LINUX高通平台交叉编译地图软件GDAL

• 参考

LINUX编译地图软件GDAL-CSDN博客

• toolchain.cmake文件

  set(CMAKE_SYSTEM_NAME Linux)
  set(CMAKE_SYSTEM_PROCESSOR aarch64)

  高通OE交叉编译器前缀

  set(TOOLCHAIN_PREFIX "aarch64-oe-linux-")
  set(CMAKE_C_COMPILER {TOOLCHAIN_PREFIX}gcc) set(CMAKE_CXX_COMPILER {TOOLCHAIN_PREFIX}g++)
  set(CMAKE_AR {TOOLCHAIN_PREFIX}ar) set(CMAKE_RANLIB {TOOLCHAIN_PREFIX}ranlib)
  set(CMAKE_LIBRARY_ARCHIVER ${TOOLCHAIN_PREFIX}ar)

  Sysroot路径

  set(TOOLCHAIN_SYSROOT "/usr/local/x86-aarch64-toolchain/sysroots/aarch64-oe-linux")
  set(CMAKE_SYSROOT ${TOOLCHAIN_SYSROOT})

  交叉查找规则

  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

  编译flag适配高通AArch64

  set(CMAKE_C_FLAGS "-march=armv8-a -O2 -Os")
  set(CMAKE_CXX_FLAGS "-march=armv8-a -O2 -Os -include limits")

• 编译脚本

  SOURCE_ROOT_PATH=pwd

  TOOLCHAIN_PATH=/usr/local/x86-aarch64-toolchain
  CROSS_NAME=aarch64-oe-linux
  CROSS_BIN={TOOLCHAIN_PATH}/sysroots/x86_64-qtisdk-linux/usr/bin/{CROSS_NAME}
  export PATH={CROSS_BIN}:{PATH}

  . {TOOLCHAIN_PATH}/environment-setup-aarch64-oe-linux . {TOOLCHAIN_PATH}/environment-setup-aarch64-oe-linux-sdllvm

  配置全局变量

  TOOLCHAIN_FILE="{SOURCE_ROOT_PATH}/aarch64-oe.cmake" SYSROOT="{TOOLCHAIN_PATH}/sysroots/aarch64-oe-linux"

  RPJ_INSTALL_DIR=HOME/proj_install GDAL_INSTALL_DIR=HOME/gdal_install

  export PKG_CONFIG_PATH={RPJ_INSTALL_DIR}/lib/pkgconfig:PKG_CONFIG_PATH

  make clean
  rm -rf CMakeCache.txt CMakeFiles
  rm -rf ${GDAL_INSTALL_DIR}

  BUILD_DIR=build
  if [ -d {BUILD_DIR} ]; then rm -rf {BUILD_DIR}
  fi
  mkdir {BUILD_DIR} cd {BUILD_DIR}

  cmake ..
  -DCMAKE_TOOLCHAIN_FILE={TOOLCHAIN_FILE} \ -DCMAKE_FIND_ROOT_PATH="{SYSROOT};{RPJ_INSTALL_DIR}" \ -DCMAKE_INSTALL_PREFIX={GDAL_INSTALL_DIR}
  -DCMAKE_PREFIX_PATH=${RPJ_INSTALL_DIR}
  -DGDAL_USE_HDF5=OFF
  -DGDAL_USE_KEA=OFF
  -DCMAKE_DISABLE_FIND_PACKAGE_HDF5=TRUE

  make -j$(nproc) # -j 参数可以加速编译
  make install

• 编译错误：cannot find -name libjson-c.a

自行编译后，复制到相应目录

sudo cp lib/x86_64-linux-gnu/libjson-c.a /usr/local/x86-aarch64-toolchain/sysroots/aarch64-oe-linux/usr/lib

• 编译错误：cannot find -lhdf5

禁用。