Thus, the system releases the working storage pages for the data of a process and stack when the process exits.
因此，当进程退出时，系统将释放进程数据和堆栈的工作存储分页。
2
Since you did not call any functions or use any local storage, you did not need a stack frame at all, so you can now just exit through the link register.
由于未调用任何函数，也未使用任何本地存储，所以您根本无需堆栈框架，并可通过链接寄存器退出。
3
In addition to stack space, each thread requires some native memory for thread-local storage and internal data structures.