Introduction to Operating Systems | IIT Madras - #14 System Calls for Process Management | Introduction to Operating Systems

Welcome to 'Introduction to Operating Systems' course ! This lecture dives into the implementation of process management system calls in the xv6 operating system. It examines the fork(), exec(), wait(), and exit() system calls, providing a detailed analysis of their implementation details within the xv6 kernel. The lecture explains how fork() allocates a new process structure, duplicates the parent's trapframe, and sets up the child's return value. It also discusses how wait() checks for child processes and sleeps until a child exits. Finally, the lecture delves into the structure of ELF executable files, highlighting the significance of the ELF header, program headers, and section headers in the exec() system call. NPTEL Courses permit certifications that can be used for Course Credits in Indian Universities as per the UGC and AICTE notifications. To understand various certification options for this course, please visit https://nptel.ac.in/courses/106106144 #SystemCalls #xv6 #ProcessManagement #ELF