63 lines
2.5 KiB
CMake
63 lines
2.5 KiB
CMake
# Configuration for host installed llvm
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#
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set(NOSTDINC "")
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# Note that NOSYSDEF_CFLAG may be an empty string, and
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# set_ifndef() does not work with empty string.
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if(NOT DEFINED NOSYSDEF_CFLAG)
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set(NOSYSDEF_CFLAG -undef)
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endif()
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find_program(CMAKE_C_COMPILER clang PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_CXX_COMPILER clang++ PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_AR llvm-ar PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_LINKER llvm-link PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_NM llvm-nm PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_OBJDUMP llvm-objdump PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_RANLIB llvm-ranlib PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_OBJCOPY objcopy PATH ${TOOLCHAIN_HOME})
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find_program(CMAKE_READELF readelf PATH ${TOOLCHAIN_HOME})
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foreach(file_name include include-fixed)
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} --print-file-name=${file_name}
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OUTPUT_VARIABLE _OUTPUT
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)
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string(REGEX REPLACE "\n" "" _OUTPUT ${_OUTPUT})
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list(APPEND NOSTDINC ${_OUTPUT})
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endforeach()
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foreach(isystem_include_dir ${NOSTDINC})
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list(APPEND isystem_include_flags -isystem ${isystem_include_dir})
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endforeach()
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# This libgcc code is partially duplicated in compiler/*/target.cmake
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} ${TOOLCHAIN_C_FLAGS} --print-libgcc-file-name
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OUTPUT_VARIABLE LIBGCC_FILE_NAME
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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assert_exists(LIBGCC_FILE_NAME)
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get_filename_component(LIBGCC_DIR ${LIBGCC_FILE_NAME} DIRECTORY)
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assert_exists(LIBGCC_DIR)
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list(APPEND LIB_INCLUDE_DIR "-L\"${LIBGCC_DIR}\"")
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list(APPEND TOOLCHAIN_LIBS gcc)
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set(CMAKE_REQUIRED_FLAGS -nostartfiles -nostdlib ${isystem_include_flags} -Wl,--unresolved-symbols=ignore-in-object-files)
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string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
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# Load toolchain_cc-family macros
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# Clang and GCC are almost feature+flag compatible, so reuse freestanding gcc
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_security_fortify.cmake)
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_security_canaries.cmake)
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_optimizations.cmake)
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_cpp.cmake)
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_asm.cmake)
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_baremetal.cmake)
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