2015-09-07 21:37:45 -03:00
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# defines:
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#
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# NM
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# OBJCOPY
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# LD
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# CXX_COMPILER
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# C_COMPILER
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# CMAKE_SYSTEM_NAME
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# CMAKE_SYSTEM_VERSION
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# GENROMFS
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# LINKER_FLAGS
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# CMAKE_EXE_LINKER_FLAGS
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# CMAKE_FIND_ROOT_PATH
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# CMAKE_FIND_ROOT_PATH_MODE_PROGRAM
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# CMAKE_FIND_ROOT_PATH_MODE_LIBRARY
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# CMAKE_FIND_ROOT_PATH_MODE_INCLUDE
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include(CMakeForceCompiler)
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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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find_program(C_COMPILER arm-none-eabi-gcc)
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if(NOT C_COMPILER)
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message(FATAL_ERROR "could not find arm-none-eabi-gcc compiler")
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endif()
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cmake_force_c_compiler(${C_COMPILER} GNU)
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find_program(CXX_COMPILER arm-none-eabi-g++)
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if(NOT CXX_COMPILER)
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message(FATAL_ERROR "could not find arm-none-eabi-g++ compiler")
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endif()
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cmake_force_cxx_compiler(${CXX_COMPILER} GNU)
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# compiler tools
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2015-09-13 15:31:58 -03:00
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foreach(tool objcopy nm ld gdb)
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2015-09-07 21:37:45 -03:00
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string(TOUPPER ${tool} TOOL)
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find_program(${TOOL} arm-none-eabi-${tool})
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if(NOT ${TOOL})
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2015-09-08 05:17:54 -03:00
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message(FATAL_ERROR "could not find ${tool}")
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2015-09-07 21:37:45 -03:00
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endif()
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endforeach()
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# os tools
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2015-09-08 05:17:54 -03:00
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foreach(tool echo patch grep rm mkdir nm genromfs awk cp touch make unzip)
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2015-09-07 21:37:45 -03:00
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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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set(LINKER_FLAGS "-Wl,-gc-sections")
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set(CMAKE_EXE_LINKER_FLAGS ${LINKER_FLAGS})
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# where is the target environment
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set(CMAKE_FIND_ROOT_PATH get_file_component(${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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