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85 lines
2.5 KiB
85 lines
2.5 KiB
# 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(${ZEPHYR_BASE}/cmake/gcc-m-cpu.cmake) |
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include(${ZEPHYR_BASE}/cmake/gcc-m-fpu.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/clang/target_arm.cmake) |
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elseif("${ARCH}" STREQUAL "arm64") |
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include(${ZEPHYR_BASE}/cmake/compiler/clang/target_arm64.cmake) |
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elseif("${ARCH}" STREQUAL "riscv") |
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/target_riscv.cmake) |
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endif() |
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if(DEFINED CMAKE_C_COMPILER_TARGET) |
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set(clang_target_flag "--target=${CMAKE_C_COMPILER_TARGET}") |
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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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list(APPEND TOOLCHAIN_C_FLAGS "-m64") |
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else() |
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list(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} ${clang_target_flag} ${TOOLCHAIN_C_FLAGS} |
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--print-libgcc-file-name |
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OUTPUT_VARIABLE RTLIB_FILE_NAME |
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OUTPUT_STRIP_TRAILING_WHITESPACE |
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) |
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get_filename_component(RTLIB_DIR ${RTLIB_FILE_NAME} DIRECTORY) |
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get_filename_component(RTLIB_NAME_WITH_PREFIX ${RTLIB_FILE_NAME} NAME_WLE) |
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string(REPLACE lib "" RTLIB_NAME ${RTLIB_NAME_WITH_PREFIX}) |
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list(APPEND LIB_INCLUDE_DIR -L${RTLIB_DIR}) |
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list(APPEND TOOLCHAIN_LIBS ${RTLIB_NAME}) |
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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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