121     printk_color(regs->r9, regs->r10, (char *)regs->r8);  in sys_put_string()
137     int fd_num = (int)regs->r8;  in sys_close()
154     int fd_num = (int)regs->r8;  in sys_read()
194     int fd_num = (int)regs->r8;  in sys_write()
232     int fd_num = (int)regs->r8;  in sys_lseek()
274     uint64_t new_brk = PAGE_2M_ALIGN(regs->r8);  in sys_brk()
279     if ((int64_t)regs->r8 == -1)  in sys_brk()
284     if ((int64_t)regs->r8 == -2)  in sys_brk()
313     if ((int64_t)regs->r8 > 0)  in sys_sbrk()
316         uint64_t new_brk = PAGE_2M_ALIGN(retval + regs->r8);  in sys_sbrk()
325 …      if ((__int128_t)current_pcb->mm->brk_end + (__int128_t)regs->r8 < current_pcb->mm->brk_start)  in sys_sbrk()
329     uint64_t new_brk = mm_do_brk(current_pcb->mm->brk_end, (int64_t)regs->r8); // 调整堆内存空间  in sys_sbrk()
369     char *dest_path = (char *)regs->r8;  in sys_chdir()
427     int fd = (int)regs->r8;  in sys_getdents()
458     char *user_path = (char *)regs->r8;  in sys_execve()
499     uint64_t pid = regs->r8;  in sys_wait4()
541     return process_do_exit(regs->r8);  in sys_exit()
546     const struct timespec *rqtp = (const struct timespec *)regs->r8;  in sys_nanosleep()