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###############################################################################
# Makefile for DiskLoader
###############################################################################
## General Flags
PROJECT = DiskLoader
TARGET = DiskLoader.elf
CC = avr-gcc
# BOARD2
MCU = atmega32u4
AVR_FREQ = 16000000L
# Specify the Arduino model using the assigned PID. This is used by Descriptors.c
# to set PID and product descriptor string
# Arduino Leonardo PID
ARDUINO_MODEL_PID = 0x0089
# Arduino Micro PID
#ARDUINO_MODEL_PID = 0x0035
# Change if your programmer is different
AVRDUDE_PROGRAMMER = avrispmkII
AVRDUDE_PORT = usb
# program name should not be changed...
PROGRAM = DiskLoader
AVRDUDE = avrdude
AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) -p $(MCU)
## Options common to compile, link and assembly rules
COMMON = -mmcu=$(MCU)
override CFLAGS = -g -Wall -Os -mmcu=$(MCU) -DF_CPU=$(AVR_FREQ) -DARDUINO_MODEL_PID=$(ARDUINO_MODEL_PID) $(DEFS) -ffunction-sections -gdwarf-2 -fdata-sections -fno-split-wide-types
## Assembly specific flags
ASMFLAGS = $(COMMON)
ASMFLAGS += $(CFLAGS)
ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2
## Linker flags
LDFLAGS = $(COMMON)
#LDFLAGS += -Wl,-gc-sections,-Map=DiskLoader.map,--cref
#LDFLAGS += -Wl,--section-start=.text=0x7000,--relax
#LDFLAGS += -Wl,--gc-sections
#LDFLAGS += -nodefaultlibs -nostartfiles
#LDFLAGS += -nostartfiles
LDFLAGS += -Wl,-gc-sections,-Map=DiskLoader.map,--section-start=.text=0x7000,--relax
## Intel Hex file production flags
HEX_EEPROM_FLAGS = -j .eeprom
HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings
## Objects explicitly added by the user
LINKONLYOBJECTS =
MODULES := .
SRC_DIR := $(addprefix src/,$(MODULES))
BUILD_DIR := $(addprefix build/,$(MODULES))
SRC := $(foreach sdir,$(SRC_DIR),$(wildcard $(sdir)/*.cpp))
OBJ := $(patsubst src/%.cpp,build/%.o,$(SRC))
DEP := $(OBJ:%.o=%.d)
INCLUDES := $(addprefix -I,$(SRC_DIR))
vpath %.cpp $(SRC_DIR)
.PHONY: all checkdirs clean
all: checkdirs $(TARGET) DiskLoader.hex DiskLoader.lss size
-include $(DEP)
checkdirs: $(BUILD_DIR)
$(BUILD_DIR):
@mkdir -p $@
clean:
@rm -rf build/
@rm -f *.hex
@rm -f *.elf
@rm -f *.lss
@rm -f *.map
define make-goal
$1/%.o: %.cpp
$(CC) $(INCLUDES) $(CFLAGS) -c $$< -MD -o $$@
endef
$(foreach bdir,$(BUILD_DIR),$(eval $(call make-goal,$(bdir))))
$(TARGET): $(OBJ)
$(CC) $(LDFLAGS) $(LINKONLYOBJECTS) $(LIBDIRS) $(LIBS) $^ -o $@
%.hex: $(TARGET)
avr-objcopy -O ihex $(HEX_FLASH_FLAGS) $< $@
%.lss: $(TARGET)
avr-objdump -h -S $< > $@
size: $(TARGET)
@echo
# @avr-size -C --mcu=${MCU} ${TARGET}.elf
program: $(TARGET).hex
$(AVRDUDE) $(AVRDUDE_FLAGS) -B 1 -u -U flash:w:$(TARGET).hex
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