mk/avr.rules.mk

   1
   2
   3 CC      = avr-gcc
   4 OBJCOPY = avr-objcopy
   5 OBJDUMP = avr-objdump
   6 SIZE    = avr-size
   7 NM      = avr-nm
   8 AVRDUDE = avrdude
   9 RM      = rm -f
  10 COPY    = cp
  11
  12 # Define all object files.
  13 OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
  14
  15
  16 # Compiler flags to generate dependency files.
  17 GENDEPFLAGS = -MMD -MP -MF .dep/$(@F:%.o=%.d)
  18
  19
  20 # Combine all necessary flags and optional flags.
  21 # Add target processor to flags.
  22 ALL_CFLAGS = -mmcu=$(MCU) $(CFLAGS) $(GENDEPFLAGS)
  23
  24 AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
  25 AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
  26 AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE)
  27
  28 # Be silent per default, but 'make V=1' will show all compiler calls.
  29 ifneq ($(V),1)
  30 Q       := @
  31 NULL    := 2>/dev/null
  32 else
  33 QP      := \#
  34 endif
  35
  36 .PHONY: elf hex lss sym size
  37 elf: $(TARGET).elf
  38 hex: $(TARGET).hex
  39 lss: $(TARGET).lss
  40 sym: $(TARGET).sym
  41
  42 size: $(TARGET).elf
  43         @$(QP)printf "  SIZE $(TARGET).elf\n"
  44         $(Q)$(SIZE) $(TARGET).elf
  45
  46 # Program the device.
  47 .PHONY: flash fuses
  48 flash: $(TARGET).hex
  49         $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
  50
  51 fuses:
  52         $(AVRDUDE) $(AVRDUDE_FLAGS) -u -U hfuse:w:$(HFUSE):m -U lfuse:w:$(LFUSE):m
  53
  54
  55 .SUFFIXES: .elf .hex .eep .lss .sym
  56
  57 %.hex: %.elf
  58         @$(QP)printf "  OBJCOPY $(*).hex\n"
  59         $(Q)$(OBJCOPY) -Oihex -R .eeprom $< $@
  60
  61
  62 # Create extended listing file from ELF output file.
  63 %.lss: %.elf
  64         @$(QP)printf "  OBJDUMP $@\n"
  65         $(Q)$(OBJDUMP) -h -S $< > $@
  66
  67 # Create a symbol table from ELF output file.
  68 %.sym: %.elf
  69         @$(QP)printf "  NM $@\n"
  70         $(Q)$(NM) -n $< > $@
  71
  72
  73
  74 # Link: create ELF output file from object files.
  75 .SECONDARY : $(TARGET).elf
  76 .PRECIOUS : $(OBJ)
  77 %.elf %.map: $(OBJ)
  78         @$(QP)printf "  LD      $@\n"
  79         $(Q)$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
  80
  81
  82 # Compile: create object files from C source files.
  83 %.o: %.c
  84         @$(QP)printf "  CC      $<\n"
  85         $(Q)$(CC) -c $(ALL_CFLAGS) $< -o $@
  86
  87
  88 # Target: clean project.
  89 .PHONY: clean distclean
  90 clean:
  91         @$(QP)printf "  CLEAN\n"
  92         $(Q)$(RM) $(TARGET).elf $(TARGET).lss $(TARGET).map $(TARGET).sym \
  93         $(OBJ) $(SRC:.c=.s) .dep/*
  94
  95 distclean: clean
  96         @$(QP)printf "  DISTCLEAN\n"
  97         $(Q)$(RM) $(TARGET).hex $(TARGET).tar.gz
  98
  99 .PHONY: dist
 100 dist: build
 101         tar cvfz $(TARGET).tar.gz \
 102         $(SRC) \
 103         $(TARGET).hex $(TARGET).eep
 104
 105 # Include the dependency files.
 106 -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)