1set(CMAKE_CROSSCOMPILING TRUE) 2set(CMAKE_SYSTEM_NAME Linux) 3set(CMAKE_CXX_COMPILER_ID Clang) 4SET (CMAKE_SYSTEM_PROCESSOR arm) 5 6SET ( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 7SET ( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 8SET ( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 9 10SET ( CROSS_COMPILATION_ARCHITECTURE armv7-a) 11 12set(CMAKE_TOOLCHAIN_PREFIX llvm-) 13 14set(PROJECT_ROOT CC_REPLACE_OHOS_ROOT) 15 16#指定c编译工具（确保工具链所在路径已经添加到了PATH环境变量中）和编译标志，使用clang编译时标志中必须指定--target，否则无法交叉编译。 17set(CMAKE_C_COMPILER ${PROJECT_ROOT}/prebuilts/clang/ohos/linux-x86_64/llvm/bin/clang) 18set(CMAKE_C_FLAGS "--target=arm-linux-ohosmusl -D__clang__ -march=armv7-a -mfloat-abi=softfp -mfpu=neon-vfpv4 -w") 19#指定c++编译工具（确保工具链所在路径已经添加到了PATH环境变量中）和编译标志，必须指定--target，否则无法交叉编译。 20set(CMAKE_CXX_COMPILER ${PROJECT_ROOT}/prebuilts/clang/ohos/linux-x86_64/llvm/bin/clang++) 21set(CMAKE_CXX_FLAGS "--target=arm-linux-ohosmusl -D__clang__ -march=armv7-a -mfloat-abi=softfp -mfpu=neon-vfpv4 -w") 22#指定链接工具和链接标志，必须指定--target和--sysroot，其中OHOS_ROOT_PATH可通过cmake命令后缀参数来指定。 23set(MY_LINK_FLAGS "--target=arm-linux-ohosmusl --sysroot=${PROJECT_ROOT}/CC_REPLACE_OHOS_TARGET/obj/third_party/musl/") 24set(CMAKE_LINKER ${PROJECT_ROOT}/prebuilts/clang/ohos/linux-x86_64/llvm/bin/clang) 25set(CMAKE_CXX_LINKER ${PROJECT_ROOT}/prebuilts/clang/ohos/linux-x86_64/llvm/bin/clang++) 26set(CMAKE_C_LINKER ${PROJECT_ROOT}/prebuilts/clang/ohos/linux-x86_64/llvm/bin/clang) 27 28#指定链接库的查找路径。 29set(CMAKE_SYSROOT ${PROJECT_ROOT}/CC_REPLACE_OHOS_TARGET/obj/third_party/musl/) 30set(CMAKE_EXE_LINKER_FLAGS "-Wl,--dynamic-linker,/lib/ld-musl-arm.so.1") 31