From 96c2707737391642ac1d3ade84fb03f4c1fa51e4 Mon Sep 17 00:00:00 2001 From: Alin Jerpelea Date: Tue, 9 Jan 2024 14:27:59 +0100 Subject: [PATCH] Documentation: add NuttX-12.4.0 release notes Add release notes for 12.4.0 release Signed-off-by: Alin Jerpelea --- Documentation/ReleaseNotes/NuttX-12.4.0 | 519 ++++++++++++++++++++++++ 1 file changed, 519 insertions(+) create mode 100644 Documentation/ReleaseNotes/NuttX-12.4.0 diff --git a/Documentation/ReleaseNotes/NuttX-12.4.0 b/Documentation/ReleaseNotes/NuttX-12.4.0 new file mode 100644 index 0000000000..6a2c70734e --- /dev/null +++ b/Documentation/ReleaseNotes/NuttX-12.4.0 @@ -0,0 +1,519 @@ +NuttX-12.4.0 +------------ + +What's New In This Release +Improvements to Core OS +sched +* [#10919](https://github.com/apache/nuttx/pull/10919) sched: assert: move the backtrace dump after the stack dump +* [#11195](https://github.com/apache/nuttx/pull/11195) sched: assert: restore assertion registers to array of last registers +* [#10858](https://github.com/apache/nuttx/pull/10858) sched: assert.c: Print process name in assert dump +* [#11131](https://github.com/apache/nuttx/pull/11131) sched: Check for zero sleep time and yield CPU +* [#11226](https://github.com/apache/nuttx/pull/11226) sched: delete check when pick nexttcb in readytorun list +* [#11038](https://github.com/apache/nuttx/pull/11038) sched: env_dup: fix issue about USE_AFTER_FREE +* [#11102](https://github.com/apache/nuttx/pull/11102) sched: explicitly select the cpuload clock source configuration +* [#10816](https://github.com/apache/nuttx/pull/10816) sched: Fix dependencies of CONFIG_SCHED_CPULOAD_ settings +* [#11036](https://github.com/apache/nuttx/pull/11036) sched: Follow o_cloexe semantics when calling the exec function +* [#10867](https://github.com/apache/nuttx/pull/10867) sched: format: modify spin_lock_irqsave format +* [#11018](https://github.com/apache/nuttx/pull/11018) sched: group/killchildren: replace syscall(2) to kernel api +* [#10605](https://github.com/apache/nuttx/pull/10605) sched: Implement ticket spinlock +* [#10827](https://github.com/apache/nuttx/pull/10827) sched: Improve adjtime() functionality +* [#11231](https://github.com/apache/nuttx/pull/11231) sched: lock refine: remove sched_[un]lock in xxx_waitsample +* [#11302](https://github.com/apache/nuttx/pull/11302) sched: misc/rwlock:Implementing read/write locks. +* [#11347](https://github.com/apache/nuttx/pull/11347) sched: Print more information in assert +* [#11017](https://github.com/apache/nuttx/pull/11017) sched: pthread/barrierwait: replace syscall(2) to kernel api +* [#10929](https://github.com/apache/nuttx/pull/10929) sched: Remove the unused tcb argument from group_setupidlefiles +* [#10776](https://github.com/apache/nuttx/pull/10776) sched: rw spinlock +* [#11124](https://github.com/apache/nuttx/pull/11124) sched: rw spinlocks: cosmetic changes +* [#11191](https://github.com/apache/nuttx/pull/11191) sched: sem_holder.c: When accessing SEM_WAITLIST, use holder's addrenv +* [#11257](https://github.com/apache/nuttx/pull/11257) sched: semaphore: Move POSIX regulated parts of semaphores into libc +* [#11252](https://github.com/apache/nuttx/pull/11252) sched: sigaction: Expand si_user for non-kernel signals +* [#10970](https://github.com/apache/nuttx/pull/10970) sched: smp call exit immediately when cpuset change to 0. +* [#10861](https://github.com/apache/nuttx/pull/10861) sched: spinlock: Add spin_lock_init and spin_is_locked macro +* [#11348](https://github.com/apache/nuttx/pull/11348) sched: Stack recored:Add maximum stack statistics when the task is running +* [#9163](https://github.com/apache/nuttx/pull/9163) sched: Stop the sched timer when possible to save the power in tickless mode +* [#10934](https://github.com/apache/nuttx/pull/10934) sched: support smp function call +* [#11032](https://github.com/apache/nuttx/pull/11032) sched: task: [posix]spawn: Simplify how spawn attributes are handled +* [#11241](https://github.com/apache/nuttx/pull/11241) sched: task: pthread_cancelpt: Fix nxtask_delete from another task group +* [#11165](https://github.com/apache/nuttx/pull/11165) sched: task: pthread_cancelpt: Move cancel point handling to libc, data to TLS +* [#11097](https://github.com/apache/nuttx/pull/11097) sched: task: Remove spawn_proxyattrs as obsolete implementation +* [#11177](https://github.com/apache/nuttx/pull/11177) sched: taskfiles: skip unnecessary file open/close operations to improve performance +* [#11250](https://github.com/apache/nuttx/pull/11250) sched: taskspawn: fix spawn fail if enable FDCHECK +* [#10834](https://github.com/apache/nuttx/pull/10834) sched: timer: handle perf count overflow + +mm +* [#11068](https://github.com/apache/nuttx/pull/11068) mm: both use spin_lock_irqxx() when operated delaylist +* [#11183](https://github.com/apache/nuttx/pull/11183) mm: free delay list when exceeding specified count +* [#11258](https://github.com/apache/nuttx/pull/11258) mm: kmap: Finalize kmap implementation for RISC-V +* [#10837](https://github.com/apache/nuttx/pull/10837) mm: kmap: Fix bug in kmm_unmap +* [#10876](https://github.com/apache/nuttx/pull/10876) mm: kmap: Fix several issues with the kmm_map interface +* [#11114](https://github.com/apache/nuttx/pull/11114) mm: kmap: Fix bad dependency to ARCH_VMA_MAPPING +* [#11092](https://github.com/apache/nuttx/pull/11092) mm: improve SMP performance +* [#11152](https://github.com/apache/nuttx/pull/11152) mm: record the maximum system memory usage +* [#11168](https://github.com/apache/nuttx/pull/11168) mm: Remove mm_spinlock +* [#10984](https://github.com/apache/nuttx/pull/10984) mm: Replace enter_critical_section with spin_irqsave + +libs +* [#11408](https://github.com/apache/nuttx/pull/11408) libc: add fgetwc, getwc, ungetwc wchar api implementation +* [#10602](https://github.com/apache/nuttx/pull/10602) libc: add support for custom streams with fopencookie() +* [#11011](https://github.com/apache/nuttx/pull/11011) libc: add support for memory buffer stream with fmemopen() +* [#11274](https://github.com/apache/nuttx/pull/11274) libc: add support for open_memstream +* [#11288](https://github.com/apache/nuttx/pull/11288) libc: arm: add support of PACBTI +* [#10969](https://github.com/apache/nuttx/pull/10969) libc: Change errno to set_errno and get_errno +* [#11294](https://github.com/apache/nuttx/pull/11294) libc: Fix -nan issue with f32 +* [#11198](https://github.com/apache/nuttx/pull/11198) libc: Fix improper handling of 64 bit types for libvsprintf +* [#11322](https://github.com/apache/nuttx/pull/11322) libc: Handle PCREL_HI20/LO12_I/S relocations correctly +* [#10994](https://github.com/apache/nuttx/pull/10994) libc: Improve stdio unlock version function +* [#11364](https://github.com/apache/nuttx/pull/11364) libc: lib_slcd: fix encode/decode of binary nibble to/from ascii hex +* [#11035](https://github.com/apache/nuttx/pull/11035) libc: localtime: fix the timezone error caused by minor error +* [#11281](https://github.com/apache/nuttx/pull/11281) libc: machine/arm: align related implementations of armv7 architecture +* [#10927](https://github.com/apache/nuttx/pull/10927) libc: machine: Remove FAR from sparc +* [#11133](https://github.com/apache/nuttx/pull/11133) libc: realpath: allocate link buffer of pseudofs to save stack +* [#10913](https://github.com/apache/nuttx/pull/10913) libc: Refine the implementation of fopen/fdopen +* [#10993](https://github.com/apache/nuttx/pull/10993) libc: Remove the unused lib_libdtoa.c +* [#11137](https://github.com/apache/nuttx/pull/11137) libc: Solve some problems encountered during cmake compilation +* [#10992](https://github.com/apache/nuttx/pull/10992) libc: stdio: Change FILE buffer field from "unsigned char *" to "char *" +* [#11063](https://github.com/apache/nuttx/pull/11063) libc: stdlib/lib_exit.c: fix multiple definition of __dso_handle and sethost.sh: add MSYS environmen for msys2 +* [#11447](https://github.com/apache/nuttx/pull/11447) libc: stream: add stream interface +* [#11350](https://github.com/apache/nuttx/pull/11350) libc: Support gdbstub kernal debugging +* [#11346](https://github.com/apache/nuttx/pull/11346) libc: Supports storing coredump into block devices +* [#10862](https://github.com/apache/nuttx/pull/10862) libc: memfd: shm_unlink or unlink anonymous file +* [#10891](https://github.com/apache/nuttx/pull/10891) libc: memfd: turn a runtime error into a linker error +* [#10972](https://github.com/apache/nuttx/pull/10972) libds: add missing observer_b16.c to cmake build +* [#10915](https://github.com/apache/nuttx/pull/10915) libdsp: lib_observer.c: use float numbers for some calculations +* [#10979](https://github.com/apache/nuttx/pull/10979) libdsp: update LP_FILTER comment +* [#11256](https://github.com/apache/nuttx/pull/11256) libm: Fix an issue that public header files are not exported +* [#11162](https://github.com/apache/nuttx/pull/11162) libm: newlib: Change the download site to https +* [#11386](https://github.com/apache/nuttx/pull/11386) libs: log2ceil: Move implementation of log2ceil to a common place +* [#11043](https://github.com/apache/nuttx/pull/11043) libs: modlib: optimize code and add arch api for allocating data section +* [#11394](https://github.com/apache/nuttx/pull/11394) libxx: cmake: remove useless code +* [#11050](https://github.com/apache/nuttx/pull/11050) libxx: Silence warnings when building libcxx. +* [#11301](https://github.com/apache/nuttx/pull/11301) libxx: upgrade llvm version to 17.0.6 +* [#10860](https://github.com/apache/nuttx/pull/10860) libxx: Use gnu++20 option only if using libcxx +misc +* [#11242](https://github.com/apache/nuttx/pull/11242) Revert "libc/lib_bzero:Add bzero prototype." +* [#10881](https://github.com/apache/nuttx/pull/10881) arm, arm64, xtensa, libxx: Change sed -r to sed -E to support macOS +* [#11027](https://github.com/apache/nuttx/pull/11027) assert: rename __ASSERT to __ASSERT__ to avoid conflict +* [#11025](https://github.com/apache/nuttx/pull/11025) audio: add amr format support +* [#11055](https://github.com/apache/nuttx/pull/11055) binfmt/elf: Select ARCH_USE_TEXT_HEAP if ARCH_HAVE_TEXT_HEAP +* [#11238](https://github.com/apache/nuttx/pull/11238) clock.h: use CONFIG_DEBUG_SCHED to test init ticks +* [#10924](https://github.com/apache/nuttx/pull/10924) crypto/rsa_verify: export rsa verify via /dev/crypto +* [#10978](https://github.com/apache/nuttx/pull/10978) debug/assert: decouple configuration of show file name feature +* [#10809](https://github.com/apache/nuttx/pull/10809) dma: support source/destination address auto step +* [#10870](https://github.com/apache/nuttx/pull/10870) fixedmath: add abs and sign operations +* [#11111](https://github.com/apache/nuttx/pull/11111) ioctl: add definitions related to ethtool +* [#11121](https://github.com/apache/nuttx/pull/11121) ioctl: add SIOCGIWNAME support +* [#11026](https://github.com/apache/nuttx/pull/11026) kernel: replace all sem_* to nxsem_*: in kernel space +* [#10849](https://github.com/apache/nuttx/pull/10849) langinfo: The character U+ff0c "，" could be confused with the ASCII character U… +* [#11243](https://github.com/apache/nuttx/pull/11243) list: search prev item in reverse order +* [#11221](https://github.com/apache/nuttx/pull/11221) poll: pollsetup should notify only one fd passed by caller +* [#10892](https://github.com/apache/nuttx/pull/10892) refine: move BIT Macro to nuttx/bits.h +* [#11218](https://github.com/apache/nuttx/pull/11218) spinlock: Move the inclusion of stdatomic.h to source file +* [#10869](https://github.com/apache/nuttx/pull/10869) sys/types: supporting 32-bit IDs for gid_t/uid_t +* [#11207](https://github.com/apache/nuttx/pull/11207) tcbinfo:remove total_num form tcbinfo. +* [#11298](https://github.com/apache/nuttx/pull/11298) video: Update v4l2m2m interface & create videoio.h +* [#11362](https://github.com/apache/nuttx/pull/11362) virtio.h: add virtio_has_feature api for virtio driver +Build System +Improvements +* [#11007](https://github.com/apache/nuttx/pull/11007) Revert "make/archive: Use the full path name when matching or storing… +* [#11047](https://github.com/apache/nuttx/pull/11047) applications: Move the test tools in the system to the testing +* [#11395](https://github.com/apache/nuttx/pull/11395) cmake: build file support with libcxx 17.0.6 +* [#10982](https://github.com/apache/nuttx/pull/10982) cmake: correct cmake rule file name +* [#11375](https://github.com/apache/nuttx/pull/11375) cmake: fix NUTTX_COMMON_DIR +* [#11031](https://github.com/apache/nuttx/pull/11031) cmake: init RISC-V cmake qemu-rv build +* [#10843](https://github.com/apache/nuttx/pull/10843) cmake: raise error if previous make build was not cleaned +* [#10879](https://github.com/apache/nuttx/pull/10879) fix: TreeNode has same attribute with NodeMixin +* [#10968](https://github.com/apache/nuttx/pull/10968) nuttx: generate nuttx.map file when enable debug link map. +* [#11303](https://github.com/apache/nuttx/pull/11303) sh: Enhanced compilation system +* [#11432](https://github.com/apache/nuttx/pull/11432) tools: config.mk: whether verbosity is enabled or not, should use bash +* [#11098](https://github.com/apache/nuttx/pull/11098) tools: configure.c and tools/sethost.sh Add CONFIG_EXPERIMENTAL for configure windows native +Architectural Support +New Architecture Support +* [#11319](https://github.com/apache/nuttx/pull/11319) arm:imxrt: Add support for imxrt1170 Soc and imxrt1170-evk board +* [#11371](https://github.com/apache/nuttx/pull/11371) riscv: Add support for Bouffalo Lab BL808 SoC (T-Head C906) + +Architecture Improvements +* [#10836](https://github.com/apache/nuttx/pull/10836) arch: add a flag indicating that the chip doesn't support DMA transfer from/to FLASH +* [#10759](https://github.com/apache/nuttx/pull/10759) arch: add use_data to g_tcbinfo +* [#11190](https://github.com/apache/nuttx/pull/11190) arch: dumponexit: unify dump on exit to common code +* [#10828](https://github.com/apache/nuttx/pull/10828) arch: simplify ARCH_PERF_EVENTS related code +* [#11160](https://github.com/apache/nuttx/pull/11160) arch: textheap: add _heapmember declare for text and data heap +arm + * [#11282](https://github.com/apache/nuttx/pull/11282) clang: replace deprecated parameter +* [#11170](https://github.com/apache/nuttx/pull/11170) Let's old arm's arm_doirq return register context like armv7-a +* [#11413](https://github.com/apache/nuttx/pull/11413) debug:fix gdbstub clear fpb & dwt when already use jtag/swo bug +* [#11166](https://github.com/apache/nuttx/pull/11166) armv8-m: Fix typo error for NVIC_SYSHCON_HARDFAULTPENDED + +* [#11118](https://github.com/apache/nuttx/pull/11118) cxd56xx: Support to get gnss firmware version + +* [#11398](https://github.com/apache/nuttx/pull/11398) imxrt: Extend FlexIO support to 117x +* [#11436](https://github.com/apache/nuttx/pull/11436) imxrt: flexio move ifdef guard lower +* [#11012](https://github.com/apache/nuttx/pull/11012) imxrt: NXP I2C non-DMA end only on stop with end of packet +* [#11000](https://github.com/apache/nuttx/pull/11000) imxrt: nxp lpi2c calculated timeout can not be 0 +* [#11033](https://github.com/apache/nuttx/pull/11033) imxrt: NXP lpi2c DMA transaction only need the status conditioned +* [#11164](https://github.com/apache/nuttx/pull/11164) imxrt: NXP Serial Do not wait on TXDMA semaphore +* [#11070](https://github.com/apache/nuttx/pull/11070) imxrt: NXP Serial overcome race where DMA has not fetched TCD again +* [#11020](https://github.com/apache/nuttx/pull/11020) imxrt: serial Ensure the cache is updated if the DMA has updated again + +* [#11199](https://github.com/apache/nuttx/pull/11199) imx6: Replace cpu_start_t with start_t + +* [#10877](https://github.com/apache/nuttx/pull/10877) mx8mp: Add support for SPI + +* [#11203](https://github.com/apache/nuttx/pull/11203) nRF91: initial support for GNSS +* [#11308](https://github.com/apache/nuttx/pull/11308) nrf{52|53|91}: add missing support for 1 Mbps UART baud +* [#10826](https://github.com/apache/nuttx/pull/10826) nrf{52|53|91}: add support for up_perf +* [#10830](https://github.com/apache/nuttx/pull/10830) nrf{52|53|91}: fixes for timer + +* [#11172](https://github.com/apache/nuttx/pull/11172) rp2040: pwm: Fix errors at CONFIG_PWM_NCHANNELS=1 + +* [#10817](https://github.com/apache/nuttx/pull/10817) sama5: Sort SAMA5D2 adc/tsd dma +* [#10806](https://github.com/apache/nuttx/pull/10806) sama5: TSD trigger and pressure scaling issues +* [#11307](https://github.com/apache/nuttx/pull/11307) samd212: invert tx and rx in spi_dma_setup +* [#11212](https://github.com/apache/nuttx/pull/11212) samd212: sam_dmac: Fix compilation and fix SAM_DMAC_CHINTENCLR settings +* [#10855](https://github.com/apache/nuttx/pull/10855) samv7: channel gain switching in aefc +* [#11312](https://github.com/apache/nuttx/pull/11312) samv7: sam_emac: Implement errata workaround for KSZ8061 PHY + +* [#10847](https://github.com/apache/nuttx/pull/10847) {stm32|stm32f7|at32|samv7|imxrt}: fix for adc_setup +* [#11211](https://github.com/apache/nuttx/pull/11211) stm32: Add support for Ethernet packet timestamping and PTP timer +* [#11175](https://github.com/apache/nuttx/pull/11175) stm32: foc: add support for board-specific ioctl +* [#10833](https://github.com/apache/nuttx/pull/10833) stm32: Initialize LED driver during late initialization for nucleo-f446re +* [#11181](https://github.com/apache/nuttx/pull/11181) stm32: stm32/stm32_adc.c: protect irq_attach with refcounter +* [#11194](https://github.com/apache/nuttx/pull/11194) stm32: stm32_foc.c: rename some macros +* [#11194](https://github.com/apache/nuttx/pull/11194) stm32: stm32_eth: Fix excessively long critical section in ifdown handlerm +* [#10865](https://github.com/apache/nuttx/pull/10865) stm32: UART needs to be disabled before changing setup + +* [#10824](https://github.com/apache/nuttx/pull/10824) stm32l4: ADC: Adds low level operations to start and stop DMA. +* [#11154](https://github.com/apache/nuttx/pull/11154) stm32h7: serial: Do not wait on TXDMA semaphore +* [#11323](https://github.com/apache/nuttx/pull/11323) stm32h7: serial refactor out tx dma semaphore +* [#11332](https://github.com/apache/nuttx/pull/11332) stm32h7: serial Remove .txdmasem = SEM_INITIALIZER(1) bad cherry-pick +* [#10841](https://github.com/apache/nuttx/pull/10841) stm32h7: stm32_oneshot.c: Fix format warnings. +* [#11334](https://github.com/apache/nuttx/pull/11334) stm32h7: stm32h7_adc: Dynamically set clock prescaler and BOOST +* [#11367](https://github.com/apache/nuttx/pull/11367) stm32u5: fix EXTICR2,3,4 register offsets + +* [#10846](https://github.com/apache/nuttx/pull/10846) s32k1xx: Fix LPUART inversion warnings & config. +* [#10844](https://github.com/apache/nuttx/pull/10844) s32k1xx: Fix warnings in PWM code. +* [#11099](https://github.com/apache/nuttx/pull/11099) s32kxxx: flexcan doesn't set srr bit for extended frames +* [#11325](https://github.com/apache/nuttx/pull/11325) s32k3xx: NXP S32K3xx Fixes stuttering output +* [#11106](https://github.com/apache/nuttx/pull/11106) s32k3xx: serial ensure the cache is updated if the DMA has updated again +arm64 +* [#10888](https://github.com/apache/nuttx/pull/10888) Add support for FIQ interrupts +* [#11352](https://github.com/apache/nuttx/pull/11352) coredump: support arm64 coredump +* [#11200](https://github.com/apache/nuttx/pull/11200) Disable ARCH_HAVE_FORK for arm64 as a precaution +* [#11429](https://github.com/apache/nuttx/pull/11429) Fix GICv2 detection +* [#10966](https://github.com/apache/nuttx/pull/10966) Remove unnecessary code in arm64_cpu_idle.S +* [#11037](https://github.com/apache/nuttx/pull/11037) support relocate for aarch64 +* [#10917](https://github.com/apache/nuttx/pull/10917) support up_coherent_dcache function +* [#10918](https://github.com/apache/nuttx/pull/10918) target cpuid calculation error in arm64_gic_raise_sgi function +* [#11182](https://github.com/apache/nuttx/pull/11182) the bug of sscanf exception output in arm64 platform +* [#11245](https://github.com/apache/nuttx/pull/11245) vector: no need to save x0 to sp +* [#10904](https://github.com/apache/nuttx/pull/10904) XN should only be set when the attribute MT_EXECUTE_NEVER is set +risc-v +* [#10856](https://github.com/apache/nuttx/pull/10856) addrenv: utils: Determine page table flags by type of vaddr +* [#11113](https://github.com/apache/nuttx/pull/11113) addrenv: Fix static page table mapping (paddr instead of vaddr) +* [#10838](https://github.com/apache/nuttx/pull/10838) addrenv: Fix the user VMA end address +* [#10829](https://github.com/apache/nuttx/pull/10829) addrenv: Fix two SHM related issues +* [#11389](https://github.com/apache/nuttx/pull/11389) arch_elf: Check for _HI20 relocation validity +* [#11437](https://github.com/apache/nuttx/pull/11437) espressif: mcuboot: Fix dependency of the Espressif's port MCUboot. +* [#11034](https://github.com/apache/nuttx/pull/11034) espressif: Update esp-hal-3rdparty version +* [#11024](https://github.com/apache/nuttx/pull/11024) litex/litex_emac: Add support for KSZ8061 ethernet PHY. +* [#11029](https://github.com/apache/nuttx/pull/11029) litex/litex-emac: Add support for phy interrupts. +* [#11028](https://github.com/apache/nuttx/pull/11028) litex/litex_gpio: Fix ISR dispatch when using higher GPIO indexes. +* [#11365](https://github.com/apache/nuttx/pull/11365) mmu: Extend MMU Flags to 64-bit for T-Head C906 and Svpbmt +* [#11283](https://github.com/apache/nuttx/pull/11283) mpfs: corespi: Round up divider to prevent overlock of SPI +* [#10822](https://github.com/apache/nuttx/pull/10822) mpfs: corespi: Several speed optimizations to the FPGA driver +* [#10921](https://github.com/apache/nuttx/pull/10921) mpfs: ethernet: Fix RX/TX buffer and descriptor handling +* [#11405](https://github.com/apache/nuttx/pull/11405) mpfs: ethernet: Remove DMA_ENABLE hack +* [#10922](https://github.com/apache/nuttx/pull/10922) mpfs: entrypoints: Fix potential R_RISCV_JAL linker error +* [#11247](https://github.com/apache/nuttx/pull/11247) mpfs: ihc: cleanup DEBUGASSERTs and irq enabling +* [#11355](https://github.com/apache/nuttx/pull/11355) mpfs: mpfs_head.S: Change j/jal to tail call +* [#10923](https://github.com/apache/nuttx/pull/10923) mpfs: mpfs_head.S: Simplify clearing PMP +* [#11233](https://github.com/apache/nuttx/pull/11233) mpfs: opensbi: update opensbi to version 1.3.1 +* [#11404](https://github.com/apache/nuttx/pull/11404) mpfs: usb: Use kernel memory instead of user memory for DMA +* [#11403](https://github.com/apache/nuttx/pull/11403) mpfs: pmpcfg: Move PMPCFG registers to common location +* [#10875](https://github.com/apache/nuttx/pull/10875) pgalloc.h: Return kernel vaddr for kernel RAM paddr +* [#11374](https://github.com/apache/nuttx/pull/11374) riscv_pmp.c: Revert LOG2_CEIL back to run-time log2ceil function +* [#11001](https://github.com/apache/nuttx/pull/11001) Simplify PMP configuration and code +* [#11441](https://github.com/apache/nuttx/pull/11441) Update mode.h to add CSR_TVEC +sim +* [#10930](https://github.com/apache/nuttx/pull/10930) crypto: Use mbedtls default configuration without special check +* [#11381](https://github.com/apache/nuttx/pull/11381) sim_lcd: add open & close +* [#11122](https://github.com/apache/nuttx/pull/11122) sim_netdriver: some sim defconfig have problems when using the network +* [#11246](https://github.com/apache/nuttx/pull/11246) sim support 16bbp +* [#11237](https://github.com/apache/nuttx/pull/11237) simwifi: Connect the wifi whose ssid contains the special charaters. +* [#11235](https://github.com/apache/nuttx/pull/11235) simwifi: Escapes the special characters of ssid in the scan results. +* [#11069](https://github.com/apache/nuttx/pull/11069) simwifi: Fix the error of the need length for scan bssinfo. +* [#11112](https://github.com/apache/nuttx/pull/11112) simwifi: For scan results, parse and translate the Chinese ssid encoded by the wpa_cli. +* [#11066](https://github.com/apache/nuttx/pull/11066) simwifi: host wlan0 obtains ip and set dns for wlan0 in the defwan wlan0 +* [#11108](https://github.com/apache/nuttx/pull/11108) simwifi: Transfer the special characters in ssid. +* [#11104](https://github.com/apache/nuttx/pull/11104) simwifi: Support that get the connected Chinese essid. +* [#11051](https://github.com/apache/nuttx/pull/11051) simwifi: Support that simwifi connects to the hidden ssid. +* [#11171](https://github.com/apache/nuttx/pull/11171) Replace [enter|leave]_critical_section with up_irq_[save|restore] +* [#11219](https://github.com/apache/nuttx/pull/11219) Remove the wrong comment from up_allocate_heap +* [#11205](https://github.com/apache/nuttx/pull/11205) usb_rawgadget: remove halt operation +* [#10910](https://github.com/apache/nuttx/pull/10910) Update Fix more generic for platforms that do not have execinfo.h +* [#11030](https://github.com/apache/nuttx/pull/11030) wifidriver: Fix the scan error. +* [#10886](https://github.com/apache/nuttx/pull/10886) wifidriver: Support the sim wifi. +x86_64 +* [#10899](https://github.com/apache/nuttx/pull/10899) Fix idle stack assignment +xtensa +* [#11141](https://github.com/apache/nuttx/pull/11141) esp32: ble: Enable the BLE interrupt during an SPI flash operation +* [#10859](https://github.com/apache/nuttx/pull/10859) esp32: ble: Fix task_create_wrapper CPU core ID passed as argument +* [#10851](https://github.com/apache/nuttx/pull/10851) esp32: irq: Fix erroneous interrupt allocation for each CPU core +* [#11139](https://github.com/apache/nuttx/pull/11139) esp32s2: Add rtc heap support +* [#11300](https://github.com/apache/nuttx/pull/11300) esp32s2: Add RTC support +* [#11138](https://github.com/apache/nuttx/pull/11138) esp32s2: Add SPI slave support +* [#10850](https://github.com/apache/nuttx/pull/10850) esp32s2: add UART RS485 support +* [#10823](https://github.com/apache/nuttx/pull/10823) esp32s2: Add support to TWAI/CANBus controller +* [#11431](https://github.com/apache/nuttx/pull/11431) esp32s2: Add xtwdt and rwdt support +* [#10873](https://github.com/apache/nuttx/pull/10873) esp32s2: ESP32-S3 I2C improvements +* [#11259](https://github.com/apache/nuttx/pull/11259) esp32s3: Add rtc heap support +* [#11180](https://github.com/apache/nuttx/pull/11180) esp32s3: Add RWDT support +* [#11287](https://github.com/apache/nuttx/pull/11287) esp32s3: Add SPIRAM high memory support +* [#11179](https://github.com/apache/nuttx/pull/11179) esp32s3: Add XTWDT support +* [#10854](https://github.com/apache/nuttx/pull/10854) esp32s3: ble: enable the BLE interrupt during a SPI flash operation +* [#11331](https://github.com/apache/nuttx/pull/11331) esp32s3: enable LIBC_ARCH_ATOMIC +* [#11299](https://github.com/apache/nuttx/pull/11299) esp32s3: Fix esp32s3 mcuboot ota crash +* [#11136](https://github.com/apache/nuttx/pull/11136) esp32s3: Fix issue regarding IRAM-enabled ISRs by fixing the linker +* [#11285](https://github.com/apache/nuttx/pull/11285) esp32s3: Fix some ESP32S3 module reboot and QVL issues +* [#10882](https://github.com/apache/nuttx/pull/10882) esp32s3: Fix the os halt issue when esp32s3 wlan has high-speed or long time d… +* [#11427](https://github.com/apache/nuttx/pull/11427) esp32s3: Fixed bbpll not calibrated from bootloader issue +* [#11328](https://github.com/apache/nuttx/pull/11328) esp32s3: GPIO clear pending interrupt status before enable IRQ +* [#11329](https://github.com/apache/nuttx/pull/11329) esp32s3: QSPI disable DMA when sending command to slave +* [#11286](https://github.com/apache/nuttx/pull/11286) esp32s3: Invalidate cache if the flash address used has a cache mapping. +* [#11144](https://github.com/apache/nuttx/pull/11144) esp32s3: Support malloc from external RAM and internal RAM +* [#11157](https://github.com/apache/nuttx/pull/11157) esp32s3: Support multiple PHY init data bin +* [#11434](https://github.com/apache/nuttx/pull/11434) esp32s3: Support reading encrypted partitions +* [#11052](https://github.com/apache/nuttx/pull/11052) esp32s3: Support to read data from flash to PSRAM +* [#11340](https://github.com/apache/nuttx/pull/11340) esp32s3: Tasks use SPIRAM as stack can do SPI flash read/write/erase/map/unmap +* [#11428](https://github.com/apache/nuttx/pull/11428) espressif/rmt: Implement a common RMT (Remote Control) driver for xtensa-based devices. +Driver Support +New Driver Support +* [#10770](https://github.com/apache/nuttx/pull/10770) drivers: add regmap subsystems support. +* [#10902](https://github.com/apache/nuttx/pull/10902) motor: Add stepper interface +* [#11253](https://github.com/apache/nuttx/pull/11253) mtd: Adds support to W25Q20CL memory. +* [#11149](https://github.com/apache/nuttx/pull/11149) mtd: mx25rxx: add support for MX25L25673G chip +* [#11422](https://github.com/apache/nuttx/pull/11422) net: ksz9477: Add simple port-based static VLAN configuration +* [#11339](https://github.com/apache/nuttx/pull/11339) net: lan9250: Add LAN9250 driver(SPI and QSPI mode) +* [#11280](https://github.com/apache/nuttx/pull/11280) sensors: Add support for MS5607 +* [#10864](https://github.com/apache/nuttx/pull/10864) sensors: max31865:RTD-to-Digital Converter +* [#10914](https://github.com/apache/nuttx/pull/10914) stepper: add DRV8825 +* [#11228](https://github.com/apache/nuttx/pull/11228) tee: add optee client driver module +Drivers Improvements +* [#11071](https://github.com/apache/nuttx/pull/11071) Kconfigs: rename {Rpmsg|rpmsg} to RPMGS +* [#11061](https://github.com/apache/nuttx/pull/11061) can: Add new ioctls +* [#10845](https://github.com/apache/nuttx/pull/10845) foc: foc_dummy.c: update dummy device state only if dev opened +* [#11176](https://github.com/apache/nuttx/pull/11176) foc: return scaling factor for phase currents and BEMF via ioctl +* [#10808](https://github.com/apache/nuttx/pull/10808) ioexpander: Minor fix for ioexpander driver +* [#11147](https://github.com/apache/nuttx/pull/11147) lcd: add stride support for LCD driver +* [#11185](https://github.com/apache/nuttx/pull/11185) lcd: change lcd stride from pixel to bytes +* [#10926](https://github.com/apache/nuttx/pull/10926) math: mpi: add mpi driver in math +* [#11240](https://github.com/apache/nuttx/pull/11240) misc: Rpmsgblk function optimization +* [#11220](https://github.com/apache/nuttx/pull/11220) mmcsd: mmcsd_sdinitialize should save csd register into priv->csd +* [#10909](https://github.com/apache/nuttx/pull/10909) mtd: filemtd:Fix teardown return error number EINVAL +* [#11041](https://github.com/apache/nuttx/pull/11041) mtd: get mtd_geometry_s.model for mtd partition and optimize code +* [#11187](https://github.com/apache/nuttx/pull/11187) mtd: s25fl1: fix compile warnings caused by incorrect variable print format +* [#11370](https://github.com/apache/nuttx/pull/11370) mtd: w25q: add nxsig_usleep to busy waiting in w25qxxxjv_erase_sector() +* [#11391](https://github.com/apache/nuttx/pull/11391) net: qemu/wifi: Add the virtual wifi function on the emulator. +* [#11216](https://github.com/apache/nuttx/pull/11216) net: skeleton.c doesn't compile without this patch if ioctls are enabled +* [#10907](https://github.com/apache/nuttx/pull/10907) note: Change 0/1 to false/true +* [#11153](https://github.com/apache/nuttx/pull/11153) note: delete sched_note_flatten +* [#10840](https://github.com/apache/nuttx/pull/10840) note: optimize note performance +* [#10920](https://github.com/apache/nuttx/pull/10920) note: remove remaining event code +* [#11074](https://github.com/apache/nuttx/pull/11074) power: pm: use pm_staytimeout() in greedy_governor_activity() +* [#11132](https://github.com/apache/nuttx/pull/11132) rptun: check the status before stop remote proc +* [#11222](https://github.com/apache/nuttx/pull/11222) rtc: RTC driver improvement +* [#10831](https://github.com/apache/nuttx/pull/10831) rtt: make RTT console optional +* [#11296](https://github.com/apache/nuttx/pull/11296) segger: rtt: correct macro name to avoid unable to change default mode +* [#11419](https://github.com/apache/nuttx/pull/11419) sensors: mx56xx: Add support for second order compensation +* [#11426](https://github.com/apache/nuttx/pull/11426) sensors: mx56xx: Fix threshold and calculation +* [#11178](https://github.com/apache/nuttx/pull/11178) serial: uart_tcsendbreak: Remove cancel point, as tcsendbreak is not one +* [#11402](https://github.com/apache/nuttx/pull/11402) syslog: ramlog: improve ramlog performance +* [#11392](https://github.com/apache/nuttx/pull/11392) syslog: ramlog: multi readers +* [#10890](https://github.com/apache/nuttx/pull/10890) syslog: ramlog: remove sched_[un]lock and rl_nwaiters +* [#11186](https://github.com/apache/nuttx/pull/11186) timers: Rewrite adjtime() implementation to work for RTC and tickless kernel +* [#11356](https://github.com/apache/nuttx/pull/11356) usbdev: Add callback for CONFIG_USBDEV_SOFINTERRUPT +* [#11042](https://github.com/apache/nuttx/pull/11042) usbdev: config USBDEV_TRACE_INITIALIDSET when disbale USBDEV_TRACE +* [#11161](https://github.com/apache/nuttx/pull/11161) usbdev: Solve some problems of USB hotplug +* [#10985](https://github.com/apache/nuttx/pull/10985) usrsock: Make the field of usrsock_request native alignment +* [#11103](https://github.com/apache/nuttx/pull/11103) usrsock: rpmsg_server: Keep msg order in recursive call +* [#11107](https://github.com/apache/nuttx/pull/11107) usrsock: socket fallback with ENETDOWN +* [#10874](https://github.com/apache/nuttx/pull/10874) video: fb: Add fb_register_device +* [#10812](https://github.com/apache/nuttx/pull/10812) video: goldfish: Remove the vsync residual code +* [#11380](https://github.com/apache/nuttx/pull/11380) video: goldfish: optimize goldfish fb register +* [#11249](https://github.com/apache/nuttx/pull/11249) video: video.c: modify set_buf call seqence in start_capture function. +* [#11224](https://github.com/apache/nuttx/pull/11224) video: wait when the vsync queue is full in FBIO_WAITFORVSYNC +* [#11382](https://github.com/apache/nuttx/pull/11382) virtio: Support for setting MAC addresses of the virtio-net interfaces +* [#11385](https://github.com/apache/nuttx/pull/11385) virtio: virtio-gpu: convert virito-gpu fb_register to virtio_gpu_fb_register +* [#11201](https://github.com/apache/nuttx/pull/11201) virtio: Virtio Qemu 8.1.2 issues fix +* [#11013](https://github.com/apache/nuttx/pull/11013) wireless: bluetooth: Add option to set the HCI TX thread affinity while running with SMP enabled +* [#11072](https://github.com/apache/nuttx/pull/11072) wireless: bluetooth: rpmsg depends on RPTUN + +Board Support +New Board Support +arm +* [#10987](https://github.com/apache/nuttx/pull/10987) gd32f4: add gd32f470i board support +* [#11094](https://github.com/apache/nuttx/pull/11094) stm32: add support to LINUM-STM32H753BI board +* [#10990](https://github.com/apache/nuttx/pull/10990) stm32: add support to STM32F401RC-RS485 board +* [#11358](https://github.com/apache/nuttx/pull/11358) stm32h7: linum-stm32h753bi: Add modbus example using usart6 +* [#11276](https://github.com/apache/nuttx/pull/11276) seeed-xiao-rp2040: Add initial board support + +xtensa +* [#10976](https://github.com/apache/nuttx/pull/10976) Add ESP32-2432S028 board +* [#10928](https://github.com/apache/nuttx/pull/10928) esp32s3-box: Support hardware version 3 + +risc-v +* [#11379](https://github.com/apache/nuttx/pull/11379) Initial support for CanMV-k230 board +* [#11377](https://github.com/apache/nuttx/pull/11377) Add support for PINE64 Ox64 BL808 SBC + +Board Improvements +* [#11056](https://github.com/apache/nuttx/pull/11056) Modify test "ramtest" path +* [#11192](https://github.com/apache/nuttx/pull/11192) remove obsolete CONFIG_EXAMPLES_FOC_IPHASE_ADC option + +arm +* [#11101](https://github.com/apache/nuttx/pull/11101) cxd56xx: Add cxd5610 gnss driver + +* [#11373](https://github.com/apache/nuttx/pull/11373) gd32f4xx: change gd32f470z board code + +* [#11193](https://github.com/apache/nuttx/pull/11193) imx6: Fix sabre-6quad:libcxx + +* [#11310](https://github.com/apache/nuttx/pull/11310) nrf52: nrf52832-dk: add timer example +* [#10835](https://github.com/apache/nuttx/pull/10835) nrf52: remove CONFIG_ARMV7M_SYSTICK form tickless configs + +* [#11150](https://github.com/apache/nuttx/pull/11150) sama5: Add QSPI support SAMA5 +* [#11151](https://github.com/apache/nuttx/pull/11151) sama5: sama5d2-xult: add support for QSPI flash and nxffs + +* [#11117](https://github.com/apache/nuttx/pull/11117) stm32: b-g431b-esc1: don't use CONFIG_STM32_USE_LEGACY_PINMAP=y +* [#11306](https://github.com/apache/nuttx/pull/11306) stm32h7: fix config conflict +* [#11214](https://github.com/apache/nuttx/pull/11214) stm32h7: linum-stm32h753bi: Add support to RTC and alarm +* [#11167](https://github.com/apache/nuttx/pull/11167) stm32h7: linum-stm32h753bi: Added suport to userlerds library. +* [#11265](https://github.com/apache/nuttx/pull/11265) stm32f4: stm32f401rc-rs485: Add sdcard support +* [#11217](https://github.com/apache/nuttx/pull/11217) stm32f4: stm32f401rc-rs485: Add buttons support +* [#11169](https://github.com/apache/nuttx/pull/11169) stm32f4: stm32f401rc-rs485: add support to userleds +* [#11255](https://github.com/apache/nuttx/pull/11255) stm32f4: stm32f401rc-rs485: Fix f401rc flash size +risc-v +* [#10736](https://github.com/apache/nuttx/pull/10736) esp32c3: pm: Let PM_PROCFS depend on FS_PROCFS_REGISTER +* [#11418](https://github.com/apache/nuttx/pull/11418) esp32c6: Add ostest defconfig +* [#11096](https://github.com/apache/nuttx/pull/11096) mpfs: Add option for board specific PMP configuration +* [#11262](https://github.com/apache/nuttx/pull/11262) qemu-rv: rv-virt/knsh: Set correct RAM_START and RAM_SIZE +* [#11397](https://github.com/apache/nuttx/pull/11397) qemu-rv: Virtio sound +sim +* [#10960](https://github.com/apache/nuttx/pull/10960) fix Cygwin/MSYS2 ld: unrecognized option '-z' +* [#11290](https://github.com/apache/nuttx/pull/11290) nxscope: remove CONFIG_ALLSYMS=y +xtensa +* [#11142](https://github.com/apache/nuttx/pull/11142) esp32: Add LVGL defconfig +* [#11229](https://github.com/apache/nuttx/pull/11229) esp32: Add support enconder to ESP32-2432S028 +* [#10961](https://github.com/apache/nuttx/pull/10961) esp32: Add wifishare board config and documentation +* [#10996](https://github.com/apache/nuttx/pull/10996) esp32: Rename Shift game to Brickmatch and add an board example to esp32-devkitc +* [#11417](https://github.com/apache/nuttx/pull/11417) esp32<|s2|s3>_board_spiflash: Fix error message about SmartFS init +* [#11425](https://github.com/apache/nuttx/pull/11425) esp32s2: Increase init task stack size to 3072 +* [#11156](https://github.com/apache/nuttx/pull/11156) esp32s3: Link stack checking function and data to SRAM when enable flash or PSRAM driver +* [#11342](https://github.com/apache/nuttx/pull/11342) esp32s3: add esp32s3-devkit:toywasm kconfig +* [#11295](https://github.com/apache/nuttx/pull/11295) esp32s3: Add rtc defconfig +* [#10885](https://github.com/apache/nuttx/pull/10885) ESP32S3-EYE: GPIO and button support +* [#10884](https://github.com/apache/nuttx/pull/10884) ESP32-S3-EYE: I2C, SPI and LCD support +* [#10883](https://github.com/apache/nuttx/pull/10883) ESP32-S3-EYE: Wifi +File System +Improvements +* [#10995](https://github.com/apache/nuttx/pull/10995) Change inode_checkflags to static function +* [#11445](https://github.com/apache/nuttx/pull/11445) Fix hostfs after uid/gid changes +* [#11433](https://github.com/apache/nuttx/pull/11433) fat: Fix number of data clusters usable for fat driver +* [#11196](https://github.com/apache/nuttx/pull/11196) fat: fix ubsan warning of shift-out-of-bounds +* [#10706](https://github.com/apache/nuttx/pull/10706) fs_epoll: several epoll problems fix +* [#11125](https://github.com/apache/nuttx/pull/11125) fs_files.c: make sure that fs_getfilep is not interrupted when holding mutex +* [#11349](https://github.com/apache/nuttx/pull/11349) fs_gettype:add zipfs magic +* [#11446](https://github.com/apache/nuttx/pull/11446) hostfs:fix structure layout inconsistency in hostfs +* [#11090](https://github.com/apache/nuttx/pull/11090) inode: Change inode_unlink to static function +* [#11188](https://github.com/apache/nuttx/pull/11188) inode: check file list before memcpy +* [#11140](https://github.com/apache/nuttx/pull/11140) inode: improve the performance of get file pointer +* [#11318](https://github.com/apache/nuttx/pull/11318) proc: Fix groupfd to get fd by group instead of current tcb +* [#11449](https://github.com/apache/nuttx/pull/11449) procfs add poll support +* [#11360](https://github.com/apache/nuttx/pull/11360) procfs/cpuinfo: Zero copylen in cpuinfo_read +* [#11039](https://github.com/apache/nuttx/pull/11039) rename: fix use after free issue about rename +* [#11451](https://github.com/apache/nuttx/pull/11451) smartfs: Add necessary aligned access in smartfs_rename() +* [#11248](https://github.com/apache/nuttx/pull/11248) spiffs: correct mutex lock cycle of spiffs +* [#10804](https://github.com/apache/nuttx/pull/10804) support zipfs,can mount zipfile +* [#11232](https://github.com/apache/nuttx/pull/11232) tmpfs: fix an integer overflow +* [#10880](https://github.com/apache/nuttx/pull/10880) vfs: add munmap logic to pseudofs + +Networking +Improvements +* [#10813](https://github.com/apache/nuttx/pull/10813) Add CONFIG_NET_ICMPv6_ROUTER_LIFETIME +* [#10893](https://github.com/apache/nuttx/pull/10893) allow icmpv6 and udp to find the dev by the ifindex with s_boundto. +* [#10916](https://github.com/apache/nuttx/pull/10916) Fix RNDIS compilation error +* [#10819](https://github.com/apache/nuttx/pull/10819) local: Fix the problem that local udp socketpair cannot release fifo files. +* [#11443](https://github.com/apache/nuttx/pull/11443) local: make the call return of each process consistent with linux +* [#11015](https://github.com/apache/nuttx/pull/11015) local: Support SO_SNDBUF option in getsockopt +* [#11289](https://github.com/apache/nuttx/pull/11289) loopback: Fix flags of lo device +* [#11324](https://github.com/apache/nuttx/pull/11324) icmpv6:Optimize the process of obtaining the IPv6 address through RA. +* [#11010](https://github.com/apache/nuttx/pull/11010) icmpv6: Fix net mask logic in icmpv6_setaddresses +* [#11197](https://github.com/apache/nuttx/pull/11197) igmp: call IFF_SET_IPv4 when igmp_send +* [#11384](https://github.com/apache/nuttx/pull/11384) ipv6: Fix source address with many addresses in same network +* [#11378](https://github.com/apache/nuttx/pull/11378) ipv6: Move xxx_ipv6multicast from arch to common code +* [#10894](https://github.com/apache/nuttx/pull/10894) netdb: When set a dns nameserver which already exists, retrun OK +* [#11076](https://github.com/apache/nuttx/pull/11076) netconfig: Enable SOCK_CLOEXEC for ioctl sockets +* [#11396](https://github.com/apache/nuttx/pull/11396) netdev: Modify the logic for setting the IFF_RUNNING status of interfaces. +* [#11110](https://github.com/apache/nuttx/pull/11110) Simplify getting value for different domain +* [#11054](https://github.com/apache/nuttx/pull/11054) Support multiple IPv6 address per netdev +* [#11406](https://github.com/apache/nuttx/pull/11406) tcp: Recover from iob shortage with TCP_WRITE_BUFFERS +* [#11126](https://github.com/apache/nuttx/pull/11126) tcp: Support initial sequence number described in RFC 6528 +* [#11009](https://github.com/apache/nuttx/pull/11009) tun: Fix the error of calling tun_close when tun_txavail or tun_txavail_work is executed +* [#10986](https://github.com/apache/nuttx/pull/10986) tun: Fix the error of calling tun_close when tun_txavail or tun_txavail_work is executed +* [#11372](https://github.com/apache/nuttx/pull/11372) udp: Add check when sending too big packet without IP frag +* [#11210](https://github.com/apache/nuttx/pull/11210) udp: Add support for SO_TIMESTAMP +* [#11120](https://github.com/apache/nuttx/pull/11120) udp: modify ipv4 multicast to allow different conn to join simultaneously +* [#10878](https://github.com/apache/nuttx/pull/10878) usersock: Return -ENOSUPP directly if domain isn't equal to PF_INET/PF_INET6 +Security Issues Fixed In This Release +Compatibility Concerns +* [#10605](https://github.com/apache/nuttx/pull/10605)  Implement ticket spinlock + +A proposal to slove #1488 + +Implement ticket spinlock. + + +* [#10861](https://github.com/apache/nuttx/pull/10861) spinlock: Add spin_lock_init and spin_is_locked macro + +align with Linux api naming. + + +* [#11102](https://github.com/apache/nuttx/pull/11102) sched: explicitly select the cpuload clock source configuration + +Different configurations require different dependencies. +Explicitly select dependencies to avoid automatically selecting +inappropriate configurations. + +* [#11334](https://github.com/apache/nuttx/pull/11334) stm32h7_adc: Dynamically set clock prescaler and BOOST + +First commit is aligning naming and is a breaking change. + +* [#10827](https://github.com/apache/nuttx/pull/10827) Improve adjtime() functionality + +Prior pull request #9084 and issue #8858 added basic adjtime() +support for the SAMv7 platform. + +This pull request adds support for STM32 platform. + +In addition I have made a few changes to the adjtime() configuration +options: + +1) Previously adjustments less than 1 microsecond per tick would be +   completely ignored. Now they are applied over a shorter period at +   a rate of 1 us per tick. + +2) Previously CLOCK_ADJTIME_PERIOD was in units of 1/100th of second. +   Change to milliseconds to be more generally useful unit. +   Change setting name to CLOCK_ADJTIME_PERIOD_MS to make the unit change +   easier to notice. + +3) Previously CLOCK_ADJTIME_SLEWLIMIT was in percentage. +   Most clock crystals have better accuracy than 1%, so the minimum slew +   rate was excessive. Change to CLOCK_ADJTIME_SLEWLIMIT_PPM with setting +   value in parts per million. + +4) No need to use floating point math in clock_adjtime.c. + +Impact + +Users who have used CLOCK_ADJTIME_PERIOD and CLOCK_ADJTIME_SLEWLIMIT  +settings should update their configuration. New CLOCK_ADJTIME_PERIOD_MS is +10x the old period value, and new CLOCK_ADJTIME_SLEWLIMIT_PPM is 10000 times +the old slewlimit. \ No newline at end of file