blob: d3fd58c3494c84bae95e6f851efd6d5e53bc3c98 [file] [log] [blame]
# find the compilers for C, CPP, assembly
find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}armclang PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
find_program(CMAKE_CXX_COMPILER ${CROSS_COMPILE}armclang PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
find_program(CMAKE_ASM_COMPILER ${CROSS_COMPILE}armclang PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
# The CMAKE_REQUIRED_FLAGS variable is used by check_c_compiler_flag()
# (and other commands which end up calling check_c_source_compiles())
# to add additional compiler flags used during checking. These flags
# are unused during "real" builds of Zephyr source files linked into
# the final executable.
#
include(${ZEPHYR_BASE}/cmake/gcc-m-cpu.cmake)
include(${ZEPHYR_BASE}/cmake/gcc-m-fpu.cmake)
# Strip out any trailing +<FOO> from GCC_M_CPU for cases when GCC_M_CPU is
# 'cortex-m33+nodsp' we need that to be 'cortex-m33' for CMAKE_SYSTEM_PROCESSOR
string(REGEX REPLACE "\\+.*" "" CMAKE_SYSTEM_PROCESSOR ${GCC_M_CPU})
list(APPEND TOOLCHAIN_C_FLAGS
-fshort-enums
)
if(CONFIG_ARM64)
list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
list(APPEND TOOLCHAIN_C_FLAGS -mabi=lp64)
list(APPEND TOOLCHAIN_LD_FLAGS -mabi=lp64)
else()
list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
if(CONFIG_COMPILER_ISA_THUMB2)
list(APPEND TOOLCHAIN_C_FLAGS -mthumb)
endif()
list(APPEND TOOLCHAIN_C_FLAGS -mabi=aapcs)
if(CONFIG_FPU)
if(NOT "${GCC_M_FPU}" STREQUAL "auto")
list(APPEND TOOLCHAIN_C_FLAGS -mfpu=${GCC_M_FPU})
endif()
if (CONFIG_FP_SOFTABI)
list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=softfp)
elseif(CONFIG_FP_HARDABI)
list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=hard)
endif()
else()
list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=soft)
endif()
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()
set(CMAKE_REQUIRED_FLAGS ${isystem_include_flags})
string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
if(CONFIG_ARMCLANG_STD_LIBC)
# Zephyr requires AEABI portability to ensure correct functioning of the C
# library, for example error numbers, errno.h.
list(APPEND TOOLCHAIN_C_FLAGS -D_AEABI_PORTABILITY_LEVEL=1)
endif()