1. 系统

     ubuntu18.04 64位
     由于提供交叉编译程序为32位。需要在64上安装支持32位程序运行库,命令如下 

     dpkg --print-architecture  #确认64为架构的内核
      dpkg --print-foreign-architectures  #确认打开了多架构支持功能

输出i386为已打开 ，如果没有需要手动打开

    sudo dpkg --add-architecture i386
    sudo apt-get update

再执行

sudo apt-get dist-upgrade  ( #这一步是更新所有的软件，如果你对新版本软件的需求不是那么迫切，可以不执行)

安装32位支持库

    sudo apt install libc6:i386
     sudo apt install libstdc++6:i386

2. 下载生成交叉编译环境

   aarch64-himix200-linux.tgz。
 执行    source ./aarch64-himix200-linux.install [dirname]  生成交叉编译环境到dirname

3. 配置交叉编译环境脚本

编写配置脚本configure-environment.sh,内容如下:

#!/bin/sh
 
SDK_PATH="/home/username/aarch64-himix200-linux/"
export TOOLCHAIN_SYS=aarch64-himix200-linux
export TOOLCHAIN_PREFIX=$TOOLCHAIN_SYS-
export SDK_PATH_NATIVE=$SDK_PATH/
export SDK_PATH_TARGET=$SDK_PATH/target
export PATH=$SDK_PATH_NATIVE/bin/aarch64-himix200-linux:$PATH
export CPATH=$SDK_PATH_TARGET/usr/include:$CPATH
export PKG_CONFIG_SYSROOT_DIR=$SDK_PATH_TARGET
export PKG_CONFIG_PATH=$SDK_PATH_TARGET/usr/lib/pkgconfig
export PKG_CONFIG_ALLOW_SYSTEM_LIBS=1
#export CONFIG_SITE=$SDK_PATH/site-config-$REAL_MULTIMACH_TARGET_SYS
export CC="${SDK_PATH}/bin/${TOOLCHAIN_PREFIX}gcc"
#--sysroot=$SDK_PATH_TARGET
export CXX="${SDK_PATH}/bin/${TOOLCHAIN_PREFIX}g++"
# --sysroot=$SDK_PATH_TARGET
export GDB=${TOOLCHAIN_PREFIX}gdb
export CPP="${TOOLCHAIN_PREFIX}gcc -E --sysroot=$SDK_PATH_TARGET"
export LD="${TOOLCHAIN_PREFIX}ld --sysroot=$SDK_PATH_TARGET"
export NM=${TOOLCHAIN_PREFIX}nm
export AS=${TOOLCHAIN_PREFIX}as
export AR=${TOOLCHAIN_PREFIX}ar
export RANLIB=${TOOLCHAIN_PREFIX}ranlib
export OBJCOPY=${TOOLCHAIN_PREFIX}objcopy
export OBJDUMP=${TOOLCHAIN_PREFIX}objdump
export STRIP=${TOOLCHAIN_PREFIX}strip
export CONFIGURE_FLAGS="--target=aarch64-linux --host=aarch64-linux --build=x86_64-linux --with-libtool-sysroot=$SDK_PATH_TARGET"
export CPPFLAGS=" --sysroot=$SDK_PATH_TARGET"
export CFLAGS="$CPPFLAGS"
export CXXFLAGS="$CPPFLAGS"
export LDFLAGS=" --sysroot=$SDK_PATH_TARGET"
export OECORE_NATIVE_SYSROOT=$SDK_PATH_NATIVE
export OECORE_TARGET_SYSROOT=$SDK_PATH_TARGET
export OECORE_ACLOCAL_OPTS="-I $SDK_PATH_NATIVE/usr/share/aclocal"
export OECORE_DISTRO_VERSION="2020.05"
export OECORE_SDK_VERSION="2020.05"
 
# Append environment subscripts
if [ -d "$OECORE_TARGET_SYSROOT/environment-setup.d" ]; then
    for envfile in $OECORE_TARGET_SYSROOT/environment-setup.d/*.sh; do
        . $envfile
    done
fi
if [ -d "$OECORE_NATIVE_SYSROOT/environment-setup.d" ]; then
    for envfile in $OECORE_NATIVE_SYSROOT/environment-setup.d/*.sh; do
        . $envfile
    done
fi

cmake 编译工程

（1）编写build_hisi.sh,内容如下:

#!/bin/bash
source /home/username/Hisi/configure-environment.sh
cd ./build
#cmake -DCMAKE_SYSTEM_VERSION="3569" -DCMAKE_SYSTEM_PROCESSOR="aarch64" -DCMAKE_TOOLCHAIN_FILE=./toolchain_hisi.cmake -G"Unix Makefiles" ..
cmake ..
make -j8

4. demo编译
   下载解压freetype-2.10.2
   修改configure-environment.sh 下SDK_PATH 为自己的路径
   build_hisi.sh下修改configure-environment.sh为自己的路径
   build_his.sh文件拷贝到freetype-2.10.2解压后CMakeList同级路径。
   执行命令:
   mkdir build
   ./build_his.sh