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Changelog

rt-thread

RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/

RT-Thread/rt-thread

Drivers
- core: Adapt and optimize new device driver model; Fix issue where some device drivers could not enter the probe function after registration
- usb: rt_size_t follows UNIX style, changed to rt_ssize_t
- virtio: qemu-virt64-aarch64 / qemu-virt64-riscv support SDL2
- i2c: Add generic software simulation I2C; Add device tree support
- spi: Fix qspi configuration not taking effect issue
- sdio: Add rt_mmcsd_fops_flush(block_dev) function
- rtc: Fix rt_soft_rtc_sync function warning issue caused by using deprecated declaration method
- clk: Add clk driver framework, preparing for full use of device tree
- pwm: Add console secondary command completion feature
- can: Optimize can close order (#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
  - Support O_DIRECT and O_SYNC flags
  - Fix dfs_dentry_lookup resolving file path issue
  - Fix dfs_tmpfs_write error; Fix dfs_v2 dfs_romfs_getdents buffer overflow issue
  - Fix potential heap buffer overflow issue in dfs_v2 dfs_file
  - Fix transfer fd under dfs_v2, dentry or vnode not existing issue; Fix lwp_free timer recovery call issue
  - Fix permissions issue in elm; Fix page cache issue; Fix unmounted mqueue issue
  - Add dfs pwrite pread (#8672); Add ptyfs support (#8672)
  - Add symbolic link, regular file management and other features (#8672)
  - Add sys_utimensat function; Add cromfs symbolic link (#8132)
  - Add cromfs mmap support (#8218)
Libc
- Fix difftime function multiple definitions issue in MDK compilation environment
- Fix data race issue in shared counter ID list; Fix compatibility issue of ctime.c file with old drivers
- Fix macro redefinition issue in eventfd due to toolchain update
- Fix logic error in posix thread local storage search for posix thread handle
- Fix issue of adding legacy macros when unable to get IAR version
- Improve gcc picolibc; Further optimize epoll and timerfd
- Add RT_USING_INTERNAL_LIBC_ONLY macro; Add GCC generic atomic operation functionality (#8648)
LWP
- Add sys_setitimer function
- Replace lwp_new function with lwp_create; Replace irq disable/enable code in futex; Replace off_t with size_t in lwp_syscall.c
- Fix CPU affinity setting issue; Fix rt_channel internal lock issue; Fix pid recycling issue; Fix init process signal protection flag setting (#8797)
- Enable automatic selection of LDSO and pcache options by default after enabling smart/lwp options
- Update AF_UNIX bind and connect entry, update AF_UNIX data structure sockaddr_un to standard structure
MM
- Add reserved memory support; Add rt_aspace_mremap_range function implementation
- Fix issue of using released memory in aspace_traversal; Fix issue of page_install function on shadow region
Net
- Fix wifi scan command duplication issue (#8666)
- at: Optimize at formatting output to avoid conflicts between multiple at client and server outputs; Optimize AT component, and fix potential memory leak issue
- lwip: Fix possible deadlock issue under SMP
- sal: Add ifconfig updown function; Add message quantity limit; Update SAL socket abstraction layer, improve socketpair, sendmsg, recvmsg functionality
Finsh
- Optimize list_thread display; Optimize MSH macro definition
- Add finsh thread stack size check; Add finsh thread entry hook function
FAL
- 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