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#-------------------------------------------------------------------------------
# Copyright (c) 2020, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
#-------------------------------------------------------------------------------
#This file contains settings to specify how ARMCLANG shall be used
#Include some dependencies
Include(Common/CompilerArmClangCommon)
Include(Common/Utils)
check_armclang_input_vars("6.13")
if(NOT DEFINED ARM_CPU_ARCHITECTURE)
set(_NO_ARM_CPU_ARCHITECTURE true)
elseif (${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv8-M.BASE")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-march=" VAL "-march=armv8-m.base")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-march=" VAL "-march=armv8-m.base")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu=" VAL "--cpu=8-M.Base")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu=" VAL "--cpu=8-M.Base")
elseif(${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv8-M.MAIN")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-march=" VAL "-march=armv8-m.main")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-march=" VAL "-march=armv8-m.main")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu=" VAL "--cpu=8-M.Main")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu=" VAL "--cpu=8-M.Main")
elseif(${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv7-M")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-march=" VAL "-march=armv7-m")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-march=" VAL "-march=armv7-m")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu=" VAL "--cpu=7-M")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu=" VAL "--cpu=7-M")
elseif (${ARM_CPU_ARCHITECTURE} STREQUAL "ARMv6-M")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-march=" VAL "-march=armv6-m")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-march=" VAL "-march=armv6-m")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu=" VAL "--cpu=6-M")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu=" VAL "--cpu=6-M")
else()
message(FATAL_ERROR "Unknown or unsupported ARM cpu architecture setting.")
endif()
#Prefer architecture definition over cpu type.
if(NOT DEFINED ARM_CPU_ARCHITECTURE)
if(NOT DEFINED ARM_CPU_TYPE)
string_append_unique_item(_NO_ARM_CPU_TYPE true)
elseif(${ARM_CPU_TYPE} STREQUAL "Cortex-M3")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-mcpu=" VAL "-mcpu=cortex-m3")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-mcpu=" VAL "-mcpu=cortex-m3")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu" VAL "--cpu=Cortex-M3")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu" VAL "--cpu=Cortex-M3")
elseif(${ARM_CPU_TYPE} STREQUAL "Cortex-M33")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-mcpu=" VAL "-mcpu=cortex-m33")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-mcpu=" VAL "-mcpu=cortex-m33")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu" VAL "--cpu=Cortex-M33")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu" VAL "--cpu=Cortex-M33")
elseif(${ARM_CPU_TYPE} STREQUAL "Cortex-M23")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-mcpu=" VAL "-mcpu=cortex-m23")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-mcpu=" VAL "-mcpu=cortex-m23")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu" VAL "--cpu=Cortex-M23")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu" VAL "--cpu=Cortex-M23")
elseif(${ARM_CPU_TYPE} STREQUAL "Cortex-M4")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-march=" VAL "-march=armv7-m")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-march=" VAL "-march=armv7-m")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu=" VAL "--cpu=Cortex-M4")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu=" VAL "--cpu=Cortex-M4")
set(ARM_CPU_ARCHITECTURE "ARMv7-M")
elseif(${ARM_CPU_TYPE} STREQUAL "Cortex-M0p")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_C_FLAGS_CPU KEY "-march=" VAL "-march=armv6-m")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "--target=" VAL "--target=arm-arm-none-eabi")
string_append_unique_item(STRING CMAKE_CXX_FLAGS_CPU KEY "-march=" VAL "-march=armv6-m")
string_append_unique_item(STRING CMAKE_ASM_FLAGS_CPU KEY "--cpu=" VAL "--cpu=Cortex-M0plus")
string_append_unique_item(STRING CMAKE_LINK_FLAGS_CPU KEY "--cpu=" VAL "--cpu=Cortex-M0plus")
set(ARM_CPU_ARCHITECTURE "ARMv6-M")
else()
message(FATAL_ERROR "Unknown ARM cpu setting.")
endif()
endif()
if (_NO_ARM_CPU_TYPE AND _NO_ARM_CPU_ARCHITECTURE)
message(FATAL_ERROR "Can not set CPU specific compiler flags: neither the ARM CPU type nor the architecture is set.")
endif()
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