72edc4e15f
Add an LLVM backend and a clang toolchain variant to support building with llvm coming with popular Linux distributions. This has been tested with X86 boards: - quark_d2000_crb - quark_se_c1000_devboard/Arduino 101 Use: export ZEPHYR_TOOLCHAIN_VARIANT=clang Signed-off-by: Anas Nashif <anas.nashif@intel.com>
24 lines
1 KiB
CMake
24 lines
1 KiB
CMake
set(CLANG_ROOT $ENV{CLANG_ROOT_DIR})
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set_ifndef(CLANG_ROOT /usr)
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set(COMPILER clang)
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if(CONFIG_ARM)
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set(triple arm-none-eabi)
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set(CMAKE_EXE_LINKER_FLAGS_INIT "--specs=nosys.specs")
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elseif(CONFIG_X86)
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set(triple i686-pc-none-elf)
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endif()
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set(CMAKE_C_COMPILER ${CLANG_ROOT}/bin/clang)
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set(CMAKE_C_COMPILER_TARGET ${triple})
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set(CMAKE_ASM_COMPILER_TARGET ${triple})
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set(CMAKE_CXX_COMPILER ${CLANG_ROOT}/bin/clang++)
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set(CMAKE_CXX_COMPILER_TARGET ${triple})
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set(CMAKE_AR "${CLANG_ROOT}/bin/llvm-ar" CACHE INTERNAL " " FORCE)
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set(CMAKE_LINKER "${CLANG_ROOT}/bin/llvm-link" CACHE INTERNAL " " FORCE)
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SET(CMAKE_NM "${CLANG_ROOT}/bin/llvm-nm" CACHE INTERNAL " " FORCE)
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SET(CMAKE_OBJDUMP "${CLANG_ROOT}/bin/llvm-objdump" CACHE INTERNAL " " FORCE)
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SET(CMAKE_RANLIB "${CLANG_ROOT}/bin/llvm-ranlib" CACHE INTERNAL " " FORCE)
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set(CMAKE_OBJCOPY objcopy CACHE INTERNAL " " FORCE)
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set(CMAKE_READELF readelf CACHE INTERNAL " " FORCE)
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