驅動程式 - Linux Device Driver(LDD) - 如何安裝Crosstool GCC-4.9.4

參考資訊：
https://www.kernel.org/pub/tools/crosstool/files/bin/arm64/4.9.4/

$ cd
$ wget https://www.kernel.org/pub/tools/crosstool/files/bin/arm64/4.9.4/arm64-gcc-4.9.4-nolibc-arm-linux-gnueabi.tar.gz
$ tar xvf arm64-gcc-4.9.4-nolibc-arm-linux-gnueabi.tar.gz
$ sudo mv gcc-4.9.4-nolibc/arm-linux-gnueabi/ /opt/gcc-4.9.4_arm32
$ export PATH=/opt/gcc-4.9.4_arm32/bin/:$PATH

$ cd
$ wget https://www.mpfr.org/mpfr-3.1.6/mpfr-3.1.6.tar.gz
$ tar xf mpfr-3.1.6.tar.gz
$ cd mpfr-3.1.6
$ ./configure --prefix=/opt/mpfr-3.1.6
$ make -j4
$ sudo make install
$ export LD_LIBRARY_PATH=/opt/mpfr-3.1.6/lib:$LD_LIBRARY_PATH

$ cd
$ wget https://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.32.tar.gz
$ tar xvf linux-2.6.32.tar.gz
$ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make versatile_defconfig
$ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make zImage -j4
$ vim kernel/timeconst.pl +373
    if (!(@val)) {

$ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make zImage -j4
$ file arch/arm/boot/zImage 
    arch/arm/boot/zImage: Linux kernel ARM boot executable zImage (little-endian)