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directive invokes the system routine of the operating system number bit 02The way Linux 2.6.16 is used later:The 24-bit immediate number in the instruction is ignored, the service type requested by the user is determined by the value of the register R7, and the parameters are passed through the other general registers. For example:MOV R7, #12SWI 0Each system call has a unique system call function number Alps\kernel\arch\arm\include\asm\unistd.hSystem

three-tier switch was to be purchased to enable VLAN interoperability, the previous two-tier device would be discarded. This has resulted in a great deal of waste. So is there any way to achieve the function of three-layer switch on the basis of still using two-layer equipment? The principle of the one or three-layer switch: Before we tell you how to solve the problem, we need to first understand how the three-tier switch works. In theory, a three-layer switch can be regarded as a two-layer swi

Tags: style http color io os using ar strong fileDevelopment environment: AT91SAM9X25 Development Board: Install linux2.6.39; PC Virtual machine: Linux version 2.6.18-194.el5 (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)), ARM-LINUX-GCC version 4.4.3 First, download GBD http://ftp.gnu.org/gnu/gdb/, I downloaded the gdb-6.8. Second, installation (1) Decompression: Tar zxvf gdb-6.8a.tar.gz (2) Configure the installation GDB: CD gdb-6.8 ./configure--tar

In the previous article, how to compile, run Arm-linux-gdb and Gdbserver, this article describes how to combine ECLIPSE-CDT for graphical compilation debuggingThe first thing to do is to create the project with the CDT and add the source files. On the left side of Project Explorer, right-click->properties Enter project property settings Select C/C + + build->settings in tool Settings, change toolchain to

Believe it or not, just grab a man and ask him if he knows the CPU, I think his answer will be sure, but if you ask him again do you know the structure of arm and X86? What is the difference between the two? The vast majority of people must be a face. Today's small make up to take you in-depth understanding of the CPU of these two major architectures: arm and X86. Go out and put X on it!# # Relive what the

Compiler version arm-linux-gcc4.3.3Host Red Hat 4Before compiling mplayer-1.0rc2.tar.bz2Need Mr. Cheng MP3 library, the first to compile these 3 source packagesLibid3tag-0.15.1b.tarLibmad-0.15.1b.tarZlib-1.2.3.tar1. Compiling Zlib-1.2.3.tarTar xvzf Zlib-1.2.3.tarCD zlib-1.2.3Configuration./configure--prefix=/usr/local/madplayModify makefile Specify Cross compilerVI Makefilecc=arm-linux-gccAr=

http://blog.chinaunix.net/uid-26119896-id-3302233.htmlTo Install the cross-compilation toolchain:1, first log in as root user2, copy arm-linux-gcc-4.3.2.tgz to the root directory in the TMP folder3. Unzip the command tar xvzf arm-linux-gcc-4.3.2-c/Note that the above command must have a-C and uppercase, there is a space behind to note. 4, the configuration under the compiler environment path in the console

This article as the old technical person to National Day (2014.10.01) of the tribute, limited open, belong to the studio 5 A-level confidential documents, do not provide technical advice:Nginx ("Engine X") as the world's third largest Web server, if it can be applied to embedded systems in the application of what a wonderful thing, the following will tell you the possibility of implementation (by verifying) the minimum hardware configuration (300Mhz ARM9,128MB memory).1. Cross-compiling the PCRE

Download the source code of GDB 7.3.1 from http://www.gnu.org/software/gdb. Copy to Linux virtual machine, decompress to gdb-7.3.1 directory, enter this directory [Root @ localhost gdb-7.3.1] #./configure -- Host = arm-Linux -- target = arm-Linux Bytes ------------------------------------------------------------------------------------- Make has the following error prompt: Checking for library containing wa

arm-linux Cross Compiler productionThis article introduces the use of Crosstool-ng tools to make Arm-linu cross compiler, about crosstool-ng not to speak more (can Baidu), the following to s5pv210 processor as an example of the production process. I. Installation of Crosstool-ng 1. Get Crosstool-ngGet crosstool-ng,http://crosstool-ng.org/from official website, here I choose CROSSTOOL-NG-1.22.0.TAR.BZ2 vers

（如Ubuntu）创建工作目录cd sqlite3 #进入工作目录中cp /media/sda1/sqlite-autoconf-3080500.tar.gz ./ #复制SQLite源码到主机tar zxvf sqlite-autoconf-3080500.tar.gz #解压cd sqlite-autoconf-3080500 #进入解压后的目录 3. Configure compilation Options 123 mkdir../install #创建安装目录export PATH=$PATH:/usr/local/arm-2010q1/bin #交叉编译工具路径加入系统环境变量./configure--host=arm-none-linux-gnueabi --prefix=/h

. This is actually tslib.14. I don't know why it became 1.0. It's not very difficult to compile and how to configure it, please read another document, "tslib of arm-Linux". Of course, this document may not help you. You need to use your talents, you may need to read the source code of the touch screen driver in the kernel. In my Development Kit, the touch-screen controller uses the active converter of the CPU itself, and the driver in the kernel is co

Installing the cross-compiler (ARM-LINUX-GCC) and the Integrated development environment (eclipse) 1. Install ARM-LINUX-GCC, whether you are downloading from the Internet, or the development of the CD inside, can be, the version is not limited, my is arm-linux-gcc-4.3.2. Enter ARM-LINUX-GCC installation package direc

Directory structureE2fsprogs:/root/ARM-QT/e2fsprogsJpeg-6b:/root/ARM-QT/jpeg-6bQt-2.3.10:/root/ARM-QT/qt-2.3.10Qt-2.3.2:/root/ARM-QT/qt-2.3.2 // PC version QT, not usedQtopia-free-2.1.1:/root/ARM-QT/qtopia-free-2.1.1Qt-x11-free-3.3.8:/root/

With the growing number of mobile device platforms, and even the momentum to replace the desktop platform, the word "arm" is increasingly appearing in people's eyes, especially on mobile phones or tablet processors, but never see arm's processor, but "the adoption of ARM's latest architecture" processor. In fact, ARM (adanced RISC machines) is not only a generic term for a processor, but also a company name

Step by step, create a crosstoolchain based on ARM + Linux-Linux general technology-Linux programming and kernel information. The following is a detailed description. Disclaimer: This article is based on the reference of online materials, and is based on Liang yuanen's "How to Build a cross-compiling environment for Embedded Development. I have explained in detail the problems I encountered during the establishment process. This article will be update

Recently, using BusyBox to customize a very simple root filesystem for arm-based boards, because BusyBox only supports telnet and does not support SSH, this article describes in detail how to cross-compile dropbear and port it to a target board to enable Dropbear.Target Environment:Cpu:armKernel version: 4. XTool Download:　　　　zlib-1.2.8　　　　dropbear-2016.74.tar.bz2First step: Compiling zlib-1.2.8Download zlib-1.2.8.tar.gz, the author put it in the/home

In the ASM version or Classic mode prior to Azure, users can achieve some degree of automatic scaling (auto scaling) with PAAs services such as the Azure Website,azure Cloud service, but with many limitations and drawbacks, For example, it can only be used on PAAs platforms, with extended periods, inability to support custom images, inability to support Linux, and so on, so is there a service on Azure that gives our enhanced PAAs the ability to expand automatically, At the same time allowing use

Porting the script to the kernel is a cool thing, Lua has been ported to the kernel of NetBSD, there is a project called Lunatik to the Linux kernel, but only to support x86, not support arm, search on the internet, did not find ready, so I researched the next, Now share it.Ported to arm platform, mainly to re-implement SETJMP and longjmp two functions, the online related information is very few, finally fo

The basic steps are as follows:(1) Create a directory$ sudo mkdir/usr/local/arm(2) Copying filesFile arm-linux-gcc-4.4.3.tar.gz, put in/var/ftp, enter ftp,$ CD ~/ftp,Copy,$ sudo cp arm-linux-gcc-4.4.3.tar.gz/usr/local/arm(3) Unzip the fileGo to directory: $ cd/usr/local/armUnzip:$ sudo tar-xzvf