/**********************************************************************************

 *                      Ubuntu 安装arm-linux-gcc编译器

 * 说明：

 *     Ubuntu下直接安装arm-linux-gcc编译器，省得去配置那些环境。

 *

 *                                           2017-3-21 深圳 南山平山村 曾剑锋

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一、参考文档：

    Install the ARM cross compiler toolchain on your Linux Ubuntu PC

        https://www.acmesystems.it/arm9_toolchain

二、查找支持armhf的软件包名：

    zengjf@zengjf:~/zengjf/zengjfos/busybox/busybox-1.26.$ sudo apt-cache search arm | grep gcc | grep armhf

    gcc-arm-linux-gnueabihf - GNU C compiler for the armhf architecture

    libgcc--dev-armhf-cross - GCC support library (development files)

    libgcc1-armhf-cross - GCC support library

    gcc-multilib-arm-linux-gnueabihf - GNU C compiler for the armhf architecture

    gccgo-arm-linux-gnueabihf - Go compiler (based on GCC) for the armhf architecture

    libgcc-4.7-dev-armhf-cross - GCC support library (development files)

    libgcc-4.9-dev-armhf-cross - GCC support library (development files)

    libgcc--dev-armhf-cross - GCC support library (development files)

    libgcc1-dbg-armhf-cross - GCC support library (debug symbols)

    libsfgcc-4.7-dev-armhf-cross - GCC support library (soft float ABI development files)

    libsfgcc-4.9-dev-armhf-cross - GCC support library (soft float ABI development files)

    libsfgcc--dev-armhf-cross - GCC support library (soft float ABI development files)

    libsfgcc--dev-armhf-cross - GCC support library (soft float ABI development files)

    libsfgcc1-armhf-cross - GCC support library (soft float ABI)

    libsfgcc1-dbg-armhf-cross - GCC support library (debug symbols)

三、安装命令：

    . sudo apt-get install gcc-arm-linux-gnueabihf

    . 安装结果：

        zengjf@zengjf:~/zengjf/zengjfos/busybox/busybox-1.26.$ arm

        arm2hpdl                          arm-linux-gnueabihf-gcc           arm-linux-gnueabihf-gcov-        arm-linux-gnueabihf-objdump

        arm-linux-gnueabihf-addr2line     arm-linux-gnueabihf-gcc-         arm-linux-gnueabihf-gcov-tool     arm-linux-gnueabihf-ranlib

        arm-linux-gnueabihf-ar            arm-linux-gnueabihf-gcc-ar        arm-linux-gnueabihf-gcov-tool-   arm-linux-gnueabihf-readelf

        arm-linux-gnueabihf-as            arm-linux-gnueabihf-gcc-ar-      arm-linux-gnueabihf-gprof         arm-linux-gnueabihf-size

        arm-linux-gnueabihf-c++filt       arm-linux-gnueabihf-gcc-nm        arm-linux-gnueabihf-ld            arm-linux-gnueabihf-strings

        arm-linux-gnueabihf-cpp           arm-linux-gnueabihf-gcc-nm-      arm-linux-gnueabihf-ld.bfd        arm-linux-gnueabihf-strip

        arm-linux-gnueabihf-cpp-         arm-linux-gnueabihf-gcc-ranlib    arm-linux-gnueabihf-ld.gold

        arm-linux-gnueabihf-dwp           arm-linux-gnueabihf-gcc-ranlib-  arm-linux-gnueabihf-nm

        arm-linux-gnueabihf-elfedit       arm-linux-gnueabihf-gcov          arm-linux-gnueabihf-objcopy