84 lines
2.2 KiB
CMake
84 lines
2.2 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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# Configuration for host installed clang
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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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if(DEFINED TOOLCHAIN_HOME)
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set(find_program_clang_args PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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endif()
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find_program(CMAKE_C_COMPILER clang ${find_program_clang_args})
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find_program(CMAKE_CXX_COMPILER clang++ ${find_program_clang_args})
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if(NOT "${ARCH}" STREQUAL "posix")
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include(${ZEPHYR_BASE}/cmake/gcc-m-cpu.cmake)
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if("${ARCH}" STREQUAL "arm")
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list(APPEND TOOLCHAIN_C_FLAGS
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-fshort-enums
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)
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list(APPEND TOOLCHAIN_LD_FLAGS
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-fshort-enums
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)
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_arm.cmake)
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endif()
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foreach(file_name include/stddef.h)
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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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get_filename_component(_OUTPUT "${_OUTPUT}" DIRECTORY)
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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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if(CONFIG_X86)
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if(CONFIG_64BIT)
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string(APPEND TOOLCHAIN_C_FLAGS "-m64")
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else()
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string(APPEND TOOLCHAIN_C_FLAGS "-m32")
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endif()
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endif()
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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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get_filename_component(LIBGCC_DIR ${LIBGCC_FILE_NAME} DIRECTORY)
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list(APPEND LIB_INCLUDE_DIR "-L\"${LIBGCC_DIR}\"")
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if(LIBGCC_DIR)
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list(APPEND TOOLCHAIN_LIBS gcc)
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endif()
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list(APPEND CMAKE_REQUIRED_FLAGS -nostartfiles -nostdlib ${isystem_include_flags})
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string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
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endif()
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# Load toolchain_cc-family macros
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macro(toolchain_cc_nostdinc)
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if(NOT "${ARCH}" STREQUAL "posix")
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zephyr_compile_options( -nostdinc)
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endif()
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endmacro()
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