spinlock.c
#7469 sched: mutex: NXMUTEX_INITIALIZER should enable priority inheritance
#7095 sched: mqueue: fix resource leak in mq_timedsend()
#7088 sched: msgq: add support of System V message queue
#7838 sched: nx_bringup: Set the initial stack size in kernel build as well
#7492 sched: posix/timer: handle invaild timerid correctly
#6905 sched: prctl: Replace strncpy with strlcpy for safety
#7267 sched: sem: don’t clear waitobj when do sem recover
#6967 sched: semaphore: add sem_count temporary variable to improve performance
#6318 sched: semaphore: fix priority boost restoration for priority inheritance
#7456 sched: semaphore: add the wdog judge before cancel
#7583 sched: signal: fix sigtimedwait error handling
#7327 sched: spawn: Add the dummy task_spawnattr_xxxstackyyy in the kernel mode
#7485 sched: spawn: Rename task_spawnattr_[get set]stack[size addr] to posix_spawnattr_[get set]stack[size addr]
#7597 sched: task: task_getpid: getpid should return process id not thread id
#7018 sched: wqueue: change single queue to double queue to improve speed
#6996 sched: wqueue: fix visual studio Compiler Error C2059
#7477 sched: change the type of tg_joinlock, mm_lock and md_lock from sem_t to mutex_t
#7019 sched: fix corner case wd_cancel assert crash
#7062 sched: fix kasan report error when open CONFIG_DEBUG_MM
#6948 sched: fix macro “SCHED_NOTE_PRINTF” requires 3 argumnets, but only 1 given
#7322 sched: fix runtime error UBSan(division by zero)
#7792 sched: Improve UBSan configuraion
#7159 sched: merge waitsem and msgwaitq
#7791 sched: move _assert to kernel space.
#7837 sched: move sched_note.c to drivers/note
#7810 sched: pthread_mutex_timedlock never returns EINTR
#7816 sched: Remove intr and EINTR from pthread mutex
#7276 sched: Minor fix backtrace config
#7459 sched: use pid to check idle task
#7196 sched: Optimize sched_note_begin/end
#7471 sched: Remove the unnecessary (FAR sem_t *) cast
#6862 sched: Remove the unnecessary weak_function
#6958 sched: Remove volatile from the task list
#7808 sched: move common assert logic together.
#6987 sched: semaphore and mqueue task list optimize
#7339 sched: Simplify HAVE_GROUP_MEMBERS logic
#6866 sched: Simplify the cpuload process
#7511 sched: remove sched_continue, merge code
#7599 sched: remove nxsched_remove_blocked from up_unblock_task
#7364 sched: Support the stack size and address for posix_spawn and kernel mode
#7415 sched: Pass idle thread envionment variables to the child task through copy
#7454 sched: remove the unused function nx_wait and nx_waitid
#7605 sched: mqueue: make mqueue and mqueue sysv can disable separately
#7656 sched: merge up_block_task and up_unblock_task
#7065 sched: wqueue: fix race-condition on work_queue
#7815 mm: iob: reserved bytes should be updated after each iteration
#7714 mm: iob: new function iob_reserve() to adjust headroom offset
#6836 mm: iob: Remove iob_user_e enum and related code
#6834 mm: iob: modify iob to support header padding and alignment features
#7066 mm: kasan: use init value to avoid kasan used before bss clear
#7509 mm: kasan: fix kasan race-condition #
#6804 mm: mempool: support mempool and show mempool info in procfs
#7450 mm: mempool: support multiple-mempool and enhance mempool
#7581 mm: mm_heap: Change TCB_FLAG_HEAPCHECK to TCB_FLAG_HEAP_CHECK
#7449 mm: mm_heap: optimize MM_XX_SHIFT define
#7495 mm: mm_heap: add debug assert to check the alignment problem
#6928 mm: mm_heap: Avoid assertion violation in case of kmm_free(NULL)
#7662 mm: mm_size2ndx: using flsl to calculate the ndx
#7618 mm: shm: Implement a generic utility API for creating / destroying shm mappings
#7607 mm: shm: Implement shmem drivers for risc-v target
#7134 mm: ubsan: UBSan option should be turned on if SIM_UBSAN enabled
#7301 mm: ubsan: Ubsan
#7285 mm: ubsan: Fixed undefined behavior in UBSan.
#6986 mm: ubsan: Allow custom the sanitizer in Kconfig
#6881 mm: ubsan: debug: Introduce portion of UBSan
#6979 mm: umm_heap: Do not register Umem if CONFIG_BUILD_KERNEL=y
#6995 mm: Check the function result with suitable macro.
#7457 mm: Check for memory leaks in tasks
#6999 mm: fix runtime error by UBSan #
#7536 mm: Refine mm Kconfig
#7551 mm: Remove the unused macro MM_IS_ALLOCATED
#7540 mm: Restore the return type of mm_lock from bool to int
#7424 libc: Add %T and %R conversion specifiers to strftime(3)
#7025 libc: Add check in roundx() functions for infinite or NaN cases
#7724 libc: Add Hexadecimal parsing for strtof
#7661 libc: Add libc_stubs functions
#6898 libc: add lib_dump utils
#7198 libc: add obstack
#7003 libc: add timingsafe_bcmp to libc #
#6861 libc: Add some missing functions to libc.csv
#7345 libc: Added flush of the read buffers when a file is reopened.
#7224 libc: allow to enable LIBC_NETDB directly from menuconfig
#7545 libc: atexit: correct return value of exitfunc lock
#7175 libc: arm: use builtin routines instead of aliases of __aeabi_mem*
#6856 libc: crc: Add full suffix to avoid the the penitential symbol collision
#6841 libc: dns_client: directly initialize g_dns_servers and remove dns_initialize directly
#7117 libc: Ensure key returned from ftok is unique
#7567 libc: fine tune mutex/sem_t implementation
#6959 libc: Fix wrong report by UBSan
#6991 libc: Fixed pow() for negative bases.
#6952 libc: fixes in strtod parser.
#7349 libc: gmtimer: Fixed range of tm_yday.
#7774 libc: hex2bin: Remove the unused declaration
#6806 libc: Implement memfd on top of tmpfs
#7688 libc: include: unified stream read and write interface
#7677 libc: lib_libvsprintf: fix the float point print bug
#6868 libc: libc.csv: Add new found missing functions
#7343 libc: libfread: Fixed error flag when reading a write-only file.
#6783 libc: localtime: fix some issues and update to consistent with mainline
#7657 libc: machine: xtensa: make longjmp safe against context switch
#7681 libc: Minor stream interface improvement
#7700 libc: Minor fix for vsprintf and stream
#6840 libc: move crc8.h, crc16.h and crc32.h from include to include/nuttx
#7372 libc: move param check to sem_xx level
#7185 libc: Move queue.h from include to include/nuttx
#7820 libc: netdb: add proto.c
#7289 libc: newlib/impure: declare thread specific file only if NEWLIB is defined
#7281 libc: newlib/impure: sync with newlib(4.2.0) reent update
#7667 libc: obstack, mm/circbuf: Fix non-standard usage of void* arithmetics
#7716 libc: optimize the code of the printf
#6954 libc: Port strtod fixes to strtof, strtold and improve comments
#7565 libc: pthread_barrier:don’t destroy when barrier used
#7644 libc: pthread: Change stacksize type from long to size_t
#7005 libc: pthread: fix typo with CONFIG_PTHREAD_MUTEX_DEFAULT_PRIO_INHERIT
#6805 libc: Remove CONFIG_LIBC_ERR
#7116 libc: Remove LIBC_ERR from libs/libc/misc/Kconfig
#7151 libc: Remove the reference of _stext/_etext from lib_cxx_initialize.c
#5070 libc: semaphore: sem_init change defult protocol
#7710 libc: signal: correct the return values
#7499 libc: spawn: Always build lib_psa_[get set]stacksize.c
#6152 libc: stdio: Add stdio file locking functions
#7770 libc: stdio: add total_len back
#7310 libc: stdio: fix ungetc operation
#7715 libc: stream: add putc interface for mtd/blk stream.
#7694 libc: stream: Remove \n special handle from syslogstream_putc
#7772 libc: stream: Rename [lib_stream_](put get) to [lib_stream_](putc getc)
#7348 libc: strftime: Added support for the %w format specifier.
#7455 libc: time: fix regression in clock_calendar2utc
#7440 libc: time: mktime normalize struct tm
#7819 openamp: don’t depend on pen-amp.zip and libmetal.zip in the git mode
#7534 openamp: update openmap lib version to 2022.10.0
#7279 openamp: libmetal: support other arch sim host
#7444 openamp: fix rptun don’t wait issue when get tx patyload buffer
#6910 syscall: fix task_testcancel header file
#7557 syscall: prctl syscall is present unconditionally
#6824 syscall: remove directory related function declaration since it become normal libc api after #6803
#7735 Add linux-like panic notifier.
#6994 binfmt: Check return pointer.
#7498 binfmt: elf_addrenv_free select addrenv before up_addrenv_destroy
#7473 Call nxsem_destroy or nxmutex_destry in the error path
#6983 compiler.h: Rename inline_function to always_inline_function
#7561 crypto: random_pool:add a new api arc4random
#7516 fix a mistake about nxmutex & sem
#6961 Fixed format specifier in various prints.
#7532 hwspinlock: add hwspinlock driver for multi CPU
#7472 Initialize global mutext/sem by NXMUTEX_INITIALIZER and SEM_INITIALIZER
#6926 list.h: Change inline function to macro as much as possbile
#7517 nxmutex: minor fix for mutex lock mismatch
#6965 nxmutex: replace nxsem when used as a lock
#6966 queue: Change some queue function to macro
#6906 Replace all strncpy with strlcpy for safety
#7590 sys: boardctl: Add more reset causes to enum
#7033 timer: add arch_alarm tick interface
#7115 time: Typedef time_t to uint64_t if CONFIG_SYSTEM_TIME64 is defined
#6981 up_nputs: fix AddressSanitizer: global-buffer-overflow problem
#7420 Update errno to match asm-generic

Build System Improvements

#7419 Makefile: Remove INCDIROPT
#7118 Remove EXPERIMENTAL from some long existent config
#7043 Kconfig: EXPERIMENTAL: Add help text and change prompt label
#7052 Config.mk: Add COMPILEZIG
#6885 Make the full image instrumentation configurable
#7272 tools: Added Kconfig option for ccache.
#7048 tools: Optimizing mkallsyms scripts with python
#7103 tools: configure.sh: Update USAGE for custom out-of-tree boards
#7081 tools: b16.c: Fix usage text
#7080 tools: pic32: Add description, fix nxstyle, fix typos
#7076 tools: Remove duplicate calls and optimize compilation speed
#7569 tools: Win.mk Fix error in Windows native build
#7556 tools: incdir.bat
#7849 tools: Fix ccache: error: Could not find compiler “x86_64-elf-gcc” in PATH
#7552 tools: ignore errors when indir does not exist
#7658 tools: Config: Fix error caused by double quotation in Windows native build
#7357 tools: Fix an issue that libboard.a is not exported
#7686 tools: nuttx-gdbinit: restore the context at the end of each command
#7594 tools: configure.bat: Update USAGE
#7765 tools: define.bat: sync design of define.bat with define.sh to uniform usage
#7572 tools: Fix various error in Windows native build
#7560 tools: Fix some buid error
#7529 tools: Fix some configure error in Windows native build

Architectural Support

New Architecture Support

#7011 arch: arm: add chip GD32F450 of GD32MCU
#7125 arch: arm: initial support for NRF5340
#7443 arch: sparc: add initial support for S698PM chip and SMP
#7692 arch: arm: arm64: Add support for PINE64 PinePhone

Architecture Improvements

#7804 arch: arch_alarm: don’t init local variable for fpu test case fail
#7160 arch: Change the linker generated symbols from uint32_t to uint8_t *
#6919 arch: common: Fix arm_allocateheap.c for BUILD_KERNEL
#7503 arch: Fix linking of multiple preprocessed linker script files
#7208 arch: makefile: preprocess link script to make configure more flexibly
#7140 arch: Move _vector and g_current_regs definition to common place
#7621 arch: Refine SCTLR register configuration to confirm the spec
#7463 arch: Remove the unnecessary nosanitize_address from backtrace source code
#7430 arch: Replace __builtin_bswapxx with bswapxx
#7106 arch: Remove FAR from 32bit/64bit arch
#6833 arch: SMP: fix crash when switch to new task which is still running
#7610 arch: rename arch special function name
#7436 arch: arm: Added breakpoint in stack overflow trap.
#7100 arch: arm: add support for armclang compiler(AC6)
#7818 arch: arm: add syscall SYS_save_context support for old arm and armv7-r
#7448 arch: arm: added DHCSR definitions for ARMv7 & ARMv8.
#7187 arch: arm: armlink: add support of link time optimization(lto)
#7767 arch: arm: arm_syscall: add SYS_save_context for armv7-a
#7283 arch: arm: backtrace: rename arm_backtrace_thumb.c to arm_backtrace_sp.c
#7260 arch: arm: backtrace: add support for EHABI(Exception Handling ABI) stack unwinder
#7119 arch: arm: correct global symbol name
#6968 arch: arm: change context switch to macro
#7120 arch: arm: declare vector array default type to read-only
#7173 arch: arm: declare vector array default type to read-only
#7502 arch: arm: document the clever trick of PRI?32 macros
#7154 arch: arm: fallback to common toolchain if armeb(endian big) is unavailable
#7068 arch: arm: fix backtrace busyloop
#7158 arch: arm: fix conditional compilation term (#else)
#7755 arch: arm: generating assemble code in ARM states by default
#7827 arch: arm: Kconfig: add cortex-m85 config
#7128 arch: arm: makefile: linking libraries with GCC should use option -l
#7830 arch: arm: qemu-armv8a/netnsh: Set iob buffer size to 1514 to improve performance
#7165 arch: arm: redefine the linker symbols as armlink style
#7824 arch: arm: only compare callee-saved registers for fpu
#7337 arch: arm: Remove the unnecessary cast for main_t, NULL and argv
#7775 arch: arm: sync ARM_THUMB support from cortex-a
#7653 arch: arm: llvm/clang: add support for LLVMEmbeddedToolchainForArm release-15.0.2
#7212 arch: arm: armv[7 8]-m: Implement up_invalidate_icache
#7288 arch: arm: armv7-a: add l2 page mapping interface
#7064 arch: arm: armv7-a: icache also need SMP cache coherency configuration
#7141 arch: arm: armv7-a: mmu enable should after enable SMP
#7149 arch: arm: armv7-a: remove the code for CONFIG_ARCH_PGPOOL_MAPPING=n
#7290 arch: arm: armv7-a: set normal memory shareable in smp mode
#7171 arch: arm: armv7-r: correct include path of chip.h
#7718 arch: arm: armv7-r: correct the wrong usage of ARMV7A_XX marco
#7577 arch: arm: armv7-r: fix arm_gic_nlines redefines
#7190 arch: arm: armv7-r: fix build break on armlink
#7155 arch: arm: armv7-r: remove incorrect include header “addrenv.h”
#7773 arch: arm: armv7-r: sync ARM_THUMB support from cortex-a
#7513 arch: arm: armv7-a/r: add isb after CACHE and TLB operations.
#7195 arch: arm: armv7-a/r: SMP hande all cores start at same time
#7338 arch: arm: armv7-a/r: Don’t define fiq stack if CONFIG_ARMV7A_DECODEFIQ=n
#7751 arch: arm: armv7-a/r: thumb: force assembler files to be interpreted as Thumb code
#7129 arch: arm: armv7-a/r: Implement up_affinity_irq
#7144 arch: arm: armv7-a/r: only primary can do invalidate_dcache_all() at startting
#7113 arch: arm: armv7-a/r: refact cp15_cache functions
#7045 arch: arm: armv7-a/r: use SRS and RFE for exception handler
#7063 arch: arm: armv7-a/r: use generic timer to realize arm_timer
#7067 arch: arm: armv7-a/r: cache: fix up_clean_dcache() slowly
#7099 arch: arm: armv7-a/r: modify regs index to improve exception performance
#7384 arch: arm: armv8-m MPU fixes
#7423 arch: arm: toolchain: update toolchain comment to avoid confusion
#7406 arch: arm: cxd56xx: Fix stall bulk xfer when sending 512 byte data
#7405 arch: arm: cxd56xx: Fix deadlock by using GNSS CEP file on SPI-Flash
#6842 arch: arm: imx6: enet update
#7096 arch: arm: imxrt: add support for PWM synchronization
#7164 arch: arm: imxrt: add support for ADC triggering by an external signal
#7593 arch: arm: imxrt: add Support for NXP TJA1103 PHY
#6989 arch: arm: imxrt: encoder: add support for QEIOC_GETINDEX ioctl
#7146 arch: arm: imxrt: disable PWM synchronization when XBAR connection fails
#7178 arch: arm: lc823450: Fix to boot
#6813 arch: arm: kinetis: EDMA update
#7111 arch: arm: phy62xx: support MTDIOC_ERASESTATE
#7142 arch: arm: sama5: add SAMA5D2 support for SAMA5 xdma driver
#7698 arch: arm: sama5: Corrects PIO errors and omissions for SAMA5D2
#7740 arch: arm: sama5: fix recursive dependency
#7702 arch: arm: sama5: Fix SAMA5D2 ADC and TSD problems
#7730 arch: arm: sama5: Fixes for SAMA5D2 Flexcom USART
#7761 arch: arm: sama5: SAMA5D2 TDC, ADC and TC Corrections
#7112 arch: arm: samv7: fix random corruption of data after SDIO RX DMA transaction
#6830 arch: arm: samv7: get TX DMA running for HSMCI interface
#6814 arch: arm: s32k1xx: EDMA clean up and loop support
#7758 arch: arm: s32k1xx: LPI2C Add DMA support and fix compile
#6821 arch: arm: s32k1xx: LPI2C Add DMA support
#6882 arch: arm: S32K1xx: Fixed PM bug for clockconfig
#7216 arch: arm: s32k1xx: Fix FlexIO timer register access macros
#7217 arch: arm: s32k1xx: Allow building with debug features and no console.
#7737 arch: arm: s32K3xx: RAM fixes
#7759 arch: arm: s32k3xx: EDMA add looping and Error handling
#7757 arch: arm: s32k3xx: EDMA fix DMAMUX1 access violation
#7784 arch: arm: s32k3xx: EDMA Set Backdoor for DTCM memory map
#7538 arch: arm: stm32_eth: Fix in assertion parameters.
#7611 arch: arm: stm32: fix ADC clock after ef517ed
#7592 arch: arm: stm32: 1wire: Don’t free the context if the reference doesn’t equal zero
#7385 arch: arm: stm32: socketcan: fix the EFF flag for received frames
#7347 arch: arm: stm32: socketcan: fixes for arm_netinitialize
#7346 arch: arm: stm32f7: add SocketCAN support
#6930 arch: arm: stm32f7: fix syslog formats
#6831 arch: arm: stm32f7: fix cache invalidation issue in Ethernet RX
#6889 arch: arm: stm32f7: Kconfig: add STM32F7_SYSCFG
#6810 arch: arm: stm32f7: port ADC driver from arch/stm32
#6811 arch: arm: stm32f7: port FOC driver from arch/stm32
#6809 arch: arm: stm32f7: port PWM driver from arch/stm32
#6880 arch: arm: stm32f7: stm32_otghost.c: fix undeclared ret
#7763 arch: arm: stm32f7: stm32f746 usb
#7258 arch: arm: stm32h7: Add support for dual bank flash
#7359 arch: arm: stm32h7: Add support for stm32h7b3xx MCU’s flash
#7417 arch: arm: stm32h7: Allow the use of the Network Monitor via polling
#7017 arch: arm: stm32h7: kconfig
#7401 arch: arm: stm32h7: multiple fixes for stm32h7 flash interface
#6984 arch: arm: stm32h7: stm32_fdcan_sock: fix the FDCAN_LOOPBACK config macros
#7174 arch: arm: stm32h7: SDMMC fix unaligned access for buffers not on 32 bit boundaries
#7194 arch: arm: stm32h7: stm32_fdcan_sock: reserve space for timeval struct in the int…
#6875 arch: arm: stm32l4: ADC: Change hardware trigger configuration
#7167 arch: arm: stm32l5: fix conditional compilation term (#else)
#7162 arch: arm: stm32u5: fix conditional compilation term (#else)
#7166 arch: arm: stm32wl5: fix conditional compilation term (#else)
#6781 arch: arm: stm32wl5: Multiple improvements for stm32wl5 board nucleo-stm32wl5jc
#6998 arch: arm: rp2040: Added SMART filesystem to RP2040 #
#7037 arch: arm: rp2040: Add watchdog driver support to RP2040
#7044 arch: arm: rp2040: Code Cleanup
#7036 arch: arm: rp2040: Eliminate un-needed wait in rp2040 SMART filesystem
#7021 arch: arm: rp2040: Fix race condition in RaspberryPi Pico W WiFi
#7321 arch: arm: rp2040: Use the correct marcro name for RP2040_UART0_BASE
#7029 arch: arm: telink: add custom setjmp implementation for tlsr82.
#7204 arch: arm: tlsr82: move peripherals pin config to board.h
#7172 arch: arm: tlsr82: replace incompatible instruction sets to internal implement
#7133 arch: arm: tlsr82: serial: clear tx index also when uart_reset called.
#7130 arch: arm: tlsr82: Use flase_read ins of memcpy
#7630 arch: arm64: add support for Generic Interrupt Controller Version 2
#7304 arch: arm64: add Cortex-A57 and Cortex-A72 configurations
#7362 arch: arm64: arm64_arch_timer: delete unused includes
#7256 arch: arm64: arm64_mmu: add mmu_nxrt_config
#7295 arch: arm64: cleanup defconfigs
#7745 arch: arm64: Fix qemu_pl011_txint() in qemu_serial.c
#7262 arch: arm64: qemu/qemu_boot: fix wrong memory size
#7623 arch: arm64: Move group_addrenv to arm64_syscall_switch
#7261 arch: arm64: update to follow NuttX C Coding Standard
#6815 arch: mips: pic32mx: add option to disable JTAG at runtime
#6962 arch: risc-v: addrenv #
#7246 arch: risc-v: address environments: Add basic sanity checks for section boundaries
#7252 arch: risc-v: BUILD_KERNEL + SMP
#6957 arch: risc-v: Dump trap val in exception handler
#6817 arch: risc-v: Fix kernel MMU mapping for L3 table
#7744 arch: risc-v: Fix nsec overflow in riscv_mtimer_current()
#6963 arch: risc-v: Fix up_check_tcbstack() for CONFIG_ARCH_ADDRENV=y
#7242 arch: risc-v: Introduce g_percpu_spin in riscv_percpu.c
#7249 arch: risc-v: Introduce RISCV_IPI macro for SMP
#6818 arch: risc-v: Implement riscv_sbi_set_timer
#7137 arch: risc-v: Remove FPU support from qemu-rv
#7823 arch: risc-v: mmu-mappings: Mark kernel page tables as NOLOAD to save ROM space in kernel
#7229 arch: risc-v: bl602: Add initial DMA support, including SPI over DMA.
#7280 arch: risc-v: bl602/dma: Fix possible call of null pointer
#7263 arch: risc-v: bl602: Fix bug in lli functionality for dma.
#7228 arch: risc-v: qemu-rv: Add M-timer handling for BUILD_KERNEL
#7221 arch: risc-v: qemu-rv: Fix qemu_rv_start_s() for S-mode
#7244 arch: risc-v: qemu-rv: Fix build errors in chip.h for BUILD_KERNEL + SMP
#6848 arch: risc-v: qemu-rv: Fix high CPU usage in SMP mode
#7254 arch: risc-v: qemu-rv: Fix timer and IPI handling for BUILD_KERNEL+SMP
#7259 arch: risc-v: qemu-rv: Refactor the entry point name for BUILD_KERNEL
#7829 arch: risc-v: esp32: Fix maximum I2C FIFO size (now SSD1306 will work)
#7822 arch: risc-v: esp32[-S2/-S3]: Refactor and rename linker scripts
#7800 arch: risc-v: esp32: Optimize macro and ensure overwrite protection
#7790 arch: risc-v: esp32: Modify REG_[GET/SET]_FIELD to use [get/set]reg32
#7817 arch: risc-v: es32c3: improve passthrough performance by iob offload
#7637 arch: risc-v: esp32c3: fix i2c bug of timout
#7214 arch: risc-v: esp32c3: Fix retrieval for linker-defined symbol
#6988 arch: risc-v: esp32c3: Fix some UBSAN shift-out-of-bounds warnings
#7439 arch: risc-v: esp32[-s2/-s3/-c3]: Re-sort SPI Flash configs
#7445 arch: risc-v: fix bl602 i2c sem init mistake
#7060 arch: risc-v: mmu: Fix L3 mappings for kernel, and mpfs protected mode user space
#7270 arch: risc-v: mpfs: Add a config option for enabling L2 cache
#7460 arch: risc-v: mpfs: Add a configuration flag for SD-card card detec…
#7203 arch: risc-v: mpfs: add conf flags for ddr
#7047 arch: risc-v: mpfs: emmcsd: allow switching from SD to eMMC
#7092 arch: risc-v: mpfs: emmcsd: further enhance the clocking
#7075 arch: risc-v: mpfs: emmcsd: provide options for selecting clk speed
#7526 arch: risc-v: mpfs: Fix the section align mask checks
#6911 arch: risc-v: mpfs: Fixes for MSSIO GPIO configurations
#7507 arch: risc-v: mpfs: ihc rework
#6922 arch: risc-v: mpfs: ihc: fix performance issue
#6902 arch: risc-v: mpfs: ihc: update vq ids
#6872 arch: risc-v: mpfs: ihc: don’t use semaphores with OpenSBI vendor calls
#7461 arch: risc-v: mpfs: Lower the defaul…
#7606 arch: risc-v: mpfs: Mark .start section attributes explicitly
#6879 arch: risc-v: mpfs: Make entrypoint table run-time configurable
#7527 arch: risc-v: mpfs: opensbi: fix random boot failures
#6878 arch: risc-v: mpfs: opensbi: Add the ddr memory region back to opensbi ld script
#6820 arch: risc-v: mpfs: Remove the ddrstorage section from the OpenSBI package
#7230 arch: risc-v: mpfs: Set PHY speed advert after PHY …
#7091 arch: risc-v: mpfs: Stop the DDR training once it is completed
#6953 arch: risc-v: mpfs: usb: fix cppcheck findings
#6951 arch: risc-v: mpfs: usb: fix infinite loop issue
#7041 arch: risc-v: mpfs: usb: fix usb restart
#7013 arch: risc-v: mpfs: usb: provide more endpoints
#7783 arch: sim: add fb poll notify support
#7798 arch: sim: add v4l2 driver for sim
#6933 arch: sim: added gcov dump on application exit.
#6935 arch: sim: add bth4 bridge codes
#6897 arch: sim: add windows host simulate support
#6903 arch: sim: Assign virtio vring notifyid to RSC_NOTIFY_ID_ANY
#7015 arch: sim: fix signal crash in SMP mode
#7380 arch: sim: fix MTU mismatch on TAP device in host route mode
#7334 arch: sim: fix tx pipeline in netdriver to avoid delaying packets.
#7771 arch: sim: Make the naming consistent with each other
#7779 arch: sim: netdriver: set ipv6 addr to host route
#7170 arch: sim: remove stderr in the function renaming list
#6852 arch: sim: remove up_smpsignal.o and up_touchscreen.o from REQUIREDOBJS
#6883 arch: sim: set CMDLINE env to the argument user pass to nuttx
#7717 arch: sim: sim_alsa.c: add mp3 offload playback on sim
#7282 arch: sim: support multiple tapdev for sim
#7655 arch: sim: Unify the host soruce file naming
#6908 arch: sim: wchar_t: fix visual studio Compiler Error C2371
#7335 arch: sparc: add support of spin_lock for LEON3 and LEON4
#7292 arch: sparc: dismiss non-Unicode characters issue
#7579 arch: xtensa: Add missing SENS registers to ESP32
#6993 arch: xtensa: Minor issues to fix ESP32’s TWAI.
#6990 arch: xtensa: Avoid including handlers when no coprocessor is available
#6937 arch: xtensa: Remove non-existent ARCH_HAVE_TESTSET support for ESP32-S2
#7447 arch: xtensa: Define COMMON_CTX_REGS for chips without FPU (e.g. ESP32-S2)
#6924 arch: xtensa: Fix allocation of FPU registers in exception context
#7220 arch: xtensa: Add I2S support for ESP32
#7375 arch: xtensa: Save SCOMPARE1 on context switches
#7336 arch: xtensa: esp32_qencoder: Fix small issues and typos reported by Tiago Medicci
#7328 arch: xtensa: esp32: Add support to Quadrature Encoder
#7236 arch: xtensa: esp32: Allow allocation of user data in SPI RAM
#7361 arch: xtensa: esp32: i2c: Add macros to conform with other peripherals and fix typos
#7596 arch: xtensa: esp32: i2s: implement I2S receiver module
#7501 arch: xtensa: esp32: i2s: use internal buffer to handle multiple audio formats
#7360 arch: xtensa: esp32: i2s: Reduce MCLK multiple to support existing boards
#7373 arch: xtensa: esp32s2: i2s: add support for I2S peripheral
#7537 arch: xtensa: esp32s2: i2s: use internal buffer to handle multiple audio formats
#7363 arch: xtensa: esp32s2: Fix SPI
#6823 arch: xtensa: esp32s2: Add basic support to SPI
#7641 arch: xtensa: esp32s2: i2s: implement I2S receiver module
#7799 arch: xtensa: esp32-s3: Add support for Protected Mode

Driver Support

New Driver Support

#7042 drivers: Add rpmsgmtd support
#7466 drivers: sensors: add LTR308 ambient light sensor
#7546 drivers: audio: Add support for the ES8388 codec (output)
#6869 drivers: misc: rpmsgdev: add rpmsg-device support.
#7442 drivers: misc: rpmsgblk: rpmsg block device support
#7678 drivers: segger: Add Segger RTT stream support
#7609 drivers: mtd: add support for mx25l16 serial flash

Drivers With Significant Improvements

#7429 drivers: audio: add i2s_mclkfrequency method to the I2S lower half
#7225 drivers: btuart driver improvement
#7739 drivers: input: touchscreen_upper: add missing function code comments
#6853 drivers: ioexpander: Honor C89 standard
#7032 drivers: ipcc: enter/leave critical section should in pairs
#6849 drivers: leds: ws2812: Revert SPI frequency change
#7643 drivers: lcd: st7789: fix invalid displayed color
#7277 drivers: lcd: Fix npixels parameter in calls to getrun/putrun
#6837 drivers: lcd: Framebuffer and lcddev buffer usage for LCD displays drivers
#7403 drivers: lte: Include nuttx/fs/ioctl.h instead of wireless.h
#7840 drivers: note: unify spinlock related functions
#7533 drivers: mbox: Don’t reference the nonexistent CONFIG_MBOX
#6827 drivers: misc: Refine rpmsg server initialization sequence
#7255 drivers: misc: rpmsgdev: add rpmsgdev poll() support.
#7753 drivers: misc: rpmsgdev: rpmsgdegv ioctl and seek buf fix
#6904 drivers: mmcsd: Double the MMCSD_IDLE_DELAY from 50ms to 100ms
#7084 drivers: mmcsd: Remove executable permissions from source files
#7077 drivers: mmcsd: mmcsd_spi:reinit spi sd when sd status is wrong.
#7248 drivers: modem: update altair modem
#7408 drivers: modem: alt1250: Change return type of bool function
#7402 drivers: modem: alt1250: Fix poll function
#7612 drivers: motor: foc: remove unused variable
#6829 drivers: mtd: init commit of power-loss resilient cfg
#7046 drivers: mtd: config: Remove MTD_CONFIG_ERASEDVALUE
#7691 drivers: mtd: GD25Q 4 byte read status issue
#7358 drivers: mtd/smart: Fix a compile error in smart_fsck
#7218 drivers: net: Enable NETDEVICES by default
#7251 drivers: net: Fix the skeleton network driver
#7087 drivers: net: w5500: Fix small typo
#7131 drivers: poll: add poll_notify() api and call it in all drivers.
#7255 drivers: rpmsgdev: add rpmsgdev poll() support.
#7287 drivers: rpmsgdev: forward all open/close to server to support complex driver
#7603 drivers: rpmsgdev: support blocked read/write operation
#7575 drivers: rptun: bug fix
#7645 drivers: rptun: fix rptun don’t wait issue when get tx patyload
#7709 drivers: segger: let segger RTT kconfig sink one level
#7634 drivers: segger: make RTT_MODE configurable
#7704 drivers: segger: Refine Kconfig option
#7809 drivers: segger: Systemview add kconfig SEGGER_SYSVIEW_PREFIX for co-existance with other note drivers
#6807 drivers: sensors: rename /dev/sensor -> /dev/uorb
#6939 drivers: sensors: as5048b.c: change initialization of struct to C89 standard
#7547 drivers: sensors: mpu60x0: Remove the simple mpu_lock/mpu_unlock
#7061 drivers: serial: uart_rpmsg: add mutex to dmatx
#6901 drivers: serial: uart: h4: add ioctl interface
#7672 drivers: syslog: Move syslog stream to libc like other stream implementation
#7674 drivers: syslog: support stream as syslog backend.
#6894 drivers: syslog: Refine how to specify iob and ramlog data section
#7659 drivers: syslog: add stream as syslog backend, let crash dump into stream.
#7211 drivers: telnet: Remove io work thread
#7494 drivers: timers: arch_timer: adjust timer/arch_timer to support tick
#7441 drivers: timers: capture: Fix mutual exclusion lock
#7126 drivers: timers: watchdog: Support auto monitor keep alive from timer/oneshot lowerhalf
#7825 drivers: usb: ft232r: fixed build issue
#7805 drivers: usbdev: adb: fixed usbclass steup issue
#7264 drivers: usrsock: Add driver with type of rpmsg interface
#7226 drivers: usrsock: Check CONFIG_NET_USRSOCK_DEVICE instead CONFIG_NET_USRSOCK
#7070 drivers: usrsock: up usrsock refactor
#7754 drivers: video: add support for YUV formats
#7687 drivers: video: add support for V4L2 mmap-ed buffer
#7738 drivers: video: fb: add poll support
#7749 drivers: video: enhance v4l2 compatibility
#7521 drivers: video: Move _VIDIOCBASE and _VIDIOC to include/nuttx/fs/ioctl.h
#7416 drivers: video: Update some features
#7673 drivers: virtio: Add virtio-mmio and virtio-net drivers
#6857 drivers: wireless: Add ioctl cmd to setting PTA prio
#6934 drivers: wireless/bluetooth:add bt bridge codes
#7024 drivers: wireless: Add SIOCGIFFLAGS support to gs2200m.c
#6845 drivers: wireless: Added gSPI mode for Infineon CYW43439 WiFi chip.
#7374 drivers: wireless: bcm43xxx: correct auth status if PSK is invaild
#7543 drivers: wireless: lpwan/sx127x: correct device unlock interface to nxmutex_unlock()

Board Support

New Board Support

#6850 boards: arm: rp2040: Added support for Raspberry Pi Pico W
#7418 boards: arm: stm32wb: Flipper Zero initial support
#7023 boards: arm: tiva: Add tm4c129e-launchpad
#6895 boards: risc-v: esp32c3: Add initial support to esp32c3-devkit-rust-1 board
#7685 boards: sparc: add initial support of s698pm-dkit board
#7548 boards: xtensa: Added support for the ESP32-S2-Kaluga-1 board
#7169 boards: xtensa: initial support for the ESP32-LyraT
#7073 boards: xtensa: ttgo_lora_esp32: Add support to SX1276

Boards With Significant Improvements

#7330 boards: Change CONFIG_SYSTEM_NSH_SYMTAB to CONFIG_NSH_SYMTAB
#7245 boards: Change the linker generated symbols from uint32_t to uint8_t array
#7648 boards: enter/leave critical section should in pairs
#7316 boards: Fix pthread_attr_setstacksize failed in ostest
#7626 boards: iperf: device name will vary across different NICs #
#7351 boards: Update telnetd related config after apps/nshlib change
#7324 boards: Remove the duplicated prototype of CONFIG_INIT_ENTRYPOINT
#7788 boards: Remove the unused function prototype(slcd_getstream)
#7409 boards: arm: gcc: disable coverage analysis temporarily
#7524 boards: arm: remove -funwind-tables from boards Make.defs
#6847 boards: arm: imx6: sabre-6quad: Add netknsh_smp/defconfig
#6826 boards: arm: imx6: sabre-6quad: Add telnetd to netknsh/defconfig
#7604 boards: arm: lpc31xx/ea3131/pgnsh: enable DEFAULT_SMALL to reducing the code size
#7071 boards: arm: rp2040: Add “telnet” configuration to Raspberry Pi Pico W
#7243 boards: arm: raspberrypi-pico: Adjust CONFIG_UART0_TXBUFSIZE for SMP
#6844 boards: arm: samv7: add support for GPIO driver based encoder
#7601 boards: arm: samv7: Add SAMV7’s capability to overwirte pwm pins
#7122 boards: arm: sabre-6quad/lm3s6965-ek: ac6: add scatter linker script for sabre-6quad/lm3s6965-ek
#7176 boards: arm: stm32: Add b-g474e-dpow1:ostest configuration.
#7240 boards: arm: stm32: nucleo-f446re: add romfs support
#6851 boards: arm: stm32: stm32f4discovery: Add Shift Game board example with gesture (APDS9960 sensor) support
#7093 boards: arm: stm32: stm32F4Discovery: Add support to W5500 and board config example
#7639 boards: arm: stm32: stm32f4discovery: icmp/arp message should talk to GS2200M through usrsock
#7587 boards: arm: stm32: stm32f103-minimum: Enable nsh help and basic commands
#7602 boards: arm: stm32: stm32f103-minimum: enable LTO to reducing the code size
#6858 boards: arm: stm32f7: steval-eth001v1: add FOC examples
#7588 boards: arm: stm32f103-minimum: Add ssd1306 example
#6931 boards: arm: stm32f7: nucleo-144: fix CONFIG_STM32F4DISC…
#7470 boards: arm: stm32f7: Files for pysimCoder on nucleo-h743zi2 #
#7432 boards: arm: stm32f7: New files for pysimCoder
#7487 boards: arm: stm32h7: Initialization of wdg
#6944 boards: arm: stm32h7: add support for mcuboot
#7427 boarda: arm: stm32h7: update mcuboot-loader configuration
#4908 boards: arm: stm32h7: nucleo-h743zi: add board files to support mcuboot
#7107 boards: arm: stm32h7: nucleo-h743zi: Remove CONFIG_ARMV7M_SYSTICK from stm32_boot_image.c
#7040 boards: arm: stm32l4: nucleo-l496zg: modify clock config #7040
#7479 boards: arm: stm32wb: flipperzero: adding LCD support
#6863 boards: arm: spresense: Add fmsynth defconfig
#7410 boards: arm: spresense: enable lte modem
#7708 boards: arm: spresense: Fix the build error in cxd56_crashdump.c
#7489 boards: arm: spresense: Minor update for video and lte driver
#7793 boards: arm: spresense: set RNDIS default throttle entries to 24 (2*MTU)
#7412 boards: arm: spresense: Update imageproc driver
#6927 boards: arm: tiva: lm3s6965-ek: Fix to load ELF applications for qemu-protected
#7183 boards: arm: tiva: tm4c129e-launchpad: Expand README.txt
#7253 boards: arm: tiva: tm4c129e-launchpad: Enable priority inheritance in ostest config
#7098 boards: arm: tlsr: Add specific section for discribe information
#7303 boards: arm64: qemu/qemu-a53: Ensure the purity of the defconfig
#7796 boards: arm64: a64: Add drivers for PIO and LEDs
#7806 boards: arm64: a64: pinephone: add support of reboot command
#6977 boards: sim: add usrsocktest config to detect the regression issue
#7219 boards: sim: adb: Enable netdb
#7332 boards: sim: Enable CONFIG_NSH_TELNET_LOGIN for adb
#6892 boards: sim: Enable ubsan in sim:kasan
#7210 boards: sim: Enable telnetd in adb config
#6843 boards: sim: Fix the /etc/passwd after TEA algo fixing
#6946 boards: sim: Add a new config minmea to detect build break
#7182 boards: sim: windows: add more net configs
#7386 boards: risc-v: Implement Interface method for ESP32C3: go_setpintype
#6955 boards: risc-v: esp32c3: Add support APA102/APDS-9960 for Shift Game
#7831 boards: risc-v: esp32c3: enable dumpstack/backtrace
#7250 boards: risc-v: esp32c3: fix wapi stack size on board examples
#7833 boards: risc-v: esp32c3: Move linker scripts and source files to folder common to all boards
#7453 boards: risc-v: esp32c3: remove not needed ldscript flags
#6846 boards: risc-v: esp32c3-devkit: Fix /etc/passwd too
#7619 boards: risc-v: mpfs: Add example target for SHM
#7860 boards: risc-v: rv-virt: Improve iperf speed for virtio-mmio-net
#7333 boards: risc-v: rv-virt: Update README.txt
#7725 boards: xtensa: Fix buttons IRQ on ESP boards
#7582 boards: xtensa: esp32: Add support to LilyGO_TBeam V1.1 LoRa/GPS board
#7474 boards: xtensa: esp32: Add MAX6675 temperature sensor support
#7519 boards: xtensa: esp32: Fix invalid IRAM option in linker script
#7647 boards: xtensa: esp32: Esp32 sparrow kit
#7693 boards: xtensa: esp32: Adds ESP32-WroverKit LUA config and fixes LEDs setup
#7293 boards: xtensa: esp32s2: Add missing ESP32S2 SPIRAM config
#7520 boards: xtensa: esp32s2: Move linker scripts to folder common to all boards
#6917 boards: xtensa: esp32s3: Fix alignment of FPU registers in exception context
#6916 boards: xtensa: esp32s3: Fix Data allocation offset within shared Internal SRAM1
#7500 boards: xtensa: esp32s3: Move linker scripts to folder common to all boards
#7550 boards: xtensa: esp32s3: Extend Instruction RAM region according to IDFboot v4.4.2
#7564 boards: xtensa: esp32-devkitc/wamr_wasi_debug: bump WAMR version
#7127 boards: xtensa: esp32-devkitc: Add support to W5500 WIZnet
#7553 boards: xtensa: esp32-devkitc: Update elf/defconfig
#7756 boards: xtensa: esp32-devkitc: wamr_wasi_debug: enable native-lib stuff
#6964 boards: xtensa: esp32-devkitc: wamr_wasi_debug: config maintenance
#7736 boards: xtensa: esp32-devkitc: wamr_wasi_debug: kconfig maintainance
#7559 boards: xtensa: esp32-lyrat: Remove CONFIG_MM_CIRCBUF=y from audio config

File System Improvements

#6932 fs: aio: fix typo ail
#6803 fs: directory: Using file api to implement operations on directories
#6969 fs: dup2: fix potential deadlock on usrsock
#7034 fs: Fix symbol name in comments
#7434 fs: Refine the implementation of files_allocate
#7712 fs: romfs meet localtime in syslog
#7437 fs: remove the unused nx_xxx functions
#7748 fs: littlefs: add a few Kconfig options
#7555 fs: littlefs: set LFS_NAME_MAX to CONFIG_NAME_MAX
#7760 fs: littlefs: Get and return the current error status before RMDIR execution type
#7568 fs: epoll: Reuse fd returned from epoll for internal signaling
#7642 fs: epoll: support extend the epoll dynamicly.
#7696 fs: epoll: [bug fix] EPOLL_CTL_ADD/MOD consider the teardown list too
#7699 fs: epoll: [bug fix] epoll node use-after-free in epoll extend list
#7539 fs: epoll: Correct epoll lock usage
#7189 fs: partition: Fixes for GPT partition parsing
#7376 fs: procfs: check task group before get group info
#7319 fs: procfs: Change FS_PROCFS_EXCLUDE_xxx default value to DEFAULT_SMALL
#7723 fs: procfs: meminfo: buflen identify the left of buffer
#7404 fs: romfs: expand file cache by CONFIG_FS_ROMFS_FCACHE_NSECTORS
#6864 fs: rpmsgfs: fix ioctl operation can not work bug
#6865 fs: rpmsgfs: fix double free
#6980 fs: rpmsgfs/Make.defs: rpmsgfs_server.c given more than once
#7462 fs: socket: Separation error code EBADF and ENOTSOCK
#7007 fs: smartfs: Fixes to RP2040 SMART flash and documentation
#7305 fs: tmpfs: Fixed NULL pointer use in tmpfs.
#7591 fs: unionfs: fix memory leak about directory operation
#7628 fs: userfs: destroy nxmutex properly
#7312 fs: vfs: fix case when file to rename does not exist
#7188 fs: vfs: fs_poll: not clear POLLIN event if POLLHUP or POLLERR set
#7356 fs: vfs: implement fdopendir
#6976 fs: vfs: run the default action of FIONBIO/FIOCLEX/FIONCLEX in success path
#7207 fs: vfs: poll: using callback mechanism to implement poll notification
#7317 fs: vfs: refine the implementation of rename
#7227 fs: vfs: don’t need monitor POLLERR or POLLHUP explicitly
#7742 fs: vfs: timerfd_create: initial reference count to zero
#7035 fs: vfs: fs_open.c: Improve documentation blocks of functions

Networking

New Features

#7562 net: Add Network Address Translation (NAT) for NuttX

Improvements

#7828 net: Adjust ioctl function of cellular
#7821 net: Add mtu set and interface name set in ioctl
#7143 net: Add IN6_IS_ADDR_LINKLOCAL macro
#7727 net: extract l3 header build code into new functions
#6923 net: remove pvconn reference from all devif callback
#7675 net: remove psock reference from connect
#7452 net: remove the unused nx_[send recv]msg
#7431 net: move IPv4/6BUF define to common header
#7769 net: nename arp_arpin to arp_input
#7631 net: arp: Make NET_ARP(Address Resolution Protocol) configurable
#7239 net: can: improve net/can/Kconfig
#7382 net: can: can_xxxsockopt.c: correct the code alignment
#7733 net: chksum: move all chksum api declarations to common header
#7814 net: devif_send: replace all block send to nonblock mode
#7703 net: devif/ip: build l2 header on the IP layer
#7746 net: devif: fix devif loopback
#7719 net: devif: add common interface to build L2 headers
#7701 net: devif: add common funtion to build L2 headers before sending
#7574 net: dns: Reduce the dns_lock granularity
#7625 net: icmp: ICMP_NO_STACK should not depends on NET_IPv4
#7269 net: ipforward: fix typo in ipv4_dev_forward
#7766 net: offload: add offload support for pkt/arp
#7616 net: l2/l3/l4: add support of iob offload
#7713 net: local: add net_lock to local_listen
#6808 net: local: make local udp send multi-thread safe
#7197 net: local: remove dead code
#6812 net: local: remove the sync preamble from datagram
#7679 net: local: support FIONWRITE for domain socket ioctl
#7275 net: local: unified formatting name function
#7732 net: loopback: reuse devif_loopback() logic for device lo(loopback)
#7768 net: d_buf: remove d_buf reference from l3/l4
#7807 net: devif: initialize d_len to 0 before polling connections
#7782 net: devif: reprepare iob buffer before polling connections
#7711 net: inet: fix compile failed if not define UDP
#7030 net: inet: invalid addrlen length should return EINVAL
#7778 net: ip: return success if the packet was forwarded.
#7433 net: ipfwd: correct application data offset
#7797 net: ipfwd: fix ipforward after IOB offload
#7826 net: ipfwd: limit number of ipforward struct to be less than number of IOB
#7750 net: ipfwd: Support ICMP/ICMPv6 error reply when forwarding
#7801 net: ipfwd: update IP buffer offset
#7741 net: ipv4: fix shadows declaration
#7683 net: icmpv6: Fix icmpv6_reply function
#6925 net: icmpv6: finetune the RA parsing procedure
#7747 net: nat: Add support for ICMP Error Message
#7102 net: netdev: Fix memcpy() size used by SIOCSIFHWADDR for radios
#7101 net: netdev: Fix sa_family returned by SIOCGIFHWADDR
#7314 net: netdev: Add Cellular link layer support
#7016 net: netdev: ioctl: correct the argument length of ioctl MII/PHY
#7038 net: netdev ioctl: netlock/unlock() should in pairs
#7020 net: netdev: simplify handling of netdev ifr ioctl()
#7004 net: procfs: add tcp profs support
#6997 net: procfs: add entry mapping table
#7132 net: procfs: disable tcp/udp proc node if no stack available
#7192 net: procfs: fix runtime error AddressSanitizer(global-buffer-overflow)
#7039 net: procfs: interface index should begin from 1
#7124 net: socket: implement SO_RCVBUF and SO_SNDBUF for getsockopt
#7438 net: socket: remove the unused nx_xxx functions
#7206 net: socket: return -ENOPROTOOPT for unsupported/unknown socket option
#6907 net: sockopt: move BINDTODEVICE to socket level
#7722 net: sockopt: add parameter check in psock_setsockopt
#7651 net: sockif: add si_getsockopt and si_setsockopt to simply getsockopt and setsockopt
#7377 net: tcp: Update conn laddr after select device
#7483 net: tcp: fix build break if enable NET_TCP_NO_STACK
#7350 net: tcp: remove debug counter of connect instance
#7313 net: tcp: syscall send() should not return ETIMEDOUT
#7535 net: tcp: Make TCP_MAXRTX and TCP_MAXSYNRTX configurable
#7668 net: tcp: recv returns 0 without set errno
#7571 net: tcp: find bound device when laddr is ANY
#6956 net: tcp: use independent work to free the conn instance
#7635 net: tcp: TCP_WAITALL should use state flag
#7728 net: tcp: fix build break if enable CONFIG_NET_IPv6 only
#6874 net: tcp: reset conn->nrtx when ack received
#7510 net: tcp: Avoid starting TCP sequence number from 0
#6947 net: tcp: fix devif callback list corruption on tcp_close()
#7286 net: tcp: Added handling of MSG_WAITALL flag in TCP recv.
#7652 net: usrsock: add REMOTE_CLOSED event handler to connect
#6975 net: usrsock: allow usrsock *DATA_ACK with no-preload data
#6893 net: usrsock: Change xid from uint64_t to uint32_t
#6971 net: usrsock: Change xid from uint64_t to uint32_t
#7072 net: usrsock: Code refactor
#7291 net: usrsock: Correct some status exceptions in non-blocking mode usrsock connect
#7665 net: usrsock: fix get/setsockopt issue about usrsock protocol
#6974 net: usrsock: forward FIONBIO to socket level
#6949 net: usrsock: refine usrsock’s architecture
#7627 net: usrsock: Refine Kconfig option
#6890 net: usrsock: Remove dev field from usrsockdev_s
#7671 net: usrsock: Remove specific process from common code as much as possible
#7378 net: usrsock: Some relatively reasonable error code modifications
#7009 net: udp: add IPVx_PKTINFO related support
#7026 net: udp: Clean up psock_udp_recvfrom related code
#7506 net: utils: add net_chksum_adjust defined by RFC3022
#6900 net: wireless: bluetooth: add btsnoop open-close ioctl cmd
#6899 net: wireless: bluetooth: add btsnoop and snoop
#7135 net: wireless: add support for netdev private ioctl
#6970 net: getsockname: small addrlen should be a valid value
#7576 net: rpmsg: add lock to poll & poll_notify
#6978 net: Align the prototype of sock_intf_s::si_ioctl with file_operations::ioctl

Security Issues Fixed In This Release

Compatibility Concerns

API Changes

Default Semaphore Protocol Changed

When NuttX is built with priority inheritance (CONFIG_PRIORITY_INHERITANCE), priority inheritance can be enabled or disabled per semaphore and care must be taken to make the correct choice based on how each semaphore is used.

When a semaphore is used as a mutual exclusion lock (“locking semaphore”), a thread that needs exclusive access to a resource waits on the semaphore, uses the resource, and then posts the semaphore. In this case, priority inheritance should be enabled for the semaphore (sem_setprotocol(sem, SEM_PRIO_INHERIT)) to mitigate priority inversion which could occur when multiple threads with different priorities compete for various resources.

In contrast, when a semaphore is used to signal an event from one thread to another (“signaling semaphore”), one thread waits on the semaphore and another thread posts it when the anticipated event occurs. In this case, since the thread that posts the semaphore is different than the one that waits on it, priority inheritance must not be enabled for the semaphore (sem_setprotocol(sem, SEM_PRIO_NONE)).

In earlier releases, priority inheritance was enabled by default for all semaphores whenever NuttX was built with CONFIG_PRIORITY_INHERITANCE. If a semaphore was used for signaling across threads, the non-standard API sem_setprotocol(sem, SEM_PRIO_NONE) had to be used to selectively disable priority inheritance for that semaphore.

Starting with this release, the default is changed: priority inheritance is disabled by default for all semaphores. To enable priority inheritance for a semaphore, first NuttX needs to be built with CONFIG_PRIORITY_INHERITANCE, then priority inheritance needs to be enabled for the semaphore in question with sem_setprotocol(sem, SEM_PRIO_INHERIT).

The benefit of this change is easier porting and maintenance of standards-compliant applications to NuttX by eliminating the need for 3rd party applications to call the non-standard API sem_setprotocol().

In addition, this is a safer default: Having priority inheritance inadvertently enabled for a signaling semaphore can cause incorrect behavior, while the impact of having it inadvertently disabled for a locking semaphore is limited to reduced performance.

This change was introduced in PR # 5070 https://github.com/apache/nuttx/pull/5070, git commits 4e1d967bcd0031bd07a6a46f022c75216cf98404, e5fbbd416d5f1e74e3f705677b2e99b0b8c544d3, 9a4b66fbb306d388e2ce431807a139848604a9f0, and 125de66b63b316a2c2a2912dd408f4bac2fc85c3.

All semaphore uses within the NuttX repositories have been updated; those used for locking have been replaced with mutexes (mutex_t instead of sem_t). See PR # 6965, git commits

ef3919e4eb75b1ab854a21c98124d7e90e5c5e14, 590e0d5666c47dcb91ccd35faa57681ca26d4b1d, and 5db565c78d7c009eaea8517f01a2d138ab5f0028.

Downstream users need to call sem_setprotocol(sem, SEM_PRIO_INHERIT) when setting up each semaphore used for mutual exclusion locking. In addition, they may optionally remove calls to sem_setprotocol(sem, SEM_PRIO_NONE) for signaling semaphores.