mirror of https://github.com/ARMmbed/mbed-os.git
152 lines
6.5 KiB
CMake
152 lines
6.5 KiB
CMake
# Copyright (c) 2020 ARM Limited. All rights reserved.
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# SPDX-License-Identifier: Apache-2.0
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# Generate a file containing compile definitions
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function(mbed_generate_options_for_linker target output_response_file_path)
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set(_compile_definitions
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"$<TARGET_PROPERTY:${target},INTERFACE_COMPILE_DEFINITIONS>"
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)
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# Append -D to all macros and quote them as we pass these as response file to cxx compiler
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set(_compile_definitions
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"$<$<BOOL:${_compile_definitions}>:'-D$<JOIN:${_compile_definitions},' '-D>'>"
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)
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file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/compile_time_defs.txt" CONTENT "${_compile_definitions}\n")
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set(${output_response_file_path} @${CMAKE_CURRENT_BINARY_DIR}/compile_time_defs.txt PARENT_SCOPE)
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endfunction()
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# Backward compatibility with older CMake which uses CMAKE_SYSTEM_PROCESSOR to
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# automatically add compile and link options for the Arm Compiler.
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# Note: From version 3.21, CMake by default (policy CMP0123 set to NEW) does not
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# use this macro anymore, and projects have full control over compile and link
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# options. This is because the old algorithm based on CMAKE_SYSTEM_PROCESSOR
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# is too restrictive and does not support things like Cortex-M33.no_dsp.no_fp.
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if(MBED_TOOLCHAIN STREQUAL "ARM")
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if(NOT POLICY CMP0123)
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# Old versions of CMake do not have CMP0123.
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# In the future, support for old versions of CMake will be
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# dropped from Mbed OS.
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set(deprecated_system_processor ON)
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else()
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cmake_policy(GET CMP0123 policy_CMP0123)
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if("${policy_CMP0123}" STREQUAL "")
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# CMP0123 is unset if an old `cmake_minimum_required()` is used with a
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# new CMake. Enable new CMP0123 to take advantage of the improvement
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# and dismiss deprecation warnings from CMake.
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cmake_policy(SET CMP0123 NEW)
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elseif("${policy_CMP0123}" STREQUAL "OLD")
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# Respect old CMP0123 forced by user application
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set(deprecated_system_processor ON)
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endif()
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endif()
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endif()
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if(deprecated_system_processor)
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if (MBED_CPU_CORE STREQUAL Cortex-A9)
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set(CMAKE_SYSTEM_PROCESSOR cortex-a9)
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elseif (MBED_CPU_CORE STREQUAL Cortex-A5)
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set(CMAKE_SYSTEM_PROCESSOR cortex-a5)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M0+)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m0plus)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M0)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m0)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M1)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m1)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M23-NS)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m23)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M23)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m23)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M3)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m3)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M33-NS)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m33)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M33)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m33)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M33F-NS)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m33)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M33F)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m33)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M33FE-NS)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m33)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M33FE)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m33)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M4)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m4)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M4F)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m4)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M55)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m55)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M7)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m7)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M7F)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m7)
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elseif (MBED_CPU_CORE STREQUAL Cortex-M7FD)
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set(CMAKE_SYSTEM_PROCESSOR cortex-m7)
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endif()
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endif()
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# Compiler setup
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set(CMAKE_SYSTEM_NAME Generic)
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set(CMAKE_CROSSCOMPILING TRUE)
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# Clear toolchains options for all languages as Mbed OS uses
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# different initialisation options (such as for optimization and debug symbols)
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set(CMAKE_C_FLAGS_DEBUG "" CACHE STRING "" FORCE)
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set(CMAKE_C_FLAGS_RELEASE "" CACHE STRING "" FORCE)
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "" CACHE STRING "" FORCE)
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set(CMAKE_CXX_FLAGS_DEBUG "" CACHE STRING "" FORCE)
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set(CMAKE_CXX_FLAGS_RELEASE "" CACHE STRING "" FORCE)
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "" CACHE STRING "" FORCE)
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set(CMAKE_ASM_FLAGS_DEBUG "" CACHE STRING "" FORCE)
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set(CMAKE_ASM_FLAGS_RELEASE "" CACHE STRING "" FORCE)
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set(CMAKE_ASM_FLAGS_RELWITHDEBINFO "" CACHE STRING "" FORCE)
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# Use response files always
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set(CMAKE_ASM_USE_RESPONSE_FILE_FOR_INCLUDES 1)
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set(CMAKE_C_USE_RESPONSE_FILE_FOR_INCLUDES 1)
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set(CMAKE_CXX_USE_RESPONSE_FILE_FOR_INCLUDES 1)
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set(CMAKE_ASM_USE_RESPONSE_FILE_FOR_OBJECTS 1)
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set(CMAKE_C_USE_RESPONSE_FILE_FOR_OBJECTS 1)
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set(CMAKE_CXX_USE_RESPONSE_FILE_FOR_OBJECTS 1)
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set(CMAKE_ASM_USE_RESPONSE_FILE_FOR_LIBRARIES 1)
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set(CMAKE_C_USE_RESPONSE_FILE_FOR_LIBRARIES 1)
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set(CMAKE_CXX_USE_RESPONSE_FILE_FOR_LIBRARIES 1)
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# Set basic compiler and linker flags.
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# Also load some utility functions for setting the toolchain options.
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set(link_options "")
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set(common_options "")
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set(c_cxx_compile_options "") # compile options only for C/CXX
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set(asm_compile_options "") # compile options only for ASM
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include(toolchains/${MBED_TOOLCHAIN})
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set(MBED_CPU_CORE_TAG ${MBED_CPU_CORE})
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if (MBED_CPU_CORE MATCHES "Cortex-A[0-9]+$")
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set(MBED_CPU_CORE_TAG "Cortex-A")
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string(REPLACE "Cortex-" "" MBED_CPU_CORE_CODE "${MBED_CPU_CORE}")
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endif()
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include(cores/${MBED_CPU_CORE_TAG})
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#converts a list into a string with each of its elements seperated by a space
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macro(list_to_space_separated OUTPUT_VAR)# 2nd arg: LIST...
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string(REPLACE ";" " " ${OUTPUT_VAR} "${ARGN}")
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endmacro(list_to_space_separated)
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# set toolchain flags with CMake (INIT variables will be picked up on first run)
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list_to_space_separated(CMAKE_C_FLAGS_INIT ${common_options} ${c_cxx_compile_options})
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set(CMAKE_CXX_FLAGS_INIT ${CMAKE_C_FLAGS_INIT})
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list_to_space_separated(CMAKE_ASM_FLAGS_INIT ${common_options} ${asm_compile_options})
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list_to_space_separated(CMAKE_EXE_LINKER_FLAGS_INIT ${link_options})
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# due to a bug in ARMClang CMake compiler file, all _INIT flags must end with a space.
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# (this line: https://github.com/Kitware/CMake/blob/7d4a6ce714a9213ffd34b13a3debcb31a2430e04/Modules/Compiler/ARMClang.cmake#L97)
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set(CMAKE_C_FLAGS_INIT "${CMAKE_C_FLAGS_INIT} ")
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set(CMAKE_CXX_FLAGS_INIT "${CMAKE_CXX_FLAGS_INIT} ")
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set(CMAKE_ASM_FLAGS_INIT "${CMAKE_ASM_FLAGS_INIT} ")
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