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Using Kernel Customization Tools

Dec 23, 2008, 20:31 (0 Talkback[s])
(Other stories by M. Tim Jones)

"Linux is a monolithic kernel, which means that the kernel runs in the supervisory mode of the processor. The kernel implements the basic interfaces to the hardware and presents APIs to user-space (and kernel) applications that require access to it. This is in contrast to micro-kernel architecture, which implements only basic services in the kernel, and pushes higher-level services outside of the kernel core. One of the primary advantages to micro-kernels is that they are eminently extensible. Since most services are implemented outside of the kernel proper, it's easy to start and stop services based upon their need.

"Fortunately, while Linux is a monolithic kernel, it does provide the means for dynamic extension through the use of kernel modules. Kernel modules are special objects that can be inserted into the kernel, as well as removed, dynamically. Upon insertion, they extend services to the kernel as well as use services (through a process known as dynamic binding)."

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