Upon encountering a parameter that it does not understand, the Linux kernel saves the parameter. The kernel later passes the parameter to init when performing the user space start. For example, if you add -s to the kernel parameters, the kernel passes the -s to the init program to indicate...
Upon encountering a parameter that it does not understand, the Linux kernel saves the parameter. The kernel later passes the parameter to init when performing the user space start. For example, if you add -s to the kernel parameters, the kernel passes the -s to the init program to indicate...
It’s important to understand the structure of a network stack because your data must travel through these layers at least twice before it reaches a program at its destination. For example, if you’re sending data from Host A to Host B, as shown in Figure 9-1, your bytes leave the app...
在Linux的历史中,内核向用户展示设备的方式经历了许多变化。 我们将看一下传统的设备文件系统,了解内核如何通过sysfs提供设备配置信息。 我们的目标是能够提取系统上设备的信息,以便理解一些基本操作。 后面的章节将更详细地介绍与特定类型设备的交互。 It’s important to understand how the kernel interacts with user...
The Linux kernel is now so vast that none of us can possibly know every corner of it (not even Linus Torvalds himself). If I have to learn a new subsystem, I enable ftrace, perform some work, and then analyze the tracing data to understand how that subsystem works. I wish I had ...
difficult to understand the assumptions the kernel has on the toolchain and the extensions that it uses, and unfortunately there is no definitive reference for them. Please check the gcc info pages (`info gcc`) for some information on them. ...
Understand the design of the Linux Kernel Understanding the Linux Kernel Read this book and the kernel source v2.6 at the same time Never start with the latest version, v2.6 is enough! Use qemu and gdb to run the kernel source line by line ...
1.1 Levels and Layers of Abstraction in a Linux System(Linux 系统中的抽象层级) Using abstraction to split computing systems into components makes things easier to understand, but it doesn’t work without organization. We arrange components into layers or levels. A layer or level is a classificati...
How to: Compile Linux kernel 2.6 Compiling custom kernel has its own advantages and disadvantages. However, new Linux user / admin find it difficult to compile Linux kernel. Compiling kernel needs to understand few things and then just type couple of commands. This step by step howto covers ...
Finding your way around a Linux filesystem can be confusing if you are unfamiliar with the operating system. However, to get anything useful done, it is nec…