Minix新增系统调用的设计与实现

Design and Implementation of New Minix System Calls

在分析和研究 Minix操作系统时 ,发现必须增加新的系统调用 .本文首先介绍了增加系统调用的必要性 ,接着分析比较了在基于微内核设计的 Minix操作系统上增加系统调用的各种可能方案 .在此基础上 ,详细描述了中断方案的设计与实现 .

This paper introduces the necessities of adding new system calls on Minix operating system. On the base of analyzing and comparing all possible plans, we select the interrupting plan and give its detailed design and implementation. To demonstrate the utility of new system calls, we present the results of measuring getpid and time system calls and study reasonality of their implementation.