Testing new arm-zephyr-eabi-gcc.cmake file

Author: BujSet

examples/arm/ethos-u-setup/arm-zephyr-eabi-gcc.cmake

@@ -0,0 +1,103 @@
+#
+# Copyright (c) 2020-2022 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.
+#
+
+# Copied this file from core_platform/cmake/toolchain/arm-non-eabi-gcc.cmake And
+# modified to align better with cs300 platform
+
+set(TARGET_CPU
+    "cortex-m55"
+    CACHE STRING "Target CPU"
+)
+string(TOLOWER ${TARGET_CPU} CMAKE_SYSTEM_PROCESSOR)
+
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_C_COMPILER "arm-zephyr-eabi-gcc")
+set(CMAKE_CXX_COMPILER "arm-zephyr-eabi-g++")
+set(CMAKE_ASM_COMPILER "arm-zephyr-eabi-gcc")
+set(CMAKE_LINKER "arm-zephyr-eabi-ld")
+
+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 11)
+set(CMAKE_CXX_STANDARD 17)
+
+set(GCC_CPU ${CMAKE_SYSTEM_PROCESSOR})
+string(REPLACE "cortex-m85" "cortex-m55" GCC_CPU ${GCC_CPU})
+
+# Compile options
+add_compile_options(
+  -mcpu=${GCC_CPU} -mthumb "$<$<CONFIG:DEBUG>:-gdwarf-3>"
+  "$<$<COMPILE_LANGUAGE:CXX>:-fno-unwind-tables;-fno-rtti;-fno-exceptions>"
+  -fdata-sections -ffunction-sections
+)
+
+# Compile defines
+add_compile_definitions("$<$<NOT:$<CONFIG:DEBUG>>:NDEBUG>")
+
+# Link options
+add_link_options(-mcpu=${GCC_CPU} -mthumb)
+
+if(SEMIHOSTING)
+  add_link_options(--specs=rdimon.specs)
+else()
+  add_link_options(--specs=nosys.specs)
+endif()
+
+# Set floating point unit
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "\\+fp")
+  set(FLOAT hard)
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "\\+nofp")
+  set(FLOAT soft)
+elseif(
+  CMAKE_SYSTEM_PROCESSOR MATCHES "cortex-m33(\\+|$)"
+  OR CMAKE_SYSTEM_PROCESSOR MATCHES "cortex-m55(\\+|$)"
+  OR CMAKE_SYSTEM_PROCESSOR MATCHES "cortex-m85(\\+|$)"
+)
+  set(FLOAT hard)
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "cortex-m4(\\+|$)"
+       OR CMAKE_SYSTEM_PROCESSOR MATCHES "cortex-m7(\\+|$)"
+)
+  set(FLOAT hard)
+  set(FPU_CONFIG "fpv4-sp-d16")
+  add_compile_options(-mfpu=${FPU_CONFIG})
+  add_link_options(-mfpu=${FPU_CONFIG})
+else()
+  set(FLOAT soft)
+endif()
+
+if(FLOAT)
+  add_compile_options(-mfloat-abi=${FLOAT})
+  add_link_options(-mfloat-abi=${FLOAT})
+endif()
+
+add_link_options(LINKER:--nmagic,--gc-sections)
+
+# Compilation warnings
+add_compile_options(
+  # -Wall -Wextra -Wcast-align -Wdouble-promotion -Wformat
+  # -Wmissing-field-initializers -Wnull-dereference -Wredundant-decls -Wshadow
+  # -Wswitch -Wswitch-default -Wunused -Wno-redundant-decls
+  -Wno-error=deprecated-declarations
+  -Wno-error=shift-count-overflow
+  -Wno-psabi
+)