platform/ns/toolchain_ns_GNUARM.cmake - TF-M/trusted-firmware-m - TrustedFirmware Git Browser

 #-------------------------------------------------------------------------------
 # SPDX-FileCopyrightText: Copyright The TrustedFirmware-M Contributors
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
 #-------------------------------------------------------------------------------

 set(CMAKE_SYSTEM_NAME Generic)

 set(CMAKE_C_COMPILER_FORCED TRUE)
 set(CMAKE_CXX_COMPILER_FORCED TRUE)

 if(NOT DEFINED CROSS_COMPILE)
     set(CROSS_COMPILE    arm-none-eabi CACHE STRING "Cross-compiler prefix")
 endif()

 find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}-gcc)
 find_program(CMAKE_CXX_COMPILER ${CROSS_COMPILE}-g++)

 if(CMAKE_C_COMPILER STREQUAL "CMAKE_C_COMPILER-NOTFOUND")
     message(FATAL_ERROR "Could not find compiler: '${CROSS_COMPILE}-gcc'")
 endif()

 if(CMAKE_CXX_COMPILER STREQUAL "CMAKE_CXX_COMPILER-NOTFOUND")
     message(FATAL_ERROR "Could not find compiler: '${CROSS_COMPILE}-g++'")
 endif()

 set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})

 # Set compiler ID explicitly as it's not detected at this moment
 set(CMAKE_C_COMPILER_ID GNU)

 # This variable name is a bit of a misnomer. The file it is set to is included
 # at a particular step in the compiler initialisation. It is used here to
 # configure the extensions for object files. Despite the name, it also works
 # with the Ninja generator.
 set(CMAKE_USER_MAKE_RULES_OVERRIDE ${CMAKE_CURRENT_LIST_DIR}/set_extensions.cmake)

 # CMAKE_C_COMPILER_VERSION is not guaranteed to be defined.
 EXECUTE_PROCESS( COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION )

 # ===================== Set toolchain CPU and Arch =============================

 if (DEFINED TFM_SYSTEM_PROCESSOR)
     if(TFM_SYSTEM_PROCESSOR MATCHES "cortex-m85" AND GCC_VERSION VERSION_LESS "13.0.0")
         # GNUARM until version 13 does not support the -mcpu=cortex-m85 flag
         message(WARNING "Cortex-m85 is only supported from GCC13. "
                         "Falling back to -march usage for earlier versions.")
     else()
         set(CMAKE_SYSTEM_PROCESSOR ${TFM_SYSTEM_PROCESSOR})

         if (DEFINED TFM_SYSTEM_DSP)
             if (NOT TFM_SYSTEM_DSP)
                 string(APPEND CMAKE_SYSTEM_PROCESSOR "+nodsp")
             endif()
         endif()
         # GCC specifies that '+nofp' is available on following M-profile cpus: 'cortex-m4',
         # 'cortex-m7', 'cortex-m33', 'cortex-m35p', 'cortex-m55' and 'cortex-m85'.
         # Build fails if other M-profile cpu, such as 'cortex-m23', is added with '+nofp'.
         # Explicitly list those cpu to align with GCC description.
         if(GCC_VERSION VERSION_GREATER_EQUAL "8.0.0")
             if(NOT CONFIG_TFM_ENABLE_FP AND
                 (TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m4"
                 OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m7"
                 OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m33"
                 OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m35p"
                 OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m55"
                 OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m85"))
                     string(APPEND CMAKE_SYSTEM_PROCESSOR "+nofp")
             endif()
         endif()

         if(TFM_SYSTEM_ARCHITECTURE STREQUAL "armv8.1-m.main")
             if(NOT CONFIG_TFM_ENABLE_MVE)
                 string(APPEND CMAKE_SYSTEM_PROCESSOR "+nomve")
             endif()
             if(NOT CONFIG_TFM_ENABLE_MVE_FP)
                 string(APPEND CMAKE_SYSTEM_PROCESSOR "+nomve.fp")
             endif()
         endif()
     endif()

 endif()

 # CMAKE_SYSTEM_ARCH variable is not a built-in CMAKE variable. It is used to
 # set the compile and link flags when TFM_SYSTEM_PROCESSOR is not specified.
 # The variable name is choosen to align with the ARMCLANG toolchain file.
 set(CMAKE_SYSTEM_ARCH         ${TFM_SYSTEM_ARCHITECTURE})

 if(TFM_SYSTEM_ARCHITECTURE STREQUAL "armv8.1-m.main")
     if(CONFIG_TFM_ENABLE_MVE)
         string(APPEND CMAKE_SYSTEM_ARCH "+mve")
     endif()
     if(CONFIG_TFM_ENABLE_MVE_FP)
         string(APPEND CMAKE_SYSTEM_ARCH "+mve.fp")
     endif()
 endif()

 if (DEFINED TFM_SYSTEM_DSP)
     # +nodsp modifier is only supported from GCC version 8.
     if(GCC_VERSION VERSION_GREATER_EQUAL "8.0.0")
         # armv8.1-m.main arch does not have +nodsp option
         if ((NOT TFM_SYSTEM_ARCHITECTURE STREQUAL "armv8.1-m.main") AND
             NOT TFM_SYSTEM_DSP)
             string(APPEND CMAKE_SYSTEM_ARCH "+nodsp")
         endif()
     endif()
 endif()

 if(GCC_VERSION VERSION_GREATER_EQUAL "8.0.0")
     if(CONFIG_TFM_ENABLE_FP)
         string(APPEND CMAKE_SYSTEM_ARCH "+fp")
     endif()
 endif()

 if (GCC_VERSION VERSION_LESS 7.3.1)
     message(FATAL_ERROR "Please use newer GNU Arm compiler version starting from 7.3.1.")
 endif()

 if (GCC_VERSION VERSION_EQUAL 10.2.1)
     message(FATAL_ERROR "GNU Arm compiler version 10-2020-q4-major has an issue in CMSE support."
                         " Select other GNU Arm compiler versions instead."
                         " See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99157 for the issue detail.")
 endif()

 # GNU Arm compiler version greater equal than *11.3.Rel1*
 # has a linker issue that required system calls are missing,
 # such as _read and _write. Add stub functions of required
 # system calls to solve this issue.
 #
 # READONLY linker script attribute is not supported in older
 # GNU Arm compilers. For these version the preprocessor will
 # remove the READONLY string from the linker scripts.
 if (GCC_VERSION VERSION_GREATER_EQUAL 11.3.1)
     set(CONFIG_GNU_SYSCALL_STUB_ENABLED TRUE)
     set(CONFIG_GNU_LINKER_READONLY_ATTRIBUTE TRUE)
 endif()

 if (CMAKE_SYSTEM_PROCESSOR)
     set(CMAKE_C_FLAGS_INIT "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
     set(CMAKE_CXX_FLAGS_INIT "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
     set(CMAKE_ASM_FLAGS_INIT "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
     set(CMAKE_C_LINK_FLAGS "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
     set(CMAKE_ASM_LINK_FLAGS "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
 else()
     set(CMAKE_C_FLAGS_INIT "-march=${CMAKE_SYSTEM_ARCH}")
     set(CMAKE_CXX_FLAGS_INIT "-march=${CMAKE_SYSTEM_ARCH}")
     set(CMAKE_ASM_FLAGS_INIT "-march=${CMAKE_SYSTEM_ARCH}")
     set(CMAKE_C_LINK_FLAGS "-march=${CMAKE_SYSTEM_ARCH}")
     set(CMAKE_ASM_LINK_FLAGS "-march=${CMAKE_SYSTEM_ARCH}")
 endif()

 set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_INIT})
 set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS_INIT})
 set(CMAKE_ASM_FLAGS ${CMAKE_ASM_FLAGS_INIT})

 set(COMPILER_CP_FLAG "-mfloat-abi=soft")
 set(LINKER_CP_OPTION "-mfloat-abi=soft")

 if(CONFIG_TFM_FLOAT_ABI STREQUAL "hard")
     set(COMPILER_CP_FLAG "-mfloat-abi=hard")
     set(LINKER_CP_OPTION "-mfloat-abi=hard")
     if(CONFIG_TFM_ENABLE_FP OR CONFIG_TFM_ENABLE_MVE_FP)
         string(APPEND COMPILER_CP_FLAG " " "-mfpu=${CONFIG_TFM_FP_ARCH}")
         string(APPEND LINKER_CP_OPTION " " "-mfpu=${CONFIG_TFM_FP_ARCH}")
     endif()
 endif()

 string(APPEND CMAKE_C_FLAGS " " ${COMPILER_CP_FLAG})
 string(APPEND CMAKE_CXX_FLAGS " " ${COMPILER_CP_FLAG})
 string(APPEND CMAKE_ASM_FLAGS " " ${COMPILER_CP_FLAG})
 string(APPEND CMAKE_C_LINK_FLAGS " " ${LINKER_CP_OPTION})
 string(APPEND CMAKE_CXX_LINK_FLAGS " " ${LINKER_CP_OPTION})
 string(APPEND CMAKE_ASM_LINK_FLAGS " " ${LINKER_CP_OPTION})

 # For GNU Arm Embedded Toolchain doesn't emit __ARM_ARCH_8_1M_MAIN__, adding this macro manually.
 add_compile_definitions($<$<STREQUAL:${TFM_SYSTEM_ARCHITECTURE},armv8.1-m.main>:__ARM_ARCH_8_1M_MAIN__=1>)

 add_compile_options(
     -specs=nano.specs
     -specs=nosys.specs
     -Wall
     -Wno-format
     -Wno-return-type
     -Wno-unused-but-set-variable
     -c
     -fdata-sections
     -ffunction-sections
     -fno-builtin
     -fshort-enums
     -funsigned-char
     -fmacro-prefix-map=${CMAKE_SOURCE_DIR}/=
     -mthumb
     $<$<COMPILE_LANGUAGE:C>:-std=c99>
     $<$<COMPILE_LANGUAGE:CXX>:-std=c++11>
     $<$<AND:$<COMPILE_LANGUAGE:C>,$<BOOL:${TFM_DEBUG_SYMBOLS}>>:-g>
     $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<BOOL:${TFM_DEBUG_SYMBOLS}>>:-g>
     $<$<AND:$<COMPILE_LANGUAGE:C,CXX>,$<BOOL:${CONFIG_TFM_WARNINGS_ARE_ERRORS}>>:-Werror>
 )

 add_link_options(
     --entry=Reset_Handler
     -specs=nano.specs
     -specs=nosys.specs
     LINKER:-check-sections
     LINKER:-fatal-warnings
     LINKER:--gc-sections
     LINKER:--no-wchar-size-warning
     LINKER:--print-memory-usage
 )

 # Specify the linker script used to link `target`.
 # Behaviour for handling linker scripts is so wildly divergent between compilers
 # that this macro is required.
 #
 # Vendor platform can set a linker script as property INTERFACE_LINK_DEPENDS of platform_ns.
 # `target` can fetch the linker script from platform_ns.
 #
 # Alternatively, NS build can call target_add_scatter_file() with the install directory of
 # linker script.
 #     target_add_scatter_file(target, install_dir)
 #
 # target_add_scatter_file() fetch a linker script from the install directory.
 macro(target_add_scatter_file target)

     get_target_property(scatter_file
                         platform_ns
                         INTERFACE_LINK_DEPENDS
     )

     # If scatter_file is not passed from platform_ns
     # Try if any linker script is exported in install directory
     # The intall directory is passed as an optinal argument
     if(${scatter_file} STREQUAL "scatter_file-NOTFOUND")
         set(install_dir ${ARGN})
         list(LENGTH install_dir nr_install_dir)

         # If nr_install_dir == 1, search for sct file under install dir
         if(${nr_install_dir} EQUAL 1)
             file(GLOB scatter_file "${install_dir}/*.ld")
         endif()
     endif()

     if(NOT EXISTS ${scatter_file})
         message(FATAL_ERROR "Unable to find NS scatter file ${scatter_file}")
     endif()

     add_library(${target}_scatter OBJECT)
     target_sources(${target}_scatter
         PRIVATE
             ${scatter_file}
     )

     set_source_files_properties(${scatter_file} PROPERTIES
         LANGUAGE C
         KEEP_EXTENSION True)

     target_compile_options(${target}_scatter
         PRIVATE
             -E
             -P
             -xc
     )

     target_compile_definitions(${target}_scatter
         PRIVATE
             $<$<NOT:$<BOOL:${CONFIG_GNU_LINKER_READONLY_ATTRIBUTE}>>:READONLY=>
     )

     target_link_libraries(${target}_scatter
         PRIVATE
             platform_region_defs
     )

     add_dependencies(${target} ${target}_scatter)

     target_link_options(${target}
         PRIVATE
             -T $<TARGET_OBJECTS:${target}_scatter>
     )

 endmacro()

 macro(add_convert_to_bin_target target)
     get_target_property(bin_dir ${target} RUNTIME_OUTPUT_DIRECTORY)

     add_custom_target(${target}_bin
         SOURCES ${bin_dir}/${target}.bin
     )
     add_custom_command(OUTPUT ${bin_dir}/${target}.bin
         DEPENDS ${target}
         COMMAND ${CMAKE_OBJCOPY}
             -O binary $<TARGET_FILE:${target}>
             ${bin_dir}/${target}.bin
     )

     add_custom_target(${target}_elf
         SOURCES ${bin_dir}/${target}.elf
     )
     add_custom_command(OUTPUT ${bin_dir}/${target}.elf
         DEPENDS ${target}
         COMMAND ${CMAKE_OBJCOPY}
             -O elf32-littlearm $<TARGET_FILE:${target}>
             ${bin_dir}/${target}.elf
     )

     add_custom_target(${target}_hex
         SOURCES ${bin_dir}/${target}.hex
     )
     add_custom_command(OUTPUT ${bin_dir}/${target}.hex
         DEPENDS ${target}
         COMMAND ${CMAKE_OBJCOPY}
             -O ihex $<TARGET_FILE:${target}>
             ${bin_dir}/${target}.hex
     )

     add_custom_target(${target}_binaries
         ALL
         DEPENDS ${target}_bin
         DEPENDS ${target}_elf
         DEPENDS ${target}_hex
     )
 endmacro()
	#-------------------------------------------------------------------------------
	# SPDX-FileCopyrightText: Copyright The TrustedFirmware-M Contributors
	#
	# SPDX-License-Identifier: BSD-3-Clause
	#
	#-------------------------------------------------------------------------------

	set(CMAKE_SYSTEM_NAME Generic)

	set(CMAKE_C_COMPILER_FORCED TRUE)
	set(CMAKE_CXX_COMPILER_FORCED TRUE)

	if(NOT DEFINED CROSS_COMPILE)
	set(CROSS_COMPILE arm-none-eabi CACHE STRING "Cross-compiler prefix")
	endif()

	find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}-gcc)
	find_program(CMAKE_CXX_COMPILER ${CROSS_COMPILE}-g++)

	if(CMAKE_C_COMPILER STREQUAL "CMAKE_C_COMPILER-NOTFOUND")
	message(FATAL_ERROR "Could not find compiler: '${CROSS_COMPILE}-gcc'")
	endif()

	if(CMAKE_CXX_COMPILER STREQUAL "CMAKE_CXX_COMPILER-NOTFOUND")
	message(FATAL_ERROR "Could not find compiler: '${CROSS_COMPILE}-g++'")
	endif()

	set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})

	# Set compiler ID explicitly as it's not detected at this moment
	set(CMAKE_C_COMPILER_ID GNU)

	# This variable name is a bit of a misnomer. The file it is set to is included
	# at a particular step in the compiler initialisation. It is used here to
	# configure the extensions for object files. Despite the name, it also works
	# with the Ninja generator.
	set(CMAKE_USER_MAKE_RULES_OVERRIDE ${CMAKE_CURRENT_LIST_DIR}/set_extensions.cmake)

	# CMAKE_C_COMPILER_VERSION is not guaranteed to be defined.
	EXECUTE_PROCESS( COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION )

	# ===================== Set toolchain CPU and Arch =============================

	if (DEFINED TFM_SYSTEM_PROCESSOR)
	if(TFM_SYSTEM_PROCESSOR MATCHES "cortex-m85" AND GCC_VERSION VERSION_LESS "13.0.0")
	# GNUARM until version 13 does not support the -mcpu=cortex-m85 flag
	message(WARNING "Cortex-m85 is only supported from GCC13. "
	"Falling back to -march usage for earlier versions.")
	else()
	set(CMAKE_SYSTEM_PROCESSOR ${TFM_SYSTEM_PROCESSOR})

	if (DEFINED TFM_SYSTEM_DSP)
	if (NOT TFM_SYSTEM_DSP)
	string(APPEND CMAKE_SYSTEM_PROCESSOR "+nodsp")
	endif()
	endif()
	# GCC specifies that '+nofp' is available on following M-profile cpus: 'cortex-m4',
	# 'cortex-m7', 'cortex-m33', 'cortex-m35p', 'cortex-m55' and 'cortex-m85'.
	# Build fails if other M-profile cpu, such as 'cortex-m23', is added with '+nofp'.
	# Explicitly list those cpu to align with GCC description.
	if(GCC_VERSION VERSION_GREATER_EQUAL "8.0.0")
	if(NOT CONFIG_TFM_ENABLE_FP AND
	(TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m4"
	OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m7"
	OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m33"
	OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m35p"
	OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m55"
	OR TFM_SYSTEM_PROCESSOR STREQUAL "cortex-m85"))
	string(APPEND CMAKE_SYSTEM_PROCESSOR "+nofp")
	endif()
	endif()

	if(TFM_SYSTEM_ARCHITECTURE STREQUAL "armv8.1-m.main")
	if(NOT CONFIG_TFM_ENABLE_MVE)
	string(APPEND CMAKE_SYSTEM_PROCESSOR "+nomve")
	endif()
	if(NOT CONFIG_TFM_ENABLE_MVE_FP)
	string(APPEND CMAKE_SYSTEM_PROCESSOR "+nomve.fp")
	endif()
	endif()
	endif()

	endif()

	# CMAKE_SYSTEM_ARCH variable is not a built-in CMAKE variable. It is used to
	# set the compile and link flags when TFM_SYSTEM_PROCESSOR is not specified.
	# The variable name is choosen to align with the ARMCLANG toolchain file.
	set(CMAKE_SYSTEM_ARCH ${TFM_SYSTEM_ARCHITECTURE})

	if(TFM_SYSTEM_ARCHITECTURE STREQUAL "armv8.1-m.main")
	if(CONFIG_TFM_ENABLE_MVE)
	string(APPEND CMAKE_SYSTEM_ARCH "+mve")
	endif()
	if(CONFIG_TFM_ENABLE_MVE_FP)
	string(APPEND CMAKE_SYSTEM_ARCH "+mve.fp")
	endif()
	endif()

	if (DEFINED TFM_SYSTEM_DSP)
	# +nodsp modifier is only supported from GCC version 8.
	if(GCC_VERSION VERSION_GREATER_EQUAL "8.0.0")
	# armv8.1-m.main arch does not have +nodsp option
	if ((NOT TFM_SYSTEM_ARCHITECTURE STREQUAL "armv8.1-m.main") AND
	NOT TFM_SYSTEM_DSP)
	string(APPEND CMAKE_SYSTEM_ARCH "+nodsp")
	endif()
	endif()
	endif()

	if(GCC_VERSION VERSION_GREATER_EQUAL "8.0.0")
	if(CONFIG_TFM_ENABLE_FP)
	string(APPEND CMAKE_SYSTEM_ARCH "+fp")
	endif()
	endif()

	if (GCC_VERSION VERSION_LESS 7.3.1)
	message(FATAL_ERROR "Please use newer GNU Arm compiler version starting from 7.3.1.")
	endif()

	if (GCC_VERSION VERSION_EQUAL 10.2.1)
	message(FATAL_ERROR "GNU Arm compiler version 10-2020-q4-major has an issue in CMSE support."
	" Select other GNU Arm compiler versions instead."
	" See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99157 for the issue detail.")
	endif()

	# GNU Arm compiler version greater equal than 11.3.Rel1
	# has a linker issue that required system calls are missing,
	# such as _read and _write. Add stub functions of required
	# system calls to solve this issue.
	#
	# READONLY linker script attribute is not supported in older
	# GNU Arm compilers. For these version the preprocessor will
	# remove the READONLY string from the linker scripts.
	if (GCC_VERSION VERSION_GREATER_EQUAL 11.3.1)
	set(CONFIG_GNU_SYSCALL_STUB_ENABLED TRUE)
	set(CONFIG_GNU_LINKER_READONLY_ATTRIBUTE TRUE)
	endif()

	if (CMAKE_SYSTEM_PROCESSOR)
	set(CMAKE_C_FLAGS_INIT "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
	set(CMAKE_CXX_FLAGS_INIT "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
	set(CMAKE_ASM_FLAGS_INIT "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
	set(CMAKE_C_LINK_FLAGS "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
	set(CMAKE_ASM_LINK_FLAGS "-mcpu=${CMAKE_SYSTEM_PROCESSOR}")
	else()
	set(CMAKE_C_FLAGS_INIT "-march=${CMAKE_SYSTEM_ARCH}")
	set(CMAKE_CXX_FLAGS_INIT "-march=${CMAKE_SYSTEM_ARCH}")
	set(CMAKE_ASM_FLAGS_INIT "-march=${CMAKE_SYSTEM_ARCH}")
	set(CMAKE_C_LINK_FLAGS "-march=${CMAKE_SYSTEM_ARCH}")
	set(CMAKE_ASM_LINK_FLAGS "-march=${CMAKE_SYSTEM_ARCH}")
	endif()

	set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_INIT})
	set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS_INIT})
	set(CMAKE_ASM_FLAGS ${CMAKE_ASM_FLAGS_INIT})

	set(COMPILER_CP_FLAG "-mfloat-abi=soft")
	set(LINKER_CP_OPTION "-mfloat-abi=soft")

	if(CONFIG_TFM_FLOAT_ABI STREQUAL "hard")
	set(COMPILER_CP_FLAG "-mfloat-abi=hard")
	set(LINKER_CP_OPTION "-mfloat-abi=hard")
	if(CONFIG_TFM_ENABLE_FP OR CONFIG_TFM_ENABLE_MVE_FP)
	string(APPEND COMPILER_CP_FLAG " " "-mfpu=${CONFIG_TFM_FP_ARCH}")
	string(APPEND LINKER_CP_OPTION " " "-mfpu=${CONFIG_TFM_FP_ARCH}")
	endif()
	endif()

	string(APPEND CMAKE_C_FLAGS " " ${COMPILER_CP_FLAG})
	string(APPEND CMAKE_CXX_FLAGS " " ${COMPILER_CP_FLAG})
	string(APPEND CMAKE_ASM_FLAGS " " ${COMPILER_CP_FLAG})
	string(APPEND CMAKE_C_LINK_FLAGS " " ${LINKER_CP_OPTION})
	string(APPEND CMAKE_CXX_LINK_FLAGS " " ${LINKER_CP_OPTION})
	string(APPEND CMAKE_ASM_LINK_FLAGS " " ${LINKER_CP_OPTION})

	# For GNU Arm Embedded Toolchain doesn't emit __ARM_ARCH_8_1M_MAIN__, adding this macro manually.
	add_compile_definitions($<$<STREQUAL:${TFM_SYSTEM_ARCHITECTURE},armv8.1-m.main>:__ARM_ARCH_8_1M_MAIN__=1>)

	add_compile_options(
	-specs=nano.specs
	-specs=nosys.specs
	-Wall
	-Wno-format
	-Wno-return-type
	-Wno-unused-but-set-variable
	-c
	-fdata-sections
	-ffunction-sections
	-fno-builtin
	-fshort-enums
	-funsigned-char
	-fmacro-prefix-map=${CMAKE_SOURCE_DIR}/=
	-mthumb
	$<$<COMPILE_LANGUAGE:C>:-std=c99>
	$<$<COMPILE_LANGUAGE:CXX>:-std=c++11>
	$<$<AND:$<COMPILE_LANGUAGE:C>,$<BOOL:${TFM_DEBUG_SYMBOLS}>>:-g>
	$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<BOOL:${TFM_DEBUG_SYMBOLS}>>:-g>
	$<$<AND:$<COMPILE_LANGUAGE:C,CXX>,$<BOOL:${CONFIG_TFM_WARNINGS_ARE_ERRORS}>>:-Werror>
	)

	add_link_options(
	--entry=Reset_Handler
	-specs=nano.specs
	-specs=nosys.specs
	LINKER:-check-sections
	LINKER:-fatal-warnings
	LINKER:--gc-sections
	LINKER:--no-wchar-size-warning
	LINKER:--print-memory-usage
	)

	# Specify the linker script used to link `target`.
	# Behaviour for handling linker scripts is so wildly divergent between compilers
	# that this macro is required.
	#
	# Vendor platform can set a linker script as property INTERFACE_LINK_DEPENDS of platform_ns.
	# `target` can fetch the linker script from platform_ns.
	#
	# Alternatively, NS build can call target_add_scatter_file() with the install directory of
	# linker script.
	# target_add_scatter_file(target, install_dir)
	#
	# target_add_scatter_file() fetch a linker script from the install directory.
	macro(target_add_scatter_file target)

	get_target_property(scatter_file
	platform_ns
	INTERFACE_LINK_DEPENDS
	)

	# If scatter_file is not passed from platform_ns
	# Try if any linker script is exported in install directory
	# The intall directory is passed as an optinal argument
	if(${scatter_file} STREQUAL "scatter_file-NOTFOUND")
	set(install_dir ${ARGN})
	list(LENGTH install_dir nr_install_dir)

	# If nr_install_dir == 1, search for sct file under install dir
	if(${nr_install_dir} EQUAL 1)
	file(GLOB scatter_file "${install_dir}/*.ld")
	endif()
	endif()

	if(NOT EXISTS ${scatter_file})
	message(FATAL_ERROR "Unable to find NS scatter file ${scatter_file}")
	endif()

	add_library(${target}_scatter OBJECT)
	target_sources(${target}_scatter
	PRIVATE
	${scatter_file}
	)

	set_source_files_properties(${scatter_file} PROPERTIES
	LANGUAGE C
	KEEP_EXTENSION True)

	target_compile_options(${target}_scatter
	PRIVATE
	-E
	-P
	-xc
	)

	target_compile_definitions(${target}_scatter
	PRIVATE
	$<$<NOT:$<BOOL:${CONFIG_GNU_LINKER_READONLY_ATTRIBUTE}>>:READONLY=>
	)

	target_link_libraries(${target}_scatter
	PRIVATE
	platform_region_defs
	)

	add_dependencies(${target} ${target}_scatter)

	target_link_options(${target}
	PRIVATE
	-T $<TARGET_OBJECTS:${target}_scatter>
	)

	endmacro()

	macro(add_convert_to_bin_target target)
	get_target_property(bin_dir ${target} RUNTIME_OUTPUT_DIRECTORY)

	add_custom_target(${target}_bin
	SOURCES ${bin_dir}/${target}.bin
	)
	add_custom_command(OUTPUT ${bin_dir}/${target}.bin
	DEPENDS ${target}
	COMMAND ${CMAKE_OBJCOPY}
	-O binary $<TARGET_FILE:${target}>
	${bin_dir}/${target}.bin
	)

	add_custom_target(${target}_elf
	SOURCES ${bin_dir}/${target}.elf
	)
	add_custom_command(OUTPUT ${bin_dir}/${target}.elf
	DEPENDS ${target}
	COMMAND ${CMAKE_OBJCOPY}
	-O elf32-littlearm $<TARGET_FILE:${target}>
	${bin_dir}/${target}.elf
	)

	add_custom_target(${target}_hex
	SOURCES ${bin_dir}/${target}.hex
	)
	add_custom_command(OUTPUT ${bin_dir}/${target}.hex
	DEPENDS ${target}
	COMMAND ${CMAKE_OBJCOPY}
	-O ihex $<TARGET_FILE:${target}>
	${bin_dir}/${target}.hex
	)

	add_custom_target(${target}_binaries
	ALL
	DEPENDS ${target}_bin
	DEPENDS ${target}_elf
	DEPENDS ${target}_hex
	)
	endmacro()