| # |
| # Copyright (c) 2019-2021 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. |
| # |
| |
| if (__TOOLCHAIN_LOADED) |
| return() |
| endif() |
| set(__TOOLCHAIN_LOADED TRUE) |
| |
| set(CMAKE_SYSTEM_NAME Generic) |
| set(CMAKE_C_COMPILER "armclang") |
| set(CMAKE_CXX_COMPILER "armclang") |
| set(CMAKE_ASM_COMPILER "armclang") |
| set(CMAKE_SYSTEM_PROCESSOR "cortex-m33+nodsp" CACHE STRING "Select Cortex-M architure. (cortex-m0, cortex-m3, cortex-m33, cortex-m4, cortex-m55, cortex-m7, etc)") |
| |
| set(CMAKE_C_STANDARD 99) |
| set(CMAKE_CXX_STANDARD 11) |
| |
| # The system processor could for example be set to cortex-m33+nodsp+nofp. |
| set(__CPU_COMPILE_TARGET ${CMAKE_SYSTEM_PROCESSOR}) |
| string(REPLACE "+" ";" __CPU_FEATURES ${__CPU_COMPILE_TARGET}) |
| list(POP_FRONT __CPU_FEATURES CMAKE_SYSTEM_PROCESSOR) |
| |
| string(FIND ${__CPU_COMPILE_TARGET} "+" __OFFSET) |
| if(__OFFSET GREATER_EQUAL 0) |
| string(SUBSTRING ${__CPU_COMPILE_TARGET} ${__OFFSET} -1 CPU_FEATURES) |
| endif() |
| |
| # Add -mcpu to the compile options to override the -mcpu the CMake toolchain adds |
| add_compile_options( |
| -mcpu=${__CPU_COMPILE_TARGET} |
| "$<$<COMPILE_LANGUAGE:ASM>:-masm=auto;--target=arm-arm-none-eabi>") |
| |
| # Set floating point unit |
| if("${__CPU_COMPILE_TARGET}" MATCHES "\\+fp") |
| set(FLOAT hard) |
| elseif("${__CPU_COMPILE_TARGET}" MATCHES "\\+nofp") |
| set(FLOAT soft) |
| elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "cortex-m33" OR |
| "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "cortex-m4" OR |
| "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "cortex-m55" OR |
| "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "cortex-m7") |
| set(FLOAT hard) |
| else() |
| set(FLOAT soft) |
| endif() |
| |
| add_compile_options(-mfloat-abi=${FLOAT}) |
| #add_link_options(-mfloat-abi=${FLOAT}) |
| |
| # Link target |
| set(__CPU_LINK_TARGET ${CMAKE_SYSTEM_PROCESSOR}) |
| if("nodsp" IN_LIST __CPU_FEATURES) |
| string(APPEND __CPU_LINK_TARGET ".no_dsp") |
| endif() |
| if("nofp" IN_LIST __CPU_FEATURES) |
| string(APPEND __CPU_LINK_TARGET ".no_fp") |
| endif() |
| |
| if(CMAKE_SYSTEM_PROCESSOR STREQUAL "cortex-m55") |
| set(__CPU_LINK_TARGET 8.1-M.Main.dsp) |
| endif() |
| |
| add_link_options(--cpu=${__CPU_LINK_TARGET}) |
| add_link_options(--lto --info common,debug,sizes,totals,veneers,unused --symbols --diag_suppress=L6439W) |
| |
| # |
| # Compile options |
| # |
| |
| add_compile_options(-Wall -Wextra |
| -Wsign-compare |
| -Wunused |
| -Wswitch-default |
| -Wformat |
| -Wdouble-promotion |
| -Wredundant-decls |
| -Wshadow |
| -Wcast-align |
| -Wnull-dereference |
| -Wno-deprecated-register |
| -Wno-format-extra-args |
| -Wno-missing-field-initializers |
| -Wno-unused-function |
| -Wno-unused-label |
| -Wno-unused-parameter |
| -Wno-return-type) |
| add_compile_options(-fno-unwind-tables -fno-rtti -fno-exceptions) |
| add_compile_options(-mthumb) |
| add_compile_options("$<$<CONFIG:DEBUG>:-gdwarf-3>") |