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[Android-kernel] Android kernel change

What changes does Google make in the kernel?A company compared the standard kernel and Android kernel, and found that Google modified 75 files and added 88 files. The company also annotated these modified and new files. Goldfish -- 44 files Kernel/ARCH/ARM/Mach-goldfishKernel/include/ASM-arm/arch-goldfish The android s

Linux kernel source code compilation and Linux kernel source code compilation

Linux kernel source code compilation and Linux kernel source code compilation Ubuntu14.04 system compilation 3.16.1 Kernel My system is completely new (just installed and updated 20140906)Download the linux-3.16.1 system and unzip it to/usr/src: Mkproper Unable to execute this command, indicating that the related software is missing. Just install it online. Sudo

Add a kernel module in linux and a kernel module in linux

Add a kernel module in linux and a kernel module in linux 1. Introduction to Kernel Modules The Linux kernel has a very large integer structure, and many components are contained in the package. How can I use the components required? Method 1: compile all the components into the ke

Debian 64-bit kernel upgrade procedure (compile the kernel deb package)

Debian64-bit kernel upgrade steps (compile the kernel deb package) apt-getinstallbzip2libncurses5-devkernel-packagezlib1g-devgccmakekernel-packagewgetmodule-init-toolsprocpslibncurses5-devcd/usr/src... Debian 64-bit kernel upgrade procedure (compile the kernel deb package) apt-get install bzip2 libncurses5-dev

Exynos4412 kernel porting (i)--Kernel configuration process Analysis

First, preface 1, the Linux kernel five major functions: Process Management (CPU)Memory Management (memory)Device Management (Driver)Network Management (Network protocol TCP/IP)File System (VFS) 2. Linux version number: Linux 2.6 2---> Major version number 6----> Minor version number: Odd for test version even for stable version This article uses the kernel version of linux3.14 3. Linux directory structur

Linux kernel analysis-booting from Start_kernel to init process using GDB trace debug kernel

Label:Name: Jiang id:fuchen1994 Date of experiment: 2016.3.13 Experimental guidance Open the shell with a virtual machine in the lab building CD linuxkernel/ Qemu-kernel linux-3.18.6/arch/x86/boot/bzimage -initrd rootfs.img After the kernel boot is completed into the menu program ("Software Engineering C Coding Practice" course project), support three commands help, ve

Introduction to the Linux kernel design and implementation Note -1-linux kernel

One, the Linux kernel compared to the traditional Unix kernel comparison:(1): Linux supports dynamic kernel modules. Although the Linux kernel is also a monolithic structure, it allows dynamic removal (rmmod xxx) and loading of kernel modules (Insmod Xxx.ko) when needed.(2):

Kernel those things. Memory management (one)---kernel mapping (top)

The previous three different address spaces are briefly described, followed by a focus on the mapping of the linear address space to the physical address space.Let's start with the 32-bit system first.In a 32-bit system, the size of the linear address space is 2^32, which is 4GB. Kernel generally divides the linear address space into two parts at a rate of 3:1: 0~3GB User address space 3GB~4GB the ker

Outlook 2013 pst/ost Mail data File Migration implementation

When you use Outlook 2013 to create a new email account, its data file (. ost file) is always saved under the C disk default directory "C:\Users\ username \appdata\local\microsoft\outlook", which occupies the space of C disk. When you enter Outlook

Linus discussion on the relationship between kernel header files and kernel source code

Linus discusses the relationship between kernel header files and kernel source code-Linux general technology-Linux programming and kernel information. The following is a detailed description. CODE: From: Linus Torvalds (torvalds@transmeta.com)Date: Thu Jul 27 2000-02:39:51 ESTIn article , Boszormenyi Zoltan

Compile and install Linux kernel 2.6.x, a simple kernel driver test

One of the new installation items is: Download now:Download www.kernel.org, Decompress the package to/usr/src:Bzip2-DC linux-2.6.24.4.tar.bz2 | tar xvf-Rename the folder linux-2.6.24.4 as: Linux-Kernel Under any folder, write a shell file named A. Sh with the following content: #! /Bin/bash Mkdir-P/home/name/build/kernel CD/usr/src/Linux-Kernel Make mrprop

2.6 kernel does not compile the kernel to add modules to iptables

Article title: Kernel 2.6 does not compile the kernel to add modules to iptables. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.    1. install the kernel source code.    [Root @ ji

The kernel module fails to unmount the module by calling kernel_thread to create the kernel thread.

First, let's introduce the general process of creating a thread: In the initialization function of the module, call netlink_kernel_create to register its own netlink protocol, and return the result. The function that receives the netlink message is fcluster_netlink_recv, the actual initialization operation is performed only after the netlink message is received. The thread creation operation is also performed in fcluster_netlink_recv, as shown in: the statement for calling kernel_thread is: [cpp

Linux kernel porting (eight)-porting a Samsung-ported kernel

8.211: Prepare for the transplantGet Samsung ported kernel, create Si project, add to virtual machine, modify makefile Arch and cross_compile modify results as followsARCH = ArmCross_compile =/usr/local/arm/arm-2009q3/bin/arm-none-linux-gnueabi-Then try to configure, (in arch/configs/to find the closest to their own development board, here is the choice of smdkv210_android_defconfig) to get the. config file, and make menuconfig, because there is no mi

Introduction to Linux Kernel Engineering--User space process using kernel resources

This article is mostly reproduced and assembled, just think that these knowledge should be put together better. How process system resources are usedMost processes request memory using GLIBC, but GLIBC is also an application library that ultimately calls the operating system's memory management interface to use memory. In most cases, the glibc is transparent to the user and the operating system, so it is very helpful to observe the process logged by the operating system directly to the memory us

"Linux kernel design and implementation" reading notes (10)-Kernel synchronization method

The kernel provides several ways to prevent competitive conditions, and understanding the usage scenarios of these methods helps us to choose the appropriate synchronization method when writing kernel code.This ensures the security of critical sections in your code, while minimizing the loss of performance.Main content: Atomic operation Spin lock Read/write Spin lock Signal Volume R

Linux Kernel Cutting and root file system customization (1) --- Linux Kernel Cutting

Linux Kernel reduction and root file system customization (1) -------- Linux kernel reductionDirectory: I. kernel Compilation Ii. root file system Customization Iii. kernel options I. kernel Compilation 1. Preparations (1) sort out the hardware, file system types, and net

The eighth day of the 10-day learning Linux kernel---build the Linux kernel

Today is Laba Festival, said the woman ticket to give me to do the Laba porridge is so bad, so sad, good-hearted acid ah, it seems that the code is really annoying drops, so I warned you technical male wake alarm, do not want me to the same, or you can only and the Code as companion ~ ~ said no Laba porridge but there is code, and you have the support of readers , so you have to continue to write down, calm down, complete the Linux kernel learning, ad

Notes Linux kernel Learning (ix) Inside kernel memory management mode

One pageThe kernel takes the physical page as the basic unit of memory management; the Memory Management Unit (MMU) transforms the virtual address into a physicalAddresses, which are typically processed in pages. The MMU manages the tables in the system in the page size unit.32-bit system: Page size 4KB64-bit system: Page size 8KBThe kernel represents each physical page in the system with the corresponding

Linux Kernel learning and compiling Linux kernel notes

For more information, see "learn while doing" by Zhejiang University Press.Chapter 9 Linux kernel compilation experiment objective: to learn how to re-compile the Linux kernel and understand the differences between the Linux standard kernel and the released version. experiment content: compiling the Linux kernel is an

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