diff options
Diffstat (limited to 'cmake/toolchain/arm-none-eabi-gcc.cmake')
| -rw-r--r-- | cmake/toolchain/arm-none-eabi-gcc.cmake | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/cmake/toolchain/arm-none-eabi-gcc.cmake b/cmake/toolchain/arm-none-eabi-gcc.cmake new file mode 100644 index 0000000..ea95eef --- /dev/null +++ b/cmake/toolchain/arm-none-eabi-gcc.cmake @@ -0,0 +1,91 @@ +# +# Copyright (c) 2020 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. +# + +if (NOT TARGET_CPU) + set(TARGET_CPU "cortex-m4") +endif() + +set(CMAKE_SYSTEM_NAME Generic) +set(CMAKE_C_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 + "$<$<COMPILE_LANGUAGE:CXX>:-fno-unwind-tables;-fno-rtti;-fno-exceptions>") + +# 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) |