# $Id: Makefile.avr,v 1.10 2008/02/07 19:56:56 oliverschmidt Exp $

### Check if we are running under Windows

ifndef WINDIR
  ifdef OS
    ifneq (,$(findstring Windows,$(OS)))
      WINDIR := Windows
    endif
  endif
endif

.SUFFIXES:

### Define the CPU directory
CONTIKI_CPU=$(CONTIKI)/cpu/avr

### Define the source files we have in the AVR port

AVR        = leds-arch.c leds.c clock.c random.c
ELFLOADER  = elfloader.c elfloader-avr.c symtab-avr.c
TARGETLIBS = clock.c flash.c mtarch.c

CONTIKI_TARGET_SOURCEFILES += ${AVR} $(SENSORS) \
                              $(SYSAPPS) $(ELFLOADER) \
                              $(TARGETLIBS)

CONTIKI_SOURCEFILES        += $(CONTIKI_TARGET_SOURCEFILES)


### Compiler definitions
CC       = avr-gcc
LD       = avr-gcc
AS       = avr-as
AR       = avr-ar
OBJCOPY  = avr-objcopy
STRIP    = avr-strip
CFLAGSNO = -I. -I$(CONTIKI)/core -I$(CONTIKI_CPU) \
           -I$(CONTIKI)/platform/$(TARGET) \
           ${addprefix -I,$(APPDIRS)} \
           -Wall -mmcu=$(MCU) -gstabs
CFLAGS   = $(CFLAGSNO) -Os
BOOTLOADER_START = 0x1e000
LDFLAGS  = -mmcu=$(MCU) -Wl,-Map=contiki-$(TARGET).map \
		-Wl,--section-start=.bootloader=$(BOOTLOADER_START)


### Setup directory search path for source files

CONTIKI_TARGET_DIRS_CONCAT = ${addprefix $(CONTIKI)/platform/$(TARGET)/, \
                               $(CONTIKI_TARGET_DIRS)}

vpath %.c $(PROJECTDIRS) $(CONTIKI)/cpu/avr/dev \
	  $(CONTIKIDIRS) $(APPDIRS) $(CONTIKI_TARGET_DIRS_CONCAT) \
	  $(CONTIKI_CPU)

### Compilation rules

$(OBJECTDIR)/%.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@

%.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@

%.ko: %.o
	$(STRIP) -K _init -K _fini --strip-unneeded -g -x $< -o $@

%.elf:	%.co $(PROJECT_OBJECTFILES) contiki-$(TARGET).a symbols.o
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(filter-out %.a,$^) $(filter %.a,$^) $(LDLIBS)

%.hex: %.out
	$(OBJCOPY) $^ -O ihex $@

# Add a namelist to the kernel
%.out: %.co $(PROJECT_OBJECTFILES) contiki-$(TARGET).a
	$(CONTIKI)/tools/make-empty-symbols
	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $^ $(LIBC) symbols.c
ifdef SYMBOLS
	$(CONTIKI)/tools/avr-make-symbols $@ 
	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $^ $(LIBC) symbols.c
	$(CONTIKI)/tools/avr-make-symbols $@
	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ $^ $(LIBC) symbols.c
endif

#%.hex: %.elf
#	$(OBJCOPY) -R .eeprom $^ -O ihex $@

%.eep: %.out
	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
	--change-section-lma .eeprom=0 -O ihex $^ $@


%-stripped.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@
	$(STRIP) --strip-unneeded -g -x $@

#%.ce: %.c
#	$(CC) $(CFLAGS) -c $< -o $@
#	$(STRIP) --strip-unneeded -g -x $@

#%.ce: 	%.co
#	$(LD) -i -r --unresolved-symbols=ignore-in-object-files -mavr5 -o $@ $^
#	$(STRIP) --strip-unneeded -g -x $@

%.co: %.c
	$(CONTIKI)/tools/make-empty-symbols
	$(CC) $(CFLAGS) -DAUTOSTART_ENABLE -c $< -o $@

%-stripped.o: %.o
	$(STRIP) --strip-unneeded -g -x -o $@ $<

%.o: ${CONTIKI_TARGET}/loader/%.S
	$(AS) -o $(notdir $(<:.S=.o)) $<

%.srec: %.$(TARGET)
	$(OBJCOPY) -O srec $< $@

### Upload image
%.u: %.hex
	avrdude ${AVRDUDE_OPTIONS} -P ${AVRDUDE_PORT} -c ${AVRDUDE_PROGRAMMER} -p ${MCU} -U flash:w:$<

symbols.c:
	@${CONTIKI}/tools/make-empty-symbols