blob: 2289856941feec914266960db73bcb60675a3a5c [file] [log] [blame]
# SPDX-License-Identifier: Apache-2.0
# Configuration for host installed clang
#
set(NOSTDINC "")
# Note that NOSYSDEF_CFLAG may be an empty string, and
# set_ifndef() does not work with empty string.
if(NOT DEFINED NOSYSDEF_CFLAG)
set(NOSYSDEF_CFLAG -undef)
endif()
if(DEFINED TOOLCHAIN_HOME)
set(find_program_clang_args PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
endif()
find_program(CMAKE_C_COMPILER clang ${find_program_clang_args})
find_program(CMAKE_CXX_COMPILER clang++ ${find_program_clang_args})
if(NOT "${ARCH}" STREQUAL "posix")
include(${ZEPHYR_BASE}/cmake/gcc-m-cpu.cmake)
if("${ARCH}" STREQUAL "arm")
list(APPEND TOOLCHAIN_C_FLAGS
-fshort-enums
)
list(APPEND TOOLCHAIN_LD_FLAGS
-fshort-enums
)
include(${ZEPHYR_BASE}/cmake/compiler/clang/target_arm.cmake)
endif()
if(DEFINED CMAKE_C_COMPILER_TARGET)
set(clang_target_flag "--target=${CMAKE_C_COMPILER_TARGET}")
endif()
foreach(file_name include/stddef.h)
execute_process(
COMMAND ${CMAKE_C_COMPILER} --print-file-name=${file_name}
OUTPUT_VARIABLE _OUTPUT
)
get_filename_component(_OUTPUT "${_OUTPUT}" DIRECTORY)
string(REGEX REPLACE "\n" "" _OUTPUT ${_OUTPUT})
list(APPEND NOSTDINC ${_OUTPUT})
endforeach()
foreach(isystem_include_dir ${NOSTDINC})
list(APPEND isystem_include_flags -isystem "\"${isystem_include_dir}\"")
endforeach()
if(CONFIG_X86)
if(CONFIG_64BIT)
list(APPEND TOOLCHAIN_C_FLAGS "-m64")
else()
list(APPEND TOOLCHAIN_C_FLAGS "-m32")
endif()
endif()
# This libgcc code is partially duplicated in compiler/*/target.cmake
execute_process(
COMMAND ${CMAKE_C_COMPILER} ${clang_target_flag} ${TOOLCHAIN_C_FLAGS}
--print-libgcc-file-name
OUTPUT_VARIABLE RTLIB_FILE_NAME
OUTPUT_STRIP_TRAILING_WHITESPACE
)
get_filename_component(RTLIB_DIR ${RTLIB_FILE_NAME} DIRECTORY)
get_filename_component(RTLIB_NAME_WITH_PREFIX ${RTLIB_FILE_NAME} NAME_WLE)
string(REPLACE lib "" RTLIB_NAME ${RTLIB_NAME_WITH_PREFIX})
list(APPEND LIB_INCLUDE_DIR -L${RTLIB_DIR})
list(APPEND TOOLCHAIN_LIBS ${RTLIB_NAME})
list(APPEND CMAKE_REQUIRED_FLAGS -nostartfiles -nostdlib ${isystem_include_flags})
string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
endif()
# Load toolchain_cc-family macros
macro(toolchain_cc_nostdinc)
if(NOT "${ARCH}" STREQUAL "posix")
zephyr_compile_options( -nostdinc)
endif()
endmacro()