Makefile

#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

# default devkitPro installation directory, change this if you have it somewhere else
DEVKITPRO_BASE_DIR := $(HOME)/devkitPro
ifeq ($(OS),Windows_NT)
	DEVKITPRO_BASE_DIR := C:/devkitPro
endif

#---------------------------------------------------------------------------------
# TARGET is the name of the output, if this ends with _mb generates a multiboot image
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
# TITLE is the title of the rom as stored in the header
# GAMECODE & MAKERCODE, see above for TITLE 
#---------------------------------------------------------------------------------
TARGET		:=	VFDump_mb
BUILD		:=	build
SOURCES		:=	src
INCLUDES	:=	

TITLE		:=	VFDump
GAMECODE	:=	VFDM
MAKERCODE	:=	LN

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-mthumb -mthumb-interwork

CFLAGS	:=	-Wall -O3\
			-mcpu=arm7tdmi -mtune=arm7tdmi\
 			-fomit-frame-pointer\
			-ffast-math \
			$(ARCH)

CFLAGS	+=	$(INCLUDE)

AFLAGS	:=	$(ARCH)
LDFLAGS	=	$(ARCH) -Wl,-Map,$(notdir $@).map

#---------------------------------------------------------------------------------
# path to tools - this can be deleted if you set the path in your OS
#---------------------------------------------------------------------------------
export PATH := $(DEVKITPRO_BASE_DIR)/devkitARM/bin/:$(DEVKITPRO_BASE_DIR)/tools/bin/:$(PATH)

#---------------------------------------------------------------------------------
# absolute path required since this makefile uses the build directory
# as the working directory
#---------------------------------------------------------------------------------
LIBGBA	:=	$(DEVKITPRO_BASE_DIR)/libgba

#---------------------------------------------------------------------------------
# the prefix on the compiler executables
#---------------------------------------------------------------------------------
PREFIX			:=	arm-none-eabi-
#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project
#---------------------------------------------------------------------------------
LIBS	:=	-lgba


#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:=	$(LIBGBA)


#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT	:=	$(CURDIR)/$(TARGET)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir))

export CC		:=	$(PREFIX)gcc
export CXX		:=	$(PREFIX)g++
export AR		:=	$(PREFIX)ar
export OBJCOPY	:=	$(PREFIX)objcopy
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
#export LD		:=	$(CXX)
export LD		:=	$(CC)

CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
PCXFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.pcx)))
BINFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.bin)))

export OFILES	:=	$(BINFILES:.bin=.o) $(PCXFILES:.pcx=.o)\
					$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
					$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
					-I$(CURDIR)/$(BUILD)

export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)

.PHONY: $(BUILD) clean

#---------------------------------------------------------------------------------
$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) *.elf


#---------------------------------------------------------------------------------
else

DEPENDS	:=	$(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(OUTPUT).gba	:	$(OUTPUT).elf

$(OUTPUT).elf	:	$(OFILES)

#---------------------------------------------------------------------------------
%.gba: %.elf
	@echo built ... $(notdir $@)
	@$(OBJCOPY) -O binary $< $@
	@gbafix $@ -t'$(TITLE)' -c$(GAMECODE) -m$(MAKERCODE)

#---------------------------------------------------------------------------------
%_mb.elf:
	@echo linking multiboot
	@$(LD) -specs=gba_mb.specs $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@

#---------------------------------------------------------------------------------
%.elf:
	@echo linking cartridge
	@$(LD)  $(LDFLAGS) -specs=gba.specs $(OFILES) $(LIBPATHS) $(LIBS) -o $@



#---------------------------------------------------------------------------------
# Compile Targets for C/C++
#---------------------------------------------------------------------------------

#---------------------------------------------------------------------------------
%.o : %.cpp
	@echo $(notdir $<)
	@$(CXX) -MM $(CFLAGS) -o $*.d $<
	@$(CXX)  $(CFLAGS) -c $< -o$@

#---------------------------------------------------------------------------------
%.o : %.c
	@echo $(notdir $<)
	@$(CC) -MM $(CFLAGS) -o $*.d $<
	@$(CC)  $(CFLAGS) -c $< -o$@

#---------------------------------------------------------------------------------
%.o : %.s
	@echo $(notdir $<)
	@$(CC) -MM $(CFLAGS) -o $*.d $<
	@$(CC)  $(ASFLAGS) -c $< -o$@

define bin2o
	cp $(<) $(*).tmp
	$(OBJCOPY) -I binary -O elf32-littlearm -B arm \
	--rename-section .data=.rodata,readonly,data,contents \
	--redefine-sym _binary_$*_tmp_start=$*\
	--redefine-sym _binary_$*_tmp_end=$*_end\
	--redefine-sym _binary_$*_tmp_size=$*_size\
	$(*).tmp $(@)
	echo "extern const u8" $(*)"[];" > $(*).h
	echo "extern const u32" $(*)_size[]";" >> $(*).h
	rm $(*).tmp
endef

#---------------------------------------------------------------------------------
%.o	:	%.pcx
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)

#---------------------------------------------------------------------------------
%.o	:	%.bin
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)

-include $(DEPENDS)

#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------