GCC安装步骤：
第一步：解压GCC到根目录下
tar -xvzf arm-linux-gcc-4.3.2.tgz -C /
第二步：打开profile文件
vi /etc/profile
第三步：修改profile，找到以下
# Path manipulation
if [ "$EUID" = "0" ]; then
pathmunge /sbin
pathmunge /usr/sbin
pathmunge /usr/local/sbin
fi
在if 和fi中添加如下
pathnunge /usr/local/arm/4.3.2/bin
即修改成以下：
# Path manipulation
if [ "$EUID" = "0" ]; then
pathmunge /usr/local/arm/4.3.2/bin
pathmunge /sbin
pathmunge /usr/sbin
pathmunge /usr/local/sbin
fi
第四步：修改后保存文件，即输入 “ :wq ”回车就可以了。
第五步：更新环境变量
source /etc/profile
第六步：查看是否安装成功
arm-linux-gcc -v
若有以下信息说明安装成功了：
Using built-in specs.
Target: arm-none-linux-gnueabi
Configured with: /scratch/julian/lite-respin/linux/src/gcc-4.3/configure –build=i686-pc-linux-gnu –host=i686
-pc-linux-gnu –target=arm-none-linux-gnueabi –enable-threads –disable-libmudflap –disable-libssp –disable
-libstdcxx-pch –with-gnu-as –with-gnu-ld –enable-languages=c,c++ –enable-shared –enable-symvers=gnu —
enable-__cxa_atexit –with-pkgversion='Sourcery G++ Lite 2008q3-72' –with-
bugurl=https://support.codesourcery.com/GNUToolchain/ –disable-nls –prefix=/opt/codesourcery –with-
sysroot=/opt/codesourcery/arm-none-linux-gnueabi/libc –with-build-sysroot=/scratch/julian/lite-
respin/linux/install/arm-none-linux-gnueabi/libc –with-gmp=/scratch/julian/lite-respin/linux/obj/host-libs-
2008q3-72-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr –with-mpfr=/scratch/julian/lite-respin/linux/obj/host-
libs-2008q3-72-arm-none-linux-gnueabi-i686-pc-linux-gnu/usr –disable-libgomp –enable-poison-system-
directories –with-build-time-tools=/scratch/julian/lite-respin/linux/install/arm-none-linux-gnueabi/bin —
with-build-time-tools=/scratch/julian/lite-respin/linux/install/arm-none-linux-gnueabi/bin
Thread model: posix
gcc version 4.3.2 Sourcery G++ Lite 2008q3-72)