编译依赖库的方法：

mkdir ../../../packages
cp arm64-toolchain.cmake ../../../packages
cd ../../../packages

【交叉编译spdlog-1.17.0】
wget https://github.com/gabime/spdlog/archive/refs/tags/v1.17.0.tar.gz -O spdlog-1.17.0.tar.gz
tar xf spdlog-1.17.0.tar.gz
cd spdlog-1.17.0
cmake . -DCMAKE_TOOLCHAIN_FILE=../arm64-toolchain.cmake -DSPDLOG_BUILD_SHARED=ON
make
make install DESTDIR=$(pwd)/_install
cd _install
sudo chown -R root:root usr
tar cf spdlog-1.17.0-binary.tar usr
cd ../..

【交叉编译openssl-1.1.1w】
wget https://www.openssl.org/source/old/1.1.1/openssl-1.1.1w.tar.gz
tar xf openssl-1.1.1w.tar.gz
cd openssl-1.1.1w
./Configure linux-armv4 no-asm \
  --cross-compile-prefix=$(realpath ../../Luckfox_Nova_SDK_250430/prebuilts/gcc/linux-x86/aarch64/gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu/bin)/aarch64-none-linux-gnu- \
  enable-ssl3 enable-ssl3-method enable-weak-ssl-ciphers \
  shared
（配置的时候开启了ssl3.0协议和3des算法）
make
make install DESTDIR=$(pwd)/_install
cd _install
sudo chown -R root:root usr
tar cf openssl-1.1.1w-binary.tar usr
cd ../..

【交叉编译zlib-1.3.1】
wget https://www.zlib.net/zlib-1.3.1.tar.gz
tar xf zlib-1.3.1.tar.gz
cd zlib-1.3.1
cmake . -DCMAKE_TOOLCHAIN_FILE=../arm64-toolchain.cmake
make
make install DESTDIR=$(pwd)/_install
cd _install
sudo chown -R root:root usr
tar cf zlib-1.3.1-binary.tar usr
cd ../..

编译主程序的方法：

rm -rf CMakeFiles Makefile RSA_public_key.pem RSA_private_key.pem CMakeCache.txt cmake_install.cmake spi_handler_app

cmake .. -DCMAKE_TOOLCHAIN_FILE=arm64-toolchain.cmake \
  -DCMAKE_CXX_FLAGS=-Wl,-rpath,/root \
  -DCMAKE_PREFIX_PATH=$(pwd)/../../../packages/spdlog-1.17.0/_install/usr/local \
  -DOPENSSL_ROOT_DIR=$(pwd)/../../../packages/openssl-1.1.1w/_install/usr/local \
  -DZLIB_LIBRARY=$(pwd)/../../../packages/zlib-1.3.1/_install/usr/local
make

编译完成后，把下列文件上传到板子上的/root目录下。
../../../packages/spdlog-1.17.0/_install/usr/local/lib/libspdlog.so.1.17.0
../../../packages/openssl-1.1.1w/_install/usr/local/lib/libcrypto.so.1.1
../../../packages/openssl-1.1.1w/_install/usr/local/lib/libssl.so.1.1
../../../packages/zlib-1.3.1/_install/usr/local/lib/libz.so.1.3.1
spi_handler_app
RSA_public_key.pem
RSA_private_key.pem
用到的adb命令：
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\packages\spdlog-1.17.0\_install\usr\local\lib\libspdlog.so.1.17.0" /root/libspdlog.so.1.17
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\packages\openssl-1.1.1w\_install\usr\local\lib\libcrypto.so.1.1" /root
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\packages\openssl-1.1.1w\_install\usr\local\lib\libssl.so.1.1" /root
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\packages\zlib-1.3.1\_install\usr\local\lib\libz.so.1.3.1" /root
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\onmini-cyl_-gatt_-service\example\build\spi_handler_app" /root
adb shell chmod +x /root/spi_handler_app
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\onmini-cyl_-gatt_-service\example\build\RSA_public_key.pem" /root
adb push "\\oct1158-ubuntu\oct1158\Documents\Code\C\onmini-cyl_-gatt_-service\example\build\RSA_private_key.pem" /root