| # |
| # Copyright (c) 2020-2021 Arm Limited. All rights reserved. |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| # Licensed under the Apache License, Version 2.0 (the License); you may |
| # not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| set(TARGET_CPU "cortex-m4" CACHE STRING "Target CPU") |
| |
| set(CMAKE_SYSTEM_NAME Generic) |
| set(CMAKE_C_COMPILER "arm-none-eabi-gcc") |
| set(CMAKE_ASM_COMPILER "arm-none-eabi-gcc") |
| set(CMAKE_CXX_COMPILER "arm-none-eabi-g++") |
| |
| # Convert TARGET_CPU=Cortex-M33+nofp+nodsp into |
| # - CMAKE_SYSTEM_PROCESSOR=cortex-m33 |
| # - TARGET_CPU_FEATURES=no-fp;no-dsp |
| string(REPLACE "+" ";" TARGET_CPU_FEATURES ${TARGET_CPU}) |
| list(POP_FRONT TARGET_CPU_FEATURES CMAKE_SYSTEM_PROCESSOR) |
| string(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} CMAKE_SYSTEM_PROCESSOR) |
| |
| set(CMAKE_EXECUTABLE_SUFFIX ".elf") |
| set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) |
| set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) |
| set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) |
| set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) |
| |
| # Select C/C++ version |
| set(CMAKE_C_STANDARD 99) |
| set(CMAKE_CXX_STANDARD 14) |
| |
| # Compile options |
| add_compile_options( |
| -mcpu=${TARGET_CPU} |
| -mthumb |
| "$<$<CONFIG:DEBUG>:-gdwarf-3>" |
| "$<$<COMPILE_LANGUAGE:CXX>:-fno-unwind-tables;-fno-rtti;-fno-exceptions>") |
| |
| # Compile defines |
| add_compile_definitions( |
| "$<$<NOT:$<CONFIG:DEBUG>>:NDEBUG>") |
| |
| # Link options |
| add_link_options( |
| -mcpu=${TARGET_CPU} |
| -mthumb |
| --specs=nosys.specs) |
| |
| # Set floating point unit |
| if("${TARGET_CPU}" MATCHES "\\+fp") |
| set(FLOAT hard) |
| elseif("${TARGET_CPU}" MATCHES "\\+nofp") |
| set(FLOAT soft) |
| elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "cortex-m33" OR |
| "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "cortex-m55") |
| set(FLOAT hard) |
| else() |
| set(FLOAT soft) |
| endif() |
| |
| if (FLOAT) |
| add_compile_options(-mfloat-abi=${FLOAT}) |
| add_link_options(-mfloat-abi=${FLOAT}) |
| endif() |
| |
| # Compilation warnings |
| add_compile_options( |
| -Wall |
| -Wextra |
| -Wsign-compare |
| -Wunused |
| -Wswitch-default |
| -Wformat |
| -Wdouble-promotion |
| -Wredundant-decls |
| -Wshadow |
| -Wcast-align |
| -Wnull-dereference |
| -Wno-format-extra-args |
| -Wno-unused-function |
| -Wno-unused-parameter |
| -Wno-unused-label |
| -Wno-missing-field-initializers |
| -Wno-return-type) |