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Diffstat (limited to 'scripts/make/cortex_m_ethos_eval_makefile.inc')
| -rw-r--r-- | scripts/make/cortex_m_ethos_eval_makefile.inc | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/scripts/make/cortex_m_ethos_eval_makefile.inc b/scripts/make/cortex_m_ethos_eval_makefile.inc new file mode 100644 index 0000000..dbb460d --- /dev/null +++ b/scripts/make/cortex_m_ethos_eval_makefile.inc @@ -0,0 +1,153 @@ +# Copyright (c) 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 +# +# http://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. + +# Generic Makefile target for ARM Cortex M builds. +# For more info see: tensorflow/lite/micro/cortex_m_generic/README.md +ifeq ($(TARGET),$(filter $(TARGET), cortex_m_ethos_eval)) + FLOAT := soft + GCC_TARGET_ARCH := $(TARGET_ARCH) + + ifeq ($(TARGET_ARCH), cortex-m0) + CORE=M0 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M0 + + else ifeq ($(TARGET_ARCH), cortex-m3) + CORE=M3 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M3 + + else ifeq ($(TARGET_ARCH), cortex-m33) + CORE=M33 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M33 + TARGET_SPECIFIC_FLAGS += -D__DSP_PRESENT=1 -D__FPU_PRESENT=1 -D__VTOR_PRESENT=1 -D__FPU_USED=1 + FLOAT=hard + + else ifeq ($(TARGET_ARCH), cortex-m33+nodsp) + CORE=M33 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M33.no_dsp.no_fp + + else ifeq ($(TARGET_ARCH), cortex-m4) + CORE=M4 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M4.no_fp + GCC_TARGET_ARCH := cortex-m4+nofp + + else ifeq ($(TARGET_ARCH), cortex-m4+fp) + CORE=M4 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M4 + TARGET_SPECIFIC_FLAGS += -D__FPU_PRESENT=1 + FLOAT=hard + GCC_TARGET_ARCH := cortex-m4 + + else ifeq ($(TARGET_ARCH), cortex-m55) + CORE=M55 + ARM_LDFLAGS := -Wl,--cpu=8.1-M.Main.mve.fp + TARGET_SPECIFIC_FLAGS += -D__DSP_PRESENT=1 -D__FPU_PRESENT=1 + FLOAT=hard + + else ifeq ($(TARGET_ARCH), cortex-m55+nodsp+nofp) + CORE=M55 + ARM_LDFLAGS := -Wl,--cpu=8.1-M.Main.mve.no_dsp.no_fp + + else ifeq ($(TARGET_ARCH), cortex-m55+nofp) + CORE=M55 + ARM_LDFLAGS := -Wl,--cpu=8.1-M.Main.mve.no_fp + TARGET_SPECIFIC_FLAGS += -D__DSP_PRESENT=1 + + else ifeq ($(TARGET_ARCH), cortex-m7) + CORE=M7 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M7.no_fp + GCC_TARGET_ARCH := cortex-m7+nofp + + else ifeq ($(TARGET_ARCH), cortex-m7+fp) + CORE=M7 + ARM_LDFLAGS := -Wl,--cpu=Cortex-M7 + FLOAT=hard + GCC_TARGET_ARCH := cortex-m7 + + else + $(error "TARGET_ARCH=$(TARGET_ARCH) is not supported") + endif + + ifneq ($(filter cortex-m55%,$(TARGET_ARCH)),) + # soft-abi=soft disables MVE - use softfp instead for M55. + ifeq ($(FLOAT),soft) + FLOAT=softfp + endif + endif + + # Toolchain specfic flags + ifeq ($(TOOLCHAIN), armclang) + CXX_TOOL := armclang + CC_TOOL := armclang + AR_TOOL := armar + LD := armlink + + FLAGS_ARMC = \ + --target=arm-arm-none-eabi \ + -mcpu=$(TARGET_ARCH) + + # For debug, include specific dwarf format symbols + ifeq ($(BUILD_TYPE), debug) + ifneq ($(ARMCLANG_DEBUG_DWARF_LEVEL),) + FLAGS_ARMC += -gdwarf-$(ARMCLANG_DEBUG_DWARF_LEVEL) + endif + endif + + CXXFLAGS += $(FLAGS_ARMC) + CCFLAGS += $(FLAGS_ARMC) + LDFLAGS += $(ARM_LDFLAGS) + + # Arm Compiler will not link the Math library (see below), therefore we're filtering it out. + # See Fatal error: L6450U: Cannot find library m: + # "Arm Compiler is designed to run in a bare metal environment, + # and automatically includes implementations of these functions, + # and so no such flag is necessary." + # https://developer.arm.com/documentation/100891/0611/troubleshooting/general-troubleshooting-advice + MICROLITE_LIBS := $(filter-out -lm,$(MICROLITE_LIBS)) + + else ifeq ($(TOOLCHAIN), gcc) + export PATH := $(MAKEFILE_DIR)/downloads/gcc_embedded/bin/:$(PATH) + DOWNLOAD_RESULT := $(shell $(MAKEFILE_DIR)/arm_gcc_download.sh ${MAKEFILE_DIR}/downloads) + ifneq ($(DOWNLOAD_RESULT), SUCCESS) + $(error Something went wrong with the GCC download: $(DOWNLOAD_RESULT)) + endif + + TARGET_TOOLCHAIN_PREFIX := arm-none-eabi- + + FLAGS_GCC = -mcpu=$(GCC_TARGET_ARCH) -mfpu=auto + CXXFLAGS += $(FLAGS_GCC) + CCFLAGS += $(FLAGS_GCC) + + else + $(error "TOOLCHAIN=$(TOOLCHAIN) is not supported.") + endif + + PLATFORM_FLAGS = \ + -DTF_LITE_MCU_DEBUG_LOG \ + -mthumb \ + -mfloat-abi=$(FLOAT) \ + -funsigned-char \ + -mlittle-endian \ + -Wno-type-limits \ + -Wno-unused-private-field \ + -fomit-frame-pointer \ + -MD \ + -DCPU_CORTEX_$(CORE)=1 \ + $(TARGET_SPECIFIC_FLAGS) + + # Common + C/C++ flags + CXXFLAGS += $(PLATFORM_FLAGS) + CCFLAGS += $(PLATFORM_FLAGS) + +endif |