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A preliminary understanding of Linux kernel source code-Linux general technology-Linux programming and kernel information. The following is a detailed description. Many people are familiar with linux, an open-kernel source-
2. create a directory for storing Android source code and initialize the version. Sudo chmod a + x repo Cd .. Mkdir source Cd source ../Bin/repo init-u https://android.googlesource.com/platform/manifest To download the branch of android4.0, run the following command: ../Bin/repo init-u https://android.googleso
Article Title: Watch the Linux kernel source code to train essential internal force skills. 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
Each directory of the Linux kernel source code tree contains two documents: kconfig and makefile. The kconfig distributed to each directory constitutes a distributed Kernel configuration database. Each kconfig describes the Kernel configuration menus related to the
)//name_user is the name of the module, Size is the module structure size plus the mirror size of the one-way connection is completed {char *name;long namelen, error;struct module *mod;if (!capable (Cap_sys_module)) Return-eperm;lock_kernel (); if ((Namelen = Get_mod_name (Name_user, name)) Finally, let's seeInit_module, the module image that completes the one-way connection in the user space is loaded into the kernel space, and a function called Init
Start to read the Linux kernel source code-general Linux technology-Linux programming and kernel information. The following is a detailed description. The Linux kernel source code analy
source fighter. Neil Brown's blog address is http://blog.neil.brown.name/, this site is very important, because I found that when I encountered a difficult problem, 80% of questions can be found here, so the time to sweep from head to tail, can solve a lot of " The question of why to do so. " At first I looked at the kernel code from Module_init began to see, b
first case, in the Linux kernel source scenario analysis-interrupt upper half of the article, the Do_timer Interrupt service program, called the Update_process_times, the code is as follows:void update_process_times (int user_tick) {struct Task_struct *p = current;int CPU = smp_processor_id (), System = User_tick ^ 1;update_one_process (p, User_tick, System, CPU
In previous articles, I introduced some problems encountered in the configuration process, including "how to download the android source code for Ubuntu Linux", "how to configure the Eclipse development environment for android under Ubuntu11.10, and Ubuntu11.10 android source code 4.0.3 compilation method. This article
Centos 7.1 get kernel source code In centos 7.1, the default kernel source code path is/usr/src/uname -rBut it does not contain the source code
Many people are familiar with Linux, an open-kernel source-code OS, so open-source topics will not be described here. The problem is, after obtaining the Linux kernel source (I don't know where it is, let's take a look at http://w
kernel provides the present macro. #define get_current() (current_thread_info()->task) #define current get_current()The kernel also needs to store the PCB information for each process, and the Linux kernel supports different architectures, but different architectures may need to store information differently.This requires us to implement a common approach,
Many articles on the Internet, all of which he wrote are transferred and used in each article. Simply sort out an article by yourself. There are many good people on the Internet, but there are more white issues. What's more, we are not getting started with this number. Because we have recently learned the kernel and want to write modules, the modules should be compiled and installed under the source
[Date: 2009-11-29] Author: Zhang Cheng Each directory of the Linux kernel source code tree contains two documents: kconfig and makefile. The kconfig distributed to each directory constitutes a distributed Kernel configuration database. Each kconfig describes the Kernel
intret;5 structsockaddr_nl SNL;6 intsock;7 intNamelen;8 intSave_errno;9 Ten if(Zserv_privs.change (zprivs_raise)) { OneZlog (NULL, Log_err,"Can ' t raise privileges"); A return-1; - } - theSock =Vrf_socket (Af_netlink, Sock_raw, Netlink_route, vrf_id); - if(Sock 0) { -Zlog (NULL, Log_err,"Can ' t open%s socket:%s", nl->name, - Safe_strerror (errno)); + return-1; - } + Amemset (AMP;SNL,0,sizeofSNL); atsnl.nl_family =Af_netlink; -Snl.nl_groups
relationship between threads running in Kernel Status calls. Q2: What is the difference between createthread and _ beginthread? Why do people often say that using createthread may cause memory leakage? A: From the Perspective of purpose, they all aim to create a thread, but the details are different: the former is the system API, this means that it is not bound to the C Library and other libraries normally used by the program. The latter is the C R
[TOC]1. IntroductionThe content of this article is based on Linux Kernel 2.6 source code, in-depth analysis of its process model, the main analysis of the following: What is a process (the concept of a process) How the operating system organizes processes How the process state is converted How the process is scheduled Views on the operati
First, IntroductionThis article is based on the Linux Kernel Version 4.13.0-36-generic Source code, to carry out in-depth analysis of its process model, specifically contains the following:1. How the operating system organizes processes2. How process status is converted3. How the process is scheduled4. Your own view of the operating system process model(Note:The
There are several pages of user space:1. Normal User space page, including the process code snippet, data segment, stack segment, and dynamically allocated "storage heap".2. The contents of the open file mapped to the user space through the system call MMAP ().3, the shared memory area between processes.The turnover of these pages has two meanings.1, the allocation of pages, use, recycling. such as process pressure stack of the newly requested page, t
Arch: kernel source code that contains a specific architecture Include: contains most of the files required to compile the kernel source code. Init: initialization of the contained Kernel
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