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compiler: clang: Don't link libgcc for native_posix

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libgcc isn't used by native_posix.

Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
This commit is contained in:
Oleg Zhurakivskyy 2019-04-20 15:37:37 +03:00 • committed by Anas Nashif
commit bee7d1ec8b
1 changed files with 28 additions and 24 deletions
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30
cmake/compiler/clang/target.cmake
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@ -28,7 +28,9 @@ find_program(CMAKE_RANLIB llvm-ranlib ${find_program_clang_args})
find_program(CMAKE_OBJCOPY objcopy ${find_program_binutils_args}) find_program(CMAKE_OBJCOPY objcopy ${find_program_binutils_args})
find_program(CMAKE_READELF readelf ${find_program_binutils_args}) find_program(CMAKE_READELF readelf ${find_program_binutils_args})
foreach(file_name include include-fixed) if(NOT "${ARCH}" STREQUAL "posix")
foreach(file_name include include-fixed)
execute_process( execute_process(
COMMAND ${CMAKE_C_COMPILER} --print-file-name=${file_name} COMMAND ${CMAKE_C_COMPILER} --print-file-name=${file_name}
OUTPUT_VARIABLE _OUTPUT OUTPUT_VARIABLE _OUTPUT
@ -36,30 +38,32 @@ foreach(file_name include include-fixed)
string(REGEX REPLACE "\n" "" _OUTPUT ${_OUTPUT}) string(REGEX REPLACE "\n" "" _OUTPUT ${_OUTPUT})
list(APPEND NOSTDINC ${_OUTPUT}) list(APPEND NOSTDINC ${_OUTPUT})
endforeach() endforeach()
foreach(isystem_include_dir ${NOSTDINC}) foreach(isystem_include_dir ${NOSTDINC})
list(APPEND isystem_include_flags -isystem ${isystem_include_dir}) list(APPEND isystem_include_flags -isystem ${isystem_include_dir})
endforeach() endforeach()
# This libgcc code is partially duplicated in compiler/*/target.cmake # This libgcc code is partially duplicated in compiler/*/target.cmake
execute_process( execute_process(
COMMAND ${CMAKE_C_COMPILER} ${TOOLCHAIN_C_FLAGS} --print-libgcc-file-name COMMAND ${CMAKE_C_COMPILER} ${TOOLCHAIN_C_FLAGS} --print-libgcc-file-name
OUTPUT_VARIABLE LIBGCC_FILE_NAME OUTPUT_VARIABLE LIBGCC_FILE_NAME
OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_STRIP_TRAILING_WHITESPACE
) )
assert_exists(LIBGCC_FILE_NAME) assert_exists(LIBGCC_FILE_NAME)
get_filename_component(LIBGCC_DIR ${LIBGCC_FILE_NAME} DIRECTORY) get_filename_component(LIBGCC_DIR ${LIBGCC_FILE_NAME} DIRECTORY)
assert_exists(LIBGCC_DIR) assert_exists(LIBGCC_DIR)
list(APPEND LIB_INCLUDE_DIR "-L\"${LIBGCC_DIR}\"") list(APPEND LIB_INCLUDE_DIR "-L\"${LIBGCC_DIR}\"")
list(APPEND TOOLCHAIN_LIBS gcc) list(APPEND TOOLCHAIN_LIBS gcc)
set(CMAKE_REQUIRED_FLAGS -nostartfiles -nostdlib ${isystem_include_flags} -Wl,--unresolved-symbols=ignore-in-object-files) set(CMAKE_REQUIRED_FLAGS -nostartfiles -nostdlib ${isystem_include_flags} -Wl,--unresolved-symbols=ignore-in-object-files)
string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
endif()
# Load toolchain_cc-family macros # Load toolchain_cc-family macros