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69 lines
1.8 KiB
69 lines
1.8 KiB
include(CMakeForceCompiler) |
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if ($ENV{RPI_TOOLCHAIN_DIR} STREQUAL "") |
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message(FATAL_ERROR "RPI_TOOLCHAIN_DIR not set") |
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else() |
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set(RPI_TOOLCHAIN_DIR $ENV{RPI_TOOLCHAIN_DIR}) |
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endif() |
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# this one is important |
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set(CMAKE_SYSTEM_NAME Generic) |
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#this one not so much |
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set(CMAKE_SYSTEM_VERSION 1) |
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# specify the cross compiler |
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# requires a symbolic link typically from /usr/bin/clang |
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find_program(C_COMPILER clang |
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PATHS ${RPI_TOOLCHAIN_DIR}/gcc-linaro-arm-linux-gnueabihf-raspbian/bin |
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NO_DEFAULT_PATH |
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) |
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if(NOT C_COMPILER) |
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message(FATAL_ERROR "could not find C compiler") |
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endif() |
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cmake_force_c_compiler(${C_COMPILER} Clang) |
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find_program(CXX_COMPILER clang++ |
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PATHS ${RPI_TOOLCHAIN_DIR}/gcc-linaro-arm-linux-gnueabihf-raspbian/bin |
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NO_DEFAULT_PATH |
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) |
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if(NOT CXX_COMPILER) |
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message(FATAL_ERROR "could not find C++ compiler") |
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endif() |
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cmake_force_cxx_compiler(${CXX_COMPILER} Clang) |
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# compiler tools |
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foreach(tool objcopy nm ld) |
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string(TOUPPER ${tool} TOOL) |
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find_program(${TOOL} arm-linux-gnueabihf-${tool} |
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PATHS ${RPI_TOOLCHAIN_DIR}/gcc-linaro-arm-linux-gnueabihf-raspbian/bin |
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NO_DEFAULT_PATH |
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) |
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if(NOT ${TOOL}) |
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message(FATAL_ERROR "could not find arm-linux-gnueabihf-${tool}") |
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endif() |
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endforeach() |
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# os tools |
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foreach(tool echo grep rm mkdir nm cp touch make unzip) |
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string(TOUPPER ${tool} TOOL) |
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find_program(${TOOL} ${tool}) |
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if(NOT ${TOOL}) |
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message(FATAL_ERROR "could not find ${TOOL}") |
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endif() |
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endforeach() |
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add_definitions( |
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-D __DF_RPI |
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) |
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# where is the target environment |
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set(CMAKE_FIND_ROOT_PATH get_file_component(${C_COMPILER} PATH)) |
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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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