stm32_sensorhub/Makefile

################################################################################
#
################################################################################

VERBOSE=@

HELP=''

STM_MCU_FAMILY=STM32F0
STM_MCU_SUB_FAMILY=72
STM_MCU_PIN_COUNT=C
STM_MCU_CODE_SIZE=8
STM_MCU_PACKAGE=T
STM_MCU=$(STM_MCU_FAMILY)$(STM_MCU_SUB_FAMILY)$(STM_MCU_PIN_COUNT)$(STM_MCU_CODE_SIZE)

STM_MCU_FAMILY_LOWER=$(shell echo $(STM_MCU_FAMILY) | tr A-Z a-z)
STM_MCU_CODE_SIZE_LOWER=$(shell echo $(STM_MCU_CODE_SIZE) | tr A-Z a-z)

ifeq ($(VARIANT),)
  VARIANT = debug
endif

OS := $(shell uname)

ifeq ($(OS),Linux)
TOOLCHAIN := /usr/bin
else
TOOLCHAIN :=
endif
TOOLCHAIN_PREFIX := arm-none-eabi-

CC        := $(TOOLCHAIN)/$(TOOLCHAIN_PREFIX)gcc
GDB       := $(TOOLCHAIN)/$(TOOLCHAIN_PREFIX)gdb
AS        := $(TOOLCHAIN)/$(TOOLCHAIN_PREFIX)as
LD        := $(TOOLCHAIN)/$(TOOLCHAIN_PREFIX)gcc
OBJCOPY   := $(TOOLCHAIN)/$(TOOLCHAIN_PREFIX)objcopy
SIZE      := $(TOOLCHAIN)/$(TOOLCHAIN_PREFIX)size

ECHO := echo
MKDIR := mkdir -p
RM := rm -rf

OUT = out/$(VARIANT)
ELF = $(OUT)/stm.elf

CFLAGS += -g

CFLAGS += -mcpu=cortex-m0
CFLAGS += -mthumb
CFLAGS += -mfloat-abi=soft
#CFLAGS += -mfpu=fpv5-sp-d16
CFLAGS += '-D__weak=__attribute__((weak))'
CFLAGS += '-D__packed="__attribute__((__packed__))"'
CFLAGS += -DUSE_HAL_DRIVER
ifeq ($(STM_MCU),STM32F072C8)
CFLAGS += -D$(STM_MCU_FAMILY)$(STM_MCU_SUB_FAMILY)xB
else
CFLAGS += -D$(STM_MCU_FAMILY)$(STM_MCU_SUB_FAMILY)x$(STM_MCU_CODE_SIZE)
endif
CFLAGS += -Wall
CFLAGS += -Werror
CFLAGS += -fmessage-length=0
CFLAGS += -ffunction-sections
CFLAGS += -c
CFLAGS += -fmessage-length=0
#CFLAGS += -MMD
#CFLAGS += -MP

CFLAGS += -Icubemx/Inc
CFLAGS += -Icubemx/Drivers/$(STM_MCU_FAMILY)xx_HAL_Driver/Inc
CFLAGS += -Icubemx/Drivers/$(STM_MCU_FAMILY)xx_HAL_Driver/Inc/Legacy
CFLAGS += -Icubemx/Drivers/CMSIS/Device/ST/$(STM_MCU_FAMILY)xx/Include
CFLAGS += -Icubemx/Drivers/CMSIS/Include
CFLAGS += -Icubemx/Middlewares/Third_Party/FreeRTOS/Source
CFLAGS += -Icubemx/Middlewares/Third_Party/FreeRTOS/Source/include
CFLAGS += -Icubemx/Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS
CFLAGS += -Icubemx/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM0
CFLAGS += -Icubemx/Middlewares/ST/STM32_USB_Device_Library/Core/Inc
CFLAGS += -Icubemx/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc

ifeq ($(VARIANT),debug)
  CFLAGS_PROJECT += -O0
  CFLAGS_PROJECT += -DDEBUG_LEVEL=5
else ifeq ($(VARIANT),release)
  CFLAGS_PROJECT += -O3
  CFLAGS_PROJECT += -DDEBUG_LEVEL=0
  CFLAGS_PROJECT += -DNDEBUG
endif
CFLAGS_OPUS += -O3
CFLAGS_OPUS += -DDEBUG_LEVEL=0
CFLAGS_OPUS += -DNDEBUG

LDFLAGS =
LDFLAGS += -mcpu=cortex-m0
LDFLAGS += -mthumb
LDFLAGS += -mfloat-abi=soft
#LDFLAGS += -mfpu=fpv5-sp-d16
LDFLAGS += -specs=nosys.specs
LDFLAGS += -specs=nano.specs
LDFLAGS += -T"cubemx/$(STM_MCU)$(STM_MCU_PACKAGE)x_FLASH.ld"
LDFLAGS += -Wl,-Map=$(OUT)/output.map
LDFLAGS += -Wl,--gc-sections
LDFLAGS += -lm

# All Target
HELP += 'all'
all: $(ELF)

# All of the sources participating in the build are defined here
SOURCE =
include gcc/freertos.mk
include gcc/stm32.mk
include gcc/middleware_usb.mk
include gcc/middleware_usb_class.mk
include gcc/drivers.mk
include gcc/startup.mk
include gcc/project.mk
include openocd/openocd.mk
include openocd/flash.mk

ifneq ($(MAKECMDGOALS),clean)
-include $(addprefix $(OUT)/,$(SOURCE:.c=.d))
endif

OBJC = $(SOURCE:.c=.o)
OBJS = $(subst ../,,$(addprefix $(OUT)/,$(OBJC:.s=.o)))

$(OUT):
	$(VERBOSE)$(MKDIR) $@

# Tool invocations
$(ELF): $(OBJS) $(OBJA) cubemx/$(STM_MCU)$(STM_MCU_PACKAGE)x_FLASH.ld | $(OUT)
	$(VERBOSE)$(ECHO) '[LD] $@'
	$(LD) $(LDFLAGS) -o $@ $(OBJS) $(OBJA) $(LIBS)
	$(MAKE) --no-print-directory post-build

# Other Targets
HELP += 'clean'
clean:
	-$(VERBOSE)$(ECHO) '[RM] out'
	-$(VERBOSE)$(RM) $(OUT)

post-build:
	-$(VERBOSE)$(ECHO) 'Generating binary and Printing size information:'
	$(VERBOSE)$(OBJCOPY) -O binary $(ELF) $(ELF:.elf=.bin)
	$(VERBOSE)$(OBJCOPY) -O binary $(ELF) $(ELF:.elf=.hex)
	$(VERBOSE)$(SIZE) $(ELF)
	-$(VERBOSE)$(ECHO) ' '

.PHONY: all clean dependents help
.SECONDARY: post-build

help:
	-$(VERBOSE)$(ECHO) 'targets: $(HELP)'