rt-thread.git/components/lwp/lwp_syscall.c, branch copilot/create-ai-agent-rules

style: format code with clang-format [skip ci]

2026-03-31T02:37:11Z

fix(lwp): validate thread priority in sched syscalls

2026-03-31T02:37:11Z

add RT_THREAD_CTRL_SET_PRIORITY

2025-04-13T07:25:42Z

add RT_THREAD_CTRL_SET_PRIORITY

2025-04-13T07:25:42Z

[lwp]add comments for lwp system calls. (#9934)

2025-02-18T11:51:10Z

[lwp]修正kill(pid < -1)时的返回值错误

2025-02-08T06:32:20Z

feat: add support for dfs remount functionality

2025-01-06T11:34:16Z

This patch introduces a remount feature for the DFS, allowing for the modification of mount parameters without unmounting the filesystem, the remount functionality helps modify certain mount flags (like `MS_RDONLY`) without requiring an unmount, providing more control over mounted filesystems in the system. The updates is essential for user space init proc to cleanup the runtime resource, ensuring clean handling of cached data and enhancing system robustness during power down processing. Changes: - Defined new constants for remount flags in `dfs_fs.h`. - Added the `dfs_remount()` function in `dfs_fs.c` to handle remount operations. - Introduced a check for unsupported flags and handle error conditions such as invalid paths or non-directory targets. - Updated the `dfs_mnt` structure in `dfs_mnt.h` to include a read-only flag (`MNT_RDONLY`). - The `dfs_remount()` function allows changing the read-only status of a mounted filesystem. - Added `MNT_LAZY_UMNT` and `MNT_RDONLY` flags to `dfs_mnt` structure. - Introduced `dfs_mnt_setflags` function for dynamic flag management. - Updated `dfs_remount` to utilize `dfs_mnt_setflags` for flag setting. - Enhanced unmount operations with `dfs_mnt_umount_iter` and lazy unmounting. - Added `dfs_pcache_clean` to handle cache cleanup for read-only mounts. - Improved error reporting in `dfs_umount` for better user feedback. - Refactored `sys_mount` to streamline parameter handling and support remounts. - Introduced `_cp_from_usr_string` helper for user-space string operations. - Updated internal APIs to ensure consistency in reference count management. Signed-off-by: Shell

feat: add system reboot and process teardown support

2025-01-06T11:34:16Z

The patch introduces support for system reboot functionality and process teardown, allowing for a clean shutdown and unmounting of the root filesystem. This is necessary for ensuring a proper system shutdown process, especially when dealing with resource cleanup and ensuring that all processes have exited before system shutdown. Changes: - Added `lwp_teardown()` function to handle process cleanup and system teardown. - Introduced `lwp_pid_wait_for_empty()` to wait for process ID table emptiness before proceeding with shutdown. - Updated `dfs_mnt_unref()` to trigger callbacks when unmounting a filesystem. - Added new reboot types (`RB_AUTOBOOT`, `RB_POWER_OFF`) and implemented their corresponding actions, including cleanup of processes and unmounting root filesystem. - Extended `sys_reboot()` to handle reboot and power off types with appropriate callbacks for process and filesystem teardown. - Introduced callback mechanism for root filesystem unmount notifications. Signed-off-by: Shell

feat: add signal kill all functionality

2025-01-06T11:34:16Z

This change introduces the `lwp_signal_kill_all` function, which allows a signal to be sent to all processes in the system. The function iterates over all PIDs and sends the specified signal to each process, except those that are protected from signals. This enhancement provides a convenient way to broadcast signals across all processes in the system. Changes: - Added `lwp_signal_kill_all` function in `lwp_signal.c` to broadcast a signal to all processes by iterating over all PIDs using the existing `lwp_pid_for_each` function. - Introduced a new `kill_all_param` structure to encapsulate the signal information needed for killing processes. - Added internal `_kill_each` helper function for sending the signal to each PID. - Updated `lwp_signal.h` with the new function prototype for `lwp_signal_kill_all`. - Modified `sys_kill` in `lwp_syscall.c` to call `lwp_signal_kill_all` when a process is not specified. Signed-off-by: Shell

kernel: cleanup debug APIs

2024-12-20T22:50:00Z

- `dbg_log` is a “NOT RECOMMENDED API”, convert the calling of this API to LOG_x and remove this API. - `dbg_here`/`dbg_enter`/`dbg_exit`: no one use these APIs, remove them directly. Signed-off-by: Chen Wang