Linux system calls -- we use them every day.
But do you know how a system call is performed from user-space to the kernel? Explore the Linux system call interface (SCI), learn how to add new system calls and discover utilities related to the SCI.In this article, I explore the Linux SCI, demonstrate adding a system call to the 2.6.20 kernel.
Link source:
http://www.ibm.com/developerworks/linux/library/l-system-calls/index.html?S_TACT=105AGX03&S_CMP=ART
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