82 lines
2.4 KiB
CMake
82 lines
2.4 KiB
CMake
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# CROSS_COMPILE also needs to be set accordingly or passed to the CMake command
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#if(NOT DEFINED ENV{Q7S_ROOTFS})
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# message(FATAL_ERROR
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# "Define the Q7S_ROOTFS variable to "
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# "point to the raspbian rootfs."
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# )
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#else()
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# set(SYSROOT_PATH "$ENV{Q7S_ROOTFS}")
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#endif()
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if(NOT DEFINED ENV{CROSS_COMPILE})
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set(CROSS_COMPILE "arm-linux-gnueabihf")
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message(STATUS
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"No CROSS_COMPILE environmental variable set, using default ARM linux "
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"cross compiler name ${CROSS_COMPILE}"
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)
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else()
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set(CROSS_COMPILE "$ENV{CROSS_COMPILE}")
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message(STATUS
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"Using environmental variable CROSS_COMPILE as cross-compiler: "
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"$ENV{CROSS_COMPILE}"
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)
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endif()
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# message(STATUS "Using sysroot path: ${SYSROOT_PATH}")
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set(CROSS_COMPILE_CC "${CROSS_COMPILE}-gcc")
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set(CROSS_COMPILE_CXX "${CROSS_COMPILE}-g++")
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set(CROSS_COMPILE_LD "${CROSS_COMPILE}-ld")
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set(CROSS_COMPILE_AR "${CROSS_COMPILE}-ar")
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set(CROSS_COMPILE_RANLIB "${CROSS_COMPILE}-ranlib")
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set(CROSS_COMPILE_STRIP "${CROSS_COMPILE}-strip")
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set(CROSS_COMPILE_NM "${CROSS_COMPILE}-nm")
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set(CROSS_COMPILE_OBJCOPY "${CROSS_COMPILE}-objcopy")
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set(CROSS_COMPILE_SIZE "${CROSS_COMPILE}-size")
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# At the very least, cross compile gcc and g++ have to be set!
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find_program (CROSS_COMPILE_CC_FOUND ${CROSS_COMPILE_CC} REQUIRED)
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find_program (CROSS_COMPILE_CXX_FOUND ${CROSS_COMPILE_CXX} REQUIRED)
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set(CMAKE_CROSSCOMPILING TRUE)
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# set(CMAKE_SYSROOT "${SYSROOT_PATH}")
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# Define name of the target system
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set(CMAKE_SYSTEM_NAME "Linux")
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set(CMAKE_SYSTEM_PROCESSOR "armv7")
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# Define the compiler
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set(CMAKE_C_COMPILER ${CROSS_COMPILE_CC})
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set(CMAKE_CXX_COMPILER ${CROSS_COMPILE_CXX})
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# List of library dirs where LD has to look. Pass them directly through gcc.
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set(LIB_DIRS
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)
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# You can additionally check the linker paths if you add the
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# flags ' -Xlinker --verbose'
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foreach(LIB ${LIB_DIRS})
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set(COMMON_FLAGS "${COMMON_FLAGS} -L${LIB} -Wl,-rpath-link,${LIB}")
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endforeach()
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set(CMAKE_PREFIX_PATH
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"${CMAKE_PREFIX_PATH}"
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# "${SYSROOT_PATH}/usr/lib/${CROSS_COMPILE}"
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)
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set(CMAKE_C_FLAGS
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"-mcpu=cortex-a9 -mfpu=neon-vfpv3 -mfloat-abi=hard ${COMMON_FLAGS}"
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CACHE STRING "C flags for Q7S"
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)
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set(CMAKE_CXX_FLAGS
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"${CMAKE_C_FLAGS}"
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CACHE STRING "CPP flags for Q7S"
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)
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# search for programs in the build host directories
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# for libraries and headers in the target directories
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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