Michael Davidsaver
50 lines
1.7 KiB
CMake
50 lines
1.7 KiB
CMake
# to understand Platform/ read
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# https://github.com/Kitware/CMake/blob/f86d8009c6a4482c81221114a2b04b375564cc94/Source/cmGlobalGenerator.cxx#L461-L504
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set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)
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set(CMAKE_EXECUTABLE_SUFFIX ".elf")
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set(CMAKE_FIND_ROOT_PATH
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"${RTEMS_TARGET_PREFIX}/${RTEMS_BSP}"
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"${RTEMS_TARGET_PREFIX}"
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)
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set(CMAKE_SYSTEM_PREFIX_PATH ${CMAKE_FIND_ROOT_PATH})
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set(CMAKE_SYSTEM_INCLUDE_PATH
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"${RTEMS_TARGET_PREFIX}/${RTEMS_BSP}/lib/include"
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"${RTEMS_TARGET_PREFIX}/include"
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)
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set(CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES ${CMAKE_SYSTEM_INCLUDE_PATH})
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set(CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES ${CMAKE_SYSTEM_INCLUDE_PATH})
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set(CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES
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"${RTEMS_TARGET_PREFIX}/${RTEMS_BSP}/lib"
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)
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set(CMAKE_SYSTEM_LIBRARY_PATH ${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES})
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set(CMAKE_C_FLAGS_INIT
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"-B${RTEMS_TARGET_PREFIX}/${RTEMS_BSP}/lib/ -specs bsp_specs -qrtems ${RTEMS_BSP_C_FLAGS}"
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)
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set(CMAKE_C_FLAGS_INIT ${CMAKE_C_FLAGS_INIT})
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set(CMAKE_EXE_LINKER_FLAGS_INIT "-u Init ${RTEMS_BSP_LINKER_FLAGS}")
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foreach(ldpart ${RTEMS_LDPARTS})
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string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " ${RTEMS_TARGET_PREFIX}/${RTEMS_BSP}/lib/${ldpart}")
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endforeach()
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string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " -static")
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# Needed to pass to try_compile, but not to actual executables
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string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " -lrtemsdefaultconfig")
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# Would be nice to use instead, but break eg. CheckFunctionExists.cmake
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#set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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# libbsd.a has some undefined symbols. eg. iflib_pseudo_detach()
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string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " -Wl,--gc-sections")
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# Hack so that CheckFunctionExists.cmake will find network bits normally found in a libc
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set(CMAKE_REQUIRED_LIBRARIES "-lbsd")
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