Ubuntu 16.04上安装arm-linux-gcc-4.4.3
一、首先下载arm-linux-gcc-4.4.3.tar.gz安装包,安装包地址:
http://www.linuxidc.com/Linux/2011-05/35906.htm
二、解压安装包:
sudo tar -zxvf arm-linux-gcc-4.4.3.tar.gz -C /
注意C后面有一个空格,这样解压完成后的文件在:/opt/FriendlyARM/toolschain/4.4.3路径下
三、在/usr/local目录下新建arm目录,并拷贝/opt/FriendlyARM/toolschain/路径下的4.4.3到arm目录:
cd /usr/local
sudo mkdir arm
sudo chmod 777 arm
sudo cp -r /opt/FriendlyARM/toolschain/4.4.3 /usr/local/arm
四、修改环境变量,把arm-linux-gcc添加到PATH中:
方法一:修改/etc/bash.bashrc文件,此文件只对当前用户适用
sudo gedit /etc/bash.bashrc
在最后加上export PATH=$PATH:/usr/local/arm/4.4.3/bin
保存,退出,然后刷新环境变量使其生效:
source /root/.bashrc
方法二:修改/etc/profile文件,此文件对所有用户适用
sudo gedit /etc/profile
在最后加上export PATH=$PATH:/usr/local/arm/4.4.3/bin
保存,退出,然后刷新环境变量使其生效:
source /etc/profile
方法三:修改/etc/environment文件
sudo gedit /etc/environment
在最后加上:/usr/local/arm/4.4.3/bin
保存,退出,然后重启系统
五、检查环境变量添加是否正确:
echo $PATH
如果可以显示/usr/local/arm/4.4.3/bin,那么环境变量添加成功
六、检查arm-linux-gcc是否安装正确:
arm-linux-gcc -v
Using built-in specs.
Target: arm-none-linux-gnueabi
Configured with: /opt/FriendlyARM/mini2440/build-toolschain/working/src/gcc-4.4.3/configure –build=i386-build_RedHat-linux-gnu –host=i386-build_redhat-linux-gnu –target=arm-none-linux-gnueabi –prefix=/opt/FriendlyARM/toolschain/4.4.3 –with-sysroot=/opt/FriendlyARM/toolschain/4.4.3/arm-none-linux-gnueabi//sys-root –enable-languages=c,c++ –disable-multilib –with-arch=armv4t –with-cpu=arm920t –with-tune=arm920t –with-float=soft –with-pkgversion=ctng-1.6.1 –disable-sjlj-exceptions –enable-__cxa_atexit –with-gmp=/opt/FriendlyARM/toolschain/4.4.3 –with-mpfr=/opt/FriendlyARM/toolschain/4.4.3 –with-ppl=/opt/FriendlyARM/toolschain/4.4.3 –with-cloog=/opt/FriendlyARM/toolschain/4.4.3 –with-mpc=/opt/FriendlyARM/toolschain/4.4.3 –with-local-prefix=/opt/FriendlyARM/toolschain/4.4.3/arm-none-linux-gnueabi//sys-root –disable-nls –enable-threads=posix –enable-symvers=gnu –enable-c99 –enable-long-long –enable-target-optspace
Thread model: posix
gcc version 4.4.3 (ctng-1.6.1)
显示已经安装成功。
七、编写测试程序,用arm-linux-gcc编译:
建立一个空文档,编写以下代码,并保存为test.c:
#include <stdio.h>
void main(void)
{
printf(“%s”,”Hello World!\n”);
}
输入以下命令:
arm-linux-gcc -o Hello test.c
编译完成后会生成Hello可执行文件,输入以下命令可以查看生成的文件信息:
readelf -h Hello
ELF Header:
Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2’s complement, little endian
Version: 1 (current)
OS/ABI: UNIX – System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: ARM
Version: 0x1
Entry point address: 0x8334
Start of program headers: 52 (bytes into file)
Start of section headers: 4464 (bytes into file)
Flags: 0x5000002, Version5 EABI, <unknown>
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 10
Size of section headers: 40 (bytes)
Number of section headers: 30
Section header string table index: 27
可以看到可执行文件的平台为ARM平台。
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