Linux

Calls to cpu_relex will be executed in a system-related manner. In many systems, it does not do anything at all. This method should be explicitly avoided. For the arm system: # Define cpu_relax () barrier ()  That is to say, running a busy wait

I can see an Intel strong article about meego on the Internet, which is very useful. A good article is better than a meal. I will share it with you here. I have been learning since the release of meego in March. Now I want to share some of the

Recently, I suddenly wanted to write a cross-platform project and found that the first cross-platform library to be called was solved. So I studied the problem of libraries on two platforms. This article describes how to create a static link library

Port Environment (Bold font in redIs the modified content,Blue bold ChineseFor special attention) 1. host environment: centos 5.5 and 1 GB memory in vmare. 2. Integrated Development Environment: Elipse ide 3. compiling environment: Arm-Linux-GCC v4.4

The inux system startup process consists of many steps.Using a standard x86 desktop computer or an Embedded PowerPC target board, most of the processes are surprisingly similar. This article explores Linux from initial preparation to usersThe

Use a command to create a directory tree~ $ Mkdir-P tmp/A/B/C   Use a command to define a complex directory tree~ $ Mkdir-P project/{lib/EXT, bin, SRC, DOC/{HTML, info, PDF}, demo/STAT/}   Use Option-C to decompress the. tar archive file to the

All kernel code basically includes include/Linux/compile. h this file, so it is the foundation, covering some of the column compilation knowledge required by the analysis kernel, this blog will analyze the code in this file: # Ifndef _

During encoding and conversion on Linux, you can use both the iconv function family programming and the iconv command, but the latter is for files, converts a specified file from one encoding to another.I. Use the iconv function family for encoding

Turn: http://hi.baidu.com/geyangshun/blog/item/8e397f1e3840c9f21ad57639.html 4. Put () functionPut () is used to write values from the user space. If the value is changed, the function returns 1; otherwise, 0; if an error occurs, the function

When using Linux, you will find a very strange problem: after using the TOP command for a period of time (especially after file copying and other operations), you will find that the memory is basically occupied, in addition, Linux will not be

Recently, the boss asked me to introduce the experience of BSP development at the weekly meeting.Because there are foreigners in the group, they must also speak English.It's a great opportunity to practice English.It is expected to be an hour and a

The author's blog address: http://blog.sina.com.cn/samzhen1977 By Sam (zhufeng) sam_code@hotmail.com   Service DiscoveryProtocol (SDP) provides a capability for applications to discover which service is available and the features of this

The/dev/MEM driver provided in the Linux Kernel provides a channel for us to read and write the physical address of the memory. The following describes two methods to read and write physical addresses Using Mem Device Files: one is a device driver

Use DDD + GDB to develop ARM Linux programsToday, we have made some progress. Please write it down to avoid forgetting it.Since Linux runs on my board, I have been thinking about how to debug future programs. In fact, I am really a layman in Linux

I have seen a lot of problems on the Internet.LinuxI will not repeat these articles in terms of optimization. I just want to talk about these issues from my own experiences. As a system administratorServerLinux is an application. Because Linux on a

Computers on the network can be easily scanned by hackers using tools or other means to find vulnerabilities in the system and then attack the vulnerabilities. DisguiseLinuxSystem. Setting system illusion for hackers can increase the difficulty of

60 required commands for Linux: system security commands System security commands required for Linux (1) Author: Cao yuan, his posting date: 2004.12.03 Although Linux is a multi-user system like Windows NT/2000, there are many important differences

In fact, string operations are not part of programming in Linux. However, because programming in Linux is basically the programming of C language function libraries, it is essential to understand strings. Strcasecmp Function prototype: int

A system call is a functional interface between an application and the operating system kernel. The main purpose is to make the userYou can use the relevant device management, input/input systems, file systems and process control provided by the

Introduction to signal programming in Linux-Unreliable Signals(Author: mikespook | Release Date: | views: 135) Keywords: Linux, signal, signal ()Preface:This article is only intended to provide guidance to many cainiao like me. If you are a master