There is a great deal more information about how sycalls are implemented on Linux in this excellent free GitHub book called linux-insides: https://github.com/0

There is a great deal more information about how sycalls are implemented on Linux in this excellent free GitHub book called linux-insides: https://github.com/0xAX/linux-insides/tree/master/SysCall https://github.com/0xAX/linux-insides/tree/master/SysCall I can highly recommend it to anyone who wants to learn more about the kernel. This book is particularly great because it does not assume any kernel programming background knowledge - superficial understanding of C should be enough.