- kservice: Use C89 format to avoid warnings; Fix start address misalignment issue; Remove malloc scheduler lock, fix incorrect use of memheap lock; Add MT-safe console support
- rtdef: Add rt_always_inline operation function
- cpu: Optimize CPU scheduler
- thread: Remove thread reference count
- rthw: Add rt_hw_interrupt_uninstall declaration
- Add hooks for malloc service; Support hook lists (add multiple hooks in a single hook node)
- Optimize system scheduler; Improve rt_vsnprintf
- Prohibit nested blocking IPC interfaces such as free, malloc inside spinlock
- Rename RT_DEBUGING_INIT to RT_DEBUGING_AUTO_INIT
- Define standard spinlock to require scheduler to be disabled, all external spinlocks use disable/enable scheduler mode
- Add RT_USING_NANO macro, support BSP one-click switch to Nano version
- Add functionality to release mutex locks when deleting threads
- Add support for controlling configuration of rt_sem to set the maximum value of semaphore
- can: Optimize can close order ([#8780](https://github.com/RT-Thread/rt-thread/pull/8780))
- serial: Add tty name allocation mechanism when using dm, support more baud rates; Add tty related hook functions; Add serial framework device tree support; Fix serial_v2 memory leak issue; Fix virtual serial port data can only be successfully sent once issue
- pic: Add pic-gic support
- pinctrl: Add pinctrl/pin-irqchip support
- hwtimer: Improve Cortex®-a, ARMv8 driver
- DFS
- Add exfat configuration;
- dfs_v1: Fix assertion bug caused by FATFS file system using cat command
- dfs_v2:
- Update Smart kernel to default dfsv2; Update elmfat version from r14b to r15
- at: Optimize at formatting output to avoid conflicts between multiple at client and server outputs; Optimize AT component, and fix potential memory leak issue
- Add blocks mechanism for fal, support adding special block definitions
- MProtect
- Add MPU abstraction layer design, support ARMv7-M, ARMv8-M architecture
- Others
- Synchronize differences in kernel, file system, etc.; Remove vmm
- Fix -Wmissing-prototypes warning
## Libcpu
- AARCH64: Fix kernel entry symbol; Fix trace information not visible issue under ulog environment; Use device tree to initialize CPU and memory; Improve IRQ disable/enable performance
- ARM: Add support for Cortex®-M85, Cortex®-R52 architectures; Fix abnormal SMP operation issue in Cortex®-A ([#8517](https://github.com/RT-Thread/rt-thread/pull/8517))
- Support for the overall backtrace framework in the RT-Thread kernel; Added weak implementation of architecture-level backtrace service; Added support for RV64 architecture
- Standardize the Libcpu group name as libcpu
## Tools
- Support for LLVMEmbeddedToolchainForArm-17.0.1 toolchain
- Fixed rtconfig.h file recognition issue in MPU in scripts
- rt_studio: Fixed missing {cross_toolchain_flags} field issue when importing bsp projects in rt-studio
- env: Fixed built-in python2 subprocess issue
## Action
- Fixed Doxygen CI issue
- Added CI monitoring for BSP
- Added bsp attach check CI
## Utest
- Added memory system test cases; Added serial_v2 framework test cases; Added mm test cases; Added scheduler test cases
## BSP
- Improved several bsp driver files; Fixed some issues in bsp
- RT-Smart support: DFZU2EG MPSoC, cv181x-riscv
- STM32: STM32 G0, G4, L0, L4 series support one-click switch to RT-Thread Nano version; STM32 Nucleo series added board-level identification macros; STM32 series added Nano version attach config related CI
- Fixed issue where the timer would not run when the user space retrieves the current time and then retrieves it again in kernel space, resulting in a negative difference
- Default enabling of epoll/eventfd/signalfd/timerfd/select when using RT-Smart
- Removed prebuilt versions
- Fixed setitimer bug, improved FUTEX support
- Added support for RT-Smart terminal subsystem ([#8672](https://github.com/RT-Thread/rt-thread/pull/8672))
* Fixed two issues with atomic volatile in bsp/simulator compiled in VS2019.
* Added RT_USING_LIBC_ISO_ONLY macro.
* Supported POSIX-compatible errno.
* src/kservice.c
* Improved rt_strerror function compatibility.
* Supported DM device id management; Supported multiple threads receiving the same event at the same time.
* No longer used RT_DEBUG_LOG in rtdebug.h.
* Tidied up debug macros and added RT DEBUGING CONTEXT.
* Fixed User mode MQ receive blocking issue.
* Added priority to message queues supported in POSIX interfaces.
* Removed recursion in mutex; Removed RT_DEBUG_xxx macros.
* Implemented default weak function for rt_hw_cpu_shutdown.
## Components
* **drivers**
* **sensor:** Fixed an error in Sensor-V1 where the return type was inconsistent; Re-implemented sensor framework as Sensor-V2.
* **fdt:** Added the device tree child node search macro.
* **tty:** Fixed a bug on foreground app switch; Supported TCGETA/TCSETAF/TCSETAW/TCSETA commands.
* **serial:** Fixed an issue where the serial port sometimes sent carriage returns repeatedly.
* Supported the Core API for dd2.0.
* **i2c:** Optimized control interface format to add available commands.
* **rtc:** Reconfigurable clock framework; Fixed the bug that triggered the alarm for a single time and repeatedly used the timer that did not start.
* **hwtimer:** Overflow is invalid in oneshot mode.
* **core:** Revised the macros of header files.
* **wlan:** Fixed some variables not used warnings when building.
* Moved the core header files to the path: include/drivers/core.
* **lwp**
* Executed elf with added executable permissions check.
* Supported more features of signals from IEEE Std 1003.1-2017.
* Fixed possible memory leak; Fixed the setup of fake LWP in sys_execve; Fixed socket addr bug; Fixed waitpid function exception.
* Fixed bugs on LWP kill; Fixed exit(2) and added exit_group(2); Fixed rt_memcpy to lwp_memcpy in smart source; Fixed cmd_kill (Fix cmd_kill).
* Added fops for dfs_v2 and fixed warning for eventfd_write and eventfd_read after dfs_v1 changes.
* Cumulative updates of lwip and lwp.
* **libc**
* Updated the allocation mode of the libc timer id.
* Added signalfd for system call, Added eventfd for system call.
* Implemented lightweight timezone configuration.
* Renamed libc.c as posix/stdio.c.
* Optimized the epoll code to remove restrictions on descriptors.
* Adapted rt_channel, increased the generality of some rt_channel functionality on dfs v2, and standardized signalfd.
* **dfs**
* Fixed variable usage errors in dfs elm.c.
* Connected the posix mqueue pair to the file system fd.
* Modified some function prototypes of the dfs_file_ops structure and function declarations.
* Fixed fcntl(F_SETFL) bug, and modified the error code when opening a file failed.
* Cumulative repair of dfs changes, including forced uninstallation and pread/pwrite changes.
* dfs v2: Added cromfs function.
* **utilities**
* Supported ulog_async_output_enabled, Supported adt API for DM.
* Removed zmodem.
* **mm**
* Improved output of list_page.
* Added unmap page API.
* **net**
* **sal/socket:** Fixed a BUG where calling closesocket interface triggered assertions when RT_DEBUG is enabled; Fixed duplicate free on allocated buffer.
* **sal:** Fixed the IPv4 & v6 compiling issue.
* **ktime**
* Added RT_USING_KTIME to Kconfig build.
* Fixed some bugs with ktime.
* Optimized the performance of high-precision timer, deleted a useless function.
* Change the Ktime path to: components/drivers/ktime.
* **sdio**
* Enabled the eMMC internal cache to speed up transmission.
* **finsh**
* Added msh autocomplete suboption feature.
## Drivers Device
* Prepared for device driver v2.0.
## Libcpu
* **aarch64:** Fixed default core binding failure on GICv2; Fixed aarch64 SMP startup failure; Supported hardware atomic; Fixed up FPU storage's size in stack and appended Q16 ~ Q31; Fixed HW atomic_t ops type from dword to qword; Supported public linker scripts; Changed aarch64 trap backtrace & coredump priority rating; Fixed an issue where AARCH64 Qemu failed to compile when SMP was disabled.
* **arm:** Fixed IAR compilation warnings: function "__LDREX" declared implicitly; Modified start_gcc.S; Fixed race condition with ldrex, strex; Fixed header file circular reference issue.
* **arc:** Fixed the thread switching bug in the arc architecture.
* **sim:** Fixed an issue with inconsistent function definitions.
* Added ARCH_ARM_CORTEX_M23 macro definitions.
## Tools
* Fixed .uvoptx/uvopt project name.
* Supported Env for finsh shell.
* Removed --dist-strip command.
* Corrected prompt message.
## Action
* Added CI to compile more drivers for the changed BSP, Added pkgs-test; Added the manual trigger and fail BSP check; Added more config for manual trigger.
* Added manual triggers for all STM32, Added the exp_STM32 SCons.
* Added the repo check for self-use; Added the code_owner review request; Added paths-ignore for format and static check.
* Fixed the path the YAML can't be folded; Fixed the flag of dist.
* Updated env document, Updated qemu for windows doc; Updated quick_start_qemu_windows.
## Utest
* Adding volatile solves the problem that the test fails when the optimization level is high.
* Changed the thread size of the thread_tc thread stack to avoid stack anomalies caused by 64-bit machines; Changed the size of the thread stack to avoid stack anomalies.
* stm32/stm32f407-rt-spark: Release of the first version of rt-spark BSP; Added rt-spark to run utest link snippets under GCC.
* stm32/stm32f401nucleo/rtduino: Supported function switching of docking pins.
* stm32/stm32l431-BearPi: Supported the MPU6050 module.
* stm32/rtduino: Supported tone timers and limited the maximum number of pins checked; Supported function switching of docking pins; Fixed a demo bug and modified the SPI switch function.
* stm32/i2c driver: Replaced stm32_udelay with rt_hw_us_delay.
* stm32/build path: Example Modified the STM32 project generation path.
* qemu
* qemu-virt64-aarch64: Fixed qemu failed to mount elm file system.
* airm2m
* airm2m/air32f103: Synchronized lib changes, including SRAM locking, fixing RTC acquisition frequency errors; Updated the pin num command.
* wch
* wch/riscv/ch32v307v: Added _head_end for link file.
* wch/riscv/ch32v208w: Fixed C++ compiling errors.
- aarch64: Optimize interrupt mode API,Decoupling startup process,Add no device tree mode in PSCI,Fix cache invalidate operation (#7363)
- risc-v:add ioremap for c906
- mips:Fix variable misuse
## Tools
- Add feature to filter out files to file_check.py that do not require cppcheck (#7499)- Add `--add-rtconfig` args for scons when you want to add macro definitions build time.
- Support llvm-arm 16.0; Add llvm-arm workflows.
- Fix cannot select c99 and gnu choice in Keil-MDK
- Fix the deque issue for Env['CPPDEFINES'] (#7541)
- synopsys: Fix timer call-backs, Fix print syntax, Fix GNU toolchain RTT_CC alias, Use RTT_EXEC_PATH for the toolchain location substitution.
- ti/c28x: add support to not disable global interrupt in context-switch to enable zero-latency isr for critical interrupts, add GPIO & pwm & ADC driver, update rt_vsnprintf for compliance with ti c28x cpus,add support to scons-based .project creation.
- stm32: update all bsp projects.
- renesas: add segger rtt function, add tft-lcd lvgl support, add ra6m4-cpk lvgl for spi-lcd support and update rt_spi_bus_attach_device_cspin function, add tft-lcd pin connection description, and fix some bugs, etc.
- nrf5xxx: add spi twi drv for nrf5340, fix the Kconfig of nrf52832, etc.
- gd32: fix bug on spi driver
- apm32: fix apm32f0/apm32f1 gcc startup assembly file bug and fix apm32 drv_eth.c bug, add apm32F0 series MCU support, add apm32 rtt sdio/flash/sdram driver. etc.
- at32: fixed gcc compiling usb driver errors, update for including file position and adding macros, optimize emac and usart driver code, add support usb driver. etc.
- esp32: ESP32_C3 fix compile errors/warnings, igrate to ESP-IDF package, add I2C drivers. ESP32 support applying patch to local IDF. etc.
* use RT_KSERVICE_USING_STDLIB_MEMXXX to replace RT_KSERVICE_USING_STDLIB_MEMCP/MEMSET
* RT_KSERVICE_USING_STDLIB is open by default
* ipc
* Add descriptions for rt_mq_recv and rt_sem_take timeout parameters
* fix parameter name
* enable RT_DEBUG_DEVICE by default and move weak rt_hw_dealy_us in kservice.c
* Updated the Cortex-A of linker scripts for the new version of GCC, Removed C++ global constructor initialization, this method is not used in GCC4.7 and later versions
* remove the register keyword
* rename _rt_scheduler_stack_check as _scheduler_stack_check
- Local variables are used to prevent resource competition
- Write_index bug in rt_ringbuffer_put_force
- Update workqueue
- Add an interface comment
- Remove rt_delayed_work_init()
- Privatize the rt_work_sys_workqueue_init function
- Fix an unexpected suspension of critical condition threads
- Fixed timer ASSERT exception due to multithreaded scheduling
- Optimize the inclusion relationship between dfs.h and dirent.h
- Update finsh
- Restore the FINSH_USING_MSH definition for compatibility
- Expose the finsh_getchar function
- Fixed _cmd_xxx command unavailable due to finsh removal
- Update Kconfig is more hierarchical
- The finsh component can optionally include built-in commands
- Repaie that the table key on msh do not work
- The list-thread command adds the bind core display for multiple cores
- Add support for tasking toolchain
- Add mount/umount cmd
- Fix ringblk_buf error when no longer using dynamic memory
- [timezone] implement timezone
- [DeviceDriver] Change the special device commands form 0x1X to 0x2X. It will avoid same of general device commands
- Update AT
- Update old_urc_table to new_urc_table
- Optimized at socket memory leak modification
- Add at_utils_send virtual function
- Fix at_vprintf and at_vprintfln and end_sign response
- Fix at_server_getchar spelling error
- Add device type USBOTG to redef.h
- [newlib] fix compile error when closing RT_USING_CONSOLE
- Update rtc
- Add RT_DEVICE_CTRL_RTC_GET_TIMEVAL and RT_DEVICE_CTRL_RTC_SET_TIMEVAL ops
- Remove RT_DEVICE_CTRL_RTC_GET_TIME_US and RT_DEVICE_CTRL_RTC_SET_TIME_US. Add RT_DEVICE_CTRL_RTC_GET_TIMEVAL and RT_DEVICE_CTRL_RTC_SET_TIMEVAL. The RT_DEVICE_CTRL_RTC_GET_TIMEVAL cmd can get second time and microsecond time.
- Change core.c/.h name to rtc.c /.h
- Update rt_rtc_dev_register function name to rt_hw_rtc_register
- Change localtime name to localtime_r
- [ethernetif] replace rt_memcpy with SMEMCPY
- [sdio] remove rt_mmcsd_blk_init
- Update time
- Fix an issue where POSIX related functions were not protected for critical sections
- Adjust the judgment logic of posiX related functions to obtain time results
- Rename nonstandard liBC functions and reposition the time.h definition
- Revert the old code
- Fix the sem init check bug in pthread.
- Fix MMC initialization error, write card->csd as card->cid
- Update serial
- Add CTS/RTS flowcontrol
- Implement function of getting window's size(TIOCGWINSZ)
- Optimized RT_USING_POSIX_TERMIOS precompilation
- Serial_v2 support device ops feature
- Fix the problem that serial Close did not clear the callback interface
- Optimize send non-blocking problem when serial_close does not execute rt_completion_done
- Optimize DMA receive processing flow and decouple the driver to call the API interface of the serial port framework
- Added the Serial V2 framework and the Serial port driver based on STM32
- Serial_v2 support device ops feature
- Fix do RT_DEVICE_CTRL_CLOSE cmd when close serial device regardless of DMA config
- Update lwip
- Fix lwIP critical section protection bug
- Set default lwip stack for old bsp folder.
- Change default lwip stack to lwip2.0.3
- Fix delete useless code.
- The "event_callback" will be change by RT-Thread dfs.
- Adjust the string.h position
- LWIP_TIMEVAL_PRIVATE: provided by <sys/time.h>
- LWIP2.0.2 and 2.1.2 remove ERRNO
- Remove ESHUTDOWN from LWIP
- Remove the possible critical zone risk
- Iperf speed test have been stable.
- The overflow problem of lwip rx thread mailbox.
- [pm] Index should be less than PM_MODLUE_MAX_ID
- [cputime] Add sys/errno.h
- Update msh
- Implement tail command
- Fix shell msh_exec memory over-bound.
- Update dfs
- Fix F_GETFL/F_SETFL should be handled by the drivers.
- Change the default maximum number and type of the file system to 4
- Add format_ignore file, exclude fatfs format check
- Add comments for _device_fs
- Update ymodem
- Modified the enabling conditions of YMODEM USING FILE TRANSFER
- Check the file path's legitimacy of'sy' command
- Add new component: rt-link
- [net] Add the function of set [internet up] status, activate the callback.
- [components] Remove uip
- Update ulog
- Using gettimeofday for timestamp get
- Fix thread info show when kernel not startup
- Increase the usec check time
- Add output locker enabled API
- Update FatFs
- Update the mutex protection timeout can be set using Kconfig
- Fix the time dependent function opening condition
## BSP and CPU porting
- Support armclang
- [stm32h750-artpi-h750] Complete bsp
- [ls2k] Fix missing header file applications
- [AT32] Complete BSP
- Add _CRT_DECLARE_NONSTDC_NAMES=0 macro definition in simulator bsp
- Refresh the project and remove rtlibc and duplicate definitions in simulator bsp
- Update libcpu
- Modified the irq handle interface rt_hw_trap_IRq to support intercore IPI interrupt processing
* Fix thread control bug about `RT_THREAD_CTRL_CLOSE` command
* Avoid deadlock (rt_hw_interrupt_disable and rt_enter_critical when enable smp)
* Fix the issue of judging the ready_table of pcpu when multi-core rt_schedule_remove_thread
* Fix the issue that the yield operation cannot release the cpu in time
* Fix the iterator failure for softtimer list timeout check
* Fix rt_timer_list_next_timeout multi-task safe
* Add timer working status query function to software timer
* Fix the software issue when the system timer thread is pending
* Fix the timer/software timer handling issue if the timeout function starts/stops/deletes this timer.
* Fix an issue with rt_timer_start being broken and destroying the timer list
* Fix the bug that the linked list is still mounted when the single timer is not modified
* Add function rt_tick_get_millisecond()
* Fix the delay_until issue
* Add mb mq value overflow-check code
* Fix the rt_event_recv function, if the event met without blocking, assigning thread->event_set/event_info will goes well
* Add the definition of the maximum value of ipc type
* Remove the call of rt_system_object_init/rt_system_tick_init from the code.
* Removes component configuration macro `RT_USING_FINSH` from the kernel
* Use object_find to implement thread_find/device_find
* The cleanup operation is executed before the current thread exits
## Components
* Fix assert in the sys_arch_mbox_fetch function when close socket
* Add dhcp start or stop function to start or stop dhcp.
* Change rt_data_queue_peak to rt_data_queue_peek.
* Update elmfat to R0.14 patch 1.
* Add SAL_INTERNET_CHECK configuration item to support turning on or off the network status check
* Solve the issue that the do_pollfd function processing the underlying network device returns error -1
* Fix the issue that when the network card device calls to close dhcp, the bottom layer no need to call the dhcp_stop function to close dhcp
* Add the function of judging the network card up and down in the sal_accept function
* Modify the spelling error of the macro definition, modify the printing error when printing the IMEI number
* Fix the issue that the server closed the connection when web socket requests the data that comes back from the server, and the socket status is incorrectly judged at that point
* Fix the issue of incorrect sal_getaddrinfo release when sal socket supports multiple network cards
* Update AT socket
* Support alloc socket dynamically with at device
* Update AT_SW_VERSION and adjust at_socket_ops
* Adjust where the AT socket callback function
* Fix at_client, avoid creating the same client repeatedly and prevent working exceptions and memory leaks.
* Fix the bug that rx_notice out of sync when the data is received after last rt_device_read() is zero
* [FinSH] rm command supports recursive deletion of folders
* Add clear command for FINSH
* [posix] Implement usleep function
* Fix the issue of pthreads compilation error when using the new version of newlib; at the same time solve the problem of pthreads under 64-bit;
* [dlmodule] Fix crash when dlmodule exits
* Add priority & stack_size param parsing for dlmodule
* libc adds getline/getdelim functions
* Change the header file included in some libc files from <rtthread.h> to <rtconfig.h> to narrow the scope of inclusion to prevent recursive compilation
* [jffs2] error check of rt_event_recv()
* Add rt_data_queue_deinit and fix bug of dataqueue
* Change log in device driver framework
* [pin] Add rt_pin_get to pin frame
* [PM] Update RT-Thread PM2.0 framework
* [audio] Fix compile warning, undefine var
* [serial] Fix the crash caused when the serial port receiving buffer is full and ULOG_USING_ISR_LOG is not turned on
* [wlan] Add raw frame send interface and Management frame filter interface
* [Sensor] Add vendor info and sensor types for cmd
* [Sensor] Support custom commands for rt_sensor_control
* Split the component automatic initialization to component automatic initialization and main funciton;
* Add spin lock API in SMP mode;
* Fix RT_IDLE_HOOK spelling issue;
* Add thread waiting for message queue when queue is full;
* Fix the issue of delete mq in `rt_mq_create` in some abnormal case;
* Remove the C++ keywords in the`rt_console_set_device`function;
* Remove the `suspend_thread_count` member from memory_pool structure;
* Fix the issue when block = NULL in rt_mp_free;
* Fix the issue of incorrect scheduling task sequence caused by rt_thread_yeild in system scheduling;
* Fix the issue that the interrupt is opened too late and cause the signal handling delayed;
* When disable SMP, `cpu.c` will not be added into project by default;
* Fix the issue that `rt_thread_exit` turned on the interrupt prematurely in the SMP mode, so other cores might delete this task, causing the issue in subsequent function stacks;
* Fix the issue of critical protection when `rt_thread_delete` change the status of thread;
## Components
* Fix the issue of mPool size in C++ / Queue;
* Add the error status return in C++ / Thread task join/wait function;
* Fix compilation warning in DFS/ELM FatFS;
* Add support for Linux NFS Server in DFS/NFS;
* Fix mkfs issue in DFS/UFFS;
* Add ftruncate, flock, getuid, umask APIs;
* Fix the display issue of fd with offset in list_fd command;
* Add `dfs_mount_device` API to mount a file system on a device which is already in mount_table;
* Rename the C++ keywords in DFS/rename function;
* Connnect dfs/poll, select with RT_USING_POSIX in Kconfig;
* Optimize the part of the code of finsh to make it more simple;
* When RT_USING_DEVICE is not used, finsh can use the `rt_hw_console_getchar()` function which is simple to implement and not using the device framework;
* Increase the line length of the finsh shell to more than 256 characters;
* utest can support clang compiler and C++ compiler;
* Fix possible cross-boundary issues in ulog;
* Fix compilation warning in `ulog/ulog_console_backend_output`;
* Add support for file sending and receiving feature in YModem;
* CRC16 can be calculated without the lookup talbe to reduce code size in YModem component;
* Fix the issue that stack may be wrongly released during pthread/destory;
* Fix the possible memory leaks issue which caused by pthread_create abnormal case;
* The timer-related APIs under different compiler of libc are moved to the `libc\compilers\common` folder;
* Remove redundant definitions in `dlib/sys/unistd.h` (which will cause compilation warnings);
* Add `sys/errno.h` and`sys/signal.h` header files under dlib;
* Freemodbus is no longer in the kernel, and split it as a standalone softwre package;
* AT socket updated to v1.3.0:
- Add multi-client and multi-device function support in AT Socket, and improve the dirty data handling when AT device hardware module reboot;
- Support netdev network card feature, which can manage and control AT device network connection through the network card interface;
* Improve AT Server function support in AT components, add AT Server data sending and receiving interfaces `at_server_send ()` and `at_server_recv ()`;
* Fix the issue of `closesocket()` in SAL component when socket closing failure after `shutdown()`;
* Improve `sal_bind ()` network card binding related function in SAL component;
* Add IPV6 related options configuration and function support to SAL and netdev;
* Improve ping command error handling and log display in the netdev;
* Add hostname configuration options and functions in lwIP component;
* Fix the assertion issue of `sys_arch_mbox_fetch()` in lwIP which may occur when a socket is closed;
* Add network card uninstallation function and support for dhcpd service stop function to the lwip component;
* Add the value checking of semaphore (the maximum value of semaphore is up to 65535)
* Fix the 64-bit issue in kservice.c
* Add the checking and assertion of re-initialization of object.
* In the rt_enter_critical/rt_exit_critical function, add the checking of whether scheduler is startup or not.
* Fix the signal issue under SMP and the issue of signal information list in signal.
* Add 64-bit processor support in slab memory allocation.
* Fix the definition issue of `ENOTSUP` in libc_errno.h.
* Simplify the rtdbg.h file and use ulog to make log/debug system easier to use.
* Add the configuration of RT_USING_ARCH_DATA_TYPE, `rt_int8_t/.../rt_uint32_t` and other basic data types can be defined by BSP itself. (It is recommended to put them into the rtconfig_project.h file, so that this file can be automatically included in rtconfig.h when menuconfig generates it.)
* Add `RT_Device_Class_Sensor` type devices;
* In the case of single core, the definition of `rt_hw_spin_lock/rt_hw_spin_unlock` is redefined as the disable/enable interrupt.
* Add the `rt_strnlen()` function in kservice.c.
* Support the long long type in rt_kprintf (HubertXie);
## Components
* Remove CMSIS and move to software package as CMSIS package.
* Remove logtrace component. The system log system switches to ulog;
* Add more code to support AC6 tool chain in some BSP and components;
* In DFS file system component, clean up the log and fix the mkfs issue when index may be out of range.
* Split the running mode from sleep mode in power management, and the frequency change should be clearer. Power management is not use idle hook but execute the sleep action in idle thread directly. (How to use power management, please visit programming document for details)
* Cleanup the log of MMC/SD driver framework;
* Rewrite Sensor Framework, replace the original C++ implementation with C version, and add some corresponding sensor software packages; To use the sensor packages, please use this release;
* Add the DMA transmission operation in the serial driver framework;
* Add the consistency protection to tc_flush routine of serial driver (loogg).
* Add rt_sfud_flash_find_by_dev_name API in SFUD.
* When the Pipe device closed, if it is an unnamed Pipe device and the open count is 0, this Pipe device will be deleted.
* The delayed work implementation is added to workqueue, and the workqueue of the system is added as an option.
* Fix the data loss issue when using DMA transmission in USB CDC.
* Change the return type of finsh_getchar to int;
* Fix the errno issue in newlib/GCC tool chain.
* Change the management of pthreads to POSIX thread array instead of mapping pthread_t directly to rt_thread_t; Change the fields definition more similar with newlib/glibc in pthreads.
* Fix the thread name output in ulog.
* Add loop parameter in utest, then executes test cases repeatedly; Add thread parameter in utest to execute testcase in a new thread.
* Add delay in handshake phase to protect incomplete data reception in YModem component.
* Add netdev component, abstract netdev concept, used to management and control network interface device, and provide netdev operation commands, including ping/ifconfig/dns/netstat etc;
* Modify SAL for netdev, that is, adds the judgment of netdev status and information when the socket creating and data transmitting;
* Add options and types for UDP multicast traffic handling and IPPROTO_IP in SAL;
* Fix `itctrol()` function not support to control socketfd issues in SAL;
* Improve error log processing in AT socket;
* Fix serial receive data failed issues when AT client initialization is not completed;
* Add ES32 chip BSP from Shanghai Eastsoft Microelectronics Co., Ltd. (EastSoft provides maintenance and support);
* Add GD32E230K-start, with ARM Cortex-M23 core BSP (xuzhuoyi)
* Add IMXRT1021-EVK BSP (NXP provides maintenance and support);
* Add the ETH hardware checksum option in IMXRT1052 ETH driver;
* Add more peripheral drivers, GPIO, LCD, SPI, camera, etc. in Kendryte K210 BSP.
* Cleanup the LPC 4088 BSP to use main function entry and support menuconfig;
* Add LPC1114 BSP with UART driver (SASANO Takayoshi, Japan);
* The double Frame Buffer mechanism and touch screen driver are added in Godson 1C BSP, then it can better to support Persimmon UI (sundm75).
* Add watchdog driver in Godson 1C BSP(sundm75);
* Add MM32 chip BSP from Shanghai MindMotion Microelectronics Co., Ltd. (MindMotion provides maintenance and support);
* Fix the SysTick interrupt handling issue in nRF52832 and add menuconfig configuration file.
* Add QSPI and SPI flash driver to Nuvoton M487 BSP (bluebear 233)
* Change the CPU porting to libcpu/arm/cortex-a folder in QEMU-VExpress A9/IMX6UL BSP;
* In QEMU-VExpress A9 BSP, the MAC address associated with the local MAC address is used for a unified MAC address in the network.
* remove stm32f0x, stm32f7-disco, stm32f107, stm32f40x, stm32l072, stm32l475-iot-disco, stm32l476-nucleo BSP (when the new STM32 BSP can completely replace these old BSP, these BSP will be removed);
* For the new STM32 BSP:
* Add CAN driver (ylz0923)
* Add CAN driver to stm32f103-fire-arbitrary (ylz0923)
* stm32f746-st-disco with LCD, watchdog, SDCard, ethernet, Flash and other drivers (Jinsheng)
* More board support is added to the new STM32 BSP:
* STm32f103-dofly-M3S Dofly STM32F103 Development Board
* stm32f103-mini-system, the minimum system board for STM32F103 (daizhiwang)
* stm32f401-st-nucleo
* stm32f405-smdz-breadfruit sanmu electronic stm32405 development board (sunlichao)
* stm32f469-st-disco
* stm32h743-atk-apollo (whj4674672)
* stm32l4r9-st-eval
* stm32l053-st-nucleo (sun_shine)
* stm32l475-st-discovery
* stm32l476-st-nucleo (Vincent-VG)
* stm32l496-ali-developer
* Add the ARC support for Synopsys Design Ware ARC EM Starter Kit (Synopsys provides maintenance and support);
* The SCI driver is added to the TMS320F28379D BSP (xuzuoyi).
* Add W60X Wi-Fi SoC chip BSP from Winner Microelectronics Co.,Ltd. (Winner Micro and RealThread provide maintenance and support);
* Fix the UART2 IO configuration issue in X1000 UART driver (Zhou Yanjie);
* Add SConscript file for each CPU porting.
* Cleanup the libcpu/arm/cortex-a code;
* The _rt_hw_context_switch_interrupt/_rt_hw_context_switch is separated in TI DSP TMS320F28379D BSP (xuzuoyi);
## Tool
* Add Makefile generation feature in scons with command `scons –target=makefile -s`. Then developer can use make to build RT-Thread under Linux or Windows.
* Add Eclipse project generation feature in scons with command `scons –target=eclipse -s`, which will put the necessary information in `.cproject` and `.project` files in current BSP folder. The developer can use Eclipse to build RT-Thread.
* Fix the multi-group same name issue when generating Keil MDK project file and add a library file into the SConscript (Eric Qiang);
* Change the critical lock/unlock to dfs_lock/unlock in `getcwd()` function of DFS (the critical lock/unlock is different in SMP environment);
* Rewrite `list_thread/list_*` implementation of finsh cmd to avoid multi-core competition case;
* Fix the `aio_result` issue, which is returned by `aio_read_work` in AIO; (fullhan)
* Fix the mmap issue when the addr parameter is NULL; (fullhan)
* Modify the `_sys_istty` function in armlibc to correctly handle STDIN/STDOUT/STDERR; (gbcwbz)
* Modify the `_write_r` function in newlib to correctly handle stdout.
* Add lightweight processes (lwP) and corresponding system calls;
* the lwP user application environment will be added later;
* Fix the at_socket issue when socket is a null pointer; (thomas onegd)
* Fix the select event issue in `at_recvfrom()` function in at_socket;
* Divide SAL into `sal_socket_ops/sal_proto_ops` and sal_proto_ops is implemented with gethostbyname/getaddrinfo ops etc.
* Add socket TLS layer in SAL, that is, upper application can be supported by encrypted transmission without considering lowlevel TLS at all.
* Fix the length issue of `ulog_strcpy`, which should be not exceed `ULOG_LINE_BUF_SIZE`;
* Add the macro definition of hexadecimal log output to ulog; (HubretXie)
* Add uTest component. The uTest is a unit test framework on RT-Thread, and can also be used for automatic testing on board with external Python scripts.
* Fix some compilation warnings and enumeration mismatches in drivers/audio;
* Fix the `can_rx/can_tx` issue, which is not cleared to NULL when CAN device is closed in drivers/can; (xeonxu)
* Fix drivers/hwtimer, time acquisition issue with counting down mode;
* Add drivers/adc driver framework;
* Fix the tick compensation issue when enable interrupt too early; (geniusgogo)
* Add `RT_SERIAL_USING_DMA` option in drivers/serial;
* Add QSPI support in drivers/spi framework;
* Add QSPI support in SFUD (based on the QSPI peripheral of stm32); SFUD is upgraded to version 1.1.0;
* Optimize SPI take/release function call in spi_msd;
* Fix the `blk_size` issue in `rt_rbb_blk_alloc()`;
* Fix the FS USB issue in `_get_descriptor` function;
* Fix the empty password issue in AP mode of drivers/wlan;
* Fix the return type issue in drivers/wlan;
* Remove the duplicate opening file check when open a file;
# BSP
* Change the name parameter to `cosnt char *` in `rt_hw_interrupt_install` function; (liruncong)
* Rewrite the RISC-V porting layer to make as a common and standalone porting layer for RISC-V IMAC 32/64;
* Fix `$` warning issue in Kconfig files of each BSP;
* Add the LPC54114-lite BSP, including GPIO, I2C, SDCard, SPI, SPI Flash, UART driver;
* Add Nuvoton-M487 BSP, including UART, EMAC driver; (Bluebear 233)
* Add Kendryte K210 BSP with RISC-V64 dual-core SMP BSP, including UART driver, also verified with micropython;
* Add RV32M1 VEGA BSP, including GPIO, I2C, SDCard, UART and other drivers;
* Fix the CAN driver issue in STM32F4XX-HAL BSP; (xeonxu)
* Fix UART DMA settings issue in STM32F10x/STM32F40x BSP; (zhouchuanfu)
* Fix the HEAP_BEGIN definition issue in STM32H743-Nucleo BSP; (nongxiaoming)
* Fix GPIO configuration issue in stm32f10x-HAL; (Wu Han)
* Change stm32f107 BSP as main function entry; (whj4674672)
* Fix the serial interrupt handling issue in stm32f10x BSP;
* Add PWM, RTC and watchdog drivers to stm32f10x-HAL BSP; (XXXXzzzz000)
* Fix the watchdog driver issue in stm32f4xx-HAL BSP; (XXXXzzzz000)
* Use lwIP version 2.x in stm32f40x/stm32f107 BSP.
* Fix the link issue when enable cmBacktrace package in stm32f4xx-HAL BSP; (xeonxu)
* Support Audio and microphones features in stm32f429-apollo BSP;
* Enable dlmodule support in x86 BSP; (SASANO Takayoshi)
* Addd uTest section in the link script of qemu-vexpress-a9/stm32f429-atk-apollo BSP for automatic testing;
* Change the license to Apache License v2.0 in Godson 1C BSP; (sundm75)
* Add the new BSP framework for STM32 serial chip, such as STM32 G0/F0/L0/F1/F4/F7/H7. In new BSP framework, the SoC drivers is reused. And in same time, lots of STM32 boards are supportted with new BSP framework:
* STM32F091-Nucleo Development Board BSP
* STM32F411-Nucleo Development Board BSP
* STM32L432-Nucleo Development Board BSP; (sun_shine)
* STM32F407-Discovery Development Board BSP
* STM32F446-Nucleo Development Board BSP; (andeyqi)
* STM32F746-Discovery Development Board BSP; (jinsheng)
* STM32F767-Nucleo Development Board BSP; (e31207077)
* STM32G071-Nucleo Development Board BSP;
* ATK STM32F103 NANO Development Board BSP
* ATK STM32F407 Explorer Development Board BSP
* ATK STM32F429 Apollo Development Board BSP
* ATK STM32F767 Apollo Development Board BSP
* ATK STM32L475 Pandora IoT Development Board BSP
* Fire STM32F103 Arbitrary Development Board BSP
* Fire STM32F429 Challenger Development Board BSP
* Fire STM32F767 Challenger Development Board BSP; (Hao Zhu)
* ArmFly STM32F429-v6 Development Board BSP
* STM32F103 iBox development board BSP; (dingo1688)
* Dofly STM32F103 Development Board; (FindYGL)
* STM32F107 uC/Eval Development Board BSP; (whj4674672)
* and more, there are more developers involved for stm32 BSP framework, they are HubretXie, Hao Zhu, e190, etc. to improve the STM32 public driver.
* Add SWM320 BSP of Synwit.cn, including GPIO, HW Timer, I2C, Watchdog, PWM, RTC, SPI, UART, etc.; (provided and maintained by Synwit)
* Add TI TMS320F28379D BSP, the first DSP chip supported on RT-Thread; (xuzhuoyi)
* Fix USB driver issue in X1000; (Zhou YanJie)
* Add BSP for Synopsys Design Ware ARC EM Starter Kit, bsp/synopsys/emsk_em9d, EM9D core, including GPIO, UART and other drivers; (provided and maintained by Synopsys)
# Tool
* Provide more inforamtion when the tool chain does not exist;
* Add a draft Segger Embedded Studio project file generation command. Note that the tool chain in SES is a special version not the newlib.
* Fix the IAR library link command issue when use scons command line under;
* Fix the BSP path issue in scons `str(Dir('#'))`;
* Add `scons --pyconfig-silent` command to add some Kconfig configurations and to generate `.config` and `rtconfig.h` files;
* Update the `scons --dist` command to adapt to the new BSP framework;
* Modify the mkromfs.py script. Fix the corresponding C code generation When the romfs contains empty files or empty folders;
* Fix the issue of version string comparison issue for GNU GCC version in utils.py;
* ENV updated to V1.1.0
* Provide better prompt information to improve user experience;
* Add `system32` path to environment variables to avoid the `cmd` command cannot be found;
* Add `PYTHONHOME` variable to environment variables to avoid PYTHON environment issue;
* Support the configuration of the upward growth stack which is defined by the `ARCH_CPU_STACK_GROWS_UPWARD` macro. Because there are fewer ARCH for stacks growing upward, this configuration item does not display directly in menuconfig. When a CPU ARCH needs stacks growing upward, the configuration of `ARCH_CPU_STACK_GROWS_UPWARD` can be selected by BSP Kconfig file in default.
* Support for ARMCC V6 and later compiler (LLVM-based Compiler); currently it's mainly used in Keil MDK IDE. Please notes that the "Warnings" needs to use `Moderate Warnings` in project configuration in C/C++ (AC6) TAB; After using ARMCC v6, RT-Thread will add an additional `CLANG_ARM` macro definition; (liruncong, nongxiaoming, bernard)
* The `RT_USING_IDLE_HOOK` configuration in Kconfig becomes a separate configuration item, not limited to `RT_USING_HOOK`; (geniusgogo)
## Components
* Improve the PWM driver framework and add more interfaces.
* Fix the F_SETFL handling in ioctrl function; Fix the return value issue of fcntl function which is always 0 value.
* Fix the memheap object type issue when creating a ramfs object.
* Add power management framework for low power applications.
* Add multi-segment support for read and write operations in MC/SDIO driver framework (for stm32, you can choose a separate stm32_sdio package); (weety)
* Add ringblk_buf component for the block mode but in ringbuffer applications;
* Improve WLAN management framework with unified interfaces, management, commands, to provide more friendly support to developers and users;
* Add the conditional macro in the finsh when the MSH component is not enabled, even if the code files are compiled.
* Remove gdbstub and move to rt-thread packages.
* Upgrade and improve SAL and AT components: (linuxhan, eddylin83, slyant, luofanlu, Hubert Xie, Lawlieta, zhaojuntao, armink)
* Fix the none cleared issue when closing socket in SAL, which lead to the socket is always holding.
* Fix the `select()` issue for UDP communication in AT component. Add the receiving data handling to complete the clearing of received event;
* Add the errno value when receive data timeout in at_recvfrom function in the AT component.
* Add the receive data timeout handling in at_client_recv function in the AT component.
* Fix a possible issue in fputc function implementation when using microlib;
* Add gmtime_r implementation for ARMCC, IAR tool chain;
* Improve time function support in IAR and support 64bit time; (hichard)
* DHCPD's support for IPv6;
* Remove lwIP-1.3.2 porting and add lwIP-2.1.0 porting; lwIP-2.0.2 is still the default version.
* Add a lightweight ulog component and automatically replace the debug macro of the original rtdbg.h when it's enable.
* USB stack update
* HOST, optimize the USB HOST timeout mechanism; fix the un-alignment visit issue in F4xx-HAL USB host driver;
* Device: Add the check when class drivers are illegally registered; Fix the un-aligned access issue in some platforms; optimize CDC VCOM classes, add the timeout mechanism and ID definition.
## BSP
* Upgrade the wlan adaptor to the new version of Wi-Fi management framework in amebaz BSP.
* Add airkiss wifi configuration code to amebaz BSP.
* Update Apollo2 BSP with ADC, GPIO, I2C, PDM, SPI, UART and other drivers; (Haleyl)
* BeagleBone BSP is changed to main function mode, and adds Kconfig configuration file.
* DM365 BSP adds Kconfig configuration file;
* Update HiFive1 BSP and add more documentation.
* Update imx6sx BSP to main function mode, and add Kconfig configuration file.
* Change the old imxrt1052-evk BSP. The imxrt1052-related BSPs are classified into the `bsp/imxrt` directory; A touch framework is added to `bsp/imxrt`, and later will be moved into `components/drivers` directory;
* Improve stm32f4xx-HAL BSP with PWM, I2C, USB Host driver; (XuanZe, xuzhuoyi)
* Improve stm32f10x BSP with CAN driver and increase I2C driver; (wuhanstudio, AubrCool)
* Improve stm32f10x-HAL BSP with I2C, IWG, PWM, RTC and other drivers, improve UART driver; (XuanZe)
* Improve x86 BSP, support dlmodule function; (SASANO Takayoshi, parai)
## Tool
* Modify the building script to support Python 3; <Python3patcheshavebeensubmittedtosconsandneedtowaitfornextsconsrelease，maybescons-3.0.2> (Arda)
* Add `scons --pyconfig` mode, which has a TK UI configurator; (weety)
* Support for GNU GCC 7/8 version toolchains (The `-std=c99` is not added into C-compiler flags), but please note: PThreads component failed in 2.5 and new version of newlib.
* The main thread priority can be configured by Kconfig;
* Add the checking of kernel object type, which can effectively avoid the problem of continuing to use kernel objects after they are destroyed.
* Add the idle hook list to mount multiple idle hook, and can be configured by Kconfig.
* Add the device_ops operation set to reduce the footprint of device object.
* Remove the special memory operation in application module when using SLAB memory management algorithm.
* Move application module from the kernel to `libc/libdl`.
* Enhance the debug information output of `rtdbg.h` file.
* In Keil/IAR tool chain, the `RT_USED` is used to keep symbols and avoid to add more argument or section in link phrase.
## Components
* Remove all of external codes, which will be moved to packages in the future.
* Add initialization flag for shell, file system, network protocol stack etc to prevent repeated initialization;
* Enable the long file name feature of ELM FatFs in default.
* Change DFS FD to dynamic allocation mode. The maximum number of allocation is still DFS_FD_MAX.
* Add dfs_fdtable_get() function to get different fdtable;
* Add more DFS error messages, and provide easy to understand log when abnormal.
* Fix the disk format issue of FatFs file system when multiple FatFs file systems are mounted.
* Remove the folder enter feature in msh when input a folder name;
* Add `int finsh_set_prompt (const char * prompt);` routine for setting a custom prompt for msh;
* Add the VBUS configuration in Kconfig.
* Move the application module from kernel to `libc/libdl` component;
* Rewrite most of the management code for application module: replace the original object container with the object list; split the symbol resolution code into different processor architecture etc.
* Update the application module chapter in the programming guide, and change it into dynamic module chapter.
* Overwrite the exit() function of newlib to take over the processing of exit for a dlmodule.
* Add SAL (Socket Abstraction Layer) component for adapting different protocol stacks and network implementations, and update the relevant sections of the programming guide;
* Add AT component, including AT client, AT server and AT Socket function;
* Remove the poll/select API of DFS_NET and move them to SAL component.
* Remove the strong dependence of lwIP component for DFS_NET and replace it with Kconfig configuration in SAL.
* Add the DHCP server function with lwIP raw API;
* Fix the wait queue none-initialization issue in socket allocation of lwIP.
* When a thread is about to block on a wait queue, fix the wake up issue for `rt_wqueue_wakeup' is executed to wake up that thread;
* Add the PWM driver framework;
* Fix the sdio_irq_wakeup release issue in the MMC/SD framework.
* Fix the problem of DMA handling in the serial driver framework.
* Update SFUD to v1.0.6 version;
## BSP
* Fix the SP issue when hard fault occurs for ARM Cortex-M arch;
* Add C-Sky CK802 architecture porting;
* Add Realtek amebaz WiFi SOC (rtl8710bn) BSP;
* Update imxrt1052-evk firmware SDK to support B model chip.
* Fix the copying packets issue in the Godson 1C BSP when sending message.
* The Nuvoton m05x/m451 BSP are changed into the main() entry mode, and supports GCC compilation;
* Fix the inconsistency issue between touch range and LCD resolution in qemu-vexpress-a9.
* Change the location of hook invoking in rt_event_send, which can better reflect the event value to the system view.
* Fix the rt_realloc() issue in memheap;
* Fix the vstart_addr issue in the dynamic library.
* Ensure that signal is more standardized and remove si_errno members from siginfo_t;
* Add rt_thread_mdelay() API for millisecond delay in thread.
## Components
* Fix the DFS mkfs issue of FatFs (which is a merge issue introduced in RT-Thread V3.0 upgrade).
* Fix dfs_net poll issue, if there is already received data, the upper layer can not wake up and deal with data.
* Fix the socket issue in dfs_net if lwip_socket failed(Bluebear233);
* If the dfs_net/socket feature is used within lwIP 1.x version, a compiler error will be returned.
* Fix the DFS df() information issue;
* Fix the audio device write issue while the interrupt is not properly recovered.
* Fix the one-shot timeout issue in the hardware timer driver framework.
* In ENC28J60 driver, the "link change interrupt" is enable in initialization.
* Fix the data issue in put data into ringbuffer.
* Add UDP information display in netstat command;
* Fix the USB HS issue when sending 1 bytes of data will cause two times of transmission.
* Change the registration mechanism of USB Class Driver and Class Driver can be registered in package.
* Add USB Device driver framework for HS USB.
* Enhance the compatibility of time() function for different compilers;
* Add more configuration items for DHCPD in menuconfig.
## BSP
* Temporarily remove the Andes AE210P transplant because of the mistakenly use SVC for context switching.
* Add SD/MMC drive in Allwinner ARM9 BSP;
* Add SPI and SPI Flash drivers to Allwinner ARM9 BSP.
* Add GD32's gd32303e-eval development board support;
* gd32450z-eval supports GNU GCC compilation;
* Rewriting the hifive1 board level support package for the risc-v architecture;
* About i.MX RT1052, we have completed various development board support: ATK, Fire, seeed studio;
* On i.MX RT1052, add the cache-ops functions;
* On i.MX RT1052, add I2S driver and WM8960 codec driver support;
* Improve ETH driver support (including support for Fire development board) on i.MX RT1052.
* Add Hardware Timer driver support on i.MX RT1052.
* On i.MX RT1052, add GPIO driver;
* On i.MX RT1052, add RTC driver;
* On i.MX RT1052, improve SD/MMC driver;
* On i.MX RT1052, add SPI driver and SPI Flash driver (connect to SFUD component);
* Add USB Device driver on i.MX RT1052.
* Add README files and KConfig files in LPC408x BSP;
* Add README documents in LPC5460x-LPCXpresso BSP;
* Add the display controller driver (Sundm75) in Godson 1C BSP.
* Add CAN driver in Loongson 1C BSP(Sundm75);
* In GPIO driver of Loongson 1C BSP, add (external) interrupt feature (Zhuangwei);
* Use SPI automatic initialization in Loongson 1C BSP.
* Add I2C driver in Loongson1C BSP(Sundm75);
* Add resistive touch screen driver in Loongson 1C BSP(Sundm75);
* In Loongson 1C BSP, the components initiliazation and main function is enable(Zhuangwei).
* Add self bootup in Loongson1C BSP (Zhuangwei);
* Add README files and KConfig files to Loongson 1C BSP(Zhuangwei).
* Fix the rx descriptor issue in init_rx_desc function in NUC472 BSP (Bluebear233);
* Add AC97 Audio driver in QEMU-VExpress-A9 BSP;
* Add README description file in QEMU-VExpress-A9;
* Add I2C driver in stm32f4xx-HAL BSP, and README description file;
* Add cache-ops in stm32f7-disco BSP, and README description file;
* Add README description file in stm32f10x/stm32f10x-HAL;
* Add README specification files and KConfig configuration files in stm32f40x BSP;
* Add KConfig configuration file in stm32f20x BSP;
* Add README description file to stm32f411-nucleo BSP and enable GNU GCC tool chain support;
* Add GPIO driver and README description file in stm32f429-apollo BSP;
* Add KConfig configuration files in stm32f429-armfly BSP;
* Add README description file in stm32l476-nucleo BSP;
* Because V2M-MPS2 does not support in 32-bit machine simulation operation, temporarily remove this BSP.
* Add README description file and some firmware file, such as u-boot.bin, wifi firmware etc, in X1000 BSP;
Tools
* Add detection feature for the version of GNU GCC tool chain and libc function feature.
* Add the function of VSCode editor assistance, and support scons --target=vsc -s under BSP folder to generate configuration files for VSCode.
* Add the detection of verson of IAR;
* Add the ProjectInfo (Env) function to get information about target: all source files should be compiled, all header files, all macro definitions, the search paths for header file etc.
* Add scheduler protection when do cleanup for a detached thread;
* Fix the object_find issue when enable module feature;
* Improve POSIX signal support and add rt_signal_wait function and POSIX sigwait interface;
* When enable finsh shell, rtthread.h header file includes the API file of finsh. Therefore, the application code can use command export feature without finsh.h file;
* Improve the comments of rtdbg.h file. In RT-Thread, just use following code to add debug log feature:
* put more IoT components as packages, for example, MQTT, CoAP, HTTP, TLS etc.
# RT-Thread v2.1.0 Change log
This release is the final release for RT-Thread v2.1.0 branch. This release has been delayed many time. After committed fh8620 and x1000 bsp, we are proud to announce this branch release of the official version.
* Does not lock scheduler when invoking soft-timer timeout function.
## Board Support Package:
* fh8620, which is provided by Shanghai Fullhan Microelectronics Co., Ltd. It's a IP camera chip with ARM1176, 300MHz, 16KB I-Cache and 16kB D-Cache.
* x1000 bsp. The CPU is a XBurst CPU 1.0GHz, MIPS-based, from Ingenic Semiconductor Co.,Ltd.
* imx6sx bsp, only the Cortex-A9 core porting in the NXP i.MX6 solox. BTW, another full Kinetis series porting was created in rt-thread_fsl, which is maintained by NXP employee.
* lpc5410x bsp, only the Cortex-M4 core porting.
* ls1cdev bsp for Loogson1C board.
* dm365 bsp.
* nRF51822/nRF52832 bsp.
* stm32f7-disco bsp, the first ARM Cortex-M7 porting in RT-Thread.
* stm32f411-nucleo bsp.
* Add IAR compiler support in beaglebone bsp.
## Components:
* Add more socket fd operators in DFS with a virtual lwIP file system ops.
* Add CAN/Hardware Timer device drivers.
* Fix the SDIO issue to support sdio wifi device.
* Add eMMC support in SD/MMC device drivers;
* Fix the NAT configured enter reset issue in lwIP NAT.
* RTGUI come back, but as a UI engine for blend point/line/rect and bitmap etc.
* Add nanopb porting, a small code-size Protocol Buffers implementation;
* Add paho-mqtt porting, the Eclipse Paho MQTT C/C++ client for Embedded platforms;
* Update freetype to 2.5.4 version.
* Enhance msh for file operations.
* Split the exported commands of finsh shell to a standalone section: ".rodata.name"
