zephyr/arch/posix/CMakeLists.txt

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CMake
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# SPDX-License-Identifier: Apache-2.0
if (CONFIG_64BIT)
# some gcc versions fail to build without -fPIC
zephyr_compile_options(-m64 -fPIC)
zephyr_ld_options(-m64)
else ()
zephyr_compile_options(-m32)
zephyr_ld_options(-m32)
endif ()
zephyr_compile_options(
${ARCH_FLAG}
-include ${ZEPHYR_BASE}/arch/posix/include/posix_cheats.h
)
# @Intent: Obtain compiler specific flags for no freestanding compilation
toolchain_cc_no_freestanding_options()
zephyr_include_directories(${BOARD_DIR})
if (CONFIG_COVERAGE)
toolchain_cc_coverage()
endif ()
if (CONFIG_ASAN)
toolchain_cc_asan()
endif ()
if (CONFIG_UBSAN)
toolchain_cc_ubsan()
endif ()
zephyr_compile_definitions(_POSIX_C_SOURCE=200809 _XOPEN_SOURCE=600 _XOPEN_SOURCE_EXTENDED)
zephyr_ld_options(
-ldl
-pthread
)
# About the -include directive: The reason to do it this way, is because in this
# manner it is transparent to the application. Otherwise posix_cheats.h needs to
# be included in all the applications' files which define main( ), and in any
# app file which uses the pthreads like API provided by Zephyr
# ( include/posix/pthread.h / kernel/pthread.c ) [And any future API added to
# Zephyr which will clash with the native POSIX API] . It would also need to
# be included in a few zephyr kernel files.
add_subdirectory(core)