linux kernel support

Preface In the last few months, I have made a rough research on Linux kernel. Next I need to perform in-depth and detailed analysis. It mainly uses a Development Board of S3C2440 as the hardware entity. It includes the following content: 1 bootloader analysis, mainly uboot, combined with the specific situation of the Development Board. My goal is to explain how uboot works (to be honest, I don't want to be

Article Title: Use kgdb to debug Linux kernel and kernel modules. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded sys

command ensures that there is no incorrect. o file in the source code directory)# Make menuconfig configure kernel options) In this case, a graphical interface is displayed, listing all Linux kernel system configuration options. Some options also have sub-options. You can select them using the arrow keys and use the Y key to confirm them. After many tests, most

20135311 Fu DongAnalyzing the process of creating a new process in the Linux kernel learning contentProcess Control block--PCB TASK_STRUCT data structureThe PCB task_struct contains:进程状态、进程打开的文件、进程优先级信息操作系统管理的三个功能：1.进程管理 2.内存管理 3.文件系统Status of the Linux process:Process State Analysis:The long state is the running status of the process, 1 is not executed, 0 is in

(lkp_cleanup); - +Module_license ("GPL");A simple analysis:Line 1th: Linux/module.h is a necessary header file that must be included in the kernel module code.Line 2nd: linux/kernel.h contains common kernel functions.Line 3rd: linux/init.h contains macros _init and _exit,

Kernel synchronizationSynchronous introductionThe concept of synchronizationCritical section: Also known as a critical segment, is the code snippet that accesses and operates shared data.Competition conditions: 2 or more than 2 threads are executed simultaneously in the critical section, which constitutes a competitive condition.The so-called synchronization, in fact, prevent the formation of competitive conditions in the critical area.If the critical

Mod_name Loading ModuleModprobe-r mod_name Unload ModuleModprobe-r FloppyModprobe FloppyModinfo: View specific information about the moduleModinfo Mod_nameModinfo FloppyInsmod/path/to/module_file: Load ModuleRmmod Mod_name removing modulesDepmod/path/to/modiles_dirInstall the driver: Download the source code, compile into KO, load the moduleKernel and kernel modules must be fully consistent2.6.32-1 kernel

I have never thought of any good way to pass parameters to the kernel through registers until now the implementation of uboot reading. In uboot, the most common method to boot the kernel is the bootm command. The bootm command can boot the "uboot format" kernel. Let's take a moment to know what the kernel is in uboot

Description of the processThe three main management functions of the operating system: process management, memory management, file systemTo manage the process, the kernel must have a clear description of each process, and the process descriptor provides the process information that the kernel needs to understand.Process Control block PCB task_struct: Process status, Process-open files, process priority info

Release date:Updated on: Affected Systems:Linux kernel Description:--------------------------------------------------------------------------------Bugtraq id: 67302CVE (CAN) ID: CVE-2014-1738Linux Kernel is the Kernel of the Linux operating system.Drivers/block/floppy versions earlier than