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文件描述符(File Descriptor) a small, nonnegative integer for use in subsequent system calls (read(2), write(2), lseek(2), fcntl(2), etc.) ($man 2 open). 一个 阅读全文
摘要:
MMU MMU=Segmentation Unit+Paging Unit //MMU: Memory Management Unit logical address = Segmentation Unit= linear address = Paging Unit= physical addres 阅读全文
摘要:
||| |: |: | | 高地址 |命令行参数信息,环境表信息| |:|栈Stack for thread 0:一个线程一个私有栈 |:|栈里的栈帧Stack Frame 0:一个函数里的局部变量一个栈帧 |:|栈里的栈帧Stack Frame 1:设这个是fcn(),依次将BACD压入栈 |:| 阅读全文