在windows上，用cmake 交叉编译arm程序。生成器用nijia(或用MinGW，此时， cmake执行时，指定生成器为 -G “MinGW Makefiles”， 编译用make).
CMakeLists.txt
cmake_minimum_required(VERSION 3.6)project(testApp)file(WRITE main.cpp "int main(void) { return 0; }")set(testApp "testApp")list(APPEND testApp_sourcesmain.cpp)add_executable(${testApp}${testApp_sources})
toolchain.cmake
set(CMAKE_SYSTEM_NAME Generic)set(CMAKE_SYSTEM_PROCESSOR arm)set(CMAKE_C_COMPILER "arm-none-eabi-gcc.exe")set(CMAKE_CXX_COMPILER "arm-none-eabi-g++.exe")set(CMAKE_EXE_LINKER_FLAGS "--specs=nosys.specs" CACHE INTERNAL "")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)
在cmd 执行
cmake -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE:PATH="..\toolchain.cmake" ..-- The C compiler identification is GNU 8.3.0-- The CXX compiler identification is GNU 8.3.0-- Check for working C compiler: D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-gcc.exe-- Check for working C compiler: D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-gcc.exe -- 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: D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-g++.exe-- Check for working CXX compiler: D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-g++.exe -- works-- Detecting CXX compiler ABI info-- Detecting CXX compiler ABI info - done-- Detecting CXX compile features-- Detecting CXX compile features - done-- Configuring done-- Generating done-- Build files have been written to: D:/work/clip/code/test/build
编译
>ninja[2/2] Linking CXX executable testApp
说下遇到的问题，出现以下错误:
D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-gccis not a full path to an existing compiler tool.Tell CMake where to find the compiler by setting either the environmentvariable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path tothe compiler, or to the compiler name if it is in the PATH.
原因是在window下，要把后缀也写上。下面是不行的。
set(CMAKE_C_COMPILER "D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-gcc")
改成
set(CMAKE_C_COMPILER "D:/sigmastar/flythings/sdk/platforms/ssd/toolchain/bin/arm-pc-linux-gnueabihf-gcc.exe")
您的支持是我持续创作的动力！
