blob: 86cf051ccdef1ace35eb917de683d0e35ae093e5 [file] [log] [blame]
# SPDX-License-Identifier: Apache-2.0
if (NOT CMAKE_HOST_UNIX OR CMAKE_HOST_APPLE)
message(FATAL_ERROR "The POSIX architecture only works on Linux. If on Windows or macOS "
"consider using a virtual machine to run a Linux guest.")
endif()
# This native_simulator library is used to pass options to the
# native_simulator runner build. Currently the following are used:
# INTERFACE_COMPILE_OPTIONS:
# Extra compile options to be used during the build of the runner files
# For ex. target_compile_options(native_simulator INTERFACE "-m64")
# INTERFACE_LINK_OPTIONS:
# Extra link options to be passed during the *final* link of the runner
# with the embedded SW.
# For ex. target_link_options(native_simulator INTERFACE "-lstdc++")
# INTERFACE_SOURCES:
# Extra sources to be built in the native simulator runner context
# For ex. target_sources(native_simulator INTERFACE silly.c)
# Note that these are built with the host libC and the include directories
# the runner is built with.
# RUNNER_LINK_LIBRARIES:
# Extra libraries to link with the runner
# For ex. set_property(TARGET native_simulator APPEND PROPERTY RUNNER_LINK_LIBRARIES "mylib.a")
# Note: target_link_libraries() cannot be used on this library at this point.
# target_link_libraries() updates INTERFACE_LINK_LIBRARIES but wrapping it with extra
# information. This means we cannot directly pass it to the native_simulator runner build.
# Check https://cmake.org/cmake/help/latest/prop_tgt/INTERFACE_LINK_LIBRARIES.html for more
# info.
# We use target_link_options() instead
add_library(native_simulator INTERFACE)
set_property(TARGET native_simulator PROPERTY RUNNER_LINK_LIBRARIES "")
set(NSI_DIR ${ZEPHYR_BASE}/scripts/native_simulator CACHE PATH "Path to the native simulator")
if(EXISTS ${CMAKE_CURRENT_LIST_DIR}/${CMAKE_HOST_SYSTEM_NAME}.${CMAKE_HOST_SYSTEM_PROCESSOR}.cmake)
# @Intent: Set necessary compiler & linker options for this specific host architecture & OS
include(${CMAKE_HOST_SYSTEM_NAME}.${CMAKE_HOST_SYSTEM_PROCESSOR}.cmake)
else() # Linux.x86_64
if (CONFIG_64BIT)
# some gcc versions fail to build without -fPIC
zephyr_compile_options(-m64 -fPIC)
zephyr_link_libraries(-m64)
target_link_options(native_simulator INTERFACE "-m64")
target_compile_options(native_simulator INTERFACE "-m64")
else ()
zephyr_compile_options(-m32)
zephyr_link_libraries(-m32)
target_link_options(native_simulator INTERFACE "-m32")
target_compile_options(native_simulator INTERFACE "-m32")
# When building for 32bits x86, gcc defaults to using the old 8087 float arithmetic
# which causes some issues with literal float comparisons. So we set it
# to use the SSE2 float path instead
# (clang defaults to use SSE, but, setting this option for it is safe)
check_set_compiler_property(APPEND PROPERTY fpsse2 "SHELL:-msse2 -mfpmath=sse")
zephyr_compile_options($<TARGET_PROPERTY:compiler,fpsse2>)
target_compile_options(native_simulator INTERFACE "$<TARGET_PROPERTY:compiler,fpsse2>")
endif ()
endif()
zephyr_compile_options(
${ARCH_FLAG}
)
if (CONFIG_NATIVE_APPLICATION)
zephyr_compile_options(
-include ${ZEPHYR_BASE}/arch/posix/include/posix_cheats.h
)
elseif (CONFIG_NATIVE_LIBRARY)
zephyr_compile_options(
-fvisibility=hidden
)
# While doing the partial linking of the native library, some symbols will be missing
# which are provided by the native simulator runner
zephyr_ld_options(
-Wl,--unresolved-symbols=ignore-all
)
if (NOT CONFIG_EXTERNAL_LIBC)
# Get the *compiler* include path, that is where the *compiler* provided headers are (not the
# default libC ones). This includes basic headers like stdint.h, stddef.h or float.h
# We expect something like
# /usr/lib/gcc/x86_64-linux-gnu/12/include or /usr/lib/llvm-14/lib/clang/14.0.0/include
execute_process(
COMMAND ${CMAKE_C_COMPILER} --print-file-name=include/stddef.h
OUTPUT_VARIABLE _OUTPUT
COMMAND_ERROR_IS_FATAL ANY
)
get_filename_component(COMPILER_OWN_INCLUDE_PATH "${_OUTPUT}" DIRECTORY)
# Do not use the C library from this compiler/host,
# but still use the basic compiler headers
# -fno-builtin to avoid the compiler using builtin replacements for std library functions
zephyr_compile_options(
-nostdinc
-isystem ${COMPILER_OWN_INCLUDE_PATH}
$<TARGET_PROPERTY:compiler,freestanding>
-fno-builtin
)
endif()
endif()
if(CONFIG_EXTERNAL_LIBC)
# @Intent: Obtain compiler specific flags for no freestanding compilation
zephyr_compile_options($<TARGET_PROPERTY:compiler,hosted>)
endif()
if(CONFIG_EXTERNAL_LIBCPP)
target_link_options(native_simulator INTERFACE "-lstdc++")
endif()
zephyr_include_directories(${BOARD_DIR})
if(CONFIG_COVERAGE)
target_compile_options(native_simulator INTERFACE $<TARGET_PROPERTY:compiler,coverage>)
target_link_options(native_simulator INTERFACE $<TARGET_PROPERTY:linker,coverage>)
endif()
if (CONFIG_GPROF)
zephyr_compile_options($<TARGET_PROPERTY:compiler,gprof>)
zephyr_link_libraries($<TARGET_PROPERTY:linker,gprof>)
target_link_options(native_simulator INTERFACE "-pg")
endif()
zephyr_compile_definitions(_POSIX_C_SOURCE=200809 _XOPEN_SOURCE=600 _XOPEN_SOURCE_EXTENDED)
if (CONFIG_NATIVE_APPLICATION)
zephyr_ld_options(
-ldl
-pthread
)
endif()
# 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.
#
# Support for the LLVM Sanitizer toolchain instrumentation frameworks
# (supported by current gcc's as well)
#
if(CONFIG_ASAN)
list(APPEND LLVM_SANITIZERS "address")
endif()
if(CONFIG_MSAN)
list(APPEND LLVM_SANITIZERS "memory")
endif()
if(CONFIG_UBSAN)
list(APPEND LLVM_SANITIZERS "undefined")
endif()
if(CONFIG_ASAN_RECOVER)
zephyr_compile_options(-fsanitize-recover=all)
endif()
if(CONFIG_ARCH_POSIX_LIBFUZZER)
list(APPEND LLVM_SANITIZERS "fuzzer")
if(NOT CONFIG_64BIT)
# On i386, libfuzzer seems to dynamically relocate the binary, so
# we need to emit PIC code. This limitation is undocumented and
# poorly understood...
zephyr_compile_options(-fPIC)
endif()
endif()
list(JOIN LLVM_SANITIZERS "," LLVM_SANITIZERS_ARG)
if(NOT ${LLVM_SANITIZERS_ARG} STREQUAL "")
set(LLVM_SANITIZERS_ARG "-fsanitize=${LLVM_SANITIZERS_ARG}")
zephyr_compile_options("${LLVM_SANITIZERS_ARG}")
zephyr_link_libraries("${LLVM_SANITIZERS_ARG}")
target_link_options(native_simulator INTERFACE ${LLVM_SANITIZERS_ARG})
target_compile_options(native_simulator INTERFACE ${LLVM_SANITIZERS_ARG})
endif()
# Override the C standard used for compilation to C 2011
# This is due to some tests using _Static_assert which is a 2011 feature, but
# otherwise relying on compilers supporting it also when set to C99.
# This was in general ok, but with some host compilers and C library versions
# it led to problems. So we override it to 2011 for native_posix.
set_property(GLOBAL PROPERTY CSTD c11)
add_subdirectory(core)