43 lines
1.5 KiB
CMake
43 lines
1.5 KiB
CMake
cmake_minimum_required(VERSION 3.13)
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find_program(CMAKE_ASM_COMPILER clang)
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find_program(CMAKE_C_COMPILER clang)
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find_program(CMAKE_CXX_COMPILER clang++)
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# Get host triplet, in case the target isn't set we'll use it as a default
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execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpmachine OUTPUT_VARIABLE HOST_TRIPLET)
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message(STATUS "Host target triplet: ${HOST_TRIPLET}")
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if(NOT TARGET_TRIPLET)
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message(WARNING "TARGET_TRIPLET not set, defaulting to host system (${HOST_TRIPLET})")
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set(TARGET_TRIPLET ${HOST_TRIPLET})
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endif()
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# Get target processor from target triplet (first in triplet, ex. for arm-none-eabi -> arm)
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string(REGEX MATCH "^[^-]*" TARGET_ARCHITECTURE ${TARGET_TRIPLET})
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# We need to tell clang what our target is
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set(CMAKE_ASM_COMPILER_TARGET ${TARGET_TRIPLET})
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set(CMAKE_C_COMPILER_TARGET ${TARGET_TRIPLET})
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set(CMAKE_CXX_COMPILER_TARGET ${TARGET_TRIPLET})
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if(NOT CMAKE_SYSTEM_NAME)
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# Cmake uses Generic as system name for embedded systems, use that here if
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# working on embedded systems
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message(WARNING "CMAKE_SYSTEM_NAME name not set, defaulting to host system name (${CMAKE_HOST_SYSTEM_NAME})")
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set(CMAKE_SYSTEM_NAME ${CMAKE_HOST_SYSTEM_NAME})
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endif()
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if(NOT CMAKE_SYSTEM_VERSION)
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set(CMAKE_SYSTEM_VERSION ${CMAKE_HOST_SYSTEM_VERSION})
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endif()
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if(NOT CMAKE_SYSTEM_PROCESSOR)
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# Getting architecture from target triplet, should not be setting CMAKE_SYSTEM_PROCESSOR
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set(CMAKE_SYSTEM_PROCESSOR ${TARGET_ARCHITECTURE})
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endif()
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message(STATUS "Target: ${TARGET_TRIPLET}")
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message(STATUS "Target system name: ${CMAKE_SYSTEM_NAME}")
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