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PORT = /dev/ttyUSB0
C++ = avr-g++
CC = avr-gcc
LD = avr-gcc
RM = rm -f
MCU = atmega32u4
TARGET = main
SRCS += main.cpp
C_CPP_FLAGS += -mmcu=$(MCU)
C_CPP_FLAGS += -Wl,-gc-sections
SHARED_FLAGS += -Os
C_CPP_FLAGS += -mcall-prologues
C_CPP_FLAGS += -g
C_CPP_FLAGS += -Wl,-relax
C_CPP_FLAGS += -MMD
C_CPP_FLAGS += -ffunction-sections
C_CPP_FLAGS += -fdata-sections
LFLAGS += -flto
LFLAGS += -fuse-linker-plugin
LFLAGS += -lc -lm
# LFLAGS += -L/usr/avr/lib/avr5/ -L/usr/lib/gcc/avr/12.2.0/avr5 -lgcc -lm -lc -latmega32u4
# LFLAGS += -flto -fuse-linker-plugin -mmcu=atmega32u4 -Wl,--gc-sections -Os -lc -lm
CFLAGS += -fno-fat-lto-objects
# CFLAGS += -std=gnu11
CPPFLAGS += -fpermissive
CPPFLAGS += -fno-exceptions
CPPFLAGS += -fno-threadsafe-statics
CPPFLAGS += -fno-devirtualize
# CPPFLAGS += -std=gnu++11
LFLAGS += $(SHARED_FLAGS)
CFLAGS += $(C_CPP_FLAGS) $(SHARED_FLAGS)
CPPFLAGS += $(C_CPP_FLAGS) $(SHARED_FLAGS)
include zumo.mk
OBJS := $(patsubst %.c,%.o, $(SRCS))
OBJS := $(patsubst %.cpp,%.o, $(OBJS))
MAKEFLAGS += -j
.PHONY: all clean flash
all: $(TARGET).hex
%.o: %.cpp
$(C++) $(CPPFLAGS) -o $@ -c $<
%.o: %.c
$(CC) $(CFLAGS) -o $@ -c $<
$(TARGET): $(OBJS)
$(LD) $(LFLAGS) -o $@ $^
$(TARGET).hex: $(TARGET)
avr-objcopy -R .eeprom -O ihex $< $@
flash: $(TARGET).hex
avrdude -p $(MCU) -c avr109 -P $(PORT) -U flash:w:$(TARGET).hex
clean:
$(RM) $(TARGET) $(TARGET).hex $(OBJS)
compile_commands.json: makefile
compiledb make -Bn
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