我下载了aws-iot-device-sdk-cpp-v2存储库，并使用以下脚本为 x86_64 编译：
#!/bin/sh
WORKSPACE=/home/jose/repos/sdk-cpp-workspace
BUILD_TYPE="Debug"
cmake -DCMAKE_INSTALL_PREFIX=$WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DBUILD_DEPS=ON ../aws-iot-device-sdk-cpp-v2
cmake --build . --target install --config $BUILD_TYPE
现在我正在尝试使用此脚本（使用已创建的工具链）为 armv7l 架构交叉编译它：
#!/bin/sh
WORKSPACE=/home/jose/repos/sdk-cpp-workspace
BUILD_TYPE="Debug"
. /opt/poky/2.2.2/environment-setup-cortexa7hf-neon-vfpv4-poky-linux-gnueabi
cmake -DCMAKE_PREFIX_PATH=$WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DUSE_TOOLCHAIN_FILE=TRUE ../aws-iot-device-sdk-cpp-v2
cmake --build . --target install
我得到了这个输出：
-- The C compiler identification is GNU 6.2.0
-- The CXX compiler identification is GNU 6.2.0
-- Check for working C compiler: /opt/poky/2.2.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc
-- Check for working C compiler: /opt/poky/2.2.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /opt/poky/2.2.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
-- Check for working CXX compiler: /opt/poky/2.2.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- AWS CRT C++ v0.14.1
-- CMake 3.16.3
-- Performing Test AWS_HAVE_GCC_OVERFLOW_MATH_EXTENSIONS
-- Performing Test AWS_HAVE_GCC_OVERFLOW_MATH_EXTENSIONS - Failed
-- Performing Test AWS_HAVE_MSVC_MULX
-- Performing Test AWS_HAVE_MSVC_MULX - Failed
-- Performing Test AWS_HAVE_WINAPI_DESKTOP
-- Performing Test AWS_HAVE_WINAPI_DESKTOP - Failed
-- Performing Test AWS_ARCH_INTEL
-- Performing Test AWS_ARCH_INTEL - Failed
-- Performing Test AWS_ARCH_ARM64
-- Performing Test AWS_ARCH_ARM64 - Failed
-- Performing Test AWS_ARCH_ARM32
-- Performing Test AWS_ARCH_ARM32 - Success
-- Performing Test AWS_HAVE_GCC_INLINE_ASM
-- Performing Test AWS_HAVE_GCC_INLINE_ASM - Success
-- Performing Test AWS_HAVE_AUXV
-- Performing Test AWS_HAVE_AUXV - Success
-- Performing Test AWS_HAVE_EXECINFO
-- Performing Test AWS_HAVE_EXECINFO - Success
-- Performing Test AWS_SHOULD_DISABLE_STRINGOP_OVERFLOW
-- Performing Test AWS_SHOULD_DISABLE_STRINGOP_OVERFLOW - Failed
-- Performing Test HAVE_M_AVX2_FLAG
-- Performing Test HAVE_M_AVX2_FLAG - Failed
-- Performing Test HAVE_AVX2_INTRINSICS
-- Performing Test HAVE_AVX2_INTRINSICS - Failed
-- Performing Test HAVE_MM256_EXTRACT_EPI64
-- Performing Test HAVE_MM256_EXTRACT_EPI64 - Failed
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - yes
-- Found Threads: TRUE
-- Performing Test HAS_MOUTLINE_ATOMICS
-- Performing Test HAS_MOUTLINE_ATOMICS - Failed
-- Performing Test HAS_64BIT_FILE_OFFSET_BY_DEFAULT
-- Performing Test HAS_64BIT_FILE_OFFSET_BY_DEFAULT - Failed
-- Performing Test HAS_64BIT_FILE_OFFSET_VIA_DEFINES
-- Performing Test HAS_64BIT_FILE_OFFSET_VIA_DEFINES - Success
-- Looking for fseeko
-- Looking for fseeko - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stdbool.h
-- Looking for stdbool.h - found
-- Performing Test HAS_WGNU
-- Performing Test HAS_WGNU - Failed
-- Performing Test HAVE_SYSCONF
-- Performing Test HAVE_SYSCONF - Success
-- Looking for pthread_attr_setaffinity_np
-- Looking for pthread_attr_setaffinity_np - found
-- Performing Test HAS_SANITIZERS
-- Performing Test HAS_SANITIZERS - Failed
-- Packaging currently only supported on Fedora.
-- Checking for module 'libunwind-generic'
-- No package 'libunwind-generic' found
libunwind not found. Disabling unwind tests.
-- Go not found. Disabling some code generation and using pre-generated code in generated-src/
-- Perl not found. Disabling some code generation and using pre-generated code in generated-src/
-- Test stdalign_check.c passed, enabling AWS_LC_STDALIGN_AVAILABLE
-- Test builtin_swap_check.c passed, enabling AWS_LC_BUILTIN_SWAP_SUPPORTED
-- The ASM compiler identification is GNU
-- Found assembler: /opt/poky/2.2.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gcc
Copying platform assembly files from /home/jose/repos/sdk-cpp-workspace/aws-iot-device-sdk-cpp-v2/crt/aws-crt-cpp/crt/aws-lc/generated-src/linux-x86/crypto/ to /home/jose/repos/sdk-cpp-workspace/aws-iot-device-sdk-cpp-v2-cross-build/crt/aws-crt-cpp/crt/aws-lc/crypto
-- S2N found target: crypto
-- Using libcrypto from AWS-LC
-- Performing Test AWS_ARM32_CRC
-- Performing Test AWS_ARM32_CRC - Failed
-- Configuring done
-- Generating done
CMake Warning:
Manually-specified variables were not used by the project:
DISCARD_USER_INCLUDE
USE_TOOLCHAIN_FILE
-- Build files have been written to: /home/jose/repos/sdk-cpp-workspace/aws-iot-device-sdk-cpp-v2-cross-build
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